UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-CSR

   CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

                  Investment Company Act file number 811-21652
                                                     -------------------------

                     Fiduciary/Claymore MLP Opportunity Fund
------------------------------------------------------------------------------
               (Exact name of registrant as specified in charter)

                   2455 Corporate West Drive, Lisle, IL 60532
------------------------------------------------------------------------------
               (Address of principal executive offices) (Zip code)

                                J. Thomas Futrell
                   2455 Corporate West Drive, Lisle, IL 60532
------------------------------------------------------------------------------
                     (Name and address of agent for service)

       Registrant's telephone number, including area code: (630) 505-3700
                                                           ----------------

                      Date of fiscal year end: November 30
                                               ------------

                     Date of reporting period: May 31, 2008
                                               ------------

Form N-CSR is to be used by management investment companies to file reports with
the Commission not later than 10 days after the transmission to stockholders of
any report that is required to be transmitted to stockholders under Rule 30e-1
under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may
use the information provided on Form N-CSR in its regulatory, disclosure review,
inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-CSR,
and the Commission will make this information public. A registrant is not
required to respond to the collection of information contained in Form N-CSR
unless the Form displays a currently valid Office of Management and Budget
("OMB") control number. Please direct comments concerning the accuracy of the
information collection burden estimate and any suggestions for reducing the
burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW,
Washington, DC 20549-0609. The OMB has reviewed this collection of information
under the clearance requirements of 44 U.S.C. Section 3507.



Item 1.  Reports to Stockholders.

The registrant's semi-annual report transmitted to shareholders pursuant to Rule
30e-1 under the Investment Company Act of 1940, as amended, is as follows:

  SEMIANNUAL
      REPORT
May 31, 2008
 (Unaudited)

                            Fiduciary/Claymore     |   FMO
                          MLP Opportunity Fund


Graphic:Pipelinr

Logo: FAMCO
Logo: Claymore(R)



             www.fiduciaryclaymore.com
      ... your pipeline to the LATEST,
 most up-to-date INFORMATION about the
Fiduciary/Claymore MLP Opportunity Fund

Graphic:Pipeline

The shareholder report you are reading right now is just the beginning of the
story. Online at WWW.FIDUCIARYCLAYMORE.COM, you will find:

o    Daily, weekly and monthly data on share prices, distributions, dividends
     and more

o    Portfolio overviews and performance analyses

o    Announcements, press releases and special notices

o    Fund and adviser contact information

Fiduciary Asset Management and Claymore are constantly updating and expanding
shareholder information services on the Fund's website, in an ongoing effort to
provide you with the most current information about how your Fund's assets are
managed, and the results of our efforts. It is just one more small way we are
working to keep you better informed about your investment in the Fund.


2 | SemiAnnual Report | May 31, 2008



FMO | Fiduciary/Claymore MLP Opportunity Fund

Dear Shareholder|

Dear Shareholder:

We thank you for your investment in the Fiduciary/Claymore MLP Opportunity Fund
(the "Fund"). This report covers the Fund's performance for the semi-annual
period ended May 31, 2008.

The Fund's investment objective is to provide a high level of after-tax total
return with an emphasis on current distributions paid to shareholders. Fiduciary
Asset Management, LLC ("FAMCO"), the Fund's sub-adviser, seeks to achieve that
objective by investing at least 80% of the Fund's managed assets in master
limited partnership ("MLP") entities, which can provide shareholders with
attractive tax-deferred income.

FAMCO manages a wide range of institutional products and is one of the leading
managers of hedged equity investments. As of May 31, 2008, FAMCO managed or
supervised approximately $17.8 billion in assets.

All Fund returns cited - whether based on net asset value ("NAV") or market
price - assume the reinvestment of all distributions. For the six-month period
ending May 31, 2008, the Fund provided a total return based on market price of
3.53% and a return of -2.07% based on NAV. As of May 31, 2008, the Fund's last
closing market price of $22.70 represented a premium of 3.65% to the Fund's NAV
of $21.90. Past performance is not a guarantee of future results.

The market value of the Fund's shares fluctuates from time to time, and it may
be higher or lower than the Fund's NAV.

On January 2, 2008, the Board of Trustees of the Fund announced that it would
increase the quarterly dividend by 1.41% to $0.36 per share, effective with the
January 2008 distribution. The Board of Trustees subsequently authorized two
additional dividend increases during this fiscal period: a 1.39% increase to
$0.365 effective with the April 2008 distribution, and a 1.37% increase to $0.37
per share effective with the July 2008 distribution. This July-declared
quarterly dividend level of $0.37 represents an annualized distribution rate of
6.52%, based on the Fund's closing market price of $22.70 on May 31, 2008.

Under the Fund's Automatic Dividend Reinvestment Plan (the "Plan"), a
shareholder whose Common Shares are registered in his or her own name will have
all distributions reinvested automatically unless the shareholder elects to
receive cash. Distributions with respect to Common Shares registered in the name
of a broker-dealer or other nominee (that is, in "street name") will be
reinvested by the broker or nominee in additional Common Shares under the Plan,
unless the service is not provided by the broker or nominee or the shareholder
elects to receive distributions in cash. The Plan is described in detail on page
24 of the Fund's semi-annual report. When shares trade at a discount to NAV, the
Plan takes advantage

                                            SemiAnnual Report | May 31, 2008 | 3


FMO | Fiduciary/Claymore MLP Opportunity Fund | Dear Shareholder continued

of the discount by reinvesting the quarterly dividend distribution in common
shares of the Fund purchased in the market at a price less than NAV. Conversely,
when the market price of the Fund's common shares is at a premium above NAV, the
Plan reinvests participants' dividends in newly-issued common shares at NAV,
subject to an IRS limitation that the purchase price cannot be more than 5%
below the market price per share. The Plan provides a cost-effective means to
accumulate additional shares and enjoy the benefits of compounding returns over
time.

To learn more about the Fund's performance and investment strategy, we encourage
you to read the Questions & Answers section of the report, which begins on page
5. You'll find information on FAMCO's investment philosophy, its views on the
economy and market environment, and detailed information about the factors that
impacted the Fund's performance.

We appreciate your investment and look forward to serving your investment needs
in the future. For the most up-to-date information on your investment, please
visit the Fund's website at www.fiduciaryclaymore.com.

Sincerely,

/s/ J. Thomas Futrell

J. Thomas Futrell
Fiduciary/Claymore MLP Opportunity Fund



4 | SemiAnnual Report | May 31, 2008



FMO |  Fiduciary/Claymore MLP Opportunity Fund

QUESTIONS & ANSWERS|

The Fiduciary/Claymore MLP Opportunity Fund (the "Fund") is managed by Fiduciary
Asset Management, LLC. ("FAMCO"). In the following interview, Portfolio Manager
James J. Cunnane, Jr., CFA, discusses the Fund's performance for the semi-annual
period ended May 31, 2008.

--------------------------------------------------------------------------------
WILL YOU REMIND US OF THIS FUND'S OBJECTIVE AND INVESTMENT STRATEGY?

The Fund's investment objective is to provide a high level of after-tax total
return with an emphasis on current distributions paid to shareholders. The total
return sought by the Fund includes appreciation in the net asset value ("NAV")
of the Fund's common shares and all distributions made by the Fund to its common
shareholders, regardless of the tax characterization of such distributions. The
Fund has been structured to seek to provide an efficient vehicle through which
its shareholders may invest in a portfolio of publicly traded securities of
master limited partnerships ("MLPs") and related entities. MLPs combine the tax
benefits of limited partnerships with the liquidity of publicly traded
securities. The Fund believes that as a result of the tax characterization of
cash distributions made by MLPs to their investors, a significant portion of the
Fund's income will be tax-deferred, which may allow distributions by the Fund to
its shareholders to include high levels of tax-deferred income.

Under normal market conditions, we invest at least 80% of the Fund's managed
assets in MLP entities, and at least 65% of managed assets in equity securities
of MLP entities. MLP entities include affiliates of MLPs that own general
partner interests or, in some cases, subordinated units, registered or
unregistered common units, or other limited partner units in an MLP. The Fund
may also invest in common stocks of large capitalization companies, including
companies engaged in the energy, natural resources and real estate sectors. We
may employ an option strategy of writing (selling) covered call options on
common stocks held in the Fund's portfolio in order to generate current income
and gains. Up to 40% of the Fund's managed assets may be invested in
unregistered or otherwise restricted securities, which may consist of equity
securities of MLP entities and other securities of public and non-public
companies, but no more than 20% of its managed assets will be invested in
restricted securities issued by non-public companies.


--------------------------------------------------------------------------------
HOW WOULD YOU DESCRIBE THE MASTER LIMITED PARTNERSHIP MARKET OVER THE LAST SIX
MONTHS?

In recent months, MLPs have been in a generally sideways trading pattern but
with considerable volatility. This followed a rather dramatic sell-off in the
MLP market in the summer of 2007, when there was a significant change in the
financial landscape, with much wider credit spreads and a marked decline in
investors' risk tolerance.

A significant pull-back in late March 2008 was associated with the continued
de-levering of the market that included MLPs. After that disruption, MLPs moved
back into the same trading range we have seen over the last six to nine months.
Using the Alerian MLP Index (the "Index") as a benchmark for the industry, total
return for the six-month period ended May 31, 2008, was 1.25%.(1)

In the spring of 2008, our analysis indicated that the market for MLPs was as
cheap on a fundamental valuation basis as it had been at any time in the last
five years. Of necessity, that comparison of valuation over time included only
those MLPs that have operated for several years, excluding some of the newer
ones with less proven business plans. What we have seen in the last few months
is not a break-down in the fundamentals of MLPs, but rather broader market
issues impacting investors in MLPs. Throughout the capital markets, there has
been an aversion to risk in any form and a pronounced de-levering across asset
classes. Some of the larger investors in MLPs, faced with the need to raise
cash, sold their MLP investments. This over-supply of MLP equities created a
significant downward pressure on MLP pricing. Fundamentals of MLPs, however,
remain sound. Most of the seasoned, well managed MLPs have continued to increase
earnings, and distributions have been increasing at an annual rate of about 10%.

There were three major drivers of performance among specific MLPs over this
period. First, prices of most commodities, especially those that relate to
energy, have been rising steadily. So, almost any business with a direct
interest in commodities, including many MLPs, has performed well.

Second, the market's risk aversion has led to a significant flight to quality.
This means that those MLPs perceived as being of higher

---------------------
1  The Alerian MLP Index measures the composite performance of the 50 most
   prominent energy MLPs, and is calculated by Standard & Poor's using a
   float-adjusted, capitalization-weighted methodology. An Index is unmanaged
   and it is not possible to invest directly in an index.

                                            SemiAnnual Report | May 31, 2008 | 5



FMO |  Fiduciary/Claymore MLP Opportunity Fund | QUESTIONS & ANSWERS continued

quality and lower risk performed better than others. In general, this means that
the largest MLPs performed best. As we analyze the MLP market, we divide the
Alerian MLP Index into quintiles on various measures including market
capitalization. Over the six months ended May 2008, the average market price of
the quintile with the largest market capitalization, $11 billion or more, was up
approximately 8.7%. None of the other quintiles produced positive returns on a
market price basis.

The third big driver of MLP market performance was a major imbalance between
supply and demand, as widening credit spreads and investors' decreased risk
tolerance created a liquidity crisis. Those MLPs that were in need of new
capital and those that had major investors who needed to raise cash by selling
assets generally performed poorly.


--------------------------------------------------------------------------------
HOW DID THE FUND PERFORM IN THIS MARKET ENVIRONMENT?

All Fund returns cited - whether based on NAV or market price - assume the
reinvestment of all distributions. For the six-month period ended May 31, 2008,
the Fund provided a total return based on market price of 3.53% and a return of
-2.07% based on NAV, trailing the Alerian MLP Index by a little over 300 basis
points. It should be noted that the broader MLP market return does not reflect
the impact of expenses or income taxes. Past performance is not a guarantee of
future results.

The market value of the shares of closed-end funds fluctuates from time to time,
and a fund's market value may be higher or lower than its net asset value. The
last closing price of the Fund's shares as of May 31, 2008, was $22.70,
representing a 3.65% premium to the NAV of $21.90. On November 30, 2007, the
Fund's market price closed at $22.66, which represented a discount of 1.95% to
the NAV of $23.11. At its inception in December 2004, the Fund's NAV was $19.10.

When comparing market value and NAV performance, it is important to consider the
special tax structure of the Fund. For every dollar earned by the Fund, the NAV
tends to rise by a smaller amount. That is because the Fund is a taxable entity,
meaning the Fund recognizes a deferred tax liability that accrues as the value
of its portfolio appreciates. This ensures the Fund's NAV reflects the after-tax
value of the unrealized gains in the Fund's portfolio. With that said, the Fund
retains those additional assets to manage until it sells the underlying
securities, subsequently realizes any gains and finally pays taxes on the sold
securities.


--------------------------------------------------------------------------------
PLEASE TELL US ABOUT THE FUND'S DISTRIBUTIONS.

On January 2, 2008, the Board of Trustees of the Fund announced that it would
increase the quarterly dividend by 1.41% to $0.36 per share, effective with the
January 2008 distribution. The Board of Trustees subsequently authorized two
additional dividend increases during this fiscal period: a 1.39% increase to
$0.365 effective with the April 2008 distribution, and a 1.37% increase to $0.37
per share effective with the July 2008 distribution.

