UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-07083 Name of Fund: BlackRock MuniYield Arizona Fund, Inc. Fund Address: P.O. Box 9011 Princeton, NJ 08543-9011 Name and address of agent for service: Robert C. Doll, Jr., Chief Executive Officer (principal executive officer), BlackRock MuniYield Arizona Fund, Inc., 800 Scudders Mill Road, Plainsboro, NJ, 08536. Mailing address: P.O. Box 9011, Princeton, NJ, 08543-9011 Registrant's telephone number, including area code: (800) 882-0052 Date of fiscal year end: 10/31/2007 Date of reporting period: 05/01/2007 - 07/31/2007 Item 1 - Schedule of Investments BlackRock MuniYield Arizona Fund, Inc. Schedule of Investments as of July 31, 2007 (Unaudited) (in Thousands) Face Amount Municipal Bonds Value Arizona - 133.0% $ 1,000 Arizona Educational Loan Marketing Corporation, Educational Loan Revenue Refunding Bonds, AMT, Junior Sub-Series, 6.30% due 12/01/2008 $ 1,004 1,435 Arizona Health Facilities Authority Revenue Bonds (Catholic Healthcare West), Series A, 6.625% due 7/01/2010 (h) 1,555 3,285 Arizona Student Loan Acquisition Authority, Student Loan Revenue Refunding Bonds, AMT, Junior Subordinated Series B-1, 6.15% due 5/01/2029 3,455 1,000 Arizona Student Loan Acquisition Authority, Student Loan Revenue Refunding Bonds, AMT, Senior-Series A-1, 5.90% due 5/01/2024 1,049 1,000 Arizona Tourism and Sports Authority, Tax Revenue Bonds (Baseball Training Facilities Project), 5% due 7/01/2016 1,018 1,500 Downtown Phoenix Hotel Corporation, Arizona, Revenue Bonds, Senior Series A, 5% due 7/01/2036 (c) 1,549 1,500 Downtown Phoenix Hotel Corporation, Arizona, Revenue Bonds, Sub-Series B, 5% due 7/01/2036 (c) 1,549 1,000 Flagstaff, Arizona, Aspen Place at the Sawmill Improvement District, Special Assessment Improvement Bonds, 5% due 1/01/2032 1,000 1,000 Gila County, Arizona, Unified School District Number 10 (Payson), GO (School Improvement Project of 2006), Series A, 1% due 7/01/2027 (a)(n) 979 1,000 Gilbert, Arizona, Water Resource Municipal Property Corporation, Water System Development Fee and Utility Revenue Bonds, Subordinated Lien, 5% due 10/01/2029 (g) 1,043 750 Gladden Farms Community Facilities District, Arizona, GO, 5.50% due 7/15/2031 761 2,500 Glendale, Arizona, IDA, Revenue Refunding Bonds (Midwestern University), 5% due 5/15/2031 2,544 3,000 Greater Arizona Development Authority, Infrastructure Revenue Bonds, Series B, 5% due 8/01/2030 (g) 3,112 900 Maricopa County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project 1), Series A, 6.625% due 7/01/2020 892 Portfolio Abbreviations To simplify the listings of BlackRock MuniYield Arizona Fund, Inc.'s portfolio holdings in the Schedule of Investments, we have abbreviated the names of many of the securities according to the list below. AMT Alternative Minimum Tax (subject to) COP Certificates of Participation GO General Obligation Bonds IDA Industrial Development Authority PCR Pollution Control Revenue Bonds S/F Single-Family BlackRock MuniYield Arizona Fund, Inc. Schedule of Investments as of July 31, 2007 (Unaudited) (concluded) (in Thousands) Face Amount Municipal Bonds Value Arizona $ 2,000 Maricopa County, Arizona, IDA, Health Facilities Revenue Refunding Bonds (concluded) (Catholic Healthcare West Project), Series A, 5.25% due 7/01/2032 $ 2,042 2,400 Maricopa County, Arizona, IDA, Hospital Facility Revenue Refunding Bonds (Samaritan Health Services), Series A, 7% due 12/01/2016 (b)(g) 2,862 1,999 Maricopa County, Arizona, IDA, S/F Mortgage Revenue Bonds, AMT, Series 3-B, 5.25% due 8/01/2038 (d)(e) 2,050 1,000 Maricopa County, Arizona, Peoria Unified School District Number 11, GO, Second Series, 5% due 7/01/2025 (c) 1,045 1,485 Maricopa County, Arizona, Pollution Control Corporation, PCR, Refunding (Public Service Company of New Mexico Project), Series A, 6.30% due 12/01/2026 1,519 1,825 Maricopa County, Arizona, Scottsdale Unified School District Number 48, GO, 6.60% due 7/01/2012 2,048 500 Maricopa County, Arizona, Tempe Elementary Unified School District Number 3, GO, Refunding, 7.50% due 7/01/2010 (c) 550 1,000 Maricopa County, Arizona, Unified School District Number 090, School Improvement, GO (Saddle Mountain), Series A, 5% due 7/01/2014 1,024 1,000 Mesa, Arizona, IDA Revenue Bonds (Discovery Health Systems), Series A, 5.625% due 1/01/2010 (g)(h) 1,052 1,000 Nogales, Arizona, Municipal Development Authority, Inc., Revenue Bonds, 5% due 6/01/2030 (a) 1,035 2,000 Phoenix and Pima County, Arizona, IDA, S/F Mortgage Revenue Refunding Bonds, AMT, Series 2007-1, 5.25% due 8/01/2038 (d)(e) 2,055 3,325 Phoenix, Arizona, Civic Improvement Corporation, Excise Tax Revenue Bonds (Civic Plaza Expansion Project), Sub-Series A, 5% due 7/01/2035 (c) 3,437 600 Phoenix, Arizona, Civic Improvement Corporation, Senior Lien Airport Revenue Bonds, AMT, Series B, 5.25% due 7/01/2032 (c) 617 2,500 Phoenix, Arizona, Civic Improvement Corporation, Water System Revenue Refunding Bonds, Junior Lien, 5.50% due 7/01/2020 (c) 2,656 2,000 Phoenix, Arizona, Civic Improvement Corporation, Water System Revenue Refunding Bonds, Junior Lien, 5% due 7/01/2029 (g) 2,075 2,000 Phoenix, Arizona, IDA, S/F Mortgage Revenue Bonds, AMT, Series 2007-2, 5.50% due 8/01/2038 (d)(e) 2,091 740 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project), Series C, 6.70% due 7/01/2021 780 990 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project), Series C, 6.75% due 7/01/2031 1,040 1,000 Pima County, Arizona, IDA, Education Revenue Refunding Bonds (Arizona Charter Schools Project), Series O, 5% due 7/01/2026 963 390 Pima County, Arizona, IDA, Education Revenue Refunding Bonds (Arizona Charter Schools Project II), Series A, 6.75% due 7/01/2011 (h) 429 585 Pima County, Arizona, IDA, Education Revenue Refunding Bonds (Arizona Charter Schools Project II), Series A, 6.75% due 7/01/2021 618 1,000 Pima County, Arizona, IDA, Revenue Refunding Bonds (Health Partners), Series A, 5.625% due 4/01/2014 (g) 1,021 3,050 Pima County, Arizona, Unified School District Number 1, Tucson, GO, Refunding, 7.50% due 7/01/2009 (c) 3,257 1,250 Pinal County, Arizona, COP, 5% due 12/01/2026 1,265 1,250 Pinal County, Arizona, COP, 5% due 12/01/2029 1,261 500 Pinal County, Arizona, IDA, Wastewater Revenue Bonds (San Manuel Facilities Project), AMT, 6.25% due 6/01/2026 541 2,000 Queen Creek Improvement District Number 001, Arizona, Special Assessment Bonds, 5% due 1/01/2032 1,994 1,500 Salt River Project, Arizona, Agriculture Improvement and Power District, Electric System Revenue Refunding Bonds, Series A, 5% due 1/01/2035 1,557 2,250 Scottsdale, Arizona, IDA, Hospital Revenue Bonds (Scottsdale Healthcare), 5.80% due 12/01/2011 (h) 2,437 1,195 Show Low, Arizona, IDA, Hospital Revenue Bonds (Navapache Regional Medical Center), 5% due 12/01/2035 (i) 1,193 1,500 South Campus Group LLC, Arizona Student Housing Revenue Bonds (Arizona State University South Campus Project), Series 2003, 5.625% due 9/01/2035 (g) 1,614 1,500 Surprise Municipal Property Corporation, Arizona, Wastewater Development Impact Fee Revenue Bonds, 4.90% due 4/01/2032 1,436 1,000 Tucson and Pima County, Arizona, IDA, S/F Mortgage Revenue Refunding Bonds, AMT, Series B, 5.35% due 6/01/2047 (d)(e) 1,041 1,000 Tucson, Arizona, IDA, Joint S/F Mortgage Revenue Refunding Bonds, AMT, Series A-1, 5.10% due 7/01/2038 (d)(e) 1,020 1,000 Tucson, Arizona, IDA, Senior Living Facilities Revenue Bonds (Christian Care Tucson Inc. Project), Series A, 6.125% due 7/01/2010 (h)(i) 1,072 1,105 University of Arizona, COP, Refunding, Series A, 5.125% due 6/01/2029 (a) 1,148 2,000 University of Arizona, COP, Series B, 5% due 6/01/2028 (a) 2,055 1,275 Vistancia Community Facilities District, Arizona, GO, 6.75% due 7/15/2022 1,395 750 Vistancia Community Facilities District, Arizona, GO, 5.75% due 7/15/2024 801 2,000 Yavapai County, Arizona, IDA, Hospital Facility Revenue Bonds (Yavapai Regional Medical Center), Series A, 6% due 8/01/2033 2,116 1,000 Yavapai County, Arizona, IDA, Solid Waste Disposal Revenue Bonds (Waste Management Inc. Project), AMT, Series A-1, 4.90% due 3/01/2028 951 1,775 Yuma County, Arizona, Library District, GO, 5% due 7/01/2026 (m) 1,863 Guam - 1.7% 1,000 Guam Government Waterworks Authority, Water and Wastewater System, Revenue Refunding Bonds, 5.875% due 7/01/2035 1,057 Puerto Rico - 1 8.7% 1,000 Puerto Rico Commonwealth Highway and Transportation Authority, Highway Revenue Refunding Bonds, Series CC, 5.50% due 7/01/2031 1,113 1,000 Puerto Rico Commonwealth Highway and Transportation