| 2901 | Bke-A, L L C | | Oil & Gas Operator | Jul 1999 |
| 2902 | Bke-Theall, LLC | | Oil & Gas Operator | Feb 2000 |
| 2903 | BKJ Oil, LLC | Graham, TX 76450 | Oil & Gas Operator | May 2024 |
| 2904 | BKK Prospecting LTD | Warren, OH 44481 | Oil & Gas Operator | Dec 1991 |
| 2905 | BKM Production | Gainesville, TX 76240 | Oil & Gas Operator | May 2024 |
| 2906 | BKN Oil & Gas, Inc. | Port Lavaca, TX 77979 | Gas Operator | Aug 1997 |
| 2907 | BKR Operating LLC | | Oil & Gas Operator | Jan 2024 |
| 2908 | BKV Barnett, LLC | Fort Worth, TX 76106 | Oil & Gas Operator | May 2024 |
| 2909 | BKV North Texas, LLC | Fort Worth, TX 76106 | Oil & Gas Operator | May 2024 |
| 2910 | BKV Opr LLC | Tunkhannock, PA 18657 | Gas Operator | Feb 2024 |
| 2911 | BKV Ventures, LLC | | Oil & Gas Operator | Nov 2020 |
| 2912 | BL Production, LLC | Abilene, TX 79606 | Oil Operator | May 2024 |
| 2913 | Black & White Oper. | Thayer, KS 66776 | Oil Operator | Aug 1998 |
| 2914 | Black Anvil Operating LLC | | Oil & Gas Operator | Jan 2024 |
| 2915 | Black Arrow Operating, LLC | Dennis, TX 76439 | Oil & Gas Operator | May 2024 |
| 2916 | Black Aubrey C | Dallas, TX 75206 | Oil & Gas Operator | Nov 2002 |
| 2917 | Black Badger Energy LLC. | | Oil Operator | Mar 2024 |
| 2918 | Black Bandana LLC | Santo, TX 76472 | Oil & Gas Operator | May 2024 |
| 2919 | Black Bank LLC | Billings, MT 59103 | Oil Operator | Mar 2024 |
| 2920 | Black Bayou Gas Processing, Inc. | | Oil Operator | Dec 2023 |
| 2921 | Black Bayou Gas Systems, Inc. | | Oil Operator | Feb 2009 |
| 2922 | Black Bayou Management Co Inc. | | Oil & Gas Operator | Aug 1980 |
| 2923 | Black Bayou Operating, LLC | Fort Worth, TX 76116 | Oil & Gas Operator | Jan 2024 |
| 2924 | Black Bayou Petroleum | | Oil Operator | Jul 1999 |
| 2925 | Black Bayou Resources, Inc. | | Oil & Gas Operator | Jun 1992 |
| 2926 | Black Bear Oil Corporation | Las Vegas, NV 89128 | Oil & Gas Operator | Feb 2024 |
| 2927 | Black Bear Properties LLC | Oklahoma City, OK 73156-1904 | Oil & Gas Operator | Feb 2013 |
| 2928 | Black Coal Resources Company | Fort Washakie, WY 82514 | Oil & Gas Operator | Dec 1991 |
| 2929 | Black Creek Energy, LLC | | Oil & Gas Operator | Dec 2023 |
| 2930 | Black Creek Exploration LLC | | Oil & Gas Operator | Jan 2024 |
| 2931 | Black Creek Oil Company, LLC | Yancey, TX 78886 | Oil Operator | May 2024 |
| 2932 | Black Creek Production Co., Inc. | Driftwood, TX 78619 | Oil & Gas Operator | Feb 2000 |
| 2933 | Black Dahlia Oil & Gas Co. | Glendale, CA 91208 | Oil Operator | Jan 2024 |
| 2934 | Black Diamond Energy Inc | Pittsburgh, PA 15237 | Gas Operator | May 2016 |
| 2935 | Black Diamond Energy Of Delaware Inc | Buffalo, WY 82834 | Oil & Gas Operator | Apr 2024 |
| 2936 | Black Diamond Energy, LLC | | Oil & Gas Operator | Nov 2008 |
| 2937 | Black Diamond Minerals LLC | | Oil & Gas Operator | Jun 2014 |
| 2938 | Black Diamond Oi | | Oil Operator | Dec 1996 |
| 2939 | Black Diamond Oil, Inc. | Hays, KS 67601 | Oil Operator | Apr 2019 |
| 2940 | Black Diamond Operating Co., LLC | Kilgore, TX 75662 | Oil & Gas Operator | Sep 2009 |
| 2941 | Black Dome Energ | | Oil & Gas Operator | Dec 1996 |
| 2942 | Black Dome Energy Corporation | Golden, CO 80401 | Oil & Gas Operator | Dec 2019 |
| 2943 | Black Dot Oil Inc | Skiatook, OK 74070-0352 | Oil & Gas Operator | Jan 2024 |
| 2944 | Black Draw Energy LLC | Cypress, TX 77433 | Oil & Gas Operator | May 2024 |
| 2945 | Black Elk Energy Offshore Op LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | May 2024 |
| 2946 | Black Elk Energy Offshore Operations LLC | | Oil & Gas Operator | Jun 2016 |
| 2947 | Black Energy LLC | | Oil Operator | Jan 2024 |
| 2948 | Black Frank J | | Oil & Gas Operator | Jan 1994 |
| 2949 | Black Gold Energy LLC | Monroe, LA 71207 | Oil Operator | Aug 2023 |
| 2950 | Black Gold Oil Co Dba C & L Expl Co | St Louis, MO 63304 | Oil Operator | Dec 2022 |
| 2951 | Black Gold Oil Company | Duncan, OK 73533-1581 | Oil & Gas Operator | Mar 2024 |
| 2952 | Black Gold Operating Co, LLC | Plntersville, TX 77363 | Oil & Gas Operator | May 2024 |