These dividend increases were made possible by a modification to the Fund's
distribution policy announced in December 2006 that better allows the Fund to
pass through positive performance of the portfolio to Fund shareholders. We
believe the revised policy better aligns it with the Fund's investment
objective. The revised policy is consistent with our belief that distributions
from a taxable closed-end fund such as this one should reflect the expected
long-term after-tax total return potential of the portfolio. Some of the
investments under consideration have lower current yields than other possible
investments, but we believe they have better prospects for total long-term
return. The revised policy enables the Fund to generate distributions from both
net investment income and capital appreciation of portfolio securities. This
flexibility aligns well with our investment philosophy of managing the portfolio
with total return in mind. The new policy gives us the flexibility to purchase
for the Fund the securities we consider best overall, even if the net investment
income they generate does not fully fund a distribution in a given quarter.


--------------------------------------------------------------------------------
HOW IS THE FUND POSITIONED IN TERMS OF SECTORS?

Within the MLP category, the two largest sectors by far are midstream gas and
midstream oil, which together represent approximately 85% of the Index. As in
prior periods, we kept the Fund invested across the MLP market but maintained
most of its exposure in these two large sectors. As of May 31, 2008, midstream
gas represented 42.3% of long-term investments, and midstream oil represented
37.2%, so together these two large sectors represented 79.5% of long-term
investments, somewhat less than the Index.


6 | SemiAnnual Report | May 31, 2008



FMO |  Fiduciary/Claymore MLP Opportunity Fund | QUESTIONS & ANSWERS continued


--------------------------------------------------------------------------------
WHAT WERE THE MOST SIGNIFICANT FACTORS AFFECTING THE FUND'S PERFORMANCE?

The Fund's performance benefited from a significant position in
commodity-focused MLPs, particularly coal. We have gradually begun to reduce
some of these positions, taking advantage of recent strong performance. The
Fund's coal MLPs that performed well include Alliance Holdings GP, L.P. (3.7% of
long-term investments) and Alliance Resource Partners, L.P. (0.7% of long-term
investments).

A significant detriment to performance was the Fund's positioning in terms of
market capitalization. We have positioned the Fund with slightly smaller market
capitalization than the Index and most competing funds. As mentioned above, the
largest MLPs performed best over this period, as they are perceived by investors
as being less risky.

Another detractor from performance was the Fund's emphasis on MLPs that are
oriented toward growth. If you examine distribution growth among the five
quintiles of the Index in terms of market capitalization, the smallest MLPs had
the greatest growth in distributions and the largest had the least. Similarly,
the MLPs with the lowest yields, which generally correlate to highest growth,
were the weakest within the Index. Despite strong fundamental performance, in
line with our expectations, the equity securities for these MLPs underperformed.

To summarize, over this period, the Fund's emphasis on smaller capitalization
and higher growth MLPs detracted from performance. We regard this as a temporary
situation that relates to the market's risk aversion, and we believe this
positioning will benefit the Fund's shareholders over the long term.

The largest MLPs in the portfolio in terms of total market capitalization,
Kinder Morgan Energy Partners, L.P. (4.3% of long-term investments) and Kinder
Morgan Management, LLC (4.1% of long-term investments), made significant
contributions to absolute performance; these two related MLPs are largely the
same entity but packaged somewhat differently. However, the Fund is underweight
in these large MLPs relative to the Index, and that detracted from relative
performance. These large MLP entities have tended to perform well when investors
become uncomfortable with risk and there is a flight to quality, as in this
six-month period.

A growth-oriented holding that performed quite well in terms of operations is
DCP Midstream Partners, LP (3.1% of long-term investments), a midstream gas
company. DCP is a good example of the kind of investment we are seeking for the
Fund: we believe it is a solid entity with a sound low-risk business model.
However, it performed poorly on a market price basis due to market conditions
unrelated to its business.


--------------------------------------------------------------------------------
HOW DID THE FUND'S LEVERAGE AFFECT PERFORMANCE DURING THIS PERIOD?

The purpose of leverage (borrowing) is to fund the purchase of additional
securities that provide increased income and potentially greater appreciation to
common shareholders than could be achieved from an unleveraged portfolio. Of
course, leverage results in greater NAV volatility and entails more downside
risk than an unleveraged portfolio.

During the six months ended May 31, 2008, the Fund's leverage represented
between 29.4% and 32.7% of managed assets, defined as net assets plus leverage.
At the end of the period, leverage was approximately 30% of managed assets.
Since leverage adds to performance only when the cost of leverage is less than
the return generated by investments, the use of leverage detracted from
performance during this period. However, a positive factor for performance
relative to competing funds was that the Fund's leverage as a percentage of
managed assets was somewhat lower than most of the funds that we consider to be
the Fund's peer group. Also, we were fortunate to have our leverage in the
commercial paper conduit market, rather than through the issuance of Auction
Market Preferred Shares ("AMPS"), a form of leverage used by many closed-end
funds. The broad auction-rate preferred securities market has experienced
considerable disruption in the past few months, including many failed auctions
and increased cost of leverage in some cases. Because of the nature of
instruments used for leverage, the Fund's cost of leverage was therefore
significantly less than many other funds. Furthermore, we were able to execute
swaps against approximately two-thirds of our leverage at very attractive
levels, locking in a low cost of leverage for several years. Over the long term,
we believe that leverage will contribute to the Fund's performance, as it has in
past periods.

                                            SemiAnnual Report | May 31, 2008 | 7



FMO |  Fiduciary/Claymore MLP Opportunity Fund | QUESTIONS & ANSWERS continued


--------------------------------------------------------------------------------

WHAT IS YOUR CURRENT OUTLOOK FOR THE MLP MARKET?

We believe that the recent weakness in market prices of MLPs has very little to
do with fundamentals. In fact, the MLP market looks robust now, with solid
infrastructure spending and sound fundamentals. At current prices, we believe
that many MLPs are priced well below their intrinsic value, and we are taking
advantage of opportunities to make some investments at attractive prices. As we
seek new investments, we remain focused on smaller, faster growing MLPs that
have healthy balance sheets, high-quality assets and strong management teams.

We believe that MLPs offer a combination of current yield and growth potential
that provides greater stability, higher income and better long-term potential
than other income-oriented investments such as bonds, utility stocks or real
estate investment trusts. MLPs also have a reasonable level of growth potential
and tax deferral features. We believe that the correlation to other asset
classes will remain low over the next few years as the credit markets settle
into more normalized patterns and the acquisition market re-accelerates.

8 | SemiAnnual Report | May 31, 2008



FMO |  Fiduciary/Claymore MLP Opportunity Fund | QUESTIONS & ANSWERS continued


--------------------------------------------------------------------------------
RISKS AND OTHER CONSIDERATIONS

The views expressed in this report reflect those of the portfolio manager and
Claymore only through the report period as stated on the cover. These views are
subject to change at any time, based on market and other conditions and should
not be construed as a recommendation of any kind. The material may also include
forward looking statements that involve risk and uncertainty, and there is no
guarantee that any predictions will come to pass. There can be no assurance that
the Fund will achieve its investment objectives. The value of the Fund will
fluctuate with the value of the underlying securities. Historically, closed-end
funds often trade at a discount to their net asset value.

RISKS OF INVESTING IN MLP UNITS. An investment in MLP units involves risks that
differ from a similar investment in equity securities, such as common stock, of
a corporation. Holders of MLP units have the rights typically afforded to
limited partners in a limited partnership. As compared to common shareholders of
a corporation, holders of MLP units have more limited control and limited rights
to vote on matters affecting the partnership. There are certain tax risks
associated with an investment in MLP units. Additionally, conflicts of interest
may exist between common unit holders, subordinated unit holders and the general
partner of an MLP; for example a conflict may arise as a result of incentive
distribution payments.

TAX RISKS OF INVESTING IN EQUITY SECURITIES OF MLPS. There are certain tax risks
associated with an investment in MLP units. Much of the benefit the Fund derives
from its investment in equity securities of MLPs is a result of MLPs generally
being treated as partnerships for U.S. federal income tax purposes. A change in
current tax law, or a change in the business of a given MLP, could result in an
MLP being treated as a corporation for U.S. federal income tax purposes, which
would result in such MLP being required to pay U.S. federal income tax on its
taxable income. The classification of an MLP as a corporation for U.S. federal
income taxation purposes would have the effect of reducing the amount of cash
available for distribution by the MLP and causing any such distributions
received by the Fund to be taxed as dividend income. Thus, if any of the MLPs
owned by the Fund were treated as corporations for U.S. federal income tax
purposes, the after-tax return to the Fund with respect to its investment in
such MLPs would be materially reduced, which could cause a substantial decline
in the value of the common shares.

Because of the Fund's concentration in MLPs, the Fund is not eligible to be
treated as a "regulated investment company" under the Internal Revenue Code of
1986, as amended. Instead, the Fund will be treated as a regular corporation for
US federal income tax purposes and as a result, unlike most investment
companies, will be subject to corporate income tax to the extent the Fund
recognizes taxable income. The Fund believes that as a result of the tax
characterization of cash distributions made by MLPs, a significant portion of
the Fund's income will be tax-deferred, which will allow distributions by the
Fund to its shareholders to include high levels of tax-deferred income. However,
there can be no assurance in this regard. If this expectation is not realized,
the Fund will have a larger corporate income tax expense than expected, which
will result in less cash available to distribute to shareholders.

EQUITY SECURITIES RISK. Equity risk is the risk that MLP units or other equity
securities held by the Fund will fall due to general market or economic
conditions, perceptions regarding the industries in which the issuers of
securities held by the Fund participate, changes in interest rates, and the
particular circumstances and performance of particular companies whose
securities the Fund holds. In addition, MLP units or other equity securities
held by the Fund may decline in price if the issuer fails to make anticipated
distributions or dividend payments because, among other reasons, the issuer
experiences a decline in its financial condition.

CONCENTRATION RISK. Because the Fund will invest in MLP entities, a substantial
portion of which are expected to be engaged primarily in the energy, natural
resources and real estate sectors of the economy, such concentration may present
more risks than if the Fund were broadly diversified over numerous industries
and sectors of the economy

RISKS ASSOCIATED WITH OPTIONS ON SECURITIES. There are several risks associated
with transactions in options on securities. A decision as to whether, when and
how to use options involves the exercise of skill and judgment, and even a
well-conceived transaction may be unsuccessful to some degree because of market
behavior or unexpected events. As the writer of a covered call option, the Fund
forgoes, during the option's life, the opportunity to profit from increases in
the market value of the security covering the call option above the sum of the
premium and the strike price of the call, but has retained the risk of loss
should the price of the underlying security decline. The writer of an option has
no control over the time when it may be required to fulfill its obligation as a
writer of the option.

CASH FLOW RISK. The Fund expects that a substantial portion of the cash flow it
receives will be derived from its investments in equity securities of MLP
entities. The amount and tax characterization of cash available for distribution
by an MLP entity depends upon the amount of cash generated by such entity's
operations. Cash available for distribution by MLP entities will vary widely
from quarter to quarter and is affected by various factors affecting the
entity's operations. In addition to the risks described herein, operating costs,
capital expenditures, acquisition costs, construction costs, exploration costs
and borrowing costs may reduce the amount of cash that an MLP entity has
available for distribution in a given period.

SMALL CAPITALIZATION RISK. The Fund may invest in securities of MLP entities and
other issuers that have comparatively smaller capitalizations relative to
issuers whose securities are included in major benchmark indices, which present
unique investment risks.

LOWER GRADE SECURITIES RISK. The Fund may invest in fixed-income securities
rated below investment grade, which are commonly referred to as "junk bonds."
Investment in securities of below-investment grade quality involves substantial
risk of loss.

FOREIGN SECURITIES. Investing in securities of foreign companies (or foreign
governments) may involve certain risks not typically associated with investing
in domestic companies. The prices of foreign securities may be affected by
factors not present with securities traded in the U.S. markets, including,
political and economic conditions, less stringent regulation and higher
volatility.

NON-DIVERSIFIED STATUS. The Fund may invest a greater portion of its assets in a
more limited number of issuers than a diversified fund.

In addition to the risks described above, the Fund is also subject to:
Affiliated Party Risk, Energy Sector Risks, Other Sector Risks, Restricted
Securities Risks, Cash Flow Risk, Liquidity Risk, Valuation Risk, Interest Rate
Risk, Portfolio Turnover Risk, Derivatives Risk, Market Discount Risk, Other
Investment Companies Risk, Royalty Trust Risk, Financial Leverage, Management
Risk, and Current Developments. Please see www.fiduciaryclaymore.com for a more
detailed discussion about Fund risks and considerations.



