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 811-05611 Name of Fund: BlackRock MuniVest Fund, Inc. (MVF) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: Donald C. Burke, Chief Executive Officer, BlackRock MuniVest 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, Option 4 Date of fiscal year end: 08/31/2008 Date of reporting period: 09/01/2008 - 11/30/2008 Item 1 - Schedule of Investments BlackRock MuniVest Fund, Inc. Schedule of Investments November 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par State Municipal Bonds (000) Value ---------------------------------------------------------------------------------------------------------------------------------- Alabama - 3.1% Camden, Alabama, IDB, Exempt Facilities Revenue Bonds (Weyerhaeuser Company), Series A, 6.125%, 12/01/13 (a) $ 2,550 $ 2,902,741 Huntsville, Alabama, Health Care Authority Revenue Bonds, Series A, 5.75%, 6/01/11 (a) 3,500 3,793,510 Prattville, Alabama, IDB, Environmental Improvement Revenue Bonds (International Paper Company Projects), AMT, Series A, 4.75%, 12/01/30 6,500 3,398,590 Selma, Alabama, IDB, Environmental Improvement Revenue Refunding Bonds (International Paper Company Project), Series B, 5.50%, 5/01/20 5,000 3,846,600 ------------- 13,941,441 ---------------------------------------------------------------------------------------------------------------------------------- Arizona - 1.7% Maricopa County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project 1), Series A, 6.75%, 7/01/29 4,100 3,089,391 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project), Series E, 7.25%, 7/01/31 2,055 1,750,716 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project), Series I, 6.10%, 7/01/24 500 391,560 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project), Series I, 6.30%, 7/01/31 1,000 739,890 Pima County, Arizona, IDA, Education Revenue Refunding Bonds (Arizona Charter Schools Project), Series O, 5%, 7/01/26 1,545 1,040,959 Pima County, Arizona, IDA, Education Revenue Refunding Bonds (Arizona Charter Schools Project II), Series A, 6.75%, 7/01/21 940 826,410 ------------- 7,838,926 ---------------------------------------------------------------------------------------------------------------------------------- California - 10.0% California State, GO, 5.50%, 4/01/30 10 9,694 California State Public Works Board, Lease Revenue Bonds (Department of Corrections), Series C, 5.50%, 6/01/22 5,000 4,996,200 California State Public Works Board, Lease Revenue Bonds (Department of Corrections), Series C, 5.50%, 6/01/23 6,000 5,950,320 California State Public Works Board, Lease Revenue Bonds (Department of Mental Health - Coalinga State Hospital), Series A, 5.125%, 6/01/29 11,075 9,645,660 California Statewide Communities Development Authority, Health Facility Revenue Bonds (Memorial Health Services), Series A, 6%, 10/01/23 5,240 5,153,697 Chula Vista, California, IDR (San Diego Gas and Electric Company), AMT, Series B, 5%, 12/01/27 1,250 937,150 Golden State Tobacco Securitization Corporation of California, Tobacco Settlement Revenue Bonds, Series A-3, 7.875%, 6/01/13 (a) 10,725 12,802,003 Golden State Tobacco Securitization Corporation of California, Tobacco Settlement Revenue Bonds, Series A-4, 7.80%, 6/01/13 (a) 3,750 4,465,012 Portfolio Abbreviations To simplify the listings of portfolio holdings in the Schedule of Investments, the names and descriptions of many of the securities have been abbreviated according to the list below. AMT Alternative Minimum Tax (subject to) EDA Economic Development Authority GO General Obligation Bonds HFA Housing Finance Agency IDA Industrial Development Authority IDB Industrial Development Board IDR Industrial Development Revenue Bonds PCR Pollution Control Revenue Bonds S/F Single-Family BlackRock MuniVest Fund, Inc. Schedule of Investments November 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par State Municipal Bonds (000) Value ---------------------------------------------------------------------------------------------------------------------------------- Golden State Tobacco Securitization Corporation of California, Tobacco Settlement Revenue Bonds, Series A-5, 7.875%, 6/01/13 (a) $ 1,425 $ 1,700,965 ------------- 45,660,701 ---------------------------------------------------------------------------------------------------------------------------------- Colorado - 1.1% Colorado HFA, Revenue Refunding Bonds (S/F Program), AMT, Senior Series A-2, 6.60%, 5/01/28 450 462,658 Colorado HFA, Revenue Refunding Bonds (S/F Program), AMT, Senior Series A-2, 7.50%, 4/01/31 160 168,958 Colorado Health Facilities Authority Revenue Bonds (Catholic Health Initiatives), Series D, 6.25%, 10/01/33 2,500 2,420,225 Colorado Health Facilities Authority Revenue Bonds (Lutheran Medical Center), Series A, 5.25%, 6/01/34 3,000 