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 811-22126

Name of Fund: BlackRock Defined Opportunity Credit Trust (BHL)

Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809

Name and address of agent for service: Donald C. Burke, Chief Executive Officer, BlackRock Defined Opportunity
Credit Trust, 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 Defined Opportunity Credit Trust                  
Schedule of Investments November 30, 2008 (Unaudited)     (Percentages shown are based on Net Assets)  
                Par      
Industry     Floating Rate Loan Interests             (000)     Value  
Aerospace & Defense - 2.6%     Avio Holding SpA Term Loan B, 3.556%, 9/25/14     USD     471     $ 305,322  
    Avio Holding SpA Term Loan C, 4.181%, 9/25/15         500     324,000  
                                                                 Hawker Beechcraft Acquisition Co. LLC Letter of Credit,
    4.801%, 3/26/14             162     85,034  
                                                                 Hawker Beechcraft Acquisition Co. LLC Term Loan B,
    5.762%, 3/26/14             2,769     1,451,811  
                    2,166,167  
Auto Components - 2.5%     Allison Transmission, Inc. Term Loan, 4.38% - 5.57%,              
    8/07/14             2,198     1,309,702  
    Dana Holding Corp. Term Advance, 6.75% - 7.52%, 1/31/15         1,325     785,988  
                    2,095,690  
Automobiles - 0.5%     Ford Motor Co. Term Loan, 4.43%, 12/15/13         995     397,975  
Biotechnology - 0.4%     Talecris Biotherapeutics Holdings Corp. Term Loan, 6.31%,              
    12/06/13             397     348,356  
Building Products - 1.5%     Building Materials Corp. of America Term Loan Advance,              
    6.50% - 6.625%, 2/22/14             747     460,264  
    Momentive Performance Materials Term Loan B-2, 5.686%,              
    12/04/13         EUR     1,000     800,417  
                    1,260,681  
Capital Markets - 0.7%     Nuveen Investments, Inc. Term Loan B, 4.436% - 6.769%,              
    11/13/14         USD     1,313     599,474  
Chemicals - 6.0%     Brenntag Holdings GMBH & Co. KG Facility B-2, 5.071%,              
    1/24/13             1,000     710,000  
    Cognis Deutschland Term Loan C, 4.819%, 9/15/13         1,000     602,000  
    Huish Detergents, Inc. Term Loan B, 5.77%, 4/26/14         995     774,412  
    Matrix Acquisition (MacDermid, Inc.) Tranche B Term Loan,              
    5.762%, 12/15/13             1,717     1,081,862  
    PQ Corp. First Lien Term Loan, 6.72% - 7.02%, 5/29/16         998     617,203  
    PQ Corp. Second Lien Term Loan, 9.97%, 5/29/15         1,000     475,000  
    Solutia, Inc. Term Loan, 8.50%, 2/28/14             995     728,828  
                    4,989,305  
Commercial Services & Supplies -     ARAMARK Corp. Letter of Credit Facility, 2.676% - 5.025%,              
5.8%     1/26/14             149     118,275  
    ARAMARK Corp. U.S. Term Loan B, 5.637%, 1/26/14         2,351     1,861,725  
    Alliance Laundry Systems LLC Term Loan, 5.50%, 1/27/12         921     690,789  
    Kion Group GmbH Term Facility Loan B, 3.436%, 12/28/14         500     268,000  
    Kion Group GmbH Term Facility Loan C, 3.936%, 12/23/15         500     268,000  
                                                                 Synagro Technologies, Inc. First Lien, 4.24% - 5.77%,
    4/01/14             995     666,625  
    West Corp. Term Loan B-2, 3.774% - 5.594%, 10/31/13         1,490     924,669  
                    4,798,083  
Communications Equipment - 0.8%     Sorenson Communications Tranche C Term Loan, 4%,              
    10/27/14             831     664,529  
Computers & Peripherals - 1.4%     Intergraph Corp. Initial Term Loan First Lien, 4.196%,              
    5/15/14             1,500     1,151,250  