                                            SemiAnnual Report | May 31, 2008 | 9



FMO | Fiduciary/Claymore MLP Opportunity Fund

Fund SUMMARY | As of May 31, 2008 (unaudited)

FUND STATISTICS
-------------------------------------------------------
Share Price                                     $22.70
Common Share Net Asset Value                    $21.90
Premium/(Discount) to NAV                         3.65%
Net Assets ($000)                             $398,228
-------------------------------------------------------

TOTAL RETURNS
-------------------------------------------------------
(INCEPTION 12/28/04)          MARKET                NAV
-------------------------------------------------------
Six Months                     3.53%             -2.07%
One Year                      -3.30%            -11.39%
Three Year (annualized)       12.27%              9.82%
Since Inception (annualized)  10.04%             10.11%
-------------------------------------------------------

                                         % OF LONG-TERM
SECTOR BREAKDOWN                            INVESTMENTS
-------------------------------------------------------
Midstream Gas Infrastructure                      42.3%
Midstream Oil Infrastructure                      37.2%
Oil and Gas Production                             7.8%
Coal                                               7.3%
Propane                                            4.7%
Consumer Discretionary                             0.5%
Marine Transportation                              0.2%
-------------------------------------------------------

                                         % OF LONG-TERM
TOP TEN ISSUERS                             INVESTMENTS
-------------------------------------------------------
Energy Transfer Partners                          11.1%
Copano Energy                                     10.6%
Plains All American Pipeline                       9.0%
Kinder Morgan                                      8.4%
Magellan Midstream Partners                        7.9%
Enbridge Energy                                    5.4%
Crosstex Energy                                    4.9%
Inergy                                             4.7%
Alliance                                           4.4%
Holly Energy Partners                              3.2%
-------------------------------------------------------
Past performance does not guarantee future results. All portfolio data is
subject to change daily. For more current information, please visit
www.fiduciaryclaymore.com. The above summaries are provided for informational
purposes only and should not be viewed as recommendations.

SHARE PRICE & NAV PERFORMANCE

12/30/04    20.06            19.07
            20.01            19.07
            20.18            19.07
            20.24            19.27
            20.5             19.42
            19.92            19.6
            19.97            19.75
            19.99            19.86
            20.16            19.72
            20.19            19.84
            19.97            19.81
            19.91            19.9
            19.97            20.02
            19.96            19.85
            20.07            19.88
            19.7             19.43
            19.8             19.61
            20.15            19.64
            19.45            19.08
            19.55            19.6
            19.9             19.52
            19.93            19.63
            19.86            19.62
            19.84            19.53
            19.02            19.59
            19.28            19.7
            19.3             19.74
            19.75            19.97
            19.77            20.05
            19.85            20.3
            19.92            20.28
            19.77            20.38
            19.92            20.68
            19.91            20.56
            19.96            20.79
            20.51            21.15
            20.52            21.25
            21.27            21.64
            20.92            21.09
            20.1             20.46
            20.1             20.92
            20.71            21.01
            20.77            21.14
            20.56            21.13
            20.41            21.05
            20.14            20.98
            20.23            21.3
            20.45            21.31
            20.15            20.72
            19.3             19.78
            18.35            20.03
            18.62            20.2
            19.03            20.55
            19.6             20.48
            18.98            20.15
            18.8             19.93
            18.35            19.91
            17.99            19.78
            17.81            19.76
            17.79            19.89
            17.75            19.9
            17.65            19.58
            17.25            19.55
            17.29            19.63
            18.72            20.01
            18.65            19.81
            18.69            20.09
            18.59            20.15
            19.09            20.33
            19.18            20.29
            18.75            20.06
            19.15            20.13
            19               20.23
            18.8             20.15
            18.77            20.16
            18.58            19.99
            18.88            20.39
            18.6             20.31
            18.41            20.42
            18.6             20.46
            18.94            20.36
            18.49            19.91
            18.39            20.16
            18.33            20.39
            18.38            20.41
            18.44            20.71
            18.53            20.72
            18.21            20.31
            18.15            20.13
            18.31            20.66
            18.5             20.71
            18.31            20.46
            18               20.22
            18.25            20.34
            18.22            20.42
            18.17            20.48
            18.48            20.53
            18.24            20.16
            18.3             20.28
            18.53            20.52
            18.9             20.69
            19.3             21.02
            19.02            20.87
            19.28            20.94
            19.51            21.08
            19.41            21.19
            19.27            20.95
            19.48            20.86
            19.25            20.72
            19.05            20.91
            19.4             20.96
            19.47            20.98
            19.33            20.78
            19.53            21.3
            19.75            21.6
            19.81            21.66
            20.02            21.64
            20.31            22.04
            20.08            22.21
            22.09            22.39
            21.87            22.49
            22.91            22.63
            22.76            22.73
            22.12            22.52
            22.79            22.7
            22.7             22.65
            22.41            22.5
            21.95            22.15
            21.97            22.37
            21.69            22.84
            23.05            23.31
            23.45            23.39
            22.58            23.67
            23.3             23.7
            23.81            23.87
            23.46            23.89
            23.3             24.04
            23.4             24.05
            23.62            24.38
            24.53            24.81
            23.9             24.98
            24.33            24.95
            24.91            25.31
            24.5             25.08
            24.83            25.5
            24.79            26.16
            24.92            26.07
            25.31            25.96
            25.4             26.53
            24.75            26.18
            24.19            25.74
            25               26.27
            24.5             25.91
            24.75            25.99
            24.86            26.29
            24.73            26.32
            24.36            26.48
            24.9             26.77
            25.41            26.77
            24.78            26.95
            23.48            26.2
            23.46            25.9
            22               24.87
            22.41            23.83
            20.35            23
            22.43            24.13
            22.4             23.87
            23.06            24.03
            23.5             24.14
            22.51            23.51
            22.64            23.93
            22.7             23.08
            22.86            23.12
            22.1             22.84
            23.25            23.56
            22.8             23.6
            22.43            23.6
            23.84            24.04
            23.74            23.95
            23.6             23.3
            22.9             22.92
            20.85            22.43
            22.68            22.75
            22.66            23.11
            22.44            22.58
            21.3             22.44
            20.59            22.14
            20.18            23.17
            20.88            23.11
            22.37            23.17
            22.42            22.86
            22.11            21.99
            20.26            21.6
            21.99            22.1
            21.59            22.03
            21.17            21.97
            21.36            21.77
            22.19            22.19
            22.09            21.99
            21.8             21.57
            20.73            20.8
            20.6             19.83
            20.9             20.54
            20.96            20.57
            22.04            21.04
            21.89            21.13
            22.2             21.33
            21.23            21.18
            21.34            21.36
            21.57            21.6
            22.1             21.54
            22.21            21.96
            22.42            21.9
            22.27            21.88
            22.52            21.73
5/30/08     22.7             21.9

Share Price          NAV


DISTRIBUTIONS TO SHAREHOLDERS

Apr 05         0.3125
Jul 05         0.3125
Oct 05         0.3125
Jan 06         0.3125
Apr 06         0.3125
Jul 06         0.3125
Oct 06         0.3125
Jan 07         0.3275
Apr 07         0.3325
Jul 07         0.35
Oct 07         0.355
Jan 08         0.36
Apr 08         0.365

10 | SemiAnnual Report | May 31, 2008



FMO | Fiduciary/Claymore MLP Opportunity Fund

Portfolio of INVESTMENTS | MAY 31, 2008 (UNAUDITED)

NUMBER
OF SHARES                                                  VALUE
------------------------------------------------------------------
           MASTER LIMITED PARTNERSHIPS AND MLP AFFILIATES - 160.4%
           COAL - 11.7%
  848,700  Alliance Holdings GP, L.P.                  $23,636,295
  101,790  Alliance Resource Partners, L.P.              4,657,910
1,145,621  Clearwater Natural Resources, L.P.
           (Acquired 08/01/05 and 10/02/06,
           Cost $22,912,423) (a) (b) (c)                11,456,210
      123  Clearwater GP Holding Co.
           (Acquired 02/29/08, Cost $187,828)
           (a) (b) (c)                                     154,000
  170,600  Natural Resource Partners, L.P.               6,713,110
------------------------------------------------------------------
                                                        46,617,525
------------------------------------------------------------------
           CONSUMER DISCRETIONARY - 0.8%
  183,105  StoneMor Partners, L.P.                      3,259,269
------------------------------------------------------------------
           MARINE TRANSPORTATION - 0.4%
   36,000  Teekay LNG Partners, L.P.
           (Marshall Islands)                            1,053,000
   15,603  Teekay Offshore Partners, L.P.
           (Marshall Islands)                              358,869
------------------------------------------------------------------
                                                         1,411,869
------------------------------------------------------------------
           MIDSTREAM GAS INFRASTRUCTURE - 67.8%
   98,900  Atlas Pipeline Partners, L.P.                 4,066,768
1,692,804  Copano Energy, L.L.C.                        62,379,827
  190,000  Copano Energy, L.L.C., Unregistered Series
           D Units (Acquired 03/14/08, Cost
           $4,987,500) (a) (b) (c)                       5,669,794
  656,637  Crosstex Energy, L.P.                        20,152,190
  387,534  Crosstex Energy, L.P., Senior Subordinated
           Series D Units (Acquired 03/23/07,
            Cost $10,050,005) (a) (b) (c)               10,877,746
  635,480  DCP Midstream Partners, L.P.                 19,750,718
  515,300  El Paso Pipeline Partners L.P.               11,805,523
1,460,580  Energy Transfer Partners, L.P.               70,619,043
  544,280  Enterprise Products Partners L.P.            16,475,356
  255,700  Hiland Partners, L.P.                        12,782,443
  226,194  Markwest Energy Partners, L.P.                8,156,556
  206,918  Targa Resources Partners L.P.                 5,489,535
  200,000  Western Gas Partners L.P. (c)                 3,350,000
  426,400  Williams Partners, L.P.                      15,218,216
  175,000  Williams Pipeline Partners, L.P.              3,220,000
------------------------------------------------------------------
                                                       270,013,715
------------------------------------------------------------------


NUMBER
OF SHARES                                                  VALUE
------------------------------------------------------------------
           MIDSTREAM OIL INFRASTRUCTURE - 59.7%
  683,245  Enbridge Energy Partners, L.P.             $ 34,367,223
  463,730  Genesis Energy, L.P.                          9,780,066
  250,000  Global Partners, L.P.                         4,717,500
  457,600  Holly Energy Partners, L.P. (d)              20,752,160
  467,450  Kinder Morgan Energy Partners, L.P.          27,191,566
  476,903  Kinder Morgan Management, L.L.C. (e)         26,301,200
1,306,086  Magellan Midstream Partners, L.P.            50,597,772
  266,600  NuStar GP Holdings, L.L.C.                    6,627,676
1,176,651  Plains All American Pipeline, L.P.           57,491,168
------------------------------------------------------------------
                                                       237,826,331
------------------------------------------------------------------
           OIL AND GAS PRODUCTION - 12.4%
  571,150  Abraxas Petroleum Corp. (c)                   2,541,617
  525,211  Abraxas Energy Partners, L.P. (Acquired
           05/25/07, Cost $8,066,191) (a) (b)            8,750,015
  778,888  BreitBurn Energy Partners L.P.
           (Acquired 11/01/07, Cost $20,640,532)
           (a) (b)                                      16,606,054
  302,595  EV Energy Partner, L.P.                       9,456,094
  498,465  Linn Energy L.L.C.                           11,300,202
   30,000  Pioneer Southwest Energy Partners L.P. (c)      581,400
------------------------------------------------------------------
                                                        49,235,382
------------------------------------------------------------------
           PROPANE - 7.6%
  522,900  Inergy Holdings, L.P.                        20,785,275
  338,900  Inergy, L.P.                                  9,526,479
------------------------------------------------------------------
                                                        30,311,754
------------------------------------------------------------------
           TOTAL MASTER LIMITED PARTNERSHIPS AND
           MLP AFFILIATES (Cost $439,712,110)          638,675,845
------------------------------------------------------------------
           INCENTIVE DISTRIBUTION RIGHTS - 0.0%
       43  Clearwater Natural Resources, L.P.
           (Acquired 08/01/05, Cost $0) (a) (b) (c)              -
------------------------------------------------------------------
           WARRANTS - 0.1%
  114,230  Abraxas Petroleum Corp. (Acquired 5/25/07,
           Cost $0) (a) (b) (c)                            295,033
------------------------------------------------------------------


See notes to financial statements.

                                           SemiAnnual Report | May 31, 2008 | 11



FMO | Fiduciary/Claymore MLP Opportunity Fund | PORTFOLIO OF INVESTMENTS
(unaudited) continued

NUMBER
OF SHARES                                                  VALUE
------------------------------------------------------------------

           SHORT TERM INVESTMENTS - 4.3%
           MONEY MARKET FUND - 4.3%
17,329,055 Dreyfus Treasury & Agency Cash Management
           - Investor Shares (Cost $17,329,055)        $17,329,055
------------------------------------------------------------------
           TOTAL INVESTMENTS - 164.8%
           (Cost $457,041,165)                         656,299,933
           Borrowings Outstanding - (43.9% of Net
           Assets or 26.7% of Total Investments)      (175,000,000)
           Liabilities in Excess of Other Assets -
           (20.9%)                                     (83,071,976)
------------------------------------------------------------------
           Net Assets - 100.0%                        $398,227,957
------------------------------------------------------------------


L.L.C. Limited Liability Company

L.P.   Limited Partnership

MLP    Master Limited Partnership

(a)  Security is restricted and may be resold only in transactions exempt from
     registration, normally to qualified institutional buyers. At May 31, 2008,
     restricted securities aggregate market value amounted to $53,808,852 or
     13.5% of net assets.

