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 811-08603 Name of Fund: BlackRock Debt Strategies Fund, Inc. (DSU) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: Donald C. Burke, Chief Executive Officer, BlackRock Debt Strategies 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: 02/28/2009 Date of reporting period: 03/01/2008 - 05/31/2008 Item 1 - Schedule of Investments BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par Industry Corporate Bonds (000) Value ----------------------------------------------------------------------------------------------------------------------------------- Aerospace & Defense - 1.3% Alliant Techsystems, Inc., 3%, 8/15/24 (a)(b) $ 5,000 $ 7,631,250 ----------------------------------------------------------------------------------------------------------------------------------- Auto Components - 0.9% Allison Transmission, 11.25%, 11/01/15 (b)(c) 1,730 1,574,300 The Goodyear Tire & Rubber Co., 8.625%, 12/01/11 2 2,110 Lear Corp., 8.75%, 12/01/16 1,020 925,650 Metaldyne Corp., 11%, 6/15/12 9,350 3,085,500 Venture Holdings Co. LLC, 12%, 6/01/09 (d) (n) 4,450 0 Venture Holdings Co. LLC Series B, 9.50%, 7/01/05 (d)(e)(n) 1,800 180 ------------- 5,587,740 ----------------------------------------------------------------------------------------------------------------------------------- Building Products - 1.5% CPG International I, Inc., 9.904%, 7/01/12 (f) 7,500 6,225,000 CPG International I, Inc., 10.50%, 7/01/13 1,300 1,079,000 Masonite International Corp., 11%, 4/06/15 2,270 1,520,900 ------------- 8,824,900 ----------------------------------------------------------------------------------------------------------------------------------- Capital Markets - 1.8% E*Trade Financial Corp., 12.50%, 11/30/17 (b) 10,000 10,900,000 ----------------------------------------------------------------------------------------------------------------------------------- Chemicals - 6.0% American Pacific Corp., 9%, 2/01/15 1,490 1,467,650 ArCo Chemical Co., 9.80%, 2/01/20 3,550 2,982,000 GEO Specialty Chemicals Inc., 7.50%, 3/31/15 (a) 3,772 2,824,350 GEO Specialty Chemicals, Inc., 11.283%, 12/31/09 (a) 6,415 4,803,231 Hanna (M.A.) Co., 6.89%, 9/22/08 2,500 2,500,000 Hexion U.S. Finance Corp., 7.176%, 11/15/14 (f) 5,100 4,845,000 MacDermid, Inc., 9.50%, 4/15/17 (b) 6,360 6,169,200 NOVA Chemicals Corp., 5.953%, 11/15/13 (f) 12,305 10,582,300 ------------- 36,173,731 ----------------------------------------------------------------------------------------------------------------------------------- Commercial Banks - 0.2% Investcorp SA, 7.54%, 10/21/08 1,500 1,500,918 ----------------------------------------------------------------------------------------------------------------------------------- Commercial Services & PNA Intermediate Holding Corp., 9.676%, Supplies - 1.6% 2/15/13 (c)(f) 1,090 940,125 Sally Holdings LLC, 10.50%, 11/15/16 3,043 2,966,925 US Investigations Services, Inc., 10.50%, 11/01/15 (b) 3,400 3,077,000 West Corp., 11%, 10/15/16 3,270 2,893,950 ------------- 9,878,000 ----------------------------------------------------------------------------------------------------------------------------------- Construction Materials - 1.8% Nortek Holdings, Inc., 10%, 12/01/13 (b) 6,830 6,787,313 Nortek, Inc., 8.50%, 9/01/14 5,850 4,095,000 ------------- 10,882,313 ----------------------------------------------------------------------------------------------------------------------------------- Containers & Packaging - 4.6% Berry Plastics Holding Corp., 6.651%, 9/15/14 (f) 375 316,875 Berry Plastics Holding Corp., 8.875%, 9/15/14 665 608,475 Graphic Packaging International Corp., 9.50%, 8/15/13 705 710,288 Packaging Dynamics Finance Corp., 10%, 5/01/16 (b) 6,215 4,101,900 Smurfit Kappa Funding Plc, 7.75%, 4/01/15 13,625 12,364,688 BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par Industry Corporate Bonds (000) Value ----------------------------------------------------------------------------------------------------------------------------------- Smurfit-Stone Container Enterprises, Inc., 8.375%, 7/01/12 $ 1,600 $ 1,488,000 Smurfit-Stone Container Enterprises, Inc., 8%, 3/15/17 2,600 2,242,500 Wise Metals Group LLC, 10.25%, 5/15/12 6,325 5,518,563 ------------- 27,351,289 ----------------------------------------------------------------------------------------------------------------------------------- Distributors - 0.3% Buhrmann US, Inc., 7.875%, 3/01/15 2,000 1,892,500 ----------------------------------------------------------------------------------------------------------------------------------- Diversified Consumer NBC Acquisition Corp., 11%, 3/15/13 (m) 3,875 3,410,000 Services - 0.6% ----------------------------------------------------------------------------------------------------------------------------------- Diversified Financial Archimedes Funding III Ltd., 5.50%, 11/29/11 (b) 5,744 2,871,845 Services - 1.3% Ford Motor Credit Co. LLC, 5.80%, 1/12/09 760 745,666 Ford Motor Credit Co. LLC, 5.46%, 1/13/12 (f) 2,680 2,264,571 Ford Motor Credit Co. LLC, 7.163%, 4/15/12 (f) 750 737,796 Preferred Term Securities VI, Ltd. (b) 35 1,330,000 ------------- 7,949,878 ----------------------------------------------------------------------------------------------------------------------------------- Diversified Telecommunication Qwest Corp., 6.026%, 6/15/13 (f) 2,675 2,594,750 Services - 0.4% ----------------------------------------------------------------------------------------------------------------------------------- Electric Utilities - 0.9% NSG Holdings LLC, 7.75%, 12/15/25 (b) 5,380 5,312,750 ----------------------------------------------------------------------------------------------------------------------------------- Electronic Equipment & Muzak Holdings, LLC, 13%, 3/15/10 (m) 2,675 1,350,875 Instruments - 1.1% NXP BV, 5.463%, 10/15/13 (f) 5,520 5,050,800 ------------- 6,401,675 ----------------------------------------------------------------------------------------------------------------------------------- Energy Equipment & Compagnie Generale de Geophysique-Veritas, 7.50%, 5/15/15 245 248,063 Services - 2.4% Ocean RIG ASA, 6.791%, 4/04/11 (f) 8,000 8,000,000 SemGroup LP, 8.75%, 11/15/15 (b) 6,300 6,142,500 ------------- 14,390,563 ----------------------------------------------------------------------------------------------------------------------------------- Food & Staples Retailing - 0.2% Rite Aid Corp., 9.375%, 12/15/15 1,910 1,489,800 ----------------------------------------------------------------------------------------------------------------------------------- Gas