1


BlackRock Defined Opportunity Credit Trust                  
Schedule of Investments November 30, 2008 (Unaudited)     (Percentages shown are based on Net Assets)  
                Par      
Industry     Floating Rate Loan Interests             (000)     Value  
Containers & Packaging - 2.9%     Crown Americas Additional Term B Dollar Loan, 3.159%,              
    11/30/12         USD     495      $ 420,663  
                                                                     Graphic Packaging International Corp. Incremental Term
    Loan, 4.161% - 7.385%, 5/16/14             1,481     1,141,338  
                                                                     Smurfit Kappa Group Term Loan B-1, 5.597% - 6.996%,
    7/16/14         EUR     500     403,674  
    Smurfit Kappa Group Term Loan C-1 Facility,              
    5.847% - 7.443%, 7/16/15             500     403,674  
                    2,369,349  
Diversified Consumer Services -     Coinmach Corp. Term Loan , 4.46% - 5.22%, 11/15/14     USD     1,492     1,119,361  
1.4%                      
Diversified Telecommunication     BCM Ireland Holdings (Eircom) Term Loan B, 5.526%,              
Services - 6.2%     8/14/14         EUR     493     455,133  
                                                                      BCM Ireland Holdings (Eircom) Term Loan C, 5.517%,
    8/14/13             493     455,184  
    Hawaiian Telcom Communications Inc. Term Loan C, 6.262%,              
    6/01/14         USD     500     199,167  
    Integra Telecom, Inc. First Lien Term Loan,                  
    6.446% - 8.012%, 8/31/13             1,987     1,132,850  
                                                                      PaeTec Holdings Corp. Replacement Term Loan, 3.936%,
    1/24/13             973     637,088  
    Time Warner Telecom Holdings Term Loan B,              
    3.44% - 4.20%, 2/23/14             1,534     1,198,696  
    Wind Finance Term Loan, 11.473%, 12/17/14     EUR     1,000     1,059,282  
                    5,137,400  
Electric Utilities - 0.4%     Astoria Generating Co. Acquisitions, LLC Second Lien Term              
    Loan C, 6.96%, 8/23/13         USD     500     342,500  
Electronic Equipment &     Deutsch Connectors Term Loan B, 5.384%, 7/27/14         55     39,296  
Instruments - 3.4%     Deutsch Connectors Term Loan B-2, 5.384%, 7/27/14         854     606,280  
    Deutsch Connectors Term Loan C-2, 5.634%, 7/27/15         751     533,412  
    Flextronics International Ltd. A Closing Rate Loan, 5.041% -              
    7.069%, 10/01/14             1,549     1,043,207  
    Flextronics International Ltd. Delay Draw Term Loan A-1,              
    7.069%, 10/05/14             444     298,710  
    L-1 Identity Solutions Operating Co. Term Loan B, 7.294% -              
    7.50%, 8/05/13             375     317,813  
                    2,838,718  
Energy Equipment & Services - 2.5%     Compagnie Generale de Geophysique Term Loan, 3.436% -              
    5.704%, 1/12/14             1,247     1,015,872  
    Dresser, Inc. Term Loan B, 3.686% - 4.486%, 5/15/14         1,488     1,013,871  
                    2,029,743  
Food & Staples Retailing - 1.3%     Alliance Boots Plc Acquisition Term Loan Facility B-2 UK              
    Borrower, 6.076%, 7/09/15         GBP     1,000     1,084,248  
Food Products - 0.6%     Dole Food Co., Inc. Letter of Credit, 4.819%, 4/12/13     USD     73     51,704  