(b)  Security is valued in accordance with Fair Valuation procedures established
     in good faith by the Board of Trustees. The total market value of such
     securities is $53,808,852 which represents 13.5% of net assets.

(c)  Non-income producing security.

(d)  Affiliated company. See Note 5 in the Notes to Financial Statements.

(e)  While non-income producing, security makes regular in-kind distributions.

See notes to financial statements.

12 | SemiAnnual Report | May 31, 2008



FMO | Fiduciary/Claymore MLP Opportunity Fund

Statement of ASSETS AND LIABILITIES | MAY 31, 2008 (UNAUDITED)



                                                                                              
ASSETS
   Unaffiliated investments in securities, at value (cost $442,380,370)                           $635,547,773
   Affiliated investments in securities, at value (cost $14,660,795)                                20,752,160
--------------------------------------------------------------------------------------------------------------
      Total investments in securities, at value (cost $457,041,165)                                656,299,933
   Cash                                                                                                804,782
   Receivable for investments sold                                                                   2,664,587
   Net unrealized appreciation on interest rate swaps                                                2,078,516
   Interest receivable                                                                                   7,614
   Other assets                                                                                        284,699
--------------------------------------------------------------------------------------------------------------
      Total assets                                                                                 662,140,131
--------------------------------------------------------------------------------------------------------------
LIABILITIES
   Borrowings                                                                                      175,000,000
   Net deferred tax liability                                                                       85,889,775
   Current tax liability                                                                               781,236
   Payable for investments purchased                                                                   855,938
   Interest due on borrowings                                                                          640,162
   Advisory fee payable                                                                                484,533
   Administration fee payable                                                                           10,656
   Accrued expenses and other liabilities                                                              249,874
--------------------------------------------------------------------------------------------------------------
      Total liabilities                                                                            263,912,174
--------------------------------------------------------------------------------------------------------------
NET ASSETS                                                                                        $398,227,957
==============================================================================================================
COMPOSITION OF NET ASSETS
Common stock, $.01 par value per share;  unlimited number of shares authorized, 18,187,651
  shares issued and outstanding                                                                   $    181,877
Additional paid-in capital                                                                         269,551,043
Net unrealized appreciation on investments and swaps, net of deferred tax                          119,575,857
Accumulated net realized gain on investments, net of deferred tax                                   25,672,394
Accumulated net investment loss, net of deferred tax                                               (16,753,214)
-------------------------------------------------------------------------------------------------------------
NET ASSETS                                                                                        $398,227,957
==============================================================================================================
NET ASSET VALUE
   (based on 18,187,651 common shares outstanding)                                                $      21.90
==============================================================================================================



See notes to financial statements.

                                           SemiAnnual Report | May 31, 2008 | l3



FMO | Fiduciary/Claymore MLP Opportunity Fund

Statement of OPERATIONS | FOR THE SIX MONTHS ENDED MAY 31, 2008 (UNAUDITED)



                                                                                               
INVESTMENT INCOME
   Distributions from unaffiliated master limited partnerships
      (net of return of capital distributions received of $19,118,065)          $  1,785,939
   Distributions from affiliated master limited partnerships
      (net of return of capital distributions received of $752,818)                        -
   Interest                                                                           59,002
--------------------------------------------------------------------------------------------------------------
   Total income                                                                                    $ 1,844,941
--------------------------------------------------------------------------------------------------------------
EXPENSES
   Advisory fee                                                                    2,853,410
   Professional fees                                                                 107,922
   Administration fee                                                                 62,801
   Trustees' fees and expenses                                                        61,263
   Custodian fee                                                                      60,090
   Commercial paper issuance costs                                                    59,729
   Fund accounting                                                                    59,364
   Printing expense                                                                   52,144
   Insurance                                                                          13,249
   NYSE listing fee                                                                   10,626
   Miscellaneous                                                                      10,192
   Transfer agent fee                                                                  8,688
   Interest expense on borrowings                                                  3,635,881
--------------------------------------------------------------------------------------------------------------
      Total expenses                                                                                 6,995,359
--------------------------------------------------------------------------------------------------------------
      NET INVESTMENT LOSS BEFORE TAXES                                                              (5,150,418)
--------------------------------------------------------------------------------------------------------------
      Deferred tax benefit                                                                           2,689,343
      Current tax expense                                                                             (721,336)
--------------------------------------------------------------------------------------------------------------
      Net investment loss                                                                           (3,182,411)
--------------------------------------------------------------------------------------------------------------
REALIZED AND UNREALIZED GAIN/(LOSS) ON INVESTMENTS
   Net realized gain/(loss) on unaffiliated investments before taxes                                10,935,376
   Net realized gain/(loss) on affiliated investments before taxes                                   1,355,586
   Net realized gain/(loss) on swaps                                                                   965,111
      Deferred tax expense                                                                          (5,065,229)
--------------------------------------------------------------------------------------------------------------
      Net realized gain on investments                                                               8,190,844
--------------------------------------------------------------------------------------------------------------
   Net change in unrealized appreciation / (depreciation)
      on investments before taxes                                                                  (24,538,120)
   Net change in unrealized appreciation / (depreciation) on swaps before taxes                      2,078,516
      Deferred tax benefit                                                                           8,581,956
--------------------------------------------------------------------------------------------------------------
      Net unrealized depreciation on investments and swaps                                         (13,877,648)
--------------------------------------------------------------------------------------------------------------
   Net realized and unrealized loss on investments and swaps                                        (5,686,804)
--------------------------------------------------------------------------------------------------------------
NET DECREASE IN NET ASSETS RESULTING FROM OPERATIONS                                               $(8,869,215)
--------------------------------------------------------------------------------------------------------------



See notes to financial statements.

14 | SemiAnnual Report | May 31, 2008



FMO | Fiduciary/Claymore MLP Opportunity Fund

Statements of CHANGES IN NET ASSETS |



                                                                                                
                                                                                     FOR THE
                                                                            SIX MONTHS ENDED            FOR THE
                                                                                MAY 31, 2008         YEAR ENDED
                                                                                 (UNAUDITED)  NOVEMBER 30, 2007
===============================================================================================================
INCREASE/(DECREASE) IN NET ASSETS FROM OPERATIONS
   Net investment loss                                                          $ (3,182,411)       $(7,169,757)
   Net realized gain on investments                                                8,190,844          9,089,770
   Net change in unrealized appreciation / (depreciation) on investments         (13,877,648)        34,030,992
---------------------------------------------------------------------------------------------------------------
      Net increase / (decrease) in net assets resulting from operations           (8,869,215)        35,951,005
---------------------------------------------------------------------------------------------------------------
DISTRIBUTIONS TO COMMON SHAREHOLDERS FROM
   Return of capital                                                             (13,141,134)       (24,701,113)
---------------------------------------------------------------------------------------------------------------
CAPITAL SHARE TRANSACTIONS
   Reinvestment of dividends                                                       1,800,035            893,428
---------------------------------------------------------------------------------------------------------------
      Net increase from capital share transactions                                 1,800,035            893,428
---------------------------------------------------------------------------------------------------------------
      Total increase / (decrease) in net assets                                  (20,210,314)        12,143,320

Net Assets
   Beginning of period                                                           418,438,271        406,294,951
---------------------------------------------------------------------------------------------------------------
   End of period (including accumulated net investment losses of
   $16,753,214 and $13,570,802, respectively, net of deferred tax)              $398,227,957       $418,438,271
==============================================================================================================



See notes to financial statements.

                                           SemiAnnual Report | May 31, 2008 | l5



FMO | Fiduciary/Claymore MLP Opportunity Fund

Statement of CASH FLOWS | FOR THE SIX MONTHS ENDED MAY 31, 2008 (UNAUDITED)



                                                                                                     
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net decrease in net assets resulting from operations                                            $ (8,869,215)
---------------------------------------------------------------------------------------------------------------
ADJUSTMENTS TO RECONCILE NET DECREASE IN NET ASSETS RESULTING FROM OPERATIONS TO
NET CASH PROVIDED BY OPERATING AND INVESTING ACTIVITIES:
   Net change in unrealized appreciation on investments and swaps                                    22,459,604
   Net accretion of bond discount and amortization of bond premium before taxes                         (40,546)
   Net realized gain on investments before taxes                                                    (12,290,962)
   Purchases of long-term investments                                                               (39,066,044)
   Proceeds from sale of long-term investments                                                       51,990,920
   Net purchases of short-term investments                                                          (13,189,352)
   Increase in receivable for investments sold                                                       (2,664,587)
   Increase in interest receivable                                                                       (7,614)
   Decrease in other assets                                                                              40,396
   Decrease in deferred tax liability                                                                (6,230,170)
   Increase in current tax liability                                                                    255,436
   Decrease in interest due on borrowings                                                              (319,501)
   Decrease in advisory fee payable                                                                      (2,934)
   Increase in payable for investments purchased                                                        855,938
   Increase in administration fee payable                                                                    57
   Increase in accrued expenses and other liabilities                                                    42,781
   Return of capital distributions received from investee companies                                  19,870,883
   Adjustment to prior year estimated return of capital distributions received
    from investee companies                                                                          (1,073,426)
---------------------------------------------------------------------------------------------------------------
      Net Cash Provided by Operating Activities                                                    $ 11,761,664
---------------------------------------------------------------------------------------------------------------
CASH FLOWS FROM FINANCING ACTIVITIES:
   Return of capital distributions                                                                  (11,341,099)
---------------------------------------------------------------------------------------------------------------
      Net Cash Used by Financing Activities                                                         (11,341,099)
---------------------------------------------------------------------------------------------------------------
   Net increase in cash                                                                                 420,565

CASH AT BEGINNING OF PERIOD                                                                             384,217
---------------------------------------------------------------------------------------------------------------
CASH AT END OF PERIOD                                                                              $    804,782
===============================================================================================================
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION: CASH PAID DURING THE PERIOD FOR INTEREST         $  3,955,382
===============================================================================================================
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION: IN KIND STOCK DIVIDENDS RECEIVED DURING
 THE PERIOD                                                                                        $    870,011
===============================================================================================================
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION: TAXES PAID DURING THE PERIOD                     $    490,000
===============================================================================================================



See notes to financial statements.

16 | SemiAnnual Report | May 31, 2008



FMO |  Fiduciary/Claymore MLP Opportunity Fund

Financial HIGHLIGHTS |


                                                                                                          
                                                            FOR THE                                             FOR THE PERIOD
                                                   SIX MONTHS ENDED            FOR THE            FOR THE   DECEMBER 28, 2004*
PER SHARE OPERATING PERFORMANCE                        MAY 31, 2008         YEAR ENDED         YEAR ENDED              THROUGH
FOR A SHARE OUTSTANDING THROUGHOUT THE PERIOD           (UNAUDITED)  NOVEMBER 30, 2007  NOVEMBER 30, 2006    NOVEMBER 30, 2005
------------------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF PERIOD                       $  23.11         $    22.49          $   19.78            $   19.10(b)
------------------------------------------------------------------------------------------------------------------------------------
INCOME FROM INVESTMENT OPERATIONS
   Net investment loss (a)                                    (0.28)             (0.67)             (0.33)               (0.26)
   Net realized and unrealized gain/loss on investments       (0.21)              2.66               4.29                 1.92
------------------------------------------------------------------------------------------------------------------------------------
      Total from investment operations                        (0.49)              1.99               3.96                 1.66
------------------------------------------------------------------------------------------------------------------------------------
COMMON SHARES' OFFERING EXPENSES CHARGED TO PAID-IN CAPITAL       -                  -                  -                (0.04)
------------------------------------------------------------------------------------------------------------------------------------
DISTRIBUTIONS TO COMMON SHAREHOLDERS
   Return of capital                                          (0.72)             (1.37)             (1.25)               (0.94)
------------------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, END OF PERIOD                             $  21.90          $   23.11          $   22.49            $   19.78
------------------------------------------------------------------------------------------------------------------------------------
MARKET VALUE, END OF PERIOD                                $  22.70          $   22.66          $   21.87            $   17.99
------------------------------------------------------------------------------------------------------------------------------------
TOTAL INVESTMENT RETURN (C)
   Net asset value                                            -2.07%              8.53%             20.70%                8.38%
   Market value                                                3.53%              9.70%             29.68%               -5.81%
RATIOS AND SUPPLEMENTAL DATA
Net assets, end of period (thousands)                      $398,228          $ 418,438          $ 406,295            $ 357,441
Ratios to Average Net Assets applicable to Common Shares: (d)
   Total expenses, excluding interest expense and deferred
     tax expense/benefit                                       1.70%              1.62%              1.69%                1.48%
   Total expenses, including interest expense and deferred
     tax expense/benefit                                       0.77%              9.40%             16.89%                8.41%
   Interest expense                                            1.84%              2.13%              2.17%                1.02%
   Current and deferred tax expense/(benefit)                 (2.77)%             5.65%             13.03%                5.91%
   Net investment income/(loss), including interest expense
    and deferred  tax expense/benefit                          0.17%             (8.40)%           (14.66)%              (7.30)%
   Net investment income/(loss), excluding interest expense
    and deferred tax expense/benefit                          (0.76)%            (0.62)%             0.55%               (0.37)%
Ratios to Average Managed Assets: (d)(e)
   Total expenses, excluding interest expense and deferred
    tax expense/benefit                                        1.18%              1.18%              1.20%                1.19%
   Total expenses, including interest expense and deferred
    tax expense/benefit                                        0.53%              6.86%             12.03%                6.77%
   Interest expense                                            1.27%              1.56%              1.55%                0.82%
   Current and deferred tax expense/(benefit)                 (1.92)%             4.12%              9.28%                4.76%
   Net investment income/(loss), including interest expense
    and deferred tax expense/benefit                           0.12%             (6.13)%           (10.44)%              (5.88)%
   Net investment income/(loss), excluding interest expense
    and deferred tax expense/benefit                          (0.53)%            (0.45)%             0.39%               (0.30)%
Portfolio Turnover Rate                                           6%                11%                21%                  41%
Senior Indebtedness
   Total borrowings outstanding (in thousands)             $175,000          $ 175,000          $ 150,000            $ 150,000
   Asset coverage per $1,000 of indebtedness(f)            $  3,276          $   3,391          $   3,709            $   3,383



*    Commencement of investment operations.