2,171,370 ------------- 5,223,211 ---------------------------------------------------------------------------------------------------------------------------------- Connecticut - 0.5% Mohegan Tribe Indians Gaming Authority, Connecticut, Public Improvement Revenue Refunding Bonds (Priority Distribution), 6.25%, 1/01/31 2,810 2,079,822 ---------------------------------------------------------------------------------------------------------------------------------- Florida - 3.6% Hillsborough County, Florida, IDA, Hospital Revenue Bonds (H. Lee Moffitt Cancer Center Project), Series A, 5.25%, 7/01/37 6,500 4,652,570 Miami-Dade County, Florida, IDA, Solid Waste Disposal Revenue Bonds (Waster Management, Inc. Project), AMT, Series 1, 3.50%, 12/01/18 (b) 3,200 3,199,680 Orange County, Florida, Health Facilities Authority, Hospital Revenue Bonds (Adventist Health System), 5.625%, 11/15/12 (a) 7,600 8,487,908 ------------- 16,340,158 ---------------------------------------------------------------------------------------------------------------------------------- Georgia - 4.2% Gainesville, Georgia, Redevelopment Authority, Educational Facilities Revenue Refunding Bonds (Riverside Military Academy), 5.125%, 3/01/37 1,100 567,963 Georgia Municipal Electric Authority, Power Revenue Refunding Bonds, Series W, 6.60%, 1/01/18 4,595 5,033,777 Georgia Municipal Electric Authority, Power Revenue Refunding Bonds, Series W, 6.60%, 1/01/18 (c) 250 285,565 Georgia Municipal Electric Authority, Power Revenue Refunding Bonds, Series Y, 10%, 1/01/10 (c) 250 272,055 Houston County, Georgia, Hospital Authority Revenue Bonds (Houston Heart Institute Project), 5.25%, 10/01/35 5,000 3,671,150 Main Street Natural Gas, Inc., Georgia, Gas Project Revenue Bonds, Series A, 6.25%, 7/15/33 (d)(e) 1,165 198,073 Main Street Natural Gas, Inc., Georgia, Gas Project Revenue Bonds, Series A, 6.375%, 7/15/38 (d)(e) 3,270 555,965 Milledgeville-Baldwin County, Georgia, Development Authority Revenue Bonds (Georgia College and State University Foundation), 5.625%, 9/01/14 (a) 3,000 3,447,840 Monroe County, Georgia, Development Authority, PCR, Refunding (Oglethorpe Power Corporation-Scherer), Series A, 6.80%, 1/01/11 4,785 5,085,498 ------------- 19,117,886 ---------------------------------------------------------------------------------------------------------------------------------- Idaho - 0.0% Idaho Housing Agency, S/F Mortgage Revenue Refunding Bonds, AMT, Series E-2, 6.90%, 1/01/27 215 220,343 ---------------------------------------------------------------------------------------------------------------------------------- BlackRock MuniVest Fund, Inc. Schedule of Investments November 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par State Municipal Bonds (000) Value ---------------------------------------------------------------------------------------------------------------------------------- Illinois - 13.1% Chicago, Illinois, O'Hare International Airport, General Airport Revenue Bonds, Third Lien, AMT, Series B-2, 6%, 1/01/27 (f) $ 17,080 $ 14,760,878 Chicago, Illinois, O'Hare International Airport, General Airport Revenue Refunding Bonds, Third Lien, AMT, Series A, 5.75%, 1/01/19 (f) 5,000 4,665,700 Chicago, Illinois, S/F Mortgage Revenue Bonds, AMT, Series C, 7%, 3/01/32 (g)(h)(i) 60 61,474 Hodgkins, Illinois, Environmental Improvement Revenue Bonds (Metro Biosolids Management LLC Project), AMT, 6%, 11/01/23 10,000 8,408,700 Illinois Development Finance Authority Revenue Bonds (Community Rehabilitation Providers Facilities), Series A, 6.50%, 7/01/22 2,140 1,999,038 Illinois Development Finance Authority, Revenue Refunding Bonds (Community Rehabilitation Providers Facilities), Series A, 6%, 7/01/15 370 359,218 Illinois State Finance Authority Revenue Bonds (Advocate Health Care Network), Series D, 6.50%, 11/01/38 9,700 9,305,404 Illinois State Finance Authority Revenue Bonds (Community Rehabilitation Providers Facilities), 4.625%, 7/01/27 2,695 1,825,297 Illinois State Toll Highway Authority Revenue Bonds, Series B, 5.50%, 1/01/33 7,000 6,711,320 Kane and De Kalb Counties, Illinois, Community Unit School District Number 302, GO, 5.75%, 2/01/14 (a)(j) 30 34,044 McLean and Woodford Counties, Illinois, Community Unit School District Number 005, GO, Refunding, 6.25%, 12/01/14 (k) 1,005 1,086,787 McLean and Woodford Counties, Illinois, Community Unit School District Number 005, GO, Refunding, 6.375%, 12/01/16 (k) 845 916,766 Regional Transportation Authority, Illinois, Revenue Bonds, Series A, 7.20%, 11/01/20 (l) 3,500 4,081,175 Regional Transportation Authority, Illinois, Revenue Bonds, Series C, 7.75%, 6/01/20 (f)(j) 4,000 4,798,560 Will County, Illinois, School District Number 122 (New Lenox Elementary), GO, Series A, 6.50%, 11/01/10 (a)(k) 395 428,990 Will County, Illinois, School District