| 2953 | Black Gold Petroleum, LLC | Alice, TX 78333 | Oil Operator | May 2024 |
| 2954 | Black Gold Production Company | | Oil & Gas Operator | Feb 1998 |
| 2955 | Black Gold Properties | Lubbock, TX 79424 | Oil & Gas Operator | Feb 1999 |
| 2956 | Black Gold Services Inc | Casper, WY 82644 | Oil & Gas Operator | Feb 2024 |
| 2957 | Black Gold Well Service | San Angelo, TX 76901 | Oil & Gas Operator | May 2024 |
| 2958 | Black Gold Well Service, Inc. | Towanda, KS 67144 | Oil Operator | Dec 2019 |
| 2959 | Black Hawk Petro | | Oil Operator | Dec 1993 |
| 2960 | Black Hawk Resources | | Oil & Gas Operator | Dec 1984 |
| 2961 | Black Hawk Resources Corporation | Denver, CO 80202 | Oil Operator | Mar 1986 |
| 2962 | Black Hawk Resources, LLC | Bowman, ND 58623 | Oil & Gas Operator | Jun 2011 |
| 2963 | Black Hills Exploration & Production Inc | Newcastle, WY 82701 | Oil & Gas Operator | May 2018 |
| 2964 | Black Hills Gas Resources, Inc. | Rapid City, SD 57702 | Oil & Gas Operator | Aug 2018 |
| 2965 | Black Hills Plateau Production LLC | | Oil & Gas Operator | May 2018 |
| 2966 | Black Hills Wyoming Gas LLC | Rapid City, SD 57709 | Gas Operator | Mar 2024 |
| 2967 | Black Horse Resources, LLC | Oklahoma City, OK 73112 | Oil & Gas Operator | Oct 2023 |
| 2968 | Black Jack Oil Co Inc | Holliday, TX 76366 | Oil & Gas Operator | Feb 2024 |
| 2969 | Black Jack Services, L.L.C. | Bastrop, TX 78602 | Oil & Gas Operator | May 2024 |
| 2970 | Black Jack Well Service, Inc. | Somerset, TX 78069 | Oil & Gas Operator | Aug 2003 |
| 2971 | Black Jewel Resources LTD Co | Berryville, AR 72616-0538 | Oil & Gas Operator | Dec 2014 |
| 2972 | Black Lava Operating LLC | | Oil & Gas Operator | Jan 2024 |
| 2973 | Black Mac Oil, Inc. | Hondo, TX 78861 | Oil Operator | May 2024 |
| 2974 | Black Mesa Energy LLC | | Oil & Gas Operator | Feb 2024 |
| 2975 | Black Mountain Oil & Gas II LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2021 |
| 2976 | Black Mountain Oil Co. | | Oil & Gas Operator | Dec 1999 |
| 2977 | Black Mountain Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | May 2024 |
| 2978 | Black Mountain Petroleum | Mogadore, OH 44260 | Oil & Gas Operator | Dec 2023 |
| 2979 | Black Mountain STX I LLC | Fort Worth, TX 76102 | Oil & Gas Operator | May 2024 |
| 2980 | Black Mountain SWD LP | Fort Worth, TX 76102 | Oil & Gas Operator | May 2024 |
| 2981 | Black Oak Exploration, LLC | Denver, CO 80210 | Oil & Gas Operator | Jan 2024 |
| 2982 | Black Oil Company, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2010 |
| 2983 | Black Pearl Exploration, L.L.C. | Houston, TX 77095 | Oil & Gas Operator | May 2015 |
| 2984 | Black Pearl Operating Comp., LLC | Houston, TX 77057 | Oil Operator | May 2024 |
| 2985 | Black Petroleum | | Oil Operator | Sep 1989 |
| 2986 | Black Petroleum Company | Wichita, KS 67277 | Oil Operator | Jan 2004 |
| 2987 | Black Pool Energy, LP | Houston, TX 77070 | Oil & Gas Operator | May 2024 |
| 2988 | Black Raven Energy Inc | | Oil & Gas Operator | Apr 2017 |
| 2989 | Black Resources | Pampa, TX 79065 | Gas Operator | May 2024 |
| 2990 | Black Resources, Inc. | Granbury, TX 76049 | Oil & Gas Operator | Mar 2008 |
| 2991 | Black River Oil Corp And Golden Petroleum Corp | | Oil & Gas Operator | Dec 1989 |
| 2992 | Black River Operating LLC | Keller, TX 76248 | Oil Operator | May 2024 |
| 2993 | Black Rock Operating, L.L.C. | Fayette, AL 35555 | Oil & Gas Operator | Dec 2023 |
| 2994 | Black Rock Resources, LLC | Russell, KS 67665 | Oil Operator | Jan 2024 |
| 2995 | Black Sable Energy, LLC | San Antonio, TX 78209 | Oil Operator | Jan 2018 |
| 2996 | Black Sheep Oil & Gas LLC | Odessa, TX 79768 | Oil & Gas Operator | May 2024 |
| 2997 | Black Sheep Operating, LLC | Amarillo, TX 79109 | Oil & Gas Operator | May 2024 |
| 2998 | Black Snake Petroleum, LLC | | Oil & Gas Operator | Dec 2023 |
| 2999 | Black Spot Oil Company, A General Partnership | Great Bend, KS 67530 | Oil Operator | Dec 2009 |
| 3000 | Black Star Energy Inc | | Oil Operator | May 2004 |