(a)  Based on average shares outstanding during the period.

(b)  Before deduction of offering expenses charged to capital.

(c)  Total investment return is calculated assuming a purchase of a common share
     at the beginning of the period and a sale on the last day of the period
     reported either at net asset value ("NAV") or market price per share.
     Dividends and distributions are assumed to be reinvested at NAV for NAV
     returns or the prices obtained under the Fund's Dividend Reinvestment Plan
     for market value returns. Total investment return does not reflect
     brokerage commissions. A return calculated for a period of less than one
     year is not annualized.

(d)  Annualized.

(e)  Managed assets are equal to net assets plus outstanding leverage.

(f)  Calculated by subtracting the Fund's total liabilities (not including the
     borrowings) from the Fund's total assets and dividing by the total
     borrowings.

See notes to financial statements.

                                           SemiAnnual Report | May 31, 2008 | l7



FMO | Fiduciary/Claymore MLP Opportunity Fund

Notes to FINANCIAL STATEMENTS | MAY 31, 2008 (UNAUDITED)


Note 1 - ORGANIZATION:

Fiduciary/Claymore MLP Opportunity Fund (the "Fund") was organized as a Delaware
statutory trust on October 4, 2004. The Fund is registered as a non-diversified,
closed-end management investment company under the Investment Company Act of
1940, as amended.

The Fund's investment objective is to provide a high level of after-tax total
return with an emphasis on current distributions paid to shareholders. The Fund
has been structured to seek to provide an efficient vehicle through which its
shareholders may invest in a portfolio of publicly traded securities of master
limited partnerships ("MLPs") and MLP affiliates. MLPs combine the tax benefits
of limited partnerships with the liquidity of publicly traded securities. The
Fund believes that as a result of the tax characterization of cash distributions
made by MLPs to their investors (such as the Fund) a significant portion of the
Fund's income will be tax-deferred returns of capital, which will allow
distributions by the Fund to its shareholders to include high levels of
tax-deferred income. There can be no assurance that the Fund will achieve its
investment objective.


Note 2 - ACCOUNTING POLICIES:
The preparation of the financial statements in accordance with U.S. generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts and disclosures in the financial
statements. Actual results could differ from these estimates.

The following is a summary of significant accounting policies followed by the
Fund.

(a) VALUATION OF INVESTMENTS
Readily marketable securities listed on an exchange are valued at the last
reported sale price on the primary exchange or in the principal over the counter
("OTC") market on which they are traded. Readily marketable securities traded on
an exchange or OTC for which there are no transactions on a given day are valued
at the mean of the closing bid and asked prices. Securities traded on NASDAQ are
valued at the NASDAQ Official Closing Price. Debt securities are valued by
independent pricing services or dealers using the last available bid price for
such securities or, if such prices are not available, at prices for securities
of comparable maturity, quality and type. For those securities where quotations
or prices are not available, including restricted securities, valuations are
determined in accordance with procedures established in good faith by the Board
of Trustees. These procedures consider factors such as discounts to publicly
traded securities and/or securities with similar yields, quality, type of issue
and duration. Interest rate swaps are valued at closing prices for such
contracts established by the dealer. Short-term securities having a remaining
maturity of sixty days or less are valued at amortized cost, which approximates
market value.

In September, 2006, the Financial Accounting Standards Board ("FASB") issued
Statement of Financial Accounting Standards No. 157, "Fair Valuation
Measurements" ("FAS 157"). This standard clarifies the definition of fair value
for financial reporting, establishes a framework for measuring fair value and
requires additional disclosures about the use of fair value measurements. FAS
157 establishes three different categories for valuations. Level 1 valuations
are those based upon quoted prices in active markets. Level 2 valuations are
those based upon quoted prices in inactive markets or based upon significant
observable inputs (i.e. yield curves; benchmark interest rates; indices). Level
3 valuations are those based upon unobservable inputs (i.e. discounted cash flow
analysis; non-market based methods used to determine fair valuation). Details of
the valuations as of May 31, 2008 were as follows:

DESCRIPTION      SECURITIES      DERIVATIVES               TOTAL
----------------------------------------------------------------
(value in $000s)
Level 1           $ 602,491         $      -           $ 602,491
Level 2              33,154            2,079              35,233
Level 3              20,655                -              20,655
----------------------------------------------------------------
Total              $ 656,300        $  2,079           $ 658,379
----------------------------------------------------------------



                                                                       
LEVEL 3 HOLDINGS                  SECURITIES            DERIVATIVES              TOTAL
--------------------------------------------------------------------------------------
(value in $000s)
Beginning Balance at 11/30/07       $ 20,418              $       -           $ 20,418
Total Realized Gain/Loss                   -                      -                  -
Change in Unrealized Gain/Loss            83                      -                 83
Net Purchases and Sales                  154                      -                154
Net Transfers In/Out                       -                      -                  -
--------------------------------------------------------------------------------------
Ending Balance at 5/31/08           $ 20,655              $       -           $ 20,655
======================================================================================



(b) INVESTMENT TRANSACTIONS AND INVESTMENT INCOME

Investment transactions are accounted for on the trade date. Realized gains and
losses on investments are determined on the identified cost basis. Dividend
income is recorded on the ex-dividend date and interest income is recorded on an
accrual basis. Discounts or premiums on debt securities purchased are accreted
or amortized to interest income over the lives of the respective securities
using the effective interest method.

The Fund records the character of dividends received from MLPs based on
estimates made at the time such distributions are received. These estimates are
based upon a historical review of information available from each MLP and other
industry sources. The Fund's characterization of the estimates may subsequently
be revised based on information received from MLPs after their tax reporting
periods conclude.

For the six months ended May 31, 2008, the Fund estimated approximately 8% of
its distributions from MLPs as investment income and approximately 92% as return
of capital, which is reflected in the Statement of Operations.

Subsequent to November 30, 2007, the Fund reclassified the amount of investment
income and return of capital it recognized based on the 2007 tax reporting
information received from the individual MLPs. This reclassification amounted to
an increase in pre-tax net investment income of approximately $1.1 million ($0.6
million net of deferred tax benefit) and a corresponding decrease in unrealized
appreciation of investments of approximately $1.1 million ($0.6 million net of
deferred tax expense). The reclassification is reflected in the period ended May
31, 2008.

(c) SWAPS

A swap is an agreement to exchange the return generated by one instrument for
the return generated by another instrument. The Fund may enter into swap
agreements to manage its exposure to interest rates and/or credit risk or to
generate income. Interest rate swap agreements involve the exchange by the Fund
with another party of their respective commitments to pay or receive interest.
The swaps are valued daily at current market value and any unrealized gain or
loss is included in the Statement of Assets and Liabilities. Gain or loss is
realized on the



l8 | SemiAnnual Report | May 31, 2008



FMO | Fiduciary/Claymore MLP Opportunity Fund | NOTES TO FINANCIAL STATEMENTS
(unaudited) continued

termination date of the swap and is equal to the difference between the Fund's
basis in the swap and the proceeds of the closing transaction, including any
fees. During the period that the swap agreement is open, the Fund may be subject
to risk from the potential inability of the counterparty to meet the terms of
the agreement. The swaps involve elements of both market and credit risk in
excess of the amounts reflected on the Statement of Assets and Liabilities.

Realized gain (loss) upon termination of swap contracts is recorded on the
Statement of Operations. Fluctuations in the value of swap contracts are
recorded as a component of net change in unrealized appreciation (depreciation)
of swap contracts. Net periodic payments received by the Fund are included as
part of realized gains (losses) and, in the case of accruals for periodic
payments, are included as part of unrealized appreciation (depreciation) on the
Statement of Operations.

(d) DISTRIBUTIONS TO SHAREHOLDERS
The Fund intends to make quarterly distributions to shareholders. Distributions
to shareholders are recorded on the ex-dividend date. Distributions are
determined in accordance with U.S. generally accepted accounting principles
which may differ from their ultimate characterization for federal income tax
purposes. The Fund anticipates that a significant portion of its distributions
will be comprised of return of capital as a result of the tax character of cash
distributions made by MLPs. The Fund is unable to make final determinations as
to the tax character of the distributions to shareholders until after the end of
the calendar year.


Note 3 - INVESTMENT ADVISORY AGREEMENT, SUB-ADVISORY AGREEMENT
         AND OTHER AGREEMENTS:
Pursuant to an Investment Advisory Agreement (the "Advisory Agreement") between
the Fund and Claymore Advisors, LLC (the "Adviser"), the Adviser will furnish
offices, necessary facilities and equipment, oversee the activities of Fiduciary
Asset Management, LLC (the "Sub-Adviser"), provide personnel including certain
officers required for its administrative management and pay the compensation of
all officers and Trustees of the Fund who are its affiliates. As compensation
for these services, the Fund will pay the Adviser an annual fee, payable
monthly, in an amount equal to 1.00% of the Fund's average daily Managed Assets
(net assets plus any assets attributable to financial leverage).

Pursuant to a Sub-Advisory Agreement (the "Sub-Advisory Agreement") between the
Fund, the Adviser and the Sub-Adviser, the Sub-Adviser under the supervision of
the Fund's Board of Trustees and the Adviser, provides a continuous investment
program for the Fund's portfolio; provides investment research and makes and
executes recommendations for the purchase and sale of securities; and provides
certain facilities and personnel, including certain officers required for its
administrative management and pays the compensation of all officers and Trustees
of the Fund who are its affiliates. As compensation for its services, the
Adviser pays the Sub-Adviser a fee, payable monthly, in an annual amount equal
to 0.50% of the Fund's average daily Managed Assets.

Under a separate Fund Administration agreement, the Adviser provides Fund
Administration services to the Fund. As compensation for services performed
under the Administration Agreement, the Adviser receives an administration fee
payable monthly at the annual rate set forth below as a percentage of the
average daily managed assets of the Fund:

MANAGED ASSETS                                              RATE
================================================================
First $200,000,000                                       0.0275%
Next $300,000,000                                        0.0200%
Next $500,000,000                                        0.0150%
Over $1,000,000,000                                      0.0100%
----------------------------------------------------------------

The Bank of New York Mellon ("BNY") acts as the Fund's custodian, accounting
agent and transfer agent. As custodian, BNY is responsible for the custody of
the Fund's assets. As accounting agent, BNY is responsible for maintaining the
books and records of the Fund's securities and cash. As transfer agent, BNY is
responsible for performing transfer agency services for the Fund.


Note 4 - FEDERAL INCOME TAXES:

The Fund will be treated as a regular corporation, or "C" corporation, for U.S.
federal income tax purposes. Accordingly, the Fund generally will be subject to
U.S. federal income tax on its taxable income at the graduated rates applicable
to corporations (currently at a maximum rate of 35%). In addition, as a regular
corporation, the Fund will be subject to various state income taxes by reason of
its investments in MLPs. The Fund may be subject to a 20% alternative minimum
tax to the extent that it exceeds the Fund's regular income tax liability. The
amount to which the Fund is required to pay U.S. corporate income tax or
alternative minimum tax could materially reduce the Fund's cash available to
make distributions on Common Shares.

