| 3001 | Black Jack Well Service, Inc. | Somerset, TX 78069 | Oil & Gas Operator | Aug 2003 |
| 3002 | Black Jewel Resources LTD Co | Berryville, AR 72616-0538 | Oil & Gas Operator | Dec 2014 |
| 3003 | Black Lava Operating LLC | | Oil & Gas Operator | Feb 2026 |
| 3004 | Black Mesa Energy LLC | Tulsa, OK 74103-4334 | Oil & Gas Operator | Feb 2026 |
| 3005 | Black Mountain Oil & Gas II LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2021 |
| 3006 | Black Mountain Oil Co. | | Oil & Gas Operator | Dec 1999 |
| 3007 | Black Mountain Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | May 2026 |
| 3008 | Black Mountain Petroleum | Mogadore, OH 44260 | Oil & Gas Operator | Dec 2025 |
| 3009 | Black Mountain STX I LLC | Fort Worth, TX 76102 | Oil & Gas Operator | May 2026 |
| 3010 | Black Mountain SWD LP | Fort Worth, TX 76102 | Oil & Gas Operator | May 2026 |
| 3011 | Black Oak Exploration, LLC | Denver, CO 80210 | Oil & Gas Operator | Dec 2025 |
| 3012 | Black Oil Company, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2010 |
| 3013 | Black Pearl Exploration, L.L.C. | Houston, TX 77095 | Oil & Gas Operator | May 2015 |
| 3014 | Black Pearl Operating Comp., LLC | Houston, TX 77057 | Oil Operator | May 2026 |
| 3015 | Black Petroleum | | Oil Operator | Sep 1989 |
| 3016 | Black Petroleum Company | Wichita, KS 67277 | Oil Operator | Jan 2004 |
| 3017 | Black Pool Energy, LP | Houston, TX 77070 | Oil & Gas Operator | Jul 2024 |
| 3018 | Black Resources | Borger, TX 79008 | Oil & Gas Operator | May 2026 |
| 3019 | Black Resources, Inc. | Granbury, TX 76049 | Oil & Gas Operator | Mar 2008 |
| 3020 | Black River Oil Corp And Golden Petroleum Corp | | Oil & Gas Operator | Dec 1989 |
| 3021 | Black River Operating LLC | Keller, TX 76248 | Oil & Gas Operator | May 2026 |
| 3022 | Black Rock Resources, LLC | Russell, KS 67665 | Oil Operator | Dec 2025 |
| 3023 | Black Sable Energy, LLC | San Antonio, TX 78209 | Oil Operator | Jan 2018 |
| 3024 | Black Sheep Oil & Gas LLC | Odessa, TX 79768 | Oil & Gas Operator | May 2026 |
| 3025 | Black Sheep Operating, LLC | Amarillo, TX 79109 | Oil & Gas Operator | May 2026 |
| 3026 | Black Snake Petroleum, LLC | | Oil & Gas Operator | Oct 2025 |
| 3027 | Black Spot Oil Company, A General Partnership | Great Bend, KS 67530 | Oil Operator | Dec 2009 |
| 3028 | Black Star Energy Inc | | Oil Operator | May 2004 |
| 3029 | Black Star Oil Company | Plano, TX 75094 | Oil & Gas Operator | May 2026 |
| 3030 | Black Star Petro | | Oil Operator | Jul 1995 |
| 3031 | Black Star Petroleum Corp. | Oceanside, NY 11572 | Oil Operator | Oct 1997 |
| 3032 | Black Stone Energy Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2004 |
| 3033 | Black Stone Energy Company, LLC | Houston, TX 77002 | Oil & Gas Operator | May 2026 |
| 3034 | Black Stone Oil Company | Dallas, TX 75244 | Oil & Gas Operator | Feb 1997 |
| 3035 | Black Stone Petroleum LLC | Wichita, KS 67206 | Oil Operator | Jul 2019 |
| 3036 | Black Strata LLC | Weatherford, TX 76086 | Oil Operator | May 2026 |
| 3037 | Black Swan Opco, LLC | Edmond, OK 73013 | Oil & Gas Operator | May 2026 |
| 3038 | Black Swan Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2023 |
| 3039 | Black Tea Oil, LLC | Wichita, KS 67206 | Oil Operator | Dec 2025 |
| 3040 | Black Thunder Oil LLC | Gillette, WY 82717 | Oil & Gas Operator | Feb 2026 |
| 3041 | Black Top Operating, LLC | Midland, TX 79706 | Oil & Gas Operator | May 2026 |
| 3042 | Black Velvet Petro. Co. | | Oil & Gas Operator | Dec 2007 |
| 3043 | Black W K Produc | | Oil & Gas Operator | Aug 1991 |
| 3044 | Black Warrior Methane Corp. | | Gas Operator | Feb 2026 |
| 3045 | Black Wendell D | Atwood, OK 74827-9706 | Oil & Gas Operator | Jan 2009 |
| 3046 | Black'S Oil & Gas | Borger, TX 79008 | Oil & Gas Operator | May 2026 |
| 3047 | Black, Frank J., Oil Operations, Inc. | Overland Park, KS 66213 | Oil & Gas Operator | Dec 2009 |
| 3048 | Black, Karl T. | Paradise, TX 76073 | Oil & Gas Operator | Aug 2003 |
| 3049 | Black-Travis, Inc. | Paola, KS 66071 | Oil Operator | Dec 2025 |
| 3050 | Blackbeard Operating East LLC | Midland, TX 79701-4532 | Oil & Gas Operator | Dec 2020 |