Utilities - 0.5% El Paso Performance-Linked Trust, 7.75%, 7/15/11 (b) 2,900 2,983,172 ----------------------------------------------------------------------------------------------------------------------------------- Health Care Equipment & LVB Acquisition Merger Sub, Inc., 10%, 10/15/17 (b) 1,200 1,287,000 Supplies - 3.2% LVB Acquisition Merger Sub, Inc., 10.375%, 10/15/17 (b)(c) 1,200 1,275,000 LVB Acquisition Merger Sub, Inc., 11.625%, 10/15/17 (b) 1,600 1,696,000 ReAble Therapeutics Finance LLC, 10.875%, 11/15/14 (b) 15,000 15,000,000 ------------- 19,258,000 ----------------------------------------------------------------------------------------------------------------------------------- Health Care Providers & Community Health Systems, Inc. Series WI, 8.875%, 7/15/15 2,575 2,655,469 Services - 0.6% Universal Hospital Services, Inc., 6.303%, 6/01/15 (f) 930 881,175 ------------- 3,536,644 ----------------------------------------------------------------------------------------------------------------------------------- Hotels, Restaurants & HRP Myrtle Beach Operations LLC, 7.383%, 4/01/12 (b)(f) 5,000 4,400,000 Leisure - 7.1% BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par Industry Corporate Bonds (000) Value ----------------------------------------------------------------------------------------------------------------------------------- HRP Myrtle Beach Operations LLC, 12.50%, 4/01/13 (b) $ 5,000 $ 3,750,000 HRP Myrtle Beach Holdings LLC, 14.50%, 4/01/14 (b)(c) 6,650 4,023,558 Harrah's Operating Co., Inc., 10.75%, 2/01/16 (b) 10,131 8,788,643 Harrah's Operating Co., Inc., 10.75%, 2/01/18 (b)(c) 4,260 3,211,911 Little Traverse Bay Bands of Odawa Indians, 10.25%, 2/15/14 (b) 2,560 2,393,600 Pinnacle Entertainment, Inc., 7.50%, 6/15/15 (b) 1,620 1,336,500 Shingle Springs Tribal Gaming Authority, 9.375%, 6/15/15 (b) 1,370 1,195,325 Snoqualmie Entertainment Authority, 6.936%, 2/01/14 (b)(f) 1,015 786,625 Station Casinos, Inc., 7.75%, 8/15/16 3,400 2,830,500 Travelport LLC, 7.307%, 9/01/14 (f) 2,600 2,210,000 Tropicana Entertainment LLC Series WI, 9.625%, 12/15/14 (d) 830 464,800 Tunica-Biloxi Gaming Authority, 9%, 11/15/15 (b) 3,000 2,925,000 Universal City Florida Holding Co. I, 7.623%, 5/01/10 (f) 4,375 4,298,438 ------------- 42,614,900 ----------------------------------------------------------------------------------------------------------------------------------- Household Durables - 0.6% Jarden Corp., 7.50%, 5/01/17 1,910 1,704,675 Stanley-Martin Communities LLC, 9.75%, 8/15/15 2,250 1,012,500 The Yankee Candle Co., Inc., 9.75%, 2/15/17 920 717,600 ------------- 3,434,775 ----------------------------------------------------------------------------------------------------------------------------------- Independent Power Producers & Energy Future Holding Corp., 11.25%, 11/01/17 (b)(c) 3,200 3,296,000 Energy Traders - 1.0% Texas Competitive Electric Holdings Co. LLC, 10.50%, 11/01/16 (b)(c) 2,400 2,436,000 ------------- 5,732,000 ----------------------------------------------------------------------------------------------------------------------------------- Insurance - 0.6% Alliant Holdings I, Inc., 11%, 5/01/15 (b) 2,500 2,162,500 USI Holdings Corp., 6.551%, 11/15/14 (b)(f) 1,630 1,312,150 ------------- 3,474,650 ----------------------------------------------------------------------------------------------------------------------------------- Machinery - 1.0% Esco Corp., 6.651%, 12/15/13 (b)(f) 3,070 2,824,400 RBS Global, Inc., 8.875%, 9/01/16 1,685 1,626,025 Titan International, Inc., 8%, 1/15/12 1,530 1,541,475 ------------- 5,991,900 ----------------------------------------------------------------------------------------------------------------------------------- Marine - 0.3% Navios Maritime Holdings, Inc., 9.50%, 12/15/14 465 478,950 BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par Industry Corporate Bonds (000) Value ----------------------------------------------------------------------------------------------------------------------------------- Titan Petrochemicals Group Ltd., 8.50%, 3/18/12 (b) $ 1,760 $ 1,144,000 ------------- 1,622,950 ----------------------------------------------------------------------------------------------------------------------------------- Media - 7.4% Affinion Group, Inc., 10.125%, 10/15/13 280 286,300 Affinion Group, Inc., 11.50%, 10/15/15 800 813,000 Cablevision Systems Corp. Series B, 7.133%, 4/01/09 (f) 5,950 5,979,750 Cadmus Communications Corp., 8.375%, 6/15/14 2,000 1,700,000 Canadian Satellite Radio Holdings, Inc., 12.75%, 2/15/14 5,000 4,675,000 Charter Communications Holdings LLC, 10%, 4/01/09 3,750 3,665,625 Charter Communications Holdings LLC, 11.125%, 1/15/11 1,319 896,920 Charter Communications Holdings LLC, 10%, 5/15/11 1,978 1,384,600 Mediacom LLC, 9.50%, 1/15/13 3,875 3,700,625 Network Communications, Inc., 10.75%, 12/01/13 20 15,300 Nielsen Finance LLC, 10%, 8/01/14 (b) 4,110 4,238,438 Paxson Communications Corp., 5.963%, 1/15/12 (b)(f) 2,800 2,338,000 Sinclair Broadcast Group, Inc. Class A, 4.875%, 7/15/18 (a)(m) 3,235 2,972,156 Sirius Satellite Radio, Inc., 9.625%, 8/01/13 5,795 4,969,213 TL Acquisitions, Inc., 10.50%, 1/15/15 (b) 5,230 4,759,300 Windstream Regatta Holdings, Inc., 11%, 12/01/17 (b) 2,665 1,785,550 ------------- 44,179,777 ----------------------------------------------------------------------------------------------------------------------------------- Metals & Mining - 2.4% Aleris International, Inc., 9%, 12/15/14 (c) 1,410 1,152,675 Aleris International, Inc., 10%, 12/15/16 1,500 1,076,250 Indalex Holding Corp. Series B, 11.50%, 2/01/14 2,854 1,555,430 RathGibson, Inc., 11.25%, 2/15/14 4,550 4,481,750 Ryerson, Inc., 10.248%, 11/01/14 (b)(f) 6,720 6,199,200 ------------- 14,465,305 ----------------------------------------------------------------------------------------------------------------------------------- Oil, Gas & Consumable Chaparral Energy, Inc., 8.50%, 12/01/15 1,410 1,247,850 Fuels - 0.9% Compton Petroleum Finance Corp., 7.625%, 12/01/13 2,220 2,172,825 SandRidge Energy, Inc., 6.416%, 4/01/14 (b)(f) 2,000 1,960,000 ------------- 5,380,675 ----------------------------------------------------------------------------------------------------------------------------------- Paper & Forest Products - 7.1% Abitibi-Consolidated, Inc., 6.276%, 6/15/11 (f) 6,500 2,925,000 BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par Industry Corporate Bonds (000) Value ----------------------------------------------------------------------------------------------------------------------------------- Ainsworth Lumber Co. Ltd., 