Information on the tax components of investments as of May 31, 2008 is as
follows:

     COST OF                                         NET TAX         NET TAX
 INVESTMENTS    GROSS TAX       GROSS TAX         UNREALIZED      UNREALIZED
     FOR TAX   UNREALIZED      UNREALIZED       APPRECIATION    APPRECIATION
    PURPOSES APPRECIATION    DEPRECIATION     ON INVESTMENTS  ON DERIVATIVES
============================================================================
$413,830,954 $257,759,297   $(15,290,318)       $242,468,979      $2,078,516

Deferred income taxes reflect the net tax effect of temporary differences
between the carrying amount of assets and liabilities for financial reporting
purposes and the amounts used for tax purposes. The Fund will accrue deferred
income taxes for its future tax liability associated with that portion of MLP
distributions considered to be a tax-deferred return of capital as well as
capital appreciation of its investments. For purposes of estimating deferred tax
liability for financial statement reporting and determining its net asset value,
the Fund will be required to rely, to some extent, on information provided by
MLPs in which it invests. Such information may not be received in a timely
manner. Accordingly, the Fund will, from time to time, modify its estimates or
assumptions regarding its deferred tax liability as new information becomes
available. Upon the sale of an equity security in an MLP, the Fund generally
will be liable for any previously deferred taxes. The Fund's income tax
provision consists of the following:

Current taxes                                                       $    721,336
Deferred federal income taxes benefit                                (5,275,885)
Deferred state income taxes benefit                                    (930,185)
--------------------------------------------------------------------------------
Total current and deferred tax expense (benefit)                    $(5,484,734)
--------------------------------------------------------------------------------

Total income tax expense differs from the amount computed by applying the
federal statutory income tax rate of 35% to net investment income and realized
and unrealized gains before taxes as follows:

                                                                            RATE
================================================================================
Application of statutory income tax rate benefit         $ 5,090,382      35.00%
State income tax benefit                                     830,052       5.71%
Foreign income tax expense                                  (435,700)    (3.00)%
--------------------------------------------------------------------------------
Total tax benefit                                        $ 5,484,734      37.71%
--------------------------------------------------------------------------------

                                           SemiAnnual Report | May 31, 2008 | l9



FMO | Fiduciary/Claymore MLP Opportunity Fund | NOTES TO FINANCIAL STATEMENTS
(unaudited) continued

Components of the Fund's deferred tax liability as of May 31, 2008 are as
follows:

DEFERRED TAX ASSETS:
Net operating loss carryforward                            $        14,395,182
Valuation allowance                                                 (2,731,979)
------------------------------------------------------------------------------
Deferred tax asset                                                  11,663,203
------------------------------------------------------------------------------

DEFERRED TAX LIABILITIES:
Unrealized gain on investments                              $       97,552,978
------------------------------------------------------------------------------
Gross deferred tax liability                                        97,552,978
------------------------------------------------------------------------------
Net deferred tax liability                                  $       85,889,775
------------------------------------------------------------------------------

At May 31, 2008, November 30, 2007 and November 30, 2006, the Fund recorded a
valuation allowance against its deferred tax assets in the amount of $391,215,
$1,665,241 and $675,523, respectively. This allowance occurred because it is
unlikely that the Fund will be able to use net operating losses sourced to
states (other than Illinois) because it is not projected that the Fund will have
future taxable income sourced to these states.

At November 30, 2007 and 2006, the Fund had a net operating loss for federal
income tax purposes of $10,333,986 and $16,422,389, respectively. This net
operating loss may be carried forward for 20 years, and would expire November
30, 2027 and 2026, respectively.

On July 13, 2006, the FASB released FASB Interpretation No. 48, "Accounting for
Uncertainty in Income Taxes" ("FIN 48"). FIN 48 provides guidance for how
uncertain tax positions should be recognized, measured, presented and disclosed
in the financial statements. FIN 48 requires the evaluation of tax positions
taken or expected to be taken in the course of preparing the Fund's tax returns
to determine whether the tax positions are "more-likely-than-not" of being
sustained by the applicable tax authority. Tax positions not deemed to meet the
more-likely-than-not threshold would be recorded as a tax benefit or expense in
the current year. Management has evaluated the implications of FIN 48 and has
determined it does not have any impact on the financial statements as of May 31,
2008.

Tax years for 2005, 2006 and 2007 are still subject to examination by major
jurisdictions.


Note 5 - AFFILIATED COMPANIES:
During the period, the Fund owned shares of the following affiliated companies.
Affiliated companies are defined by the 1940 Act, as amended, as those companies
in which a Fund holds 5% or more of the outstanding voting securities.



                                                                      
                                                             RETURN
                                                         OF CAPITAL       MARKET
                                          DIVIDEND    DISTRIBUTIONS        VALUE
NAME                          SHARES        INCOME         RECEIVED      5/31/08          COST
==============================================================================================
Holly Energy Partners, L.P.  457,600             -         $752,818  $20,752,160   $14,660,795



Affiliate transactions during the six months ended May 31, 2008 were:



                                                                              
                                                                                                  RETURN
                                                                                 REALIZED     OF CAPITAL
                              SHARES         GROSS        GROSS     SHARES          GAIN/  DISTRIBUTIONS
NAME                        11/30/07     ADDITIONS   REDUCTIONS    5/31/08         (LOSS)       RECEIVED
========================================================================================================
Holly Energy Partners L.P.   624,150             -     (166,550)   457,600     $1,355,586        $84,722



Note 6 - INVESTMENTS IN SECURITIES:

For the six months ended May 31, 2008, purchases and sales of investments,
excluding short-term securities, were $39,066,044 and $51,990,920, respectively.

The Fund entered into interest rate swap agreements during the six months ended
May 31, 2008. As of May 31, 2008, the Fund had swaps with a total notional value
of $120,000,000 outstanding. Details of the swap agreements outstanding as of
May 31, 2008 were as follows:



                                                                            
                              NOTIONAL                                              UNREALIZED
                 TERMINATION    AMOUNT     FIXED                                 APPRECIATION/
COUNTERPARTY            DATE     (000)      RATE           FLOATING RATE        (DEPRECIATION)
==============================================================================================
Merrill Lynch     01/30/2011   $30,000     3.05%           1-Month LIBOR            $  140,040
Merrill Lynch     01/30/2013   $30,000     3.49%           1-Month LIBOR               449,088
Morgan Stanley    02/07/2011   $30,000     2.92%           1-Month LIBOR               332,762
Morgan Stanley    03/19/2013   $30,000     3.13%           1-Month LIBOR             1,156,626
----------------------------------------------------------------------------------------------
                                                                                    $2,078,516
----------------------------------------------------------------------------------------------



For each swap noted, the Fund is obligated to pay the fixed rate and entitled to
receive the floating rate.


Note 7 - BORROWINGS:

On July 15, 2005, the Fund entered into a commercial paper conduit funding
agreement with a line of credit of $150,000,000. The Fund incurred an issuance
cost of $500,000 associated with the $150,000,000 commercial paper conduit. This
cost is being amortized to expense over a period of five years. A $25,000,000
addition to the line of credit was secured by the Fund and issued on May 24,
2007. Interest on the amount borrowed is based on the prevailing commercial
paper rate plus 0.35%. An unused commitment fee of 0.15% is charged on the
difference between the credit line of $175,000,000 and the amount borrowed. The
commercial paper rate is reset periodically. At May 31, 2008 there was
$175,000,000 outstanding in connection with the Fund's commercial paper conduit.
The average daily amount of borrowings during the six months ended May 31, 2008
was $175,000,000 with a related weighted average interest rate of 4.16%,
inclusive of the 0.35% program fee. The maximum amount outstanding during the
six months ended May 31, 2008, was $175,000,000.


Note 8 - CAPITAL:

COMMON SHARES
The Fund has an unlimited amount of common shares, $0.01 par value, authorized
and 18,187,651 issued and outstanding.

Transactions in common shares were as follows:



                                                                   
                                                SIX MONTHS ENDED          YEAR ENDED
                                                    MAY 31, 2008   NOVEMBER 30, 2007
====================================================================================
Beginning shares                                      18,105,218          18,067,021
Shares issued through dividend reinvestment               82,433              38,197
------------------------------------------------------------------------------------
Ending shares                                         18,187,651          18,105,218
------------------------------------------------------------------------------------



Note 9 - CONCENTRATION OF RISK:

Because the Fund is focused in MLP entities in the energy, natural resources and
real estate sectors of the economy, such concentration may present more risks
than if the Fund were broadly diversified over numerous industries and sectors
of the economy. A downturn in the energy, natural resources or real estate
sectors of the economy could have a larger impact on the Fund than on an
investment company that does not concentrate in such sectors. At times, the
performance of securities of companies in the energy, natural resources and real
estate sectors of the economy may lag the performance of other sectors or the
broader market as a whole.


20 | SemiAnnual Report | May 31, 2008



FMO | Fiduciary/Claymore MLP Opportunity Fund | NOTES TO FINANCIAL STATEMENTS
(unaudited) continued

An investment in MLP units involves risks that differ from a similar investment
in equity securities, such as common stock, of a corporation. Holders of MLP
units have the rights typically afforded to limited partners in a limited
partnership. As compared to common shareholders of a corporation, holders of MLP
units have more limited control and limited rights to vote on matters affecting
the partnership. There are certain tax risks associated with an investment in
MLP units. Additionally, conflicts of interest may exist between common unit
holders, subordinated unit holders and the general partner of an MLP; for
example a conflict may arise as a result of incentive distribution payments.


Note 10 - RESTRICTED SECURITIES:
The Fund may invest up to 40% of its Managed Assets in unregistered or otherwise
restricted securities. Restricted securities are securities that are
unregistered, held by control persons of the issuer or are subject to
contractual restrictions on resale. The Fund will typically acquire restricted
securities in directly negotiated transactions. Restricted securities are fair
valued in accordance with procedures established by the Fund's Board of
Trustees. As of May 31, 2008, the Fund held the following restricted securities:



                                                                                                      
                                                                                  FAIR   VALUE PER SHARE AT
                                      DATE OF                    CURRENT        MARKET     ACQUISITION DATE             5/31/08
SECURITY                          ACQUISITION      SHARES           COST         VALUE    (UNRESTRICTED)***               PRICE
===============================================================================================================================
Abraxas Energy Partners, L.P.         5/25/07     525,211     $8,066,191   $ 8,750,015          $     16.66      $        16.66

Abraxas Petroleum Corp.*              5/25/07     114,230              -   $   295,033                    -      $         2.58

BreitBurn Energy Partners L.P.       11/01/07     778,888    $20,640,532   $16,606,054          $     27.00      $        21.32

Clearwater GP Holding Co.             2/29/08         123    $   187,828   $   154,000          $  1,252.03      $     1,252.03

Clearwater Natural Resources L.P.**   8/01/05          43              -             -                    -                   -

Clearwater Natural Resources L.P.     8/01/05      892,857   $17,857,143   $ 8,928,570                    -      $        10.00

Clearwater Natural Resources L.P.    10/02/06      252,764   $ 5,055,280   $ 2,527,640                    -      $        10.00

Copano Energy, L.L.C.,
Unregistered Series D Units           3/14/08      190,000   $ 4,987,500   $ 5,669,794          $      34.05     $        29.84

 Crosstex Energy, L.P., Senior
Subordinated Series D Units           3/23/07      387,534   $10,050,005   $10,877,746          $      34.65     $        28.07
                                                             -------------------------

Total                                                        $66,844,479   $53,808,852
                                                             =========================



*    Warrants.

**   Incentive Distribution Rights.

***  Valuation of unrestricted common stock on the acquisition date of the
     restricted securities.

Note 11 - ACCOUNTING PRONOUNCEMENTS:
In March 2008, the FASB issued SFAS No. 161, "Disclosures about Derivative
Instruments and Hedging Activities." This standard is intended to enhance
financial statement disclosures for derivative instruments and hedging
activities and enable investors to understand: a) how and why a fund uses
derivative instruments, b) how derivatives instruments and related hedge fund
items are accounted for, and c) how derivative instruments and related hedge
items affect a fund's financial position, results of operations and cash flows.
SFAS No. 161 is effective for financial statements issued for fiscal years and
interim periods beginning after November 15, 2008. As of May 31, 2008,
management does not believe the adoption of SFAS No. 161 will impact the
financial statement amounts; however, additional footnote disclosures may be
required about the use of derivative instruments and hedging items.


Note 12 - INDEMNIFICATIONS:
In the normal course of business, the Fund enters into contracts that contain a
variety of representations, which provide general indemnifications. The Fund's
maximum exposure under these arrangements is unknown, as this would involve
future claims that may be made against the Fund that have not yet occurred.
However, the Fund expects the risk of loss to be remote.


Note 13 - SUBSEQUENT EVENT:
Subsequent to May 31, 2008, the Fund declared a quarterly dividend of $0.37 per
share. This dividend is payable on July 31, 2008 to shareholders of record on
July 15, 2008.

Subsequent to May 31, 2008, management received notice from the Fund's line of
credit provider of their intent to not renew the Fund's line of credit.
Management is evaluating alternative sources of leverage to replace the existing
facility. It is anticipated, however, that the Fund's cost of leverage under any
new facility will increase.



                                           SemiAnnual Report | May 31, 2008 | 2l



FMO | Fiduciary/Claymore MLP Opportunity Fund

Supplemental INFORMATION | (unaudited)


FEDERAL INCOME TAX INFORMATION

In January 2009, shareholders will be advised on IRS Form 1099 DIV or substitute
1099 DIV as to the federal tax status of the distributions received by you in
the calendar year 2008.


TRUSTEES
The Trustees of the Fiduciary/Claymore MLP Opportunity Fund and their principal
occupation during the past five years:



NAME, ADDRESS*, YEAR           TERM OF OFFICE**   PRINCIPAL OCCUPATIONS DURING         NUMBER OF FUNDS IN
OF BIRTH AND POSITION(S)       AND LENGTH OF      THE PAST FIVE YEARS AND              THE FUND COMPLEX***      OTHER DIRECTORSHIPS
HELD WITH REGISTRANT           TIME SERVED        OTHER AFFILIATIONS                   OVERSEEN BY TRUSTEE      HELD BY TRUSTEE
====================================================================================================================================
INDEPENDENT TRUSTEES:
====================================================================================================================================
                                                                                                    
Randall C. Barnes              Since 2004         Investor (2001-present).             41                       None.
Year of birth: 1951                               Formerly, Senior Vice
Trustee                                           President & Treasurer,
                                                  (1993-1997), President, Pizza
                                                  Hut International (1991-1993)
                                                  and Senior Vice President,
                                                  Strategic Planning and New
                                                  Business Development
                                                  (1987-1990) of PepsiCo, Inc.
                                                  (1987-1997).