Number 122 (New Lenox Elementary), GO, Series A, 6.50%, 11/01/13 (k) 505 537,184 ------------- 59,980,535 ---------------------------------------------------------------------------------------------------------------------------------- Indiana - 6.9% Indiana Health and Educational Facilities Financing Authority, Hospital Revenue Bonds (Clarian Health Obligation), Series A, 5.25%, 2/15/40 8,980 5,869,418 Indiana Transportation Finance Authority, Highway Revenue Bonds, Series A, 6.80%, 12/01/16 8,195 9,137,261 Indianapolis, Indiana, Local Public Improvement Bond Bank, Revenue Refunding Bonds, Series D, 6.75%, 2/01/14 15,335 16,761,615 ------------- 31,768,294 ---------------------------------------------------------------------------------------------------------------------------------- Kansas - 0.8% Sedgwick and Shawnee Counties, Kansas, S/F Mortgage Revenue Bonds (Mortgage-Backed Securities Program), AMT, Series A-4, 5.95%, 12/01/33 (h)(i) 3,805 3,819,878 ---------------------------------------------------------------------------------------------------------------------------------- Kentucky - 1.0% Louisville and Jefferson County, Kentucky, Metropolitan Government Health System, Revenue Refunding Bonds (Norton Healthcare, Inc.), 5.25%, 10/01/36 6,795 4,599,739 ---------------------------------------------------------------------------------------------------------------------------------- BlackRock MuniVest Fund, Inc. Schedule of Investments November 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par State Municipal Bonds (000) Value ---------------------------------------------------------------------------------------------------------------------------------- Louisiana - 3.3% Louisiana Public Facilities Authority, Hospital Revenue Bonds (Franciscan Missionaries of Our Lady Health System, Inc.), Series A, 5%, 8/15/33 $ 8,720 $ 6,260,698 Louisiana Public Facilities Authority, Hospital Revenue Bonds (Franciscan Missionaries of Our Lady Health System, Inc.), Series A, 5.25%, 8/15/36 11,660 8,636,679 ------------- 14,897,377 ---------------------------------------------------------------------------------------------------------------------------------- Maine - 0.3% Portland, Maine, Housing Development Corporation, Senior Living Revenue Bonds (Avesta Housing Development Corporation Project), Series A, 5.70%, 8/01/21 775 645,358 Portland, Maine, Housing Development Corporation, Senior Living Revenue Bonds (Avesta Housing Development Corporation Project), Series A, 6%, 2/01/34 1,190 898,629 ------------- 1,543,987 ---------------------------------------------------------------------------------------------------------------------------------- Maryland - 0.5% Maryland State Community Development Administration, Department of Housing and Community Development, Residential Revenue Refunding Bonds, AMT, Series D, 4.90%, 9/01/42 3,250 2,306,785 ---------------------------------------------------------------------------------------------------------------------------------- Massachusetts - Boston, Massachusetts, Water and Sewer Commission Revenue Bonds, 11.1% 9.25%, 1/01/11 (c) 2,035 2,261,679 Massachusetts Bay Transportation Authority, Revenue Refunding Bonds (General Transportation System), Series A, 7%, 3/01/19 3,010 3,533,198 Massachusetts State, HFA, Housing Revenue Bonds, AMT, Series A, 5.20%, 12/01/37 3,000 2,315,220 Massachusetts State, HFA, Housing Revenue Refunding Bonds, AMT, Series D, 4.85%, 6/01/40 3,000 2,085,630 Massachusetts State, HFA, S/F Housing Revenue Bonds, AMT, Series 130, 5%, 12/01/32 2,500 1,927,400 Massachusetts State Water Resource Authority Revenue Bonds, Series A, 6.50%, 7/15/19 (c) 30,000 34,941,600 Massachusetts State Water Resource Authority, Revenue Refunding Bonds, Series A, 6%, 8/01/10 (a)(j) 3,480 3,734,318 ------------- 50,799,045 ---------------------------------------------------------------------------------------------------------------------------------- Michigan - 6.9% Delta County, Michigan, Economic Development Corporation, Environmental Improvement Revenue Refunding Bonds (Mead Westvaco- Escanaba), Series A, 6.25%, 4/15/12 (a) 2,500 2,784,975 Macomb County, Michigan, Hospital Finance Authority, Hospital Revenue Bonds (Mount Clemens General Hospital), Series B, 5.75%, 11/15/13 (a) 3,715 4,198,433 Macomb County, Michigan, Hospital Finance Authority, Hospital Revenue Bonds (Mount Clemens General Hospital), Series B, 5.875%, 11/15/13 (a) 4,250 4,827,405 Michigan State Hospital Finance Authority, Hospital Revenue Refunding Bonds (Crittenton Hospital), Series A, 5.625%, 3/01/27 1,900 1,643,348 Michigan State Hospital Finance Authority, Hospital Revenue Refunding Bonds (Oakwood Obligated Group), Series A, 5%, 7/15/25 2,000 1,546,500 Michigan State Hospital Finance Authority, Revenue Refunding Bonds (Henry Ford Health System), Series