2


BlackRock Defined Opportunity Credit Trust                  
Schedule of Investments November 30, 2008 (Unaudited)     (Percentages shown are based on Net Assets)  
                Par      
Industry     Floating Rate Loan Interests             (000)     Value  
    Dole Food Co., Inc. Term Loan B, 5% - 5.313%, 4/12/13     USD     130     $ 91,641  
    Dole Food Co., Inc. Term Loan C, 3.50% - 6.813%, 4/12/13         486     341,428  
                    484,773  
Health Care Equipment &     Bausch & Lomb, Inc. Delay Draw Term Loan, 7.012%,              
Supplies - 4.7%     4/24/15             240     172,973  
    Bausch & Lomb, Inc. Parent Term Loan, 7.012%, 4/24/15         1,589     1,144,506  
    Biomet, Inc. Term Loan B, 6.762%, 3/25/15             1,484     1,204,113  
    DJO Finance LLC Term Loan, 4.436% - 6.762%, 5/20/14         993     744,375  
    Hologic, Inc. Term Loan B, 6.75%, 3/31/13             300     261,272  
                                                                   Inverness Medical Innovations, Inc. First Lien Term Loan,
    5.476% - 5.50%, 6/30/14             499     351,610  
                    3,878,849  
Health Care Providers & Services -     Community Health Systems, Inc. Funded Term Loan,              
8.5%     4.018% - 4.446%, 7/25/14             3,292     2,410,896  
    HCA, Inc. Term Loan B, 6.012%, 11/15/12             2,992     2,237,120  
    HealthSouth Corp. Term Loan B, 4.27% - 4.90%, 3/10/13         1,824     1,429,481  
    Surgical Care Affiliates LLC Term Loan, 5.762%, 6/29/14         496     287,814  
    Symbion, Inc. Term Loan B, 4.686% - 6.67%, 8/01/14         478     315,493  
    Symbion, Inc. Tranche A Term Loan, 4.686% -6.67%, 8/01/14              
                478     315,493  
                    6,996,297  
Health Care Technology - 0.5%     Sunquest Holdings, Inc. (Misys Hospital Systems) Term Loan,              
    6.37% - 6.67%, 10/11/14             496     392,038  

 
 
 
 
 
Hotels, Restaurants & Leisure - 3.2%     Harrah's Operating Co., Inc. Term Loan B-2,                  
    6.535% - 6.762%, 1/28/15             1,734     1,012,077  
                                                                   Penn National Gaming, Inc. Term Loan B, 3.19% - 4.55%,
    10/03/12             987     803,642  
    QCE LLC First Lien Term Loan, 5.813%, 5/05/13         995     547,201  
    VMLUS Finance LLC (Venetian Macau) Delay Draw Term         181     101,220  
    Loan, 6.02%, 4/11/13                  
    VMLUS Finance LLC (Venetian Macau) Term Loan B Funded              
    Project, 6.02%, 5/26/11             319     178,780  
                    2,642,920  
Household Durables - 2.7%     Jarden Corp. Term Loan B-3, 6.262%, 1/24/12         1,737     1,357,806  
                                                                  The Yankee Candle Co., Inc. Term Loan, 3.42% - 5.77%,
    2/06/14             1,606     863,127  
                    2,220,933  
Household Products - 0.5%     VI/Jon Inc. (VJCS Acquisition) Term Loan B, 3.724%, 4/24/14              
                500     425,000  
IT Services - 8.5%     Amadeus Global Travel Distribution SA Term              
    Loan B-2, 4.85%, 5/04/15             968     429,985  
    Amadeus Global Travel Distribution SA Term              
    Loan B-3 Facility, 6.481%, 7/15/13         EUR     307     181,301  
    Amadeus Global Travel Distribution SA Term              
    Loan B-4 Facility, 6.481%, 7/15/13             186     109,791  