Authority, Highway Revenue Refunding Bonds, Series CC, 5.25% due 7/01/2032 (l) 1,117 1,000 Puerto Rico Commonwealth Highway and Transportation Authority, Highway Revenue Refunding Bonds, Series CC, 5.25% due 7/01/2036 (l) 1,115 560 Puerto Rico Commonwealth Highway and Transportation Authority, Transportation Revenue Bonds, Series G, 5% due 7/01/2033 570 2,000 Puerto Rico Commonwealth, Public Improvement, GO, Series A, 5.125% due 7/01/2031 2,037 1,165 Puerto Rico Electric Power Authority, Power Revenue Bonds, Series NN, 5.125% due 7/01/2013 (h) 1,245 1,000 Puerto Rico Electric Power Authority, Power Revenue Bonds, Series TT, 5% due 7/01/2037 1,026 1,500 Puerto Rico Industrial, Tourist, Educational, Medical and Environmental Control Facilities Revenue Bonds (Cogeneration Facility-AES Puerto Rico Project), AMT, 6.625% due 6/01/2026 1,604 2,000 Puerto Rico Public Buildings Authority, Government Facilities Revenue Refunding Bonds, Series I, 5.25% due 7/01/2033 2,086 Total Municipal Bonds (Cost - $95,442) - 153.4% 97,506 Municipal Bonds Held in Trust (j) Arizona - 14.6% 8,670 Arizona State University Revenue Bonds, 5.50% due 7/01/2012 (c)(h) 9,309 Puerto Rico - 1.7% 1,000 Puerto Rico Commonwealth, Public Improvement, GO, 5.75% due 7/01/2016 (g) 1,053 Total Municipal Bonds Held in Trust (Cost - $10,099) - 16.3% 10,362 Shares Held Short-Term Securities 245 CMA Arizona Municipal Money Fund, 2.99% (f)(k) 245 Total Short-Term Securities (Cost - $245) - 0.4% 245 Total Investments (Cost - $105,786*) - 170.1% 108,113 Other Assets Less Liabilities - 1.0% 631 Liability for Trust Certificates, Including Interest Expense Payable - (7.6%) (4,850) Preferred Stock, at Redemption Value - (63.5%) (40,320) ----------- Net Assets Applicable to Common Stock - 100.0% $ 63,574 =========== * The cost and unrealized appreciation (depreciation) of investments as of July 31, 2007, as computed for federal income tax purposes, were as follows: Aggregate cost $ 101,080 ============== Gross unrealized appreciation $ 2,811 Gross unrealized depreciation (613) -------------- Net unrealized appreciation $ 2,198 ============== (a) AMBAC Insured. (b) Escrowed to maturity. (c) FGIC Insured. (d) FHLMC Collateralized. (e) FNMA/GNMA Collateralized. (f) Investments in companies considered to be an affiliate of the Fund, for purposes of Section 2(a)(3) of the Investment Company Act of 1940, were as follows: Net Dividend Affiliate Activity Income CMA Arizona Municipal Money Fund (1,173) $ 29 (g) MBIA Insured. (h) Prerefunded. (i) Radian Insured. (j) Securities represent underlying bonds transferred to a separate securitization trust established in a tender option bond transaction in which the Fund may have acquired the residual interest certificates. These securities serve as collateral in a financing transaction. (k) Represents the current yield as of July 31, 2007. (l) FSA Insured. (m) XL Capital Insured. (n) Represents a step bond. Item 2 - Controls and Procedures 2(a) - The registrant's principal executive and principal financial officers or persons performing similar functions have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the "1940 Act")) are effective as of a date within 90 days of the filing of this report based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act and Rule 13a-15(b) under the Securities and Exchange Act of 1934, as amended. 2(b) - There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the registrant's last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 3 - Exhibits Certifications - Attached hereto 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. BlackRock MuniYield Arizona Fund, Inc. By: /s/ Robert C. Doll, Jr. ------------------------ Robert C. Doll, Jr., Chief Executive Officer (principal executive officer) of BlackRock MuniYield Arizona Fund, Inc. Date: September 20, 2007 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By: /s/ Robert C. Doll, Jr. ------------------------ Robert C. Doll, Jr., Chief Executive Officer (principal executive officer) of BlackRock MuniYield Arizona Fund, Inc. Date: September 20, 2007 By: /s/ Donald C. Burke -------------------- Donald C. Burke, Chief Financial Officer (principal financial officer) of BlackRock MuniYield Arizona Fund, Inc. Date: September 20, 2007