A, 5.25%, 11/15/46 7,950 5,423,093 BlackRock MuniVest Fund, Inc. Schedule of Investments November 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par State Municipal Bonds (000) Value ---------------------------------------------------------------------------------------------------------------------------------- Michigan State Hospital Finance Authority, Revenue Refunding Bonds (McLaren Health Care Corporation), 5.75%, 5/15/38 $ 7,285 $ 6,391,568 Michigan State Hospital Finance Authority, Revenue Refunding Bonds (Sinai Hospital), 6.70%, 1/01/26 1,000 787,850 Michigan State Hospital Finance Authority, Revenue Refunding Bonds (Trinity Health Credit Group), Series A, 6%, 12/01/20 4,200 4,189,332 ------------- 31,792,504 ---------------------------------------------------------------------------------------------------------------------------------- Minnesota - 2.1% Minneapolis, Minnesota, Health Care System Revenue Bonds (Allina Health System), Series A, 5.75%, 11/15/12 (a) 7,235 8,083,738 Saint Cloud, Minnesota, Health Care Revenue Refunding Bonds (Saint Cloud Hospital Obligation Group), Series A, 6.25%, 5/01/17 (k) 1,405 1,477,779 ------------- 9,561,517 ---------------------------------------------------------------------------------------------------------------------------------- Mississippi - 6.4% Lowndes County, Mississippi, Solid Waste Disposal and PCR, Refunding (Weyerhaeuser Company Project), Series A, 6.80%, 4/01/22 9,160 7,392,486 Lowndes County, Mississippi, Solid Waste Disposal and PCR, Refunding (Weyerhaeuser Company Project), Series B, 6.70%, 4/01/22 4,500 3,597,795 Mississippi Business Finance Corporation, Mississippi, PCR, Refunding (System Energy Resources, Inc. Project), 5.875%, 4/01/22 20,705 16,365,232 Mississippi Business Finance Corporation, Mississippi, PCR, Refunding (System Energy Resources, Inc. Project), 5.90%, 5/01/22 2,250 1,781,370 ------------- 29,136,883 ---------------------------------------------------------------------------------------------------------------------------------- Missouri - 0.5% Missouri State Development Finance Board, Infrastructure Facilities Revenue Refunding Bonds (Branson), Series A, 5.50%, 12/01/32 2,600 1,880,918 Missouri State Housing Development Commission, S/F Mortgage Revenue Bonds (Homeowner Loan), AMT, Series A, 7.50%, 3/01/31 (h)(i) 185 195,358 ------------- 2,076,276 ---------------------------------------------------------------------------------------------------------------------------------- Montana - 1.3% Forsyth, Montana, PCR, Refunding (Portland General Electric Company), Series A, 5.20%, 5/01/33 6,000 6,026,280 ---------------------------------------------------------------------------------------------------------------------------------- New Hampshire - New Hampshire Health and Education Facilities Authority, Revenue 0.5% Refunding Bonds (Elliot Hospital), Series B, 5.60%, 10/01/22 2,675 2,469,105 ---------------------------------------------------------------------------------------------------------------------------------- New Jersey - 5.1% New Jersey EDA, Cigarette Tax Revenue Bonds, 5.50%, 6/15/24 9,080 6,690,416 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.75%, 6/15/29 2,885 2,076,623 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.75%, 6/15/34 8,695 6,047,720 New Jersey State Housing and Mortgage Finance Agency Revenue Bonds, Series AA, 6.375%, 10/01/28 1,555 1,602,381 Tobacco Settlement Financing Corporation of New Jersey, Asset-Backed Revenue Bonds, 7%, 6/01/13 (a) 5,980 7,056,280 ------------- 23,473,420 ---------------------------------------------------------------------------------------------------------------------------------- New York - 7.9% Metropolitan Transportation Authority, New York, Revenue Bonds, Series C, 6.25%, 11/15/23 3,245 3,384,178 Metropolitan Transportation Authority, New York, Revenue Bonds, Series C, 6.50%, 11/15/28 14,925 15,523,493 New York City, New York, City Transitional Finance Authority, Future Tax Secured Revenue Bonds, Series B, 6.25%, 5/15/10 (a) 5,000 5,382,750 BlackRock MuniVest Fund, Inc. Schedule of Investments November 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par State Municipal Bonds (000) Value ---------------------------------------------------------------------------------------------------------------------------------- New York City, New York, GO, Refunding, Series A, 6.375%, 5/15/14 (j) $ 965 $ 1,020,854 New York State Dormitory Authority, State University Educational Facilities Revenue Refunding Bonds, Series 1989, 6%, 5/15/10 (a)(f) 10,000 10,731,000 ------------- 36,042,275 ---------------------------------------------------------------------------------------------------------------------------------- North Carolina - 3.0% Gaston County, North Carolina, Industrial Facilities and Pollution