3


BlackRock Defined Opportunity Credit Trust                  
Schedule of Investments November 30, 2008 (Unaudited)     (Percentages shown are based on Net Assets)  
                Par      
Industry     Floating Rate Loan Interests             (000)     Value  
                                                                    Amadeus Global Travel Distribution SA Term Loan C-2,
    5.35%, 6/30/13         USD     968     $ 433,374  
                                                                    Amadeus Global Travel Distribution SA Term Loan C-3
    Facility, 6.981%, 7/15/14         EUR     307     181,301  
                                                                    Amadeus Global Travel Distribution SA Term Loan C-4,
    6.981%, 7/15/14             186     109,791  
    Ceridian Corp. U.S. Term Loan, 4.423%, 11/09/14     USD     2,000     1,440,000  
    First Data Corp. Term Loan B-2, 4.149% - 6.512%, 9/24/14         2,731     1,846,970  
    First Data Corp. Term Loan B-3, 5.948% - 6.512%, 9/24/14         994     670,758  
                                                                    SunGard Data Systems Inc. (Solar Capital Corp.) New
    U.S.Term Loan B, 4.138%, 2/28/14             1,987     1,386,494  
    SunGard Data Systems Inc. (Solar Capital Corp.) Term Loan              
    B, 7.25%, 2/28/14             250     199,531  
                    6,989,296  
Independent Power Producers &     Dynegy, Inc. Line of Credit, 2.94%, 4/02/13             208     153,342  
Energy Traders - 7.6%     Dynegy, Inc. Term Loan B, 2.94%, 4/02/13             17     12,502  
    Mirant North America LLC Term Loan, 3.161%, 1/03/13         750     608,181  
    NRG Energy, Inc. Letter of Credit, 5.262%, 2/01/13         328     272,024  
    NRG Energy, Inc. Term Loan B, 5.262%, 2/01/13         2,078     1,722,776  
                                                                     Texas Competitive Electric Holdings Co. LLC (TXU) Initial
    Term Loan B-1, 5.268% - 7.262%, 10/10/14             498     336,495  
                                                                     Texas Competitive Electric Holdings Co. LLC (TXU) Initial
    Term Loan B-3, 5.268% - 7.262%, 10/10/14             4,714     3,180,964  
                    6,286,284  
Industrial Conglomerates - 0.8%     Sequa Corp. Term Loan B, 5.02% - 7.02%, 12/03/14         990     675,806  
Insurance - 0.8%     Alliant Holdings I, Inc. Term Loan, 6.762%,                  
    10/23/14             992     630,226  
Internet & Catalog Retail - 0.3%     FTD Group, Inc. Term Loan B, 6.526% - 7.50%, 8/26/14         250     216,250  
Life Sciences Tools & Services - 1.9%     Invitrogen Term Loan B, 6%, 6/11/15             1,750     1,591,406  
Machinery - 2.9%     Lincoln Industrials Delay Draw First Lien, 4.27%, 7/11/14         269     201,989  
    Lincoln Industrials Initial U.S. First Lien Term Loan, 4.27%,              
    7/11/14             718     538,636  
                                                                    Navistar International Corp. Revolving Credit, 4.686% -
    5.903%, 1/19/12             533     288,000  
    Navistar International Corp. Term Advance, 4.686%,              
    1/19/12             1,467     792,000  
    OshKosh Truck Corp. Term Loan B, 2.93% - 5.21%,              
    12/06/13             901     565,866  
                    2,386,491  
Media - 35.9%     Alpha Topco Ltd. Term Loan B, 3.681%, 12/31/13         393     256,143  
    Alpha Topco Ltd. Term Loan B-1, 3.681%, 12/31/13         571     372,571  
    Alix Partners, LLP Tranche C Term Loan, 6.75%, 10/30/13         500     410,000  
    Bresnan Communications LLC First Lien Added Term Loan B,              
    6.06%, 9/29/13             1,000     750,000  
    Bresnan Communications LLC Initial Term Loan B, 4.39% -              
    5.47%, 9/29/13             500     375,000  
    Cablevision Systems Corp. Term Loan, 4.569%, 3/28/13         2,233     1,848,275  