6.551%, 10/01/10 (f) $ 10,609 $ 5,092,320 Ainsworth Lumber Co. Ltd., 7.25%, 10/01/12 866 389,700 Ainsworth Lumber Co. Ltd., 6.801%, 4/01/13 (f) 9,830 5,013,300 Bowater, Inc., 9%, 8/01/09 640 579,200 Bowater, Inc., 5.776%, 3/15/10 (f) 7,600 6,004,000 Domtar Corp., 7.125%, 8/15/15 3,775 3,605,125 NewPage Corp., 9.123%, 5/01/12 (f) 8,000 8,360,000 NewPage Corp., 10%, 5/01/12 (b) 2,720 2,896,800 NewPage Corp., 12%, 5/01/13 3,325 3,516,188 Verso Paper Holdings LLC Series B, 6.623%, 8/01/14 (f) 4,400 4,092,000 ------------- 42,473,633 ----------------------------------------------------------------------------------------------------------------------------------- Pharmaceuticals - 2.0% Angiotech Pharmaceuticals, Inc., 6.432%, 12/01/13 (f) 5,000 4,325,000 Elan Finance Plc, 6.676%, 11/15/11 (f) 4,825 4,535,500 Elan Finance Plc, 7.75%, 11/15/11 3,525 3,445,688 ------------- 12,306,188 ----------------------------------------------------------------------------------------------------------------------------------- Real Estate Investment Trusts RAIT Financial Trust, 6.875%, 4/15/27 (a)(b) 3,500 1,815,625 (REITs) - 0.3% ----------------------------------------------------------------------------------------------------------------------------------- Real Estate Management & Realogy Corp., 10.50%, 4/15/14 4,770 3,577,500 Development - 1.5% Realogy Corp., 11%, 4/15/14 (c) 6,190 4,023,500 Realogy Corp., 12.375%, 4/15/15 2,815 1,534,175 ------------- 9,135,175 ----------------------------------------------------------------------------------------------------------------------------------- Road & Rail - 0.3% Swift Transportation Co., Inc., 10.426%, 5/15/15 (b)(f) 5,060 1,669,800 ----------------------------------------------------------------------------------------------------------------------------------- Semiconductors & Semiconductor Freescale Semiconductor, Inc., 8.875%, 12/15/14 1,330 1,177,050 Equipment - 0.6% Spansion, Inc., 5.807%, 6/01/13 (b)(f) 3,370 2,460,100 ------------- 3,637,150 ----------------------------------------------------------------------------------------------------------------------------------- Software - 0.2% BMS Holdings, Inc., 9.954%, 2/15/12 (b)(c)(f) 2,567 1,540,006 ----------------------------------------------------------------------------------------------------------------------------------- Specialty Retail - 3.3% Buffets, Inc., 12.50%, 11/01/14 (d)(g) 1,440 28,800 General Nutrition Centers, Inc., 7.199%, 3/15/14 (c)(f) 5,560 4,832,881 General Nutrition Centers, Inc., 10.75%, 3/15/15 4,480 4,009,600 Michaels Stores, Inc., 10%, 11/01/14 2,240 2,072,000 Michaels Stores, Inc., 11.375%, 11/01/16 2,785 2,395,100 Movie Gallery, Inc., 11%, 5/01/12 (d) 21,700 5,425,000 United Auto Group, Inc., 7.75%, 12/15/16 1,380 1,283,400 ------------- 20,046,781 ----------------------------------------------------------------------------------------------------------------------------------- Wireless Telecommunication Centennial Communications Corp., 8.541%, 1/01/13 (f) 1,905 1,814,513 Services - 3.5% BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par Industry Corporate Bonds (000) Value ----------------------------------------------------------------------------------------------------------------------------------- Cricket Communications, Inc., 9.375%, 11/01/14 $ 2,760 $ 2,663,400 Cricket Communications, Inc., 9.375%, 11/01/14 (b) 920 887,800 Digicel Group Ltd., 8.875%, 1/15/15 (b) 3,560 3,266,300 Digicel Group Ltd., 9.125%, 1/15/15 (b)(c) 7,248 6,080,380 FiberTower Corp., 9%, 11/15/12 (a) 350 267,750 FiberTower Corp., 9%, 11/15/12 (a)(b) 2,150 1,644,750 iPCS, Inc., 4.998%, 5/01/13 (f) 1,250 1,075,000 Nordic Telephone Co. Holdings ApS, 8.875%, 5/01/16 (b) 2,600 2,561,000 Orascom Telecom Finance SCA, 7.875%, 2/08/14 (b) 755 722,913 ------------- 20,983,806 ----------------------------------------------------------------------------------------------------------------------------------- Total Corporate Bonds - 71.3% 428,454,969 ----------------------------------------------------------------------------------------------------------------------------------- Senior Floating Rate Loan Interests ----------------------------------------------------------------------------------------------------------------------------------- Aerospace & Defense - 0.2% Hawker Beechcraft Acquisition Co. LLC Letter of Credit, 4.73%, 3/31/14 27 24,896 Hawker Beechcraft Acquisition Co. LLC Term Loan B, 4.696% - 6.83%, 3/31/14 456 427,217 IAP Worldwide Services, Inc. Term Loan, 9.0%, 12/31/12 1,136 935,702 ------------- 1,387,815 ----------------------------------------------------------------------------------------------------------------------------------- Airlines - 0.6% Delta Air Lines, Inc. First Lien Term Loan, 2.55% - 6.83%, 5/15/12 1,980 1,680,171 US Airways Group, Inc. Term Loan B, 5.18%, 3/22/14 1,980 1,342,440 United Air Lines, Inc. Term Loan B, 4.69% - 4.94%, 1/30/14 1,068 816,207 ------------- 3,838,818 ----------------------------------------------------------------------------------------------------------------------------------- Auto Components - 2.6% Allison Transmission Term Loan B, 5.48% - 7.90%, 8/07/14 7,738 7,086,401 Delphi Automotive Systems Term Loan, 8.50%, 12/31/08 2,723 2,673,023 Goodyear Tire & Rubber Co., Second Lien Term Loan, 4.54%, 4/30/14 2,000 1,868,500 Intermet Corp. Letter of Credit, 7.94%, 11/08/10 1,685 1,487,176 Intermet Corp. Term Loan B, 7.99%, 11/08/10 1,163 1,025,933 Metaldyne Corp. Letter of Credit, 5.17% - 6.50%, 1/15/12 87 67,825 Metaldyne Corp. Term Loan B, 6.50%, 1/15/14 588 461,207 TRW Automotive, Inc. Term Loan B, 4.69% - 6.88%, 12/31/13 993 964,958 ------------- 15,635,023 ----------------------------------------------------------------------------------------------------------------------------------- BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par Industry Senior Floating Rate Loan Interests (000) Value ----------------------------------------------------------------------------------------------------------------------------------- Beverages - 0.2% Culligan International Second Lien Term Loan, 8.84%, 4/24/13 EUR 1,500 $ 1,166,807 ----------------------------------------------------------------------------------------------------------------------------------- Biotechnology - 0.2% Talecris Biotherapeutics, Inc. First Lien Term Loan, 6.57%, 11/13/14 $ 1,492 1,358,123 ----------------------------------------------------------------------------------------------------------------------------------- Building Products - 1.0% Building Material Corp. of America First Lien Term Loan, 