| 3051 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | May 2026 |
| 3052 | Blackberry Oil Company | Jennings, OK 74038-0068 | Oil & Gas Operator | Dec 2002 |
| 3053 | Blackbird Company | Shreveport, LA 71101 | Oil & Gas Operator | Jan 2025 |
| 3054 | Blackbird Oil Co. | Great Bend, KS 67530 | Oil Operator | Feb 1996 |
| 3055 | Blackbird R 22 Og L.L.C. | Eastland, TX 76448 | Gas Operator | May 2026 |
| 3056 | Blackbrush O & G, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Apr 2012 |
| 3057 | Blackbrush O & G, LLC | San Antonio, TX 78259 | Oil & Gas Operator | May 2026 |
| 3058 | Blackburn Oil & Gas, Inc. | Kinsley, KS 67547 | Oil & Gas Operator | Sep 2004 |
| 3059 | Blackburn Operating Co., Inc. | | Oil & Gas Operator | Jun 2008 |
| 3060 | Blackcat Oil Company | Glencoe, OK 74032 | Oil & Gas Operator | Feb 2026 |
| 3061 | Blackfire Operating LLC | Oklahoma City, OK 73116-4223 | Oil & Gas Operator | Feb 2026 |
| 3062 | Blackflat Oil Company LLC | Lubbock, TX 79424 | Oil Operator | May 2026 |
| 3063 | Blackhawk Energy | | Oil Operator | Dec 1993 |
| 3064 | Blackhawk Energy LLC | Greenville, KY 42345 | Oil & Gas Operator | Dec 2024 |
| 3065 | Blackhawk Explor | | Oil Operator | Jan 1990 |
| 3066 | Blackhawk Exploration, Inc. | Wichita, KS 67214 | Oil & Gas Operator | May 2020 |
| 3067 | Blackhawk Oil Co | Ottawa, KS 66067 | Oil & Gas Operator | Jan 2011 |
| 3068 | Blackhawk Production Company | | Oil Operator | Dec 2025 |
| 3069 | Blackhill Energy LLC | Canonsburg, PA 15317 | Gas Operator | Feb 2026 |
| 3070 | Blackhorn USA, LLC | Edwardsville, IL 62025 | Oil Operator | Dec 2024 |
| 3071 | Blackhorse Energy, LLC Of Texas | | Oil Operator | Jan 2025 |
| 3072 | Blackjack Extraction LLC | Woodson, TX 76491 | Oil Operator | May 2026 |
| 3073 | Blackjack Oak Production,LLC | | Oil Operator | Dec 2025 |
| 3074 | Blackjack Oil & Gas, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | May 2026 |
| 3075 | Blackjack Oil LTD | Denver, CO 80223 | Oil Operator | May 1996 |
| 3076 | Blackjack Oil, Inc. | Las Vegas, NV 89128 | Oil & Gas Operator | Nov 2019 |
| 3077 | Blackjack Operating L. L. C. | Cibolo, TX 78108 | Oil & Gas Operator | May 2026 |
| 3078 | Blackjack Supply Company | Edmond, OK 73013-1144 | Oil & Gas Operator | May 2012 |
| 3079 | Blackland Oil & Gas | Portland, TX 78374 | Oil & Gas Operator | Aug 1997 |
| 3080 | Blackmar, Jim Oil Operator | Luling, TX 78648 | Oil & Gas Operator | Jan 2021 |
| 3081 | Blackmun Family Partners, L.P. | Dallas, TX 75206 | Oil & Gas Operator | May 2026 |
| 3082 | Blackridge Resource Partners LLC | Lexington, KY 40507 | Oil & Gas Operator | Dec 2024 |
| 3083 | Blackrock Drilling, LLC | Abilene, TX 79606 | Oil Operator | May 2026 |
| 3084 | Blackrock Energy Corp | | Oil & Gas Operator | Jan 2026 |
| 3085 | Blackrock Energy LLC | Wagoner, OK 74467 | Oil Operator | Apr 2025 |
| 3086 | Blackrock Enterprises, LLC | Salem, WV 26426 | Oil & Gas Operator | Dec 2021 |
| 3087 | Blackrock Operating, LLC | Tuscola, TX 79562 | Oil & Gas Operator | May 2026 |
| 3088 | Blackshear, Charley | Winters, TX 79567 | Oil & Gas Operator | Oct 1998 |
| 3089 | Blackstock Petroleum Co | Tulsa, OK 74136-4940 | Oil & Gas Operator | Oct 1994 |
| 3090 | Blackstone Drill | | Oil & Gas Operator | Jan 1989 |
| 3091 | Blackstone Drilling, Inc. | McPherson, KS 67460 | Gas Operator | Nov 2011 |
| 3092 | Blackstone Energy Services LLC | Christoval, TX 76935 | Oil & Gas Operator | May 2026 |
| 3093 | Blackstone Operating | Red Lodge, MT 59068 | Gas Operator | Dec 2006 |
| 3094 | Blackstone Operating Inc | Red Lodge, MT 59068 | Gas Operator | Nov 2009 |
| 3095 | Blackwater Oil & Gas Corporation | Colleyville, TX 76034 | Oil & Gas Operator | May 2018 |
| 3096 | Blackwelder Oil | MC Camey, TX 79752 | Oil Operator | May 2026 |
| 3097 | Blackwell BMC, LLC | Dallas, TX 75204 | Oil & Gas Operator | Jan 2022 |
| 3098 | Blackwell BMC, LP | Dallas, TX 75252 | Oil & Gas Operator | Mar 2007 |
| 3099 | Blackwell Drilling Co. | Cameron, TX 76520 | Oil & Gas Operator | Nov 2004 |
| 3100 | Blackwell Exp & Development, LLC | Dallas, TX 75252 | Oil & Gas Operator | Nov 2023 |