4


BlackRock Defined Opportunity Credit Trust                  
Schedule of Investments November 30, 2008 (Unaudited)     (Percentages shown are based on Net Assets)  
                Par      
Industry     Floating Rate Loan Interests             (000)     Value  
                                       Casema NV (Essent Kablecom) B-1 Term Loan Facility,
    5.892%, 9/30/14         EUR     171     $ 186,632  
                                       Casema NV (Essent Kablecom) B-2 Term Loan Facility,
    5.892%, 11/02/14             329     359,287  
                                       Casema NV (Essent Kablecom) Term Loan C, 6.392%,
    11/02/15             500     545,919  
    Catalina Marketing Corp. Initial Term Loan, 6.762%,              
    10/01/14         USD     2,484     1,608,194  
    Cequel Communications LLC (Cebridge) Term Loan,              
    4.235% - 6.334%, 11/05/13             2,482     1,653,528  
    Charter Communications, Inc. Term Loan B, 5.47%,              
    3/06/14             1,746     1,173,190  
                                       Clarke American Corp. Term Loan B, 6.262% - 6.383%,
    12/31/14             1,484     823,429  
    Dex Media West Term Loan B2, 7% - 7.77%, 10/24/14         750     367,500  
                                        Discovery Communications Holding LLC Term Loan B,
    5.762%, 5/14/14             990     800,214  
                                       Education Media and Publishing Group Ltd. Term Loan B,
    7.516%, 11/14/14             2,000     1,260,000  
    FoxCo Acquisition Sub Term Loan B, 7.25%, 7/14/15         500     320,000  
    Getty Images, Inc. Term Loan, 8.053%, 6/30/15         500     426,875  
                                        Gray Television, Inc. Delay Draw Term Loan B, 3.04% -
    5.65%, 12/31/14             1,776     763,749  
                                        HIT Entertainment Ltd. First Lien Term Loan, 4.71%,
    8/31/12             1,751     875,393  
    Hanley-Wood LLC Term Loan B, 4.608% - 6.25%, 3/08/14         499     236,903  
                                        Hargray Acquisition Co. First Lien Term Loan, 6.012%,
    6/18/14             491     387,740  
    Idearc, Inc. (Verizon) Term Loan B, 3.44% - 5.77%,              
    11/17/14             369     119,769  
    Insight Midwest Holdings LLC Delay Draw Term Loan, 4.85%,              
    4/06/14             1,000     777,143  
    Intelsat Corp. Term Loan B, 6.65% - 9.15%, 1/03/14         665     510,260  
    Lavena Holding 3 (ProSiebenSat.1 Media AG) Term Loan B,              
    7.167% - 7.526%, 6/28/15         EUR     1,010     117,674  
    Lavena Holding 3 (ProSiebenSat.1 Media AG) Term Loan B,              
    7.417% - 7.776%, 6/30/16             1,010     117,674  
    Local TV Finance, LLC Term Loan, 3.96% - 5.77%, 5/07/13     USD     1,987     973,838  
                                       MCC Iowa LLC (Mediacom Broadband Group) Term Loan
    D-1, 2.84%, 1/31/15             249     175,109  
                                       MCC Iowa LLC (Mediacom Communications) Term Loan
    D-2, 2.59%, 1/31/15             882     620,741  
                                       Mediacom Illinois LLC (Mediacom Communications) Term
    Loan C, 2.84%, 1/31/15             1,489     1,019,716  
    NTL Cable Plc (Virgin) Term Loan, 8.148%, 11/19/37     GBP     444     509,010  
    NTL Cable Plc (Virgin) Term Loan B, 9.647%, 9/03/12         469     537,855  
    New Vision Television (Parkin Broadcasting) Term Loan B,              
    5.82%, 10/21/13         USD     337     168,510  
    New Vision Television Term Loan B, 5.82%, 10/21/13         1,643     821,495  
    Newsday LLC Fixed Rate Term Loan, 9.75%, 7/02/13         250     207,500  

5


BlackRock Defined Opportunity Credit Trust                  
Schedule of Investments November 30, 2008 (Unaudited)     (Percentages shown are based on Net Assets)  
                Par      
Industry     Floating Rate Loan Interests             (000)     Value  
    Newsday LLC Floating Rate Term Loan, 9.008%, 8/01/13     USD     500     $ 405,000  
    Nielsen Finance LLC Term Loan B,                  
    3.76% - 4.803%, 8/15/13             2,479     1,641,615  
    PanAmSat Corp. Term Loan B, 9.15%, 1/03/14         665     510,106  
    PanAmSat Corp. Term Loan B2C, 9.15%, 1/03/14         665     510,106  
    Thomson Learning, Inc. Term Loan B-2, 7.50%, 7/05/14         2,494     2,094,750  
    UPC Financing Partnership (United Pan Europe              
    Communications) Term Loan M, 6.481%, 12/31/14     EUR     750     635,549  
    UPC Financing Partnership (United Pan Europe              
    Communications) Term Loan N1, 5.47%, 12/31/14     USD     1,000     706,000  
    Virgin Media NTL Term Loan B, 8.274%, 9/03/12     GBP     281     321,758  
    Weather Channel Term Loan B, 7.25%, 6/01/15     USD     400     343,000  
                    29,644,720  
Metals & Mining - 0.9%     Algoma Steel, Inc. Term Loan B, 5.35%, 6/19/13         997     728,157  
Multi-Utilities - 0.4%     NE Energy Letter of Credit, 3.663%, 10/03/13         57     41,946  
    NE Energy Term Loan B, 4.125%, 10/31/13             443     325,554  
                    367,500  
Multiline Retail - 2.2%     Dollar General Term Loan B-1, 5.182% - 6.17%, 7/03/14         1,500     1,151,625  
    Neiman Marcus Group, Inc. Term Loan, 4.565%, 4/06/13         1,000     625,000  
                    1,776,625  
Oil, Gas & Consumable Fuels - 1.8%     Petroleum Geo-Services ASA/PGS Finance, Inc. Term Loan B,              
    5.51%, 6/06/15             1,458     1,071,721  
    Vulcan Energy Term Loan B-3, 6.25%, 9/03/11         500     423,750  
                    1,495,471  
Paper & Forest Products - 4.7%     Boise Paper LLC (Aldbra Sub LLC) Tranche B Term Loan,              
    7.50%, 2/05/15             995     805,950  
    Georgia-Pacific LLC First Lien Term Loan B,                  
    4.567% - 5.512%, 12/22/12             2,874     2,204,737  
    NewPage Corp. Tem Loan B, 7%, 12/21/14             1,236     906,647  
                    3,917,334  
Personal Products - 1.1%     American Safety Razor Co. LLC Second Lien Term Loan,              
    7.69%, 1/25/14             1,250     875,000  
Pharmaceuticals - 1.0%     Warner Chilcott Term Loan B, 5.762%, 1/18/12         635     535,235  
    Warner Chilcott Term Loan C, 5.762%, 1/30/13         305     256,663  
                    791,898  
Professional Services - 1.0%     Booz Allen Hamilton, Inc. Term Loan B, 8%, 7/01/15         1,000     854,688  