5.688%, 2/22/14 3,000 2,681,250 Masonite International Term Loan, 4.63% - 5.046%, 4/06/13 1,873 1,775,062 Masonite International Term Loan B, 4.63% - 5.046%, 4/06/13 1,877 1,778,086 ------------- 6,234,398 ----------------------------------------------------------------------------------------------------------------------------------- Chemicals - 4.7% Flint Group Term Loan, 4.88%, 12/20/14 2,000 1,774,376 Huish Detergents, Inc. First Lien Term Loan, 4.70%, 4/15/14 2,985 2,643,316 Huish Detergents, Inc. Second Lien Term Loan, 6.95%, 10/15/14 1,250 1,050,000 Huntsman ICI Holdings Term Loan B, 6.615%, 8/16/12 1,636 1,582,845 Ineos Group Plc Term Loan B, 4.885%, 2/20/15 1,625 1,486,875 Ineos Group Plc Term Loan C, 5.385%, 2/20/14 1,625 1,486,875 PQ Corp. First Lien Term Loan, 6.15%, 5/29/15 2,000 1,875,000 PQ Corp. Second Lien Term Loan, 9.40%, 5/29/16 12,500 11,000,000 Rockwood Specialties Group, Inc. Tranche D Term Loan, 4.399%, 12/10/12 617 589,257 Solutia, Inc. Term Loan, 15.50%, 4/21/15 2,468 2,412,650 Wellman, Inc. Second Lien Term Loan, 11.66%, 2/10/10 (d) 10,000 2,300,000 ------------- 28,201,194 ----------------------------------------------------------------------------------------------------------------------------------- Commercial Services & ARAMARK Corp. Letter of Credit, 5.198%, Supplies - 5.2% 1/30/14 474 444,785 ARAMARK Corp. Term Loan B, 4.57%, 1/30/14 7,462 7,001,204 Euramax International Plc First Lien Term Loan, 7.813%, 6/29/12 2,436 2,094,792 Euramax International Plc Second Lien Term Loan, 12.646%, 6/29/13 3,750 2,212,500 Jason, Inc. Term Loan B, 7.25%, 4/30/10 1,465 1,279,843 John Maneely Co. Term Loan B, 5.966% - 6.02%, 12/15/13 1,344 1,251,684 NES Rentals Holdings, Inc. Term Loan C, 11.875%, 7/12/13 3,020 2,355,597 Service Master Bridge Loan, 8.42%, 7/28/08 6,070 4,856,000 BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par Industry Senior Floating Rate Loan Interests (000) Value ----------------------------------------------------------------------------------------------------------------------------------- Waste Services, Inc. Term Loan D, 5.15%, 3/31/11 $ 5,914 $ 5,840,253 West Corp. Term Loan, 5.465% - 6.093%, 10/31/13 3,960 3,661,638 ------------- 30,998,296 ----------------------------------------------------------------------------------------------------------------------------------- Communications Alltel Corp. Term Loan B3, 5.466% - 5.568%, 5/18/15 6,982 6,472,346 Equipment - 1.2% SafeNet, Inc. First Lien Term Loan, 5.46%, 5/11/15 993 858,513 ------------- 7,330,859 ----------------------------------------------------------------------------------------------------------------------------------- Computers & Peripherals - 0.2% Intergraph Corp. Term Loan, 5.27% - 7.08%, 5/15/14 419 402,466 Intergraph Corp. Term Loan, 9.09%, 11/15/14 1,000 963,750 ------------- 1,366,216 ----------------------------------------------------------------------------------------------------------------------------------- Construction & Engineering - 0.1% Brand Energy & Infrastructure Services, Inc. Term Loan B, 5.0% - 5.188%, 2/15/14 493 447,842 ----------------------------------------------------------------------------------------------------------------------------------- Construction Materials - 0.3% Headwaters, Inc. Term Loan B-1, 4.90%, 4/30/11 1,963 1,869,281 ----------------------------------------------------------------------------------------------------------------------------------- Containers & Packaging - 1.6% Anchor Glass Container Corp. Term Loan B, 5.113%, 5/03/13 2,216 2,188,599 Berry Plastics Corp. Term Loan B, 9.728% - 11.646%, 6/15/14 9,222 6,455,623 Consolidated Container Co. LLC Second Lien Term Loan, 8.751% - 10.581%, 10/15/14 350 152,250 Graham Packaging Co. LP Term Loan B, 7.188% - 8.0%, 4/15/11 491 468,557 ------------- 9,265,029 ----------------------------------------------------------------------------------------------------------------------------------- Distributors - 0.2% Keystone Automotive Operations, Inc. Term Loan B, 6.21% - 7.75%, 1/15/12 1,677 1,333,068 ----------------------------------------------------------------------------------------------------------------------------------- Diversified Consumer Coinmach Laundry Corp. Term Loan B, 6.07% - 7.0%, Services - 0.8% 11/15/14 5,500 4,867,500 ----------------------------------------------------------------------------------------------------------------------------------- Diversified Financial J.G. Wentworth Manufacturing Term Loan B, 7.45%, 4/15/14 4,000 3,150,000 Services - 0.5% ----------------------------------------------------------------------------------------------------------------------------------- Diversified Telecommunication Winstar Communications Debtor In Possession, 6.366%, 12/31/06 (e) 3,162 4,813,949 Services - 0.8% ----------------------------------------------------------------------------------------------------------------------------------- Electrical Equipment - 0.4% Generac Power Systems, Inc. First Lien Term Loan, 5.288%, 11/15/13 3,000 2,437,500 ----------------------------------------------------------------------------------------------------------------------------------- Energy Equipment & Dresser, Inc. First Lien Term Loan, 5.113% - 5.565%, 5/15/14 2,946 2,815,602 Services - 1.3% Dresser, Inc. Second Lien Term Loan, 8.82%, 5/15/15 2,500 2,364,583 MEG Energy Corp. Delayed Draw Term Loan, 4.70%, 3/23/13 1,248 1,176,653 MEG Energy Corp. Term Loan B, 4.70%, 4/03/13 1,225 1,152,520 ------------- 7,509,358 ----------------------------------------------------------------------------------------------------------------------------------- Food & Staples Retailing - 1.6% Bolthouse Farms, Inc. Second Lien Term Loan, 10.33%, 12/01/13 1,000 940,000 BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par Industry Senior Floating Rate Loan Interests (000) Value ----------------------------------------------------------------------------------------------------------------------------------- DS Waters LP Term Loan B, 7.119%, 11/15/12 $ 1,000 $ 930,000 Dole Food Co., Inc. Letter of Credit, 2.58% - 4.247%, 4/12/13 608 562,686 Dole Food Co., Inc. Term Loan B, 4.75% - 7.125%, 4/12/13 1,341 1,240,723 Dole Food Co., Inc. Term Loan C, 4.75% - 7.125%, 4/04/13 4,470 4,135,743 McJunkin Corp. Term Loan B, 6.134%, 1/30/14 494 485,932 Sturm Foods, Inc. First Lien Term Loan, 5.438%, 1/30/14 990 770,550 Sturm Foods, Inc. Second Lien Term Loan, 11.063%, 6/30/14 1,250 700,000 ------------- 9,765,634 ----------------------------------------------------------------------------------------------------------------------------------- Food