Control Financing Authority, Revenue Bonds (National Gypsum Company Project), AMT, 5.75%, 8/01/35 4,105 2,226,634 North Carolina Medical Care Commission, Health Care Facilities, Revenue Refunding Bonds (University Health System), Series D, 6.25%, 12/01/33 12,000 11,376,840 ------------- 13,603,474 ---------------------------------------------------------------------------------------------------------------------------------- Ohio - 4.1% Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Bonds, Series A-2, 6.50%, 6/01/47 27,500 18,761,325 ---------------------------------------------------------------------------------------------------------------------------------- Pennsylvania - 3.2% Pennsylvania State Higher Education Assistance Agency Revenue Bonds, Capital Acquisition, 6.125%, 12/15/10 (a)(f) 2,440 2,645,912 Philadelphia, Pennsylvania, Authority for Industrial Development, Senior Living Revenue Bonds (Arbor House, Inc. Project), Series E, 6.10%, 7/01/33 1,000 767,330 Philadelphia, Pennsylvania, Authority for Industrial Development, Senior Living Revenue Bonds (Rieder House Project), Series A, 6.10%, 7/01/33 1,355 1,039,732 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Bonds (Guthrie Healthcare System), Series B, 7.125%, 12/01/11 (a) 6,780 8,170,442 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Refunding Bonds (Guthrie Healthcare System), Series A, 6.25%, 12/01/11 (a) 1,340 1,501,041 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Refunding Bonds (Guthrie Healthcare System), Series A, 6.25%, 12/01/18 410 411,292 ------------- 14,535,749 ---------------------------------------------------------------------------------------------------------------------------------- South Carolina - 0.9% Georgetown County, South Carolina, Environmental Improvement Revenue Refunding Bonds (International Paper Company Project), AMT, Series A, 5.55%, 12/01/29 1,000 592,460 Richland County, South Carolina, Environmental Improvement Revenue Refunding Bonds (International Paper), AMT, 6.10%, 4/01/23 5,000 3,557,050 ------------- 4,149,510 ---------------------------------------------------------------------------------------------------------------------------------- South Dakota - 0.4% South Dakota State Health and Educational Facilities Authority Revenue Bonds (Sanford Health), 5%, 11/01/40 2,605 2,052,792 ---------------------------------------------------------------------------------------------------------------------------------- Tennessee - 0.6% Shelby County, Tennessee, Health, Educational and Housing Facility Board, Hospital Revenue Refunding Bonds (Methodist Healthcare), 6.50%, 9/01/12 (a) 2,370 2,686,324 ---------------------------------------------------------------------------------------------------------------------------------- Texas - 17.3% Austin, Texas, Convention Center Revenue Bonds (Convention Enterprises Inc.), First Tier, Series A, 6.70%, 1/01/11 (a) 5,000 5,435,900 Brazos River Authority, Texas, PCR, Refunding (TXU Energy Company LLC Project), AMT, Series A, 7.70%, 4/01/33 3,055 2,093,011 Brazos River, Texas, Harbor Navigation District, Brazoria County Environmental Revenue Refunding Bonds (Dow Chemical Company Project), AMT, Series A-7, 6.625%, 5/15/33 11,460 9,095,344 Dallas-Fort Worth, Texas, International Airport, Joint Revenue Bonds, AMT, Series B, 6.25%, 11/01/28 (f) 4,500 4,031,325 BlackRock MuniVest Fund, Inc. Schedule of Investments November 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par State Municipal Bonds (000) Value ---------------------------------------------------------------------------------------------------------------------------------- Dallas-Fort Worth, Texas, International Airport, Joint Revenue Bonds, AMT, Series C, 6.25%, 11/01/28 (f) $ 1,500 $ 1,343,775 Dallas-Fort Worth, Texas, International Airport, Joint Revenue Refunding Bonds, AMT, Sub-Series A-2, 6.10%, 11/01/24 (f) 1,000 905,280 Gregg County, Texas, Health Facilities Development Corporation, Hospital Revenue Bonds (Good Shepherd Medical Center Project), 6.875%, 10/01/10 (a)(m) 3,000 3,300,330 Guadalupe-Blanco River Authority, Texas, Sewage and Solid Waste Disposal Facility Revenue Bonds (E. I. du Pont de Nemours and Company Project), AMT, 6.40%, 4/01/26 10,250 10,028,600 Gulf Coast Waste Disposal Authority, Texas, Revenue Refunding Bonds (International Paper Company), AMT, Series A, 6.10%, 8/01/24 6,000 4,158,660 Harris County-Houston Sports Authority, Texas, Revenue Refunding Bonds, Senior Lien, Series G, 5.75%, 11/15/20 (f) 5,500 5,299,195 Harris County, Texas, Health Facilities Development Corporation, Hospital Revenue Refunding Bonds (Memorial Hermann Healthcare System), Series B, 7.125%, 12/01/31 3,500 3,443,650 Harris County, Texas, Health Facilities Development Corporation, Hospital Revenue Refunding Bonds (Memorial Hermann Healthcare