------------------------------------------------------------------------------------------------------------------------------------
Howard H. Kaplan               Since 2004         Partner of Stinson Morrison          2                        None.
Year of birth: 1969                               Hecker LLP, a law firm
Trustee                                           providing legal advice in
                                                  business law and litigation.

------------------------------------------------------------------------------------------------------------------------------------
Robert B. Karn III             Since 2004         Consultant (1998-present).           2                        Director of Peabody
Year of birth: 1942                               Previously, Managing                                          Energy Company, GP,
Trustee                                           Partner, Financial and                                        Natural Resource
                                                  Economic Consulting, St.                                      Partners LLC and
                                                  Louis Office of Arthur                                        Kennedy Capital
                                                  Andersen, LLP.                                                Management,  Inc.

------------------------------------------------------------------------------------------------------------------------------------
Ronald A. Nyberg               Since 2004         Partner of Nyberg &                  44                       None.
Year of birth: 1953                               Cassioppi, LLC, a law firm
Trustee                                           specializing in corporate
                                                  law, estate planning and
                                                  business transactions
                                                  (2000-present). Formerly,
                                                  Executive Vice President,
                                                  General Counsel and
                                                  Corporate Secretary of Van
                                                  Kampen Investments
                                                  (1982-1999).

------------------------------------------------------------------------------------------------------------------------------------
John M. Roeder                 Since 2005         Financial consultant                 2                        Director, LMI
Year of birth: 1943                               (1999-present). Formerly,                                     Aerospace.
Trustee                                           Director in Residence at The
                                                  Institute for Excellence in
                                                  Corporate Governance of the
                                                  University of Texas at
                                                  Dallas School of Management.
                                                  Office Managing Partner,
                                                  Arthur Andersen, LLP.

------------------------------------------------------------------------------------------------------------------------------------
Ronald E. Toupin, Jr.          Since 2004         Retired.                             41                       None.
Year of birth: 1958                               Formerly, Vice President,
Trustee                                           Manager and Portfolio
                                                  Manager of Nuveen Asset
                                                  Management (1998-1999), Vice
                                                  President of Nuveen
                                                  Investment Advisory Corp.
                                                  (1992-1999), Vice President
                                                  and Manager of Nuveen Unit
                                                  Investment Trusts
                                                  (1991-1999), and Assistant
                                                  Vice President and Portfolio
                                                  Manager of Nuveen Unit
                                                  Investment Trusts
                                                  (1988-1999), each of John
                                                  Nuveen & Co., Inc.
                                                  (1982-1999).

INTERESTED TRUSTEES:
====================================================================================================================================
Nicholas Dalmaso+              Since 2004         Attorney. Formerly, Senior           44                       None.
Year of birth: 1965                               Managing Director and Chief
Trustee                                           Administrative Officer
                                                  (2007-2008) and General
                                                  Counsel of Claymore Advisors,
                                                  LLC and Claymore
                                                  Securities, Inc. Formerly,
                                                  Assistant General
                                                  Counsel, John Nuveen and
                                                  Company Inc. (1999-2000).
                                                  Former Vice President and
                                                  Associate General Counsel of
                                                  Van Kampen Investments, Inc.
                                                  (1992-1999).

------------------------------------------------------------------------------------------------------------------------------------
Joseph E. Gallagher, Jr.++     Since 2004         Executive Managing Director          2                        Member of the
8112 Maryland Avenue                              and Chief Operating Officer                                   Board of Directors
Suite 400                                         of Fiduciary Asset                                            for the Rossman
St. Louis, MO 63105                               Management, LLC                                               School
Year of Birth: 1956                               (1994-present). Member of
Trustee                                           the St. Louis Chapter of the
                                                  National Association for
                                                  Business Economics.



*    Address for all Trustees unless otherwise noted: 2455 Corporate West Drive,
     Lisle, IL 60532

**   After a Trustee's initial term, each Trustee is expected to serve a
     three-year term concurrent with the class of Trustees for which he serves:
     -Messrs. Roeder, Toupin and Karn, as Class III trustees, are expected to
     stand for re-election at the Fund's 2008 annual meeting of shareholders.
     -Messrs. Barnes and Dalmaso, as Class I trustees, are expected to stand for
     re-election at the Fund's 2009 annual meeting of shareholders.
     -Messrs. Gallagher, Kaplan and Nyberg, as Class II trustees, are expected
     to stand for re-election at the Fund's 2010 annual meeting of shareholders.

***  The Claymore Fund Complex consists of U.S. registered investment companies
     advised or serviced by Claymore Advisors, LLC or Claymore Securities, Inc.

+    Mr. Dalmaso is an "interested person" (as defined in section 2(a)(19) of
     the 1940 Act) of the Fund because of his former position as an officer of
     and his equity ownership in Claymore Advisors, LLC, the Fund's Investment
     Adviser, and certain of its affiliates.

++   Mr. Gallagher is an "interested person" (as defined in section 2(a)(19) of
     the 1940 Act) of the Fund because of his position as an officer of
     Fiduciary Asset Management, LLC, the Fund's Sub-Adviser.

22 | SemiAnnual Report | May 31, 2008



FMO | Fiduciary/Claymore MLP Opportunity Fund | SUPPLEMENTAL INFORMATION
(unaudited) continued


OFFICERS
The Officers of the Fiduciary/Claymore MLP Opportunity Fund and their principal
occupation during the past five years:



                                                                               
NAME, ADDRESS*, YEAR OF BIRTH AND                TERM OF OFFICE** AND                PRINCIPAL OCCUPATION DURING THE PAST FIVE YEARS
POSITION(S) HELD WITH REGISTRANT                 LENGTH OF TIME SERVED               AND OTHER AFFILIATIONS
====================================================================================================================================
OFFICERS:
====================================================================================================================================
J. Thomas Futrell                                Effective May 29, 2008              Senior Managing Director and Chief Investment
Year of birth: 1955                                                                  Officer of Claymore Advisors, LLC and Claymore
Chief Executive Officer                                                              Securities, Inc. (2008-present). Formerly,
                                                                                     Managing Director of Research, Nuveen Asset
                                                                                     Management (2000-2007).
------------------------------------------------------------------------------------------------------------------------------------
Kevin M. Robinson                                Effective May 29, 2008              Senior Managing Director and General Counsel of
Year of birth: 1959                                                                  Claymore Advisors, LLC, Claymore Securities,
Chief Legal Officer                                                                  Inc. and Claymore Group, Inc. (2007-present).
                                                                                     Formerly, Associate General Counsel and
                                                                                     Assistant Corporate Secretary of NYSE Euronext,
                                                                                     Inc. (2000-2007).
------------------------------------------------------------------------------------------------------------------------------------
Steven M. Hill                                   Since 2004                          Senior Managing Director of Claymore Advisors,
Year of birth: 1964                                                                  LLC and Claymore Securities, Inc.
Chief Financial Officer, Chief                                                       (2005-present). Previously, Chief Financial
Accounting Officer and Treasurer                                                     Officer of Claymore Group Inc. (2005-2006).
                                                                                     Managing Director of Claymore Advisors, LLC and
                                                                                     Claymore Securities, Inc. (2003-2005).
                                                                                     Treasurer of Henderson Global Funds and
                                                                                     Operations Manager for Henderson Global
                                                                                     Investors (North America) Inc., (2002-2003);
                                                                                     Managing Director, FrontPoint Partners LLC
                                                                                     (2001-2002); Vice President, Nuveen Investments
                                                                                     (1999-2001); Chief Financial Officer, Skyline
                                                                                     Asset Management LP, (1999); Vice President,
                                                                                     Van Kampen Investments and Assistant Treasurer,
                                                                                     Van Kampen mutual funds (1989-1999).
------------------------------------------------------------------------------------------------------------------------------------
Bruce Saxon                                      Since 2006                          Vice President - Fund Compliance Officer of
Year of birth: 1957                                                                  Claymore Advisors, LLC (Feb. 2006-present).
Chief Compliance Officer                                                             Previously, Chief Compliance Officer/Assistant
                                                                                     Secretary of Harris Investment Management,
                                                                                     Inc. (2003-2006). Director-Compliance of
                                                                                     Harrisdirect LLC (1993-2003).
------------------------------------------------------------------------------------------------------------------------------------
Mark E. Mathiasen                                Since 2007                          Assistant Vice President, Assistant General
Year of Birth: 1978                                                                  Counsel of Claymore Group, Inc. (2007 to
Secretary                                                                            present). Secretary of certain funds in the
                                                                                     Fund Complex. Previously, Law Clerk for the
                                                                                     Idaho State Courts (2003-2007).
------------------------------------------------------------------------------------------------------------------------------------
James Cunnane, Jr.                               Since 2007                          Managing Director, Senior Portfolio Manager
Year of Birth: 1970                                                                  (1996-present) of Fiduciary Asset Management,
Vice President                                                                       LLC.
------------------------------------------------------------------------------------------------------------------------------------
Mohammed Riad                                    Since 2007                          Managing Director, Senior Portfolio Manager
Year of Birth: 1969                                                                  (1999-present) of Fiduciary Asset Management,
Vice President                                                                       LLC.
------------------------------------------------------------------------------------------------------------------------------------
Matthew J. Patterson                             Since 2006                          Vice President, Assistant General Counsel of
Year of birth: 1971                                                                  Claymore Group, Inc. (2006 to present).
Assistant Secretary                                                                  Secretary of certain funds in the Fund Complex.
                                                                                     Previously, Chief Compliance Officer and Clerk,
                                                                                     The Preferred Group of Mutual Funds
                                                                                     (2005-2006). Chief Compliance Officer and
                                                                                     Secretary, Caterpillar Investment Management
                                                                                     Ltd. (2005-2006); Securities Counsel,
                                                                                     Caterpillar Inc. (2004-2006); Associate,
                                                                                     Skadden, Arps, Slate, Meagher & Flom LLP
                                                                                     (2002-2004).
------------------------------------------------------------------------------------------------------------------------------------
James Howley                                     Since 2004                          Vice President, Fund Administration of Claymore
Year of birth: 1972                                                                  Group, Inc. (2004-present). Previously,
Assistant Treasurer                                                                  Manager, Mutual Fund Administration of Van
                                                                                     Kampen Investments.
------------------------------------------------------------------------------------------------------------------------------------
Melissa J. Nguyen                                Since 2006                          Vice President, Assistant General Counsel of
Year of birth: 1978                                                                  Claymore Advisors, LLC. (2005 to present).
Assistant Secretary                                                                  Secretary of certain funds in the Fund Complex.
                                                                                     Previously, Associate, Vedder, Price, Kaufman &
                                                                                     Kammholz, P.C. (2003-2005).
------------------------------------------------------------------------------------------------------------------------------------



*    Address for all Officers: 2455 Corporate West Drive, Lisle, IL 60532

**   Officers serve at the pleasure of the Board of Trustees and until his or
     her successor is appointed and qualified or until his or her earlier
     resignation or removal.

                                           SemiAnnual Report | May 31, 2008 | 23


FMO |  Fiduciary/Claymore MLP Opportunity Fund

Dividend Reinvestment PLAN | (unaudited)

Unless the registered owner of common shares elects to receive cash by
contacting the Plan Administrator, all dividends declared on common shares of
the Fund will be automatically reinvested by The Bank of New York Mellon (the
"Plan Administrator"), Administrator for shareholders in the Fund's Dividend
Reinvestment Plan (the "Plan"), in additional common shares of the Fund.
Participation in the Plan is completely voluntary and may be terminated or
resumed at any time without penalty by notice if received and processed by the
Plan Administrator prior to the dividend record date; otherwise such termination
or resumption will be effective with respect to any subsequently declared
dividend or other distribution. Some brokers may automatically elect to receive
cash on your behalf and may re-invest that cash in additional common shares of
the Fund for you. If you wish for all dividends declared on your common shares
of the Fund to be automatically reinvested pursuant to the Plan, please contact
your broker.

The Plan Administrator will open an account for each common shareholder under
the Plan in the same name in which such common shareholder's common shares are
registered. Whenever the Fund declares a dividend or other distribution
(together, a "Dividend") payable in cash, non-participants in the Plan will
receive cash and participants in the Plan will receive the equivalent in common
shares. The common shares will be acquired by the Plan Administrator for the
participants' accounts, depending upon the circumstances described below, either
(i) through receipt of additional unissued but authorized common shares from the
Fund ("Newly Issued Common Shares") or (ii) by purchase of outstanding common
shares on the open market ("Open-Market Purchases") on the New York Stock
Exchange or elsewhere. If, on the payment date for any Dividend, the closing
market price plus estimated brokerage commission per common share is equal to or
greater than the net asset value per common share, the Plan Administrator will
invest the Dividend amount in Newly Issued Common Shares on behalf of the
participants. The number of Newly Issued Common Shares to be credited to each
participant's account will be determined by dividing the dollar amount of the
Dividend by the net asset value per common share on the payment date; provided
that, if the net asset value is less than or equal to 95% of the closing market
value on the payment date, the dollar amount of the Dividend will be divided by
95% of the closing market price per common share on the payment date. If, on the
payment date for any Dividend, the net asset value per common share is greater
than the closing market value plus estimated brokerage commission, the Plan
Administrator will invest the Dividend amount in common shares acquired on
behalf of the participants in Open-Market Purchases.