Products - 0.5% Eight O'Clock Coffee First Lien Term Loan, 5.50%, 7/21/12 907 870,348 Jetro Holdings, Inc. Term Loan, 5.20%, 5/11/14 1,938 1,821,250 ------------- 2,691,598 ----------------------------------------------------------------------------------------------------------------------------------- Health Care Equipment & Biomet, Inc. Term Loan B, 5.696%, 3/25/14 1,995 1,937,077 Supplies - 0.9% ReAble Therapeutics Finance LLC Term Loan, 5.696%, 5/14/14 3,491 3,395,241 ------------- 5,332,318 ----------------------------------------------------------------------------------------------------------------------------------- Health Care Providers & CCS Medical First Lien Term Loan, 5.93%, 10/31/12 477 407,816 Services - 1.0% Community Health Systems, Inc. Term Loan B, 4.733%, 6/18/14 2,856 2,692,653 Rotech Healthcare, Inc. Term Loan B, 8.899% - 10.832%, 9/26/11 3,420 2,975,010 ------------- 6,075,479 ----------------------------------------------------------------------------------------------------------------------------------- Hotels, Restaurants & Golden Nugget, Inc. Term Loan Second Lien, 5.81% - 8.84%, 11/30/14 1,500 1,020,000 Leisure - 3.1% Green Valley Ranch Gaming LLC Term Loan, 6.335%, 8/30/14 750 492,188 Harrah's Entertainment, Inc. Term Loan B2, 6.244%, 1/29/15 700 653,516 Harrah's Entertainment, Inc. Term Loan B3, 5.92%, 1/29/15 494 461,876 Harrah's Operating Term Loan B, 5.92%, 1/31/15 556 518,221 Las Vegas Sands LLC Delay Draw Term Loan, 4.17%, 5/23/14 800 735,334 Las Vegas Sands LLC Term Loan B, 4.45%, 5/04/14 3,176 2,919,274 OSI Restaurant Partners, Inc. Revolving Credit, 4.878%, 5/15/14 75 64,718 BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par Industry Senior Floating Rate Loan Interests (000) Value ----------------------------------------------------------------------------------------------------------------------------------- OSI Restaurant Partners, Inc. Term Loan B, 5.0%, 5/15/14 $ 887 $ 763,659 QCE LLC Second Lien Term Loan, 10.948%, 11/05/13 6,000 4,890,000 Venetian Macau US Finance Co. LLC Delay Draw Term Loan, 7.45%, 5/25/12 2,500 2,412,500 Venetian Macau US Finance Co. LLC Term Loan B, 7.45%, 5/25/13 3,500 3,377,500 ------------- 18,308,786 ----------------------------------------------------------------------------------------------------------------------------------- Household Durables - 0.5% American Residential Services Second Lien Term Loan, 12.0%, 4/17/15 (n) 3,000 2,956,963 ----------------------------------------------------------------------------------------------------------------------------------- Household Products - 0.7% Spectrum Brands, Inc. Letter of Credit, 2.678%, 4/15/13 282 268,056 Spectrum Brands, Inc. Term Loan B-1, 5.69% - 7.096%, 4/15/13 4,125 3,922,096 ------------- 4,190,152 ----------------------------------------------------------------------------------------------------------------------------------- IT Services - 3.0% Activant Solutions Term Loan B, 6.75% - 7.50%, 5/02/13 3,686 3,262,423 Audio Visual Services Corp. Second Lien Term Loan, 8.20%, 9/15/14 1,000 900,000 Ceridian Corp. Term Loan, 5.59%, 11/07/14 3,500 3,062,500 First Data Corp. Term Loan B, 5.446% - 7.634%, 9/24/14 2,488 2,305,743 First Data Corp. Term Loan B2, 5.349% - 5.446%, 9/24/14 5,995 5,558,990 First Data Corp. Term Loan B3, 5.446% - 7.634%, 9/24/14 1,995 1,850,600 RedPrairie Corp. Term Loan, 6.0%, 7/31/12 296 260,700 RedPrairie Corp. Term Loan, 7.0% - 8.0%, 7/31/12 887 780,961 ------------- 17,981,917 ----------------------------------------------------------------------------------------------------------------------------------- Independent Power Producers & TXU Corp. Term Loan B-2, 6.234% - 6.478%, 10/14/29 3,990 3,754,682 Energy Traders - 1.3% TXU Corp. Term Loan B-3, 6.478% - 6.596%, 10/10/14 3,980 3,740,205 ------------- 7,494,887 ----------------------------------------------------------------------------------------------------------------------------------- Insurance - 0.3% Alliant Insurance Services Term Loan B, 5.696%, 10/23/14 995 922,863 USI Holdings Corp. Term Loan B, 5.45%, 5/15/14 993 915,581 ------------- 1,838,444 ----------------------------------------------------------------------------------------------------------------------------------- Machinery - 1.9% Harrington Holdings, Inc. Term Loan, 5.113%, 1/15/14 990 910,800 Maxim Crane Term Loan B, 4.71% - 6.25%, 6/14/14 993 982,575 Navistar International Transportation Corp. Revolving Credit, 5.17% - 6.149%, 6/30/12 1,867 1,753,112 BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par Industry Senior Floating Rate Loan Interests (000) Value ----------------------------------------------------------------------------------------------------------------------------------- Navistar International Transportation Corp. Term Loan, 6.501%, 6/30/12 $ 5,133 $ 4,821,057 OshKosh Truck Corp. Term Loan B, 7.11%, 11/30/13 1,975 1,885,301 Rexnord Corp. Payment In Kind Term Loan, 10.058% - 12.131%, 3/02/13 1,200 942,271 ------------- 11,295,116 ----------------------------------------------------------------------------------------------------------------------------------- Media - 10.9% Affinion Group, Inc. Term Loan, 11.678%, 3/01/12 4,000 3,340,000 Cequel Communications LLC Second Lien Term Loan, 8.873% - 9.239%, 5/04/14 9,799 8,402,936 Cequel Communications LLC Term Loan B, 4.685% - 7.36%, 11/05/13 1,582 1,471,502 Charter Communications, Inc. Term Loan B, 4.90%, 4/30/14 11,721 10,408,712 ClientLogic Holding Corp. Term Loan B, 5.106% - 7.343%, 1/30/14 973 778,768 Easton-Bell Sports, Inc. Term Loan B, 8.98% - 8.99%, 5/01/12 4,251 3,841,471 Education Media and Publishing First Lien Term Loan B, 6.901%, 11/14/14 5,053 4,623,523 Education Media and Publishing Second Lien Term Loan, 11.401%, 11/14/14 18,205 15,109,943 Ellis Communications Term Loan, 10.0%, 12/30/11 6,330 5,063,981 GateHouse Media Operating, Inc. Delay Draw Term Loan, 4.72% - 5.09%, 9/15/14 592 412,688 GateHouse Media Operating, Inc. Term Loan B, 5.09%, 9/15/14 2,000 1,395,000 Insight Midwest Holdings LLC Delay Draw Term Loan, 7.0%, 4/03/14 4,150 3,961,768 Insight Midwest Holdings LLC Term Loan B, 7.36%, 4/06/14 1,250 1,193,304 Multicultural Radio Broadcasting Inc. Term Loan, 5.75%, 12/15/12 444 403,813 NEP Supershooters, LP Term Loan B, 4.946%, 2/13/14 990 895,120 Penton Media Term Loan, 7.899%, 2/15/14 1,000 700,000 ProSiebenSat.1 Media AG Term Loan B, 6.77%, 6/30/15 EUR 500 539,892 ProSiebenSat.1 Media AG Term Loan B, 7.02%, 6/30/16 1,000 1,079,783 Univision Communications, Inc. First Lien Term Loan, 4.954%, 9/30/14 $ 168 141,380 Univision