| 3201 | Black Stone Energy Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2004 |
| 3202 | Black Stone Energy Company, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 3203 | Black Stone Oil Company | Dallas, TX 75244 | Oil & Gas Operator | Feb 1997 |
| 3204 | Black Stone Petroleum LLC | Wichita, KS 67206 | Oil Operator | Jul 2019 |
| 3205 | Black Strata LLC | Weatherford, TX 76086 | Oil Operator | Feb 2026 |
| 3206 | Black Swan Opco, LLC | Edmond, OK 73013 | Oil & Gas Operator | Feb 2026 |
| 3207 | Black Swan Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2023 |
| 3208 | Black Tea Oil, LLC | Wichita, KS 67206 | Oil Operator | Sep 2025 |
| 3209 | Black Thunder Oil LLC | Gillette, WY 82717 | Oil & Gas Operator | Dec 2025 |
| 3210 | Black Top Operating, LLC | Midland, TX 79706 | Oil & Gas Operator | Feb 2026 |
| 3211 | Black Velvet Petro. Co. | | Oil & Gas Operator | Dec 2007 |
| 3212 | Black W K Incorp | | Oil & Gas Operator | Sep 1991 |
| 3213 | Black W K Produc | | Oil & Gas Operator | Aug 1991 |
| 3214 | Black Warrior Methane Corp. | | Gas Operator | Dec 2025 |
| 3215 | Black Warrior Petroleum Co., Inc. | | Gas Operator | Jun 1984 |
| 3216 | Black Wendell D | Atwood, OK 74827-9706 | Oil & Gas Operator | Jan 2009 |
| 3217 | Black'S Oil & Gas | Borger, TX 79008 | Oil & Gas Operator | Feb 2026 |
| 3218 | Black, Frank J., Oil Operations, Inc. | Overland Park, KS 66213 | Oil & Gas Operator | Dec 2009 |
| 3219 | Black, Karl T. | Paradise, TX 76073 | Oil & Gas Operator | Aug 2003 |
| 3220 | Black-Travis, Inc. | Paola, KS 66071 | Oil Operator | Sep 2025 |
| 3221 | Blackbeard Operating East LLC | Midland, TX 79701-4532 | Oil & Gas Operator | Dec 2020 |
| 3222 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Feb 2026 |
| 3223 | Blackberry Oil Company | Jennings, OK 74038-0068 | Oil & Gas Operator | Dec 2002 |
| 3224 | Blackbird Company | Shreveport, LA 71106 | Oil & Gas Operator | Jan 2025 |
| 3225 | Blackbird Oil Co. | Great Bend, KS 67530 | Oil Operator | Feb 1996 |
| 3226 | Blackbird R 22 Og L.L.C. | Eastland, TX 76448 | Gas Operator | Feb 2026 |
| 3227 | Blackbrush O & G, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Apr 2012 |
| 3228 | Blackbrush O & G, LLC | San Antonio, TX 78259 | Oil & Gas Operator | Feb 2026 |
| 3229 | Blackburn Oil & Gas, Inc. | Kinsley, KS 67547 | Oil & Gas Operator | Sep 2004 |
| 3230 | Blackburn Operating Co., Inc. | | Oil & Gas Operator | Jun 2008 |
| 3231 | Blackcat Oil Company | Glencoe, OK 74032 | Oil & Gas Operator | Dec 2025 |
| 3232 | Blackfire Operating LLC | Oklahoma City, OK 73116-4223 | Oil & Gas Operator | Dec 2025 |
| 3233 | Blackflat Oil Company LLC | Lubbock, TX 79424 | Oil Operator | Feb 2026 |
| 3234 | Blackhawk Energy | | Oil Operator | Dec 1993 |
| 3235 | Blackhawk Energy LLC | Greenville, KY 42345 | Oil & Gas Operator | Jan 2024 |
| 3236 | Blackhawk Explor | | Oil Operator | Jan 1990 |
| 3237 | Blackhawk Exploration, Inc. | Wichita, KS 67214 | Oil & Gas Operator | May 2020 |
| 3238 | Blackhawk Oil Co | Ottawa, KS 66067 | Oil & Gas Operator | Jan 2011 |
| 3239 | Blackhawk Production Company | | Oil Operator | Sep 2025 |
| 3240 | Blackhill Energy LLC | Canonsburg, PA 15317 | Gas Operator | Dec 2025 |
| 3241 | Blackhorn USA, LLC | Edwardsville, IL 62025 | Oil Operator | Dec 2023 |
| 3242 | Blackhorse Energy, LLC Of Texas | | Oil Operator | Jan 2025 |
| 3243 | Blackjack Creek LLC | Edmond, OK 73034-4195 | Oil & Gas Operator | Aug 2019 |
| 3244 | Blackjack Extraction LLC | Woodson, TX 76491 | Oil Operator | Feb 2026 |
| 3245 | Blackjack Oak Production,LLC | | Oil Operator | Nov 2025 |
| 3246 | Blackjack Oil & Gas, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | Feb 2026 |
| 3247 | Blackjack Oil LTD | Denver, CO 80223 | Oil Operator | May 1996 |
| 3248 | Blackjack Oil, Inc. | Las Vegas, NV 89128 | Oil & Gas Operator | Nov 2019 |
| 3249 | Blackjack Operating L. L. C. | Cibolo, TX 78108 | Oil & Gas Operator | Feb 2026 |
| 3250 | Blackjack Supply Company | Edmond, OK 73013-1144 | Oil & Gas Operator | May 2012 |
| 3251 | Blackland Oil & Gas | Portland, TX 78374 | Oil & Gas Operator | Aug 1997 |
