| 301 | Gea Oil Drilling LLC | | Oil Operator | Dec 2016 |
| 302 | Gear Petroleum Co Inc | Wichita, KS 67202 | Oil & Gas Operator | Dec 2009 |
| 303 | Geb Operating, LLC | | Oil & Gas Operator | Jan 2025 |
| 304 | Gebhard, Paul Robert | Randolph, NY 14772 | Gas Operator | Dec 2024 |
| 305 | Gec Oil & Gas Co Inc. | | Gas Operator | Dec 1978 |
| 306 | Gec Operating, Inc. | Houston, TX 77024 | Oil & Gas Operator | Feb 2026 |
| 307 | Gecko | Dallas, TX 75205 | Oil & Gas Operator | Mar 2008 |
| 308 | Gecko Inc. | Dallas, TX 75201 | Oil & Gas Operator | Aug 2006 |
| 309 | Gecko Oil & Gas | Brookesmith, TX 76827 | Oil & Gas Operator | Jun 2007 |
| 310 | Ged Oil Corporation | | Oil & Gas Operator | Aug 2012 |
| 311 | Gedco Oil & Gas, Inc. | | Gas Operator | May 1992 |
| 312 | Gee Oil Service LLC | Stafford, KS 67578 | Oil Operator | Feb 2013 |
| 313 | Gee, Fred E. | Topeka, KS 66614 | Oil Operator | May 1998 |
| 314 | Geer I L | Clarendon, PA 16313-0126 | Oil & Gas Operator | Dec 2013 |
| 315 | Geer Production Company | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 2026 |
| 316 | Gei Management Co., Inc. | Houston, TX 77024 | Oil & Gas Operator | Sep 1993 |
| 317 | Geiger Albert J Revocable Trust | Tulsa, OK 74107 | Oil Operator | Sep 1994 |
| 318 | Geigo Co, LLP | | Oil Operator | Dec 2017 |
| 319 | Geiselman, Grover J. | Richmond, TX 77469 | Oil & Gas Operator | Feb 1995 |
| 320 | Geiser Operating, Inc. | Portland, TX 78374 | Oil & Gas Operator | Sep 2019 |
| 321 | Geiser, D. Allen | Portland, TX 78374 | Oil & Gas Operator | Oct 2005 |
| 322 | Geist Oil Operations | | Oil Operator | Aug 2025 |
| 323 | Geitgey Donald W Jr | N Canton, OH 44721 | Oil & Gas Operator | Dec 2024 |
| 324 | Gel Oil & Gas Inc | Wetumka, OK 74883-6238 | Oil & Gas Operator | Jul 2016 |
| 325 | Gel Petroleum, Inc. | Bay City, TX 77414 | Oil & Gas Operator | Feb 2026 |
| 326 | Gelfond, Daniel | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 327 | Gem Oil Company | Albany, TX 76430 | Oil & Gas Operator | Sep 2002 |
| 328 | Gemak Exp Inc | Dayton, OH 45414 | Oil Operator | Dec 1998 |
| 329 | Gemarmi Inc. | Cypress, TX 77433 | Oil & Gas Operator | Feb 2026 |
| 330 | Gemini Corporati | | Oil Operator | Mar 1986 |
| 331 | Gemini Energy Company | Kilgore, TX 75663 | Oil Operator | Feb 2026 |
| 332 | Gemini Energy, Inc. | Kerens, TX 75144 | Oil Operator | Feb 2026 |
| 333 | Gemini Exploration Company | Dallas, TX 75219 | Oil & Gas Operator | Mar 1997 |
| 334 | Gemini Exploration Inc | Oklahoma City, OK 73159 | Oil & Gas Operator | May 2013 |
| 335 | Gemini Explorations, Inc. | | Oil & Gas Operator | Jan 2025 |
| 336 | Gemini Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2025 |
| 337 | Gen-Dor Oil Co. | | Oil & Gas Operator | Nov 2009 |
| 338 | Gen-Dor Oil Comp | | Oil & Gas Operator | Nov 1994 |
| 339 | Gen-Nan Resources & Equip., Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 340 | Gen-Nan Resources & Equip., L.P. | Midland, TX 79702 | Oil & Gas Operator | Jan 2008 |
| 341 | Gen-Sher | Bluegrove, TX 76352 | Oil & Gas Operator | Feb 2005 |