 
 
 
 
Real Estate Management &     Capital Automotive L.P. Term Loan, 4.60%, 12/16/10         600     251,400  
Development - 0.3%                      
Road & Rail - 0.7%     Rail America, Inc. Canadian Term Loan, 7.883%, 6/30/09         65     53,489  
    Rail America, Inc. U.S. Term Loan, 7.883%, 6/30/09         215     176,439  
    Rail America, Inc. U.S. Term Loan B, 7.883%, 6/30/09         470     385,072  
                    615,000  
Specialty Retail - 2.5%     ADESA, Inc. (Kar Holding, Inc.) Term Loan B, 6.02%, 10/20/13         927     550,300  
    General Nutrition Centres, Inc. Term Loan,                  
    6.08% - 6.303%, 9/26/13             993     658,320  

6


BlackRock Defined Opportunity Credit Trust                  
Schedule of Investments November 30, 2008 (Unaudited)     (Percentages shown are based on Net Assets)  
                    Par      
Industry     Floating Rate Loan Interests         (000)     Value  
        Michaels Stores, Inc. Replacements Loan, 5.25% - 6.813%,              
        10/31/13         USD     992     $ 486,278  
        Sally Beauty Co., Inc. Term Loan B, 3.69% - 4.45%, 11/16/13              
                    499     366,409  
                        2,061,307  
Textiles, Apparel & Luxury Goods -     Hanesbrands, Inc. Term Loan B, 4.75% - 5.266%, 9/05/13         500     397,969  
0.5%                          
Wireless Telecommunication     Alltel Corp. Term Loan B-2, 5.316%, 5/16/15         489     462,792  
Services - 6.8%     Alltel Corp. Term Loan B-3, 4.997%, 5/16/15         1,980     1,887,128  
        Cricket Communications, Inc. Term Loan B, 7.262%,              
        6/16/13             1,072     874,560  
        MetroPCS Wireless, Inc. New Tranche B Term Loan 3.688% -              
        5.50%, 11/03/13             2,040     1,580,685  
        NTELOS, Inc. Term Loan B-1 Facility, 3.69%, 8/14/11         995     838,167  
                        5,643,332  
        Total Floating Rate Loan Interests - 143.6%             118,629,799  
        Corporate Bonds                  
Diversified Telecommunication     Qwest Corp., 5.246%, 6/15/13 (a)         1,500     1,050,000  
Services - 1.3%                      
        Total Corporate Bonds - 1.3%             1,050,000  
        Total Long-Term Investments              
        (Cost - $163,751,362)     - 144.9%             119,679,799  
                    Beneficial      
                    Interest      
        Short-Term Securities             (000)      
        BlackRock Liquidity Series, LLC              
        Cash Sweep Series, 1.64% (b)(c)     USD     643     642,814  
        Total Short-Term Securities              
        (Cost - $642,814) - 0.8%             642,814  
        Total Investments                  
        (Cost - $164,394,176*)     - 145.7%             120,322,613  
        Liabilities in Excess of Other Assets - (45.7)%             (37,714,792)  
        Net Assets - 100.0%                 $ 82,607,821  
                       