| 3252 | Blackmar, Jim Oil Operator | Luling, TX 78648 | Oil & Gas Operator | Jan 2021 |
| 3253 | Blackmun Family Partners, L.P. | Dallas, TX 75206 | Oil & Gas Operator | Feb 2026 |
| 3254 | Blackridge Resource Partners LLC | Lexington, KY 40507 | Oil & Gas Operator | Dec 2022 |
| 3255 | Blackrock Drilling, LLC | Abilene, TX 79606 | Oil Operator | Feb 2026 |
| 3256 | Blackrock Energy Corp | | Oil & Gas Operator | Dec 2025 |
| 3257 | Blackrock Energy LLC | Wagoner, OK 74467 | Oil Operator | Apr 2025 |
| 3258 | Blackrock Enterprises, LLC | Salem, WV 26426 | Oil & Gas Operator | Dec 2021 |
| 3259 | Blackrock Operating, LLC | Tuscola, TX 79562 | Oil & Gas Operator | Feb 2026 |
| 3260 | Blackshear, Charley | Winters, TX 79567 | Oil & Gas Operator | Oct 1998 |
| 3261 | Blackstock Petroleum Co | Tulsa, OK 74136-4940 | Oil & Gas Operator | Oct 1994 |
| 3262 | Blackstone Drill | | Oil & Gas Operator | Jan 1989 |
| 3263 | Blackstone Drilling, Inc. | McPherson, KS 67460 | Gas Operator | Nov 2011 |
| 3264 | Blackstone Energy Services LLC | Christoval, TX 76935 | Oil & Gas Operator | Feb 2026 |
| 3265 | Blackstone Oil & Gas (Kansas), LLC | Houston, TX 77002 | Gas Operator | Sep 2019 |
| 3266 | Blackstone Operating | Red Lodge, MT 59068 | Gas Operator | Dec 2006 |
| 3267 | Blackstone Operating Inc | Red Lodge, MT 59068 | Gas Operator | Nov 2009 |
| 3268 | Blackwater Oil & Gas Corporation | Colleyville, TX 76034 | Oil & Gas Operator | May 2018 |
| 3269 | Blackwelder Oil | MC Camey, TX 79752 | Oil Operator | Feb 2026 |
| 3270 | Blackwell BMC, LLC | Dallas, TX 75204 | Oil & Gas Operator | Jan 2022 |
| 3271 | Blackwell BMC, LP | Dallas, TX 75252 | Oil & Gas Operator | Mar 2007 |
| 3272 | Blackwell Drilling Co. | Cameron, TX 76520 | Oil & Gas Operator | Nov 2004 |
| 3273 | Blackwell Exp & Development, LLC | Dallas, TX 75252 | Oil & Gas Operator | Nov 2023 |
| 3274 | Blackwell Exploration & Development LLC | Dallas, TX 75252-5637 | Oil & Gas Operator | Jan 2024 |
| 3275 | Blackwell Gas Company | | Gas Operator | Jun 1997 |
| 3276 | Blackwell Operating Company | Houston, TX 77227 | Oil & Gas Operator | Jun 2007 |
| 3277 | Blackwell Operating LLC | Andrews, TX 79714 | Oil & Gas Operator | May 2025 |
| 3278 | Blackwood & Nichols LTD PTR | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 1996 |
| 3279 | Blade Oil Co. | Borger, TX 79007 | Oil & Gas Operator | Jun 1994 |
| 3280 | Blaik Oil Company | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2009 |
| 3281 | Blair Bill Inc | New Springfield, OH 44443 | Oil & Gas Operator | Dec 1994 |
| 3282 | Blair Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2011 |
| 3283 | Blair H H Oil Co | | Oil Operator | Feb 1988 |
| 3284 | Blair Harold L | Petrolia, PA 16050-1809 | Oil & Gas Operator | Dec 2020 |
| 3285 | Blair Oil Company | Kingfisher, OK 73750-1213 | Oil & Gas Operator | Dec 2025 |
| 3286 | Blair Raymond L SR | Kittanning, PA 16201-4957 | Oil & Gas Operator | Dec 2025 |
| 3287 | Blair, Jack N. | Midland, TX 79702 | Oil & Gas Operator | May 1996 |
| 3288 | Blair, R. W. | FT Stockton, TX 79735 | Oil & Gas Operator | Dec 2009 |
| 3289 | Blair, W Lynn | Lewisburg, KY 42256 | Oil & Gas Operator | Dec 2022 |
| 3290 | Blake Exploration | Hays, KS 67601 | Oil Operator | Oct 2007 |
| 3291 | Blake Exploration, LLC | Bogue, KS 67625 | Oil Operator | Sep 2025 |
| 3292 | Blake Oil & Gas Corporation | Midland, TX 79701 | Oil & Gas Operator | May 2004 |
| 3293 | Blake Production Company, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2026 |
| 3294 | Blake Production LLC | Gillette, WY 82717 | Oil & Gas Operator | Jan 2026 |
| 3295 | Blakely Land & Exploration Co. | | Oil & Gas Operator | Apr 1991 |
| 3296 | Blakemore Oil & Gas In Okla | Allen, TX 75002-5008 | Oil Operator | Aug 2013 |
| 3297 | Blakemore, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Dec 2012 |
| 3298 | Blakenergy Operating, LLC | Spring, TX 77386 | Oil & Gas Operator | Feb 2026 |
| 3299 | Blalack, James William | Schertz, TX 78154 | Oil & Gas Operator | Feb 2026 |
| 3300 | Blanchard Henry | Tupelo, OK 74572 | Oil & Gas Operator | Mar 2023 |