If, before the Plan Administrator has completed its Open-Market Purchases, the
market price per common share exceeds the net asset value per common share, the
average per common share purchase price paid by the Plan Administrator may
exceed the net asset value of the common shares, resulting in the acquisition of
fewer common shares than if the Dividend had been paid in Newly Issued Common
Shares on the Dividend payment date. Because of the foregoing difficulty with
respect to Open-Market Purchases, the Plan provides that if the Plan
Administrator is unable to invest the full Dividend amount in Open-Market
Purchases during the purchase period or if the market discount shifts to a
market premium during the purchase period, the Plan Administrator may cease
making Open-Market Purchases and may invest the uninvested portion of the
Dividend amount in Newly Issued Common Shares at net asset value per common
share at the close of business on the Last Purchase Date provided that, if the
net asset value is less than or equal to 95% of the then current market price
per common share; the dollar amount of the Dividend will be divided by 95% of
the market price on the payment date.

The Plan Administrator maintains all shareholders' accounts in the Plan and
furnishes written confirmation of all transactions in the accounts, including
information needed by shareholders for tax records. Common shares in the account
of each Plan participant will be held by the Plan Administrator on behalf of the
Plan participant, and each shareholder proxy will include those shares purchased
or received pursuant to the Plan. The Plan Administrator will forward all proxy
solicitation materials to participants and vote proxies for shares held under
the Plan in accordance with the instruction of the participants. There will be
no brokerage charges with respect to common shares issued directly by the Fund.
However, each participant will pay a pro rata share of brokerage commission
incurred in connection with Open-Market Purchases. The automatic reinvestment of
Dividends will not relieve participants of any Federal, state or local income
tax that may be payable (or required to be withheld) on such Dividends.

The Fund reserves the right to amend or terminate the Plan. There is no direct
service charge to participants with regard to purchases in the Plan; however,
the Fund reserves the right to amend the Plan to include a service charge
payable by the participants.

All correspondence or questions concerning the Plan should be directed to the
Plan Administrator, The Bank of New York Mellon, Attention: Stock Transfer
Department, 101 Barclay 11E, New York, NY 10286, Phone Number: (866) 488-3559.



24 | SemiAnnual Report | May 31, 2008



FMO |  Fiduciary/Claymore MLP Opportunity Fund

Fund INFORMATION |

BOARD OF TRUSTEES

Randall C. Barnes

Nicholas Dalmaso*

Joseph E. Gallagher, Jr.**

Howard H. Kaplan

Robert B. Karn III

Ronald A. Nyberg

John M. Roeder

Ronald E. Toupin, Jr.

*    Trustee is an "interested person" of the Fund as defined in the Investment
     Company Act of 1940, as amended, as a result of his former position as an
     officer of and his equity ownership in Claymore Advisors, LLC, the Fund's
     Investment Adviser, and certain of its affiliates.

**   Trustee is an "interested person" of the Fund as defined in the Investment
     Company Act of 1940, as amended

OFFICERS

J. Thomas Futrell
Chief Executive Officer

Kevin M. Robinson
Chief Legal Officer

Steven M. Hill
Chief Accounting Officer,
Chief Financial Officer and Treasurer

Bruce Saxon
Chief Compliance Officer

Mark E. Mathiasen
Secretary

James Cunnane, Jr.
Vice President

Mohammed Riad
Vice President

James Howley
Assistant Treasurer

Matthew J. Patterson
Assistant Secretary

Melissa J. Nguyen
Assistant Secretary

INVESTMENT ADVISER
AND ADMINISTRATOR
Claymore Advisors, LLC
Lisle, Illinois

INVESTMENT SUB-ADVISER
Fiduciary Asset Management, LLC
St. Louis, Missouri

ACCOUNTING AGENT,
CUSTODIAN AND TRANSFER AGENT
The Bank of New York Mellon
New York, New York

LEGAL COUNSEL
Skadden, Arps, Slate,
Meagher & Flom LLP
Chicago, Illinois

INDEPENDENT REGISTERED
PUBLIC ACCOUNTING FIRM
Ernst & Young LLP
Chicago, Illinois

PRIVACY PRINCIPLES OF FIDUCIARY/CLAYMORE MLP OPPORTUNITY FUND FOR SHAREHOLDERS

The Fund is committed to maintaining the privacy of its shareholders and to
safeguarding its non-public personal information. The following information is
provided to help you understand what personal information the Fund collects, how
we protect that information and why, in certain cases, we may share information
with select other parties.

Generally, the Fund does not receive any non-public personal information
relating to its shareholders, although certain non-public personal information
of its shareholders may become available to the Fund. The Fund does not disclose
any non-public personal information about its shareholders or former
shareholders to anyone, except as permitted by law or as is necessary in order
to service shareholder accounts (for example, to a transfer agent or third party
administrator).

The Fund restricts access to non-public personal information about the
shareholders to Claymore Advisors, LLC employees with a legitimate business need
for the information. The Fund maintains physical, electronic and procedural
safeguards designed to protect the non-public personal information of its
shareholders.

QUESTIONS CONCERNING YOUR SHARES OF FIDUCIARY/CLAYMORE MLP OPPORTUNITY FUND?

o    If your shares are held in a Brokerage Account, contact your Broker.

o    If you have physical possession of your shares in certificate form, contact
     the Fund's Accounting Agent, Custodian and Transfer Agent: The Bank of New
     York Mellon, 101 Barclay 11E New York, New York 10286; (866) 488-3559

This report is sent to shareholders of Fiduciary/Claymore MLP Opportunity Fund
for their information. It is not a Prospectus, circular or representation
intended for use in the purchase or sale of shares of the Fund or of any
securities mentioned in this report.

A description of the Fund's proxy voting policies and procedures related to
portfolio securities is available without charge, upon request, by calling the
Fund at (888) 991-0091.

Information regarding how the Fund voted proxies for portfolio securities, if
applicable, during the most recent 12-month period ended June 30, is also
available, without charge and upon request by calling (888) 991-0091 or by
accessing the Fund's Form N-PX on the SEC's website at www.sec.gov or
www.claymore.com.

The Fund files its complete schedule of portfolio holdings with the SEC for the
first and third quarters of each fiscal year on Form N-Q. The Fund's Form N-Q is
available on the SEC website at www.sec.gov or www.claymore.com. The Fund's Form
N-Q may also be viewed and copied at the SEC's Public Reference Room in
Washington, DC; information on the operation of the Public Reference Room may be
obtained by calling (800) SEC-0330 or at www.sec.gov.

In September 2007, the Fund submitted a CEO annual certification to the NYSE in
which the Fund's principal executive officer certified that he was not aware, as
of the date of the certification, of any violation by the Fund of the NYSE's
Corporate Governance listing standards. In addition, as required by Section 302
of the Sarbanes-Oxley Act of 2002 and related SEC rules, the Fund's principal
executive and principal financial officers have made quarterly certifications,
included in filings with the SEC on Forms N-CSR and N-Q, relating to, among
other things, the Fund's disclosure controls and procedures and internal control
over financial reporting.



                                           SemiAnnual Report | May 31, 2008 | 25



FMO |  Fiduciary/Claymore MLP Opportunity Fund

About the FUND MANAGER |


FIDUCIARY ASSET MANAGEMENT, LLC
Fiduciary is a registered investment adviser that manages a broad array of
equity and fixed-income portfolios primarily for institutional investors and is
based in St. Louis, Missouri. Fiduciary currently supervises and manages
approximately $17.8 billion in assets for endowments & foundations, public
pension plans, corporate trusts, union plans, Taft-Hartley plans, three
exchange-listed closed-end funds and five private investment funds.


INVESTMENT PHILOSOPHY
Fiduciary believes that investment decisions should always be guided
by a disciplined, risk-aware strategy that seeks to add value in all market
environments. Their unique investment philosophy is multifaceted, utilizing
macroeconomic analysis, disciplined security selection, cost-controlled trading
procedures, continuous risk analysis and an unwavering focus on achieving
shareholder objectives.


INVESTMENT PROCESS
The manager seeks to achieve the Fund's investment objective by investing
primarily in securities of MLP (Master Limited Partnership) entities that
Fiduciary believes offer attractive distribution rates and capital appreciation
potential. Energy and natural resources represent a substantial portion of the
MLP entities. In seeking investments, Fiduciary looks for MLPs that offer a
combination of quality, growth and yield; intended to produce superior total
returns over the long run. In selecting individual positions, the manager
employs Fiduciary's top-down process which considers a combination of
quantitative, qualitative and relative value factors. Fiduciary emphasizes
rigorous proprietary analysis and valuation models constructed and maintained by
its in-house investment analysts, while maintaining active dialogues with
research analysts covering the MLP entities and an ongoing relationship with
company management. In applying its selection criteria, the manager considers a
company's proven track record, business prospects, strong record of distribution
or dividend growth, ratios of debt to cash flow, coverage ratios with respect to
distributions to unit holders, distribution incentive structure and the
composition and goals of the company management team.

26 | SemiAnnual Report | May 31, 2008


                     (This page is intentionally left blank)



FIDUCIARY ASSET MANAGEMENT, LLC
8112 Maryland Ave.
Suite 400
St. Louis, MO 63105

CLAYMORE SECURITIES, INC.
2455 Corporate West Drive
Lisle, IL 60532
Member FINRA/SIPC  (07/08)

FMO
LISTED
NYSE


FMO-SAR-0508



Item 2.  Code of Ethics.

Not applicable for a semi-annual reporting period.

Item 3.  Audit Committee Financial Expert.

Not applicable for a semi-annual reporting period.

Item 4.  Principal Accountant Fees and Services.

Not applicable for a semi-annual reporting period.

Item 5.  Audit Committee of Listed Registrants.

Not applicable for a semi-annual reporting period.

Item 6.  Schedule of Investments.

The Schedule of Investments is included as part of Item 1.

Item 7.  Disclosure of Proxy Voting Policies and Procedures for Closed-End
Management Investment Companies.

Not applicable for a semi-annual reporting period.

Item 8.  Portfolio Managers of Closed-End Management Investment Companies.

          (a)  Not applicable for a semi-annual reporting period.

          (b)  There has been no change,  as of the date of this filing,  in the
               Portfolio  Manager  identified in response to paragraph (a)(1) of
               this Item in the  registrant's  most recent annual report on Form
               N-CSR.

Item 9.  Purchases of Equity Securities by Closed-End Management Investment
Company and Affiliated Purchasers.

None.

Item 10.  Submission of Matters to a Vote of Security Holders.

The registrant has not made any material changes to the procedures by which
shareholders may recommend nominees to the registrant's Board of Trustees.

Item 11.  Controls and Procedures.

(a) The registrant's principal executive officer and principal financial officer
have evaluated the registrant's disclosure controls and procedures (as defined
in Rule 30a under the Investment Company Act of 1940) as of a date within 90
days of this filing and have concluded based on such



evaluation, as required by Rule 30a-3(b) under the Investment Company Act of
1940, that the registrant's disclosure controls and procedures were effective,
as of that date, in ensuring that information required to be disclosed by the
registrant in this Form N-CSR was recorded, processed, summarized, and reported
within the time periods specified in the Securities and Exchange Commission's
rules and forms.

(b) There were no changes in the registrant's internal control over financial
reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940)
that occurred during the registrant's second fiscal quarter that have materially
affected, or are reasonably likely to materially affect, the registrant's
internal control over financial reporting.

Item 12.  Exhibits.

(a)(1) Not applicable.

(a)(2) Certifications of principal executive officer and principal financial
officer pursuant to Rule 30a-2(a) of the Investment Company Act of 1940.

(b)    Certifications of principal executive officer and principal financial
officer pursuant to Rule 30a-2(b) of the Investment Company Act of 1940 and
Section 906 of the Sarbanes-Oxley Act of 2002.



                                   SIGNATURES



     Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, the registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.

(Registrant) Fiduciary/Claymore MLP Opportunity Fund

By: /s/  J. Thomas Futrell
    ------------------------------------------------

Name:    J. Thomas Futrell

Title:   Chief Executive Officer

Date:    August 4, 2008

         Pursuant to the requirements of the Securities Exchange Act of 1934 and
the Investment Company Act of 1940, this report has been signed by the following
persons on behalf of the registrant and in the capacities and on the dates
indicated.

By: /s/  J. Thomas Futrell
    ------------------------------------------------
Name:    J. Thomas Futrell

Title:   Chief Executive Officer

Date: August 4, 2008



By: /s/  Steven M. Hill
    ------------------------------------------------
Name:    Steven M. Hill

Title:   Chief Financial Officer, Chief Accounting Officer and Treasurer

Date: August 4, 2008