System), Series B, 7.25%, 12/01/35 5,400 5,411,340 Houston, Texas, Industrial Development Corporation Revenue Bonds (Air Cargo), AMT, 6.375%, 1/01/23 1,790 1,486,559 Judson, Texas, Independent School District, School Building, GO, 5%, 2/01/37 (n) 3,000 2,668,590 Mansfield, Texas, Independent School District, GO, Refunding, 6.625%, 2/15/15 155 162,535 Matagorda County, Texas, Navigation District Number 1, Revenue Refunding Bonds (Centerpoint Energy Project), 5.60%, 3/01/27 9,355 6,634,753 Midway, Texas, Independent School District, GO, Refunding, 6.125%, 8/15/14 5,225 5,514,570 Port Corpus Christi, Texas, Revenue Refunding Bonds (Celanese Project), Series A, 6.45%, 11/01/30 2,700 2,007,018 Red River Authority, Texas, PCR, Refunding (Celanese Project), AMT, Series B, 6.70%, 11/01/30 5,000 3,756,100 Texas State University, System Financing Revenue Refunding Bonds, 5.25%, 3/15/27 2,450 2,418,616 ------------- 79,195,151 ---------------------------------------------------------------------------------------------------------------------------------- Vermont - 0.2% Vermont Educational and Health Buildings Financing Agency, Developmental and Mental Health Revenue Bonds (Howard Center for Human Services), Series A, 6.375%, 6/15/22 1,000 908,430 ---------------------------------------------------------------------------------------------------------------------------------- Virginia - 1.4% Chesterfield County, Virginia, IDA, PCR (Virginia Electric and Power Company), Series A, 5.875%, 6/01/17 1,425 1,428,121 Fairfax County, Virginia, EDA, Residential Care Facilities, Mortgage Revenue Refunding Bonds (Goodwin House, Inc.), 5.125%, 10/01/37 2,000 1,173,580 BlackRock MuniVest Fund, Inc. Schedule of Investments November 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par State Municipal Bonds (000) Value ---------------------------------------------------------------------------------------------------------------------------------- Fairfax County, Virginia, EDA, Residential Care Facilities, Mortgage Revenue Refunding Bonds (Goodwin House, Inc.), 5.125%, 10/01/42 $ 7,015 $ 4,010,195 ------------- 6,611,896 ---------------------------------------------------------------------------------------------------------------------------------- Washington - 7.2% Energy Northwest, Washington, Electric Revenue Refunding Bonds (Columbia Generating), Series B, 6%, 7/01/18 (l) 7,015 7,513,696 Seattle, Washington, Housing Authority Revenue Bonds (Replacement Housing Project), 6.125%, 12/01/32 2,305 1,788,634 Washington State Health Care Facilities Authority, Revenue Refunding Bonds (Catholic Health Initiatives), Series D, 6.375%, 10/01/36 7,000 6,579,930 Washington State Public Power Supply System, Revenue Refunding Bonds (Nuclear Project Number 1), Series B, 7.125%, 7/01/16 14,320 17,234,836 ------------- 33,117,096 ---------------------------------------------------------------------------------------------------------------------------------- Wisconsin - 3.0% Milwaukee, Wisconsin, Revenue Bonds (Air Cargo), AMT, 6.50%, 1/01/25 1,755 1,456,071 Wisconsin Housing and EDA, Home Ownership Revenue Refunding Bonds, AMT, Series A, 5.625%, 3/01/31 6,000 5,123,460 Wisconsin State Health and Educational Facilities Authority, Mortgage Revenue Bonds (Hudson Memorial Hospital), 5.70%, 1/15/29 (o) 4,500 4,223,250 Wisconsin State Health and Educational Facilities Authority Revenue Bonds (SynergyHealth, Inc.), 6%, 11/15/32 3,040 2,825,285 ------------- 13,628,066 ---------------------------------------------------------------------------------------------------------------------------------- U.S. Virgin Islands - Virgin Islands Government Refinery Facilities, Revenue Refunding Bonds 1.3% (Hovensa Coker Project), AMT, 6.50%, 7/01/21 8,000 6,131,840 ---------------------------------------------------------------------------------------------------------------------------------- Total Municipal Bonds - 134.5% 616,098,041 ---------------------------------------------------------------------------------------------------------------------------------- Municipal Bonds Transferred to Tender Option Bond Trusts (p) ---------------------------------------------------------------------------------------------------------------------------------- Connecticut - 2.5% Connecticut State Health and Educational Facilities Authority Revenue Bonds (Yale University), Series Z-3, 5.05%, 7/01/42 12,000 11,387,040 ---------------------------------------------------------------------------------------------------------------------------------- Florida - 1.6% Miami-Dade County, Florida, Aviation Revenue Refunding Bonds (Miami International Airport), AMT, 5%, 10/01/40 (q) 10,000 7,122,900 ---------------------------------------------------------------------------------------------------------------------------------- Illinois - 7.0% Chicago, Illinois, Water Revenue Refunding Bonds, Second Lien, 5.25%, 11/01/33 (k) 1,330 1,220,620 Kane and De Kalb Counties, Illinois, Community Unit School District Number 302, GO, 5.75%, 2/01/18 (j) 2,975 3,376,060 Kane and De Kalb Counties, Illinois, Community Unit School District Number 302, GO, 5.75%, 2/01/19 (j) 2,710 3,075,335 Kane and De Kalb Counties, Illinois, Community Unit School District Number 302, GO, 5.75%, 2/01/21 (j) 4,775 5,418,718 Metropolitan Pier and Exposition Authority, Illinois, Dedicated State Tax Revenue Refunding Bonds (McCormick Place Expansion Project), Series B, 5.75%, 6/15/23 (f) 18,553 19,032,226 ------------- 32,122,959 ---------------------------------------------------------------------------------------------------------------------------------- Maryland - 0.9% Maryland State Transportation Authority, Transportation Facilities Projects Revenue Bonds, 5%, 7/01/41 (k) 4,710 4,347,942 ---------------------------------------------------------------------------------------------------------------------------------- Massachusetts - 4.1% Massachusetts State School Building Authority, Dedicated Sales Tax Revenue Bonds, Series A, 5%, 8/15/30 (k) 20,000 18,958,200 ---------------------------------------------------------------------------------------------------------------------------------- BlackRock MuniVest Fund, Inc. Schedule of Investments November 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) Municipal Bonds Transferred to Par State Tender Option Bond Trusts (p) (000) Value ---------------------------------------------------------------------------------------------------------------------------------- New York - 4.8% New York City, New York, City Municipal Water Finance Authority, Water and Sewer System, Revenue Refunding Bonds, Series DD, 5%, 6/15/37 $ 24,199 $ 22,013,185 ---------------------------------------------------------------------------------------------------------------------------------- North Carolina - 2.6% North Carolina Capital Facilities Finance Agency, Revenue Refunding Bonds (Duke University Project), Series A, 5%, 10/01/41 12,678 11,736,703 ---------------------------------------------------------------------------------------------------------------------------------- Ohio - 0.8% Ohio State Higher Educational Facilities Commission, Hospital Revenue Bonds (University Hospitals Health System), Series A, 5.25%, 01/01/33 4,400 3,782,416 ---------------------------------------------------------------------------------------------------------------------------------- Texas - 7.5% Harris County, Texas, Health Facilities Development Corporation Revenue Refunding Bonds (School Health Care System), Series B, 5.75%, 7/01/27 (c) 20,970 22,411,058 Texas State Department of Housing and Community Affairs, S/F Mortgage Revenue Bonds, AMT, Series B, 5.25%, 9/01/32 (g)(h)(i) 8,503 6,833,244 Texas State University, System Financing Revenue Refunding Bonds, 5%, 3/15/30 (k) 5,667 5,265,988 ------------- 34,510,290 ---------------------------------------------------------------------------------------------------------------------------------- Washington - 10.9% Central Puget Sound Regional Transportation Authority, Washington, Sales and Use Tax Revenue Bonds, Series A, 5%, 11/01/32 (k) 14,007 12,836,924 Central Puget Sound Regional Transportation Authority, Washington, Sales and Use Tax Revenue Bonds, Series A, 5%, 11/01/34 5,000 4,511,525 Central Puget Sound Regional Transportation Authority, Washington, Sales and Use Tax Revenue Bonds, Series A, 5%, 11/01/36 6,000 5,413,830 Energy Northwest, Washington, Electric Revenue Refunding Bonds (Columbia Generating), Series A, 5.75%, 7/01/18 (f) 10,660 11,310,900 Energy Northwest, Washington, Electric Revenue Refunding Bonds (Project Number 1), Series B, 6%, 7/01/17 (f) 14,700 15,788,388 ------------- 49,861,567 ---------------------------------------------------------------------------------------------------------------------------------- Total Municipal Bonds Transferred to Tender Option Bond Trusts - 42.7% 195,843,202 ---------------------------------------------------------------------------------------------------------------------------------- Total Long-Term Investments (Cost - $891,646,838) - 177.2% 811,941,243 ---------------------------------------------------------------------------------------------------------------------------------- Short-Term Securities Shares ---------------------------------------------------------------------------------------------------------------------------------- Merrill Lynch Institutional Tax-Exempt Fund, 1.08% (r)(s) 46,600,000 46,600,000 ---------------------------------------------------------------------------------------------------------------------------------- Total Short-Term Securities (Cost - $46,600,000) - 