Communications, Inc. First Lien Term Loan, 7.072% - 7.21%, 9/30/14 1,882 1,586,001 ------------- 65,349,585 ----------------------------------------------------------------------------------------------------------------------------------- BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par Industry Senior Floating Rate Loan Interests (000) Value ----------------------------------------------------------------------------------------------------------------------------------- Multi-Utilities - 0.4% Coleto Creek Letter of Credit, 5.446%, 7/31/13 $ 454 $ 411,771 Coleto Creek Term Loan B, 2.596%, 7/31/13 32 28,875 Energy Transfer Equity LP Term Loan B, 4.508%, 11/01/12 750 727,902 NE Energy Second Lien Term Loan, 7.125%, 10/31/14 750 652,500 USPF Holdings Term Loan, 4.477%, 4/15/14 952 870,747 ------------- 2,691,795 ----------------------------------------------------------------------------------------------------------------------------------- Multiline Retail - 0.6% Neiman Marcus Group, Inc. Term Loan, 4.758%, 4/06/13 3,750 3,583,125 ----------------------------------------------------------------------------------------------------------------------------------- Oil, Gas & Consumable Fuels - 1.3% Big West Oil & Gas Delay Draw Term Loan, 5.068%, 5/15/14 219 204,531 Big West Oil & Gas Term Loan B, 5.0%, 5/15/14 774 724,041 Petroleum Geo-Services ASA Term Loan B, 4.45%, 6/30/15 1,907 1,842,317 Scorpion Drilling Ltd. Second Lien Term Loan, 12.406%, 5/05/15 3,500 3,570,000 Western Refining Co. LP Delay Draw Term Loan, 4.649%, 3/15/14 184 162,856 Western Refining Co. LP Term Loan B, 4.649%, 3/15/14 1,198 1,060,578 ------------- 7,564,323 ----------------------------------------------------------------------------------------------------------------------------------- Paper & Forest Products - 0.8% Boise Cascade Holdings LLC Second Lien Term Loan, 7.50%, 2/05/15 1,500 1,501,340 Verso Paper Holdings LLC Term Loan B, 9.078%, 2/01/13 3,671 3,457,199 ------------- 4,958,539 ----------------------------------------------------------------------------------------------------------------------------------- Pharmaceuticals - 0.4% Pharmaceutical Technologies & Services (PTS) Term Loan, 4.946%, 4/15/14 2,978 2,646,253 ----------------------------------------------------------------------------------------------------------------------------------- Real Estate Management & Enclave First Lien Term Loan, 6.14%, 3/01/12 4,000 3,477,200 Development - 1.2% Georgian Towers Term Loan, 6.14%, 3/01/12 4,000 3,394,800 Yellowstone Club Term Loan B, 5.238%, 10/15/10 438 357,232 ------------- 7,229,232 ----------------------------------------------------------------------------------------------------------------------------------- Software - 1.1% Aspect Software Second Lien Term Loan, 11.50%, 7/05/12 7,000 6,300,000 ----------------------------------------------------------------------------------------------------------------------------------- Specialty Retail - 0.6% ADESA, Inc. Term Loan B, 4.95%, 10/30/13 1,985 1,839,599 Burlington Coat Factory Warehouse Corp. Term Loan B, 5.34%, 4/15/13 981 829,363 Claire's Stores Term Loan B, 5.613% - 7.58%, 5/24/14 1,484 1,180,066 ------------- 3,849,028 ----------------------------------------------------------------------------------------------------------------------------------- BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Par Industry Senior Floating Rate Loan Interests (000) Value ----------------------------------------------------------------------------------------------------------------------------------- Textiles, Apparel & Luxury David's Bridal, Inc. Term Loan B, 4.696%, 1/30/14 $ 990 $ 863,775 Goods - 0.2% Renfro Corp. Term Loan B, 6.15% - 6.34%, 9/30/13 740 592,112 ------------- 1,455,887 ----------------------------------------------------------------------------------------------------------------------------------- Wireless Telecommunication Centennial Cellular Operating Co. Term Loan, Services - 1.1% 4.696% - 5.085%, 2/09/11 4,750 4,634,813 IPC Systems First Lien Term Loan, 4.946%, 5/25/14 1,985 1,521,834 NG Wireless Term Loan, 5.446% - 5.613%, 7/31/14 610 579,144 ------------- 6,735,791 ----------------------------------------------------------------------------------------------------------------------------------- Total Senior Floating Rate Loan Interests - 55.5% 333,505,928 ----------------------------------------------------------------------------------------------------------------------------------- Common Stocks Shares ----------------------------------------------------------------------------------------------------------------------------------- Airlines - 0.2% Delta Air Lines, Inc. (g) 221,600 1,362,840 ----------------------------------------------------------------------------------------------------------------------------------- Building Products - 0.1% Neenah Enterprises Inc. (g) 144,858 517,143 ----------------------------------------------------------------------------------------------------------------------------------- Capital Markets - 0.3% E*Trade Financial Corp. (g) 484,043 1,984,576 ----------------------------------------------------------------------------------------------------------------------------------- Chemicals - 0.0% GEO Specialty Chemicals, Inc. (g) 339,340 130,273 GenTek Inc. (g) 403 11,812 ------------- 142,085 ----------------------------------------------------------------------------------------------------------------------------------- Commercial Services & New Outsourcing Solutions, Inc. (g) 90,876 181,752 Supplies - 0.0% ----------------------------------------------------------------------------------------------------------------------------------- Communications Equipment - 0.5% Loral Space & Communications Ltd. (g) 150,354 2,915,364 ----------------------------------------------------------------------------------------------------------------------------------- Containers & Packaging - 0.2% Smurfit Kappa Plc 36,342 370,329 Viskase Cos., Inc. (g) 1,428,423 542,801 ------------- 913,130 ----------------------------------------------------------------------------------------------------------------------------------- Electrical Equipment - 0.3% Medis Technologies Ltd. (g) 286,757 1,775,026 ----------------------------------------------------------------------------------------------------------------------------------- Hotels, Restaurants & HRP PIK Corp. Class B (b)(n) 5,000 50 Leisure - 0.0% Lodgian, Inc. (g) 27,787 250,083 ------------- 250,133 ----------------------------------------------------------------------------------------------------------------------------------- Multi-Utilities - 1.1% CenterPoint Energy, Inc. 375,937 6,368,373 ----------------------------------------------------------------------------------------------------------------------------------- Paper & Forest Products - 0.1% Western Forest Products, Inc. Restricted Shares (g) 211,149 255,011 ----------------------------------------------------------------------------------------------------------------------------------- Semiconductors & Semiconductor Cypress Semiconductor Corp. (g) 17,839 497,351 Equipment - 0.1% ----------------------------------------------------------------------------------------------------------------------------------- Total Common Stocks - 2.9% 17,162,784 ----------------------------------------------------------------------------------------------------------------------------------- Preferred Securities ----------------------------------------------------------------------------------------------------------------------------------- Par Capital Trusts (000) ----------------------------------------------------------------------------------------------------------------------------------- Diversified Financial Citigroup, Inc., 8.40% (f)(o) $ 4,200 4,163,418 Services - 0.7% ----------------------------------------------------------------------------------------------------------------------------------- Total Capital Trusts - 0.7% 4,163,418 ----------------------------------------------------------------------------------------------------------------------------------- BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Industry Preferred Stocks Shares Value ----------------------------------------------------------------------------------------------------------------------------------- Oil, Gas & Consumable Fuels - 1.8% EXCO Resources, Inc., 7% (a)(b) 179 $ 2,148,000 EXCO Resources, Inc., 11% (b) 737 8,844,000 ----------------------------------------------------------------------------------------------------------------------------------- Total Preferred Stocks - 1.8% 10,992,000 ----------------------------------------------------------------------------------------------------------------------------------- Total Preferred Securities - 2.5% 15,155,418 ----------------------------------------------------------------------------------------------------------------------------------- Warrants (i) ----------------------------------------------------------------------------------------------------------------------------------- Building Products - 0.1% Neenah Enterprises Inc. (expires 9/30/13) 130,547 459,525 ----------------------------------------------------------------------------------------------------------------------------------- Chemicals - 0.0% GenTek Inc. Tranche B (expires 11/10/08) 471 7,866 GenTek Inc. Tranche C (expires 11/10/10) 231 2,657 ------------- 10,523 ----------------------------------------------------------------------------------------------------------------------------------- Health Care Providers & HealthSouth Corp. (expires 1/16/14) 126,761 31,690 Services - 0.0% ----------------------------------------------------------------------------------------------------------------------------------- Media - 0.0% Sirius Satellite Radio, Inc. (expires 5/15/09) 15,000 150 ----------------------------------------------------------------------------------------------------------------------------------- Wireless Telecommunication American Tower Corp. (expires 8/01/08) 1,325 852,472 Services - 0.1% ----------------------------------------------------------------------------------------------------------------------------------- Total Warrants - 0.2% 1,354,360 ----------------------------------------------------------------------------------------------------------------------------------- Beneficial Interest Other Interests (j) (000) ----------------------------------------------------------------------------------------------------------------------------------- Airlines - 0.0% Delta Air Lines, Inc. Default 8.33% Escrow $ 5,505 89,456 Delta Air Lines, Inc. Default 10% Escrow 4,200 57,750 ------------- 147,206 ----------------------------------------------------------------------------------------------------------------------------------- Auto Components - 0.0% Cambridge Industries, Inc. (Litigation Trust Certificates) (n) 3,615 36 ----------------------------------------------------------------------------------------------------------------------------------- Media - 0.0% Adelphia Escrow (n) 7,500 750 Adelphia Preferred Escrow (n) 5 1 Adelphia Recovery Trust (n) 9,406 37,624 Adelphia Recovery Trust Series ACC-6B INT (n) 500 50 ------------- 38,425 ----------------------------------------------------------------------------------------------------------------------------------- Total Other Interests - 0.0% 185,667 ----------------------------------------------------------------------------------------------------------------------------------- Total Long-Term Securities (Cost - $916,803,907) - 132.4% 795,819,126 ----------------------------------------------------------------------------------------------------------------------------------- Short-Term Securities ----------------------------------------------------------------------------------------------------------------------------------- BlackRock Liquidity Series, LLC Cash Sweep Series, 2.63% (k)(l) 2,382 2,381,662 ----------------------------------------------------------------------------------------------------------------------------------- Total Short-Term Securities (Cost - $2,381,662) - 0.4% 2,381,662 ----------------------------------------------------------------------------------------------------------------------------------- Total Investments Before Options Written (Cost - $919,185,569*) - 132.8% 798,200,788 ----------------------------------------------------------------------------------------------------------------------------------- Options Written (h) Contracts+ ----------------------------------------------------------------------------------------------------------------------------------- Call Options Pay a fixed rate of 0.93% and receive a floating rate based on 3-month USD LIBOR, expiring July 2008, Broker Credit Suisse International 8 (48,128) ----------------------------------------------------------------------------------------------------------------------------------- BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) (Percentages shown are based on Net Assets) Options Written (h) Contracts+ Value ----------------------------------------------------------------------------------------------------------------------------------- Put Options Receive a fixed rate of 0.93% and pay a floating rate based on 3-month USD LIBOR, expiring July 2008, Broker Credit Suisse International 8 $ (310,344) ----------------------------------------------------------------------------------------------------------------------------------- Total Options Written (Premiums Received - $480,000) - (0.0%) (358,472) ----------------------------------------------------------------------------------------------------------------------------------- Total Investments, Net of Options Written - 132.8% 797,842,316 Liabilities in Excess of Other Assets - (32.8%) (196,931,477) ------------- Net Assets - 100.0% $ 600,910,839 ============= * The cost and unrealized appreciation (depreciation) of investments as of May 31, 2008, as computed for federal income tax purposes, were as follows: Aggregate cost $ 919,620,698 ============= Gross unrealized appreciation $ 19,601,946 Gross unrealized depreciation (141,021,856) ------------- Net unrealized depreciation . $(121,419,910) ============= + One contract represents a notional amount of $1,000,000. (a) Convertible security. (b) Security exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration to qualified institutional investors. Unless otherwise indicated, these securities are not considered to be illiquid. (c) Represents a pay-in-kind security which may pay interest/dividends in additional face/shares. (d) Issuer filed for bankruptcy or is in default of interest payments. (e) As a result of bankruptcy proceedings, the company did not repay the principal amount of the security upon maturity. The security is non-income producing. (f) Variable rate security. Rate shown is as of report date. (g) Non-income producing security. (h) This European style swaption, which can be exercised only on the expiration date, represents a standby commitment whereby the writer of the option is obligated to enter into a predetermined interest rate swap contract upon exercise of swaption. (i) Warrants entitle the Fund to purchase a predetermined number of shares of common stock and are non-income producing. The purchase price and number of shares are subject to adjustment under certain conditions until the expiration date. (j) Other interests represent beneficial interest in liquidation trusts and other reorganization entities and are non-income producing. (k) 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 Activity Interest Affiliate (000) Income -------------------------------------------------------------------------- BlackRock Liquidity Series, LLC Cash Sweep Series $ 2,382 $ 30,195 -------------------------------------------------------------------------- (l) Represents the current yield as of report date. (m) Represents a step bond. (n) Security is fair valued. (o) Security is perpetual in nature and has no stated maturity date. In certain instances, a final maturity date may be extended and/or the final payment may be deferred at the issuer's option for a specified time without default. BlackRock Debt Strategies Fund, Inc. Schedule of Investments May 31, 2008 (Unaudited) o For Fund compliance purposes, the Fund's industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Fund management. This definition may not apply for purposes of this report, which may combine industry sub-classifications for reporting ease. o Forward foreign currency contracts as of May 31, 2008, were as follows: -------------------------------------------------------------------------- Currency Currency Settlement Unrealized Purchased Sold Date Appreciation -------------------------------------------------------------------------- $ 5,110,256 EUR 3,247,500 7/23/08 $ 71,418 -------------------------------------------------------------------------- o Swaps outstanding as of May 31, 2008 were as follows: --------------------------------------------------------------------------------- Notional Amount Unrealized (000) Depreciation --------------------------------------------------------------------------------- Sold credit default protection on Ford Motor Company and receive 3.80% Broker, Lehman Brothers Special Finance Expires March 2010 $ 10,000 $ (961,710) Sold credit default protection on BAA Ferovial Junior Term Loan and receive 2% Broker, Deutsche Bank AG London Expires June 2012 GBP 1,733 (99,421) Bought credit default protection on Dow Jones CDX North America High Yield Series 10 Index and pay 5% Broker, Morgan Stanley Capital Services Expires June 2013 $ 8,991 (149,785) --------------------------------------------------------------------------------- Total $ (1,210,916) ============ o Currency Abbreviations: EUR Euro GBP British Pound BlackRock Debt Strategies Fund, Inc. o Effective March 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 May 31, 2008 in determining the fair valuation of the Fund's investments: -------------------------------------------------------------------- Valuation Investments in Other Financial Inputs Securities Instruments* -------------------------------------------------------------------- Level 1 $ 16,861,232 $ (358,472) Level 2 778,343,902 -- Level 3 2,995,654 -- -------------------------------------------------------------------- Total $ 798,200,788 $ (358,472) ==================================================================== * Other financial instruments are options. The following is a reconciliation of investments for unobservable inputs (Level 3) were used in determining fair value: -------------------------------------------------------------------- Investments in Securities -------------------------------------------------------------------- Balance, as of February 29, 2008 $ 2,994,080 Accrued discounts/premiums -- Realized gain (loss) -- Change in unrealized appreciation (depreciation) 1,574 Net purchases (sales) -- Net transfers in/out of Level 3 -- -------------------------------------------------------------------- Balance, as of May 31, 2008 $ 2,995,654 ==================================================================== 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 Debt Strategies Fund, Inc. By: /s/ Donald C. Burke -------------------------------- Donald C. Burke Chief Executive Officer of BlackRock Debt Strategies Fund, Inc. Date: July 18, 2008 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 Debt Strategies Fund, Inc. Date: July 18, 2008 By: /s/ Neal J. Andrews -------------------------------- Neal J. Andrews Chief Financial Officer (principal financial officer) of BlackRock Debt Strategies Fund, Inc. Date: July 18, 2008