 
*     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     $ 164,192,587              
    Gross unrealized appreciation     $ 107,417              
    Gross unrealized depreciation     (43,977,391)              
    Net unrealized depreciation     $ (43,869,974)              

(a) Variable rate security. Rate shown is as of report date.
(b) 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  
    BlackRock Liquidity Series, LLC          
    Cash Sweep Series     $ (1,722,747)     $ 9,559  
(c)     Represents the current yield as of report date.          

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.

7


BlackRock Defined Opportunity Credit Trust              
Schedule of Investments November 30, 2008 (Unaudited)              
            Foreign currency exchange contracts as of November 30, 2008 were as follows:      
                    Unrealized  
    Currency     Currency         Settlement     Appreciation  
    Purchased     Sold         Date     (Depreciation)  
                  USD     9,293,367     EUR     7,360,500     12/10/08     $ (55,705)  
                  EUR     2,765,000     USD     3,563,034     1/21/09     (51,691)  
                  USD     254,176     EUR     200,000     1/21/09     191  
                  USD     1,958,859     GBP     1,239,000     12/10/08     53,414  
                  GBP     420,000     USD     665,602     1/21/09     (19,389)  
                  Total                     $ (73,180)  

Currency Abbreviations:
EUR Euro
GBP British Pound
USD U.S. Dollar
Credit default swaps on traded indexes- sold protection outstanding as of November 30, 2008 were as follows:

                Notional      
    Receivable             Amount     Unrealized  
Issuer     fixed rate     Counterparty     Expiration          (000) 1     Depreciation  
LCDX Corp.       5.75%     Deutsche Bank AG     September              
            2013     EUR      2,500     $ (486,340)  

(1) The maximum potential amount the Fund may be required to pay should a negative credit event take place
as defined under the terms of the agreement.

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:

Level 1 - price quotations in active markets/exchanges for identical securities
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)

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     Other Financial  
Inputs     Securities     Instruments*  
Level 1     -     -  
Level 2     $ 103,695,782     $ (559,520)  
Level 3     16,626,831     -  
Total     $ 120,322,613     $ (559,520)  

* Other financial instruments are swaps and foreign currency
exchange contracts.

8


BlackRock Defined Opportunity Credit Trust
Schedule of Investments November 30, 2008 (Unaudited)
The following is a reconciliation of investments for unobservable inputs (Level 3) were
used in determining fair value:

    Investments in Securities  
 
Balance, as of September 1, 2008     $ 4,841,355  
Accrued premiums     60,037  
Realized gain (loss)     181,455  
Change in unrealized appreciation      
(depreciation)     (7,799,917)  
Net sales     (1,345,186)  
Net transfers in/out of Level 3     20,689,087  
Balance, as of November 30, 2008     $ 16,626,831  

9


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 Defined Opportunity Credit Trust

By: /s/ Donald C. Burke
Donald C. Burke
Chief Executive Officer of
BlackRock Defined Opportunity Credit Trust

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 Defined Opportunity Credit Trust

Date: January 20, 2009

By: /s/ Neal J. Andrews
Neal J. Andrews
Chief Financial Officer (principal financial officer) of
BlackRock Defined Opportunity Credit Trust

Date: January 20, 2009


Blackrock Defined Opportunity Credit Trust Blackrock Defined Opportunity Credit Trust (delisted) (NYSE:BHL)
Historical Stock Chart
From Jun 2024 to Jul 2024 Click Here for more Blackrock Defined Opportunity Credit Trust Blackrock Defined Opportunity Credit Trust (delisted) Charts.
Blackrock Defined Opportunity Credit Trust Blackrock Defined Opportunity Credit Trust (delisted) (NYSE:BHL)
Historical Stock Chart
From Jul 2023 to Jul 2024 Click Here for more Blackrock Defined Opportunity Credit Trust Blackrock Defined Opportunity Credit Trust (delisted) Charts.