10.2% 46,600,000 ---------------------------------------------------------------------------------------------------------------------------------- Total Investments (Cost - $938,246,838*) - 187.4% 858,541,243 Liabilities in Excess of Other Assets - (2.6)% (11,832,159) Liability for Trust Certificates, Including Interest Expense and Fees Payable - (24.6)% (112,663,250) Preferred Shares, at Redemption Value - (60.2)% (275,906,843) ------------- Net Assets Applicable to Common Shares - 100.0% $ 458,138,991 ============= * The cost and unrealized appreciation (depreciation) of investments as of November 30, 2008, as computed for federal income tax purposes, were as follows: Aggregate cost $ 827,102,393 ============= Gross unrealized appreciation $ 23,784,173 Gross unrealized depreciation (104,028,542) ------------- Net unrealized depreciation $ (80,244,369) ============= BlackRock MuniVest Fund, Inc. Schedule of Investments November 30, 2008 (Unaudited) (a) U.S. government securities, held in escrow, are used to pay interest on this security, as well as to retire the bond in full at the date indicated, typically at a premium to par. (b) Variable rate security. Rate shown is as of report date. Maturity shown is the final maturity date. (c) Security is collateralized by Municipal or U.S. Treasury Obligations. (d) Non-income producing security. (e) Issuer filed for bankruptcy and/or is in default of interest payments. (f) MBIA Insured. (g) FHLMC Collateralized. (h) FNMA Collateralized. (i) GNMA Collateralized. (j) FGIC Insured. (k) FSA Insured. (l) AMBAC Insured. (m) Radian Insured. (n) Assured Guaranty Insured. (o) FHA Insured. (p) Securities represent bonds transferred to a tender option bond trust in exchange for which the Fund acquired residual interest certificates. These securities serve as collateral in a financing transaction. (q) XL Capital Insured. (r) 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: -------------------------------------------------------------------------- Affiliate Net Activity Income -------------------------------------------------------------------------- Merrill Lynch Institutional Tax-Exempt Fund 41,169,026 $ 209,813 -------------------------------------------------------------------------- (s) Represents the current yield as of report date. BlackRock MuniVest Fund, Inc. Schedule of Investments November 30, 2008 (Unaudited) o Effective September 1, 2008, the Fund adopted Financial Accounting Standards Board Statement of Financial Accounting Standards No. 157, "Fair Value Measurements" ("FAS 157"). FAS 157 clarifies the definition of fair value, establishes a framework for measuring fair values and requires additional disclosures about the use of fair value measurements. Various inputs are used in determining the fair value of investments, which are as follows: o Level 1 - price quotations in active markets/exchanges for identical securities o Level 2 - other observable inputs (including, but not limited to: quoted prices for similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks, and default rates) or other market-corroborated inputs) o Level 3 - unobservable inputs based on the best information available in the circumstance, to the extent observable inputs are not available (including the Fund's own assumption used in determining the fair value of investments) The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities. For information about the Fund's policy regarding valuation of investments and other significant accounting policies, please refer to the Fund's most recent financial statements as contained in its annual report. The following table summarizes the inputs used as of November 30, 2008 in determining the fair valuation of the Fund's investments: -------------------------------------------------------------------- Valuation Investments in Inputs Securities -------------------------------------------------------------------- Level 1 $ 46,600,000 Level 2 811,941,243 Level 3 -- -------------------------------------------------------------------- Total $ 858,541,243 ============= 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 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) 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 MuniVest Fund, Inc. By: /s/ Donald C. Burke -------------------------------- Donald C. Burke Chief Executive Officer of BlackRock MuniVest Fund, Inc. Date: January 20, 2009 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/ Donald C. Burke -------------------------------- Donald C. Burke Chief Executive Officer (principal executive officer) of BlackRock MuniVest Fund, Inc. Date: January 20, 2009 By: /s/ Neal J. Andrews -------------------------------- Neal J. Andrews Chief Financial Officer (principal financial officer) of BlackRock MuniVest Fund, Inc. Date: January 20, 2009