| 342 | Gen-Sher L.L.P. | Bluegrove, TX 76352 | Oil & Gas Operator | Feb 2026 |
| 343 | Gene Cook Inc | Woodward, OK 73801 | Oil & Gas Operator | Dec 2025 |
| 344 | Gene Karlin Company | | Oil Operator | Nov 2015 |
| 345 | Gene McCutchin | | Gas Operator | Aug 1999 |
| 346 | Genecov Group, Inc. The | Tyler, TX 75713 | Oil & Gas Operator | Dec 2002 |
| 347 | Genepa Petroleum Company | Spring, TX 77379 | Oil & Gas Operator | Feb 2026 |
| 348 | General American Oil Co Of Texas | | Oil & Gas Operator | Mar 1983 |
| 349 | General American Oil Co Of TX | | Oil & Gas Operator | Jun 1983 |
| 350 | General Atlantic | | Gas Operator | Jan 1970 |
| 351 | General Atlantic Energy Corp. | | Oil & Gas Operator | Nov 1988 |
| 352 | General Atlantic Resources Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 353 | General Crude Oil Co | Houston, TX 77005 | Oil & Gas Operator | Dec 1979 |
| 354 | General Crude Oil Co Etal | | Oil & Gas Operator | Aug 1979 |
| 355 | General Electric Company | Erie, PA 16531-0001 | Oil & Gas Operator | Sep 1987 |
| 356 | General Energy Resources And Technology Corp | | Oil & Gas Operator | Jan 1998 |
| 357 | General Energy, Inc. | | Oil Operator | Dec 1983 |
| 358 | General Exploration Inc | | Oil & Gas Operator | Aug 2001 |
| 359 | General Minerals Corp | Oklahoma City, OK 73105 | Oil & Gas Operator | Dec 2015 |
| 360 | General New Mexico Inc. | Artesia, NM 882110385 | Oil Operator | Apr 1998 |
| 361 | General Oil And Gas Co. | | Oil Operator | Nov 1999 |
| 362 | General Oil Comp | | Oil & Gas Operator | Nov 1993 |
| 363 | General Oil Company, Inc. | Wichita, KS 67213 | Oil & Gas Operator | Feb 2026 |
| 364 | General Operating Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 365 | General Petroleu | | Oil Operator | Nov 1988 |
| 366 | General Petroleum Corp | Sand Springs, OK 74063-6646 | Oil & Gas Operator | Jul 2015 |
| 367 | General Producing Co | Houston, TX 77002 | Oil & Gas Operator | Jun 1993 |
| 368 | General Production Oil LLC | | Oil Operator | Dec 2025 |
| 369 | General Trading Co Inc | Carrollton, TX 75011-2309 | Oil Operator | Jul 2017 |
| 370 | Genesis Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 1995 |
| 371 | Genesis Exploration & Production Co., LLC | | Oil & Gas Operator | Dec 2019 |
| 372 | Genesis Exploration LLC | FT Stockton, TX 79735 | Oil & Gas Operator | Feb 2026 |
| 373 | Genesis Gas & Oil Colorado LLC | | Oil & Gas Operator | Dec 2023 |
| 374 | Genesis Gas & Oil LLC | Kansas City, MO 64108 | Oil & Gas Operator | Aug 2011 |
| 375 | Genesis Hydrocarbon | | Oil & Gas Operator | Dec 2020 |
| 376 | Genesis Inc | Seminole, OK 74818-1647 | Oil & Gas Operator | Sep 2014 |
| 377 | Genesis Oil & Gas, LLC | Grantsville, WV 26147 | Gas Operator | Dec 2006 |
| 378 | Genesis Petroleum Corporation | Fort Worth, TX 76116-7151 | Oil & Gas Operator | Mar 2011 |
| 379 | Genesis Petroleum LLC | Andrews, TX 79714 | Oil & Gas Operator | Nov 2025 |
| 380 | Genesis Producing Company | Houston, TX 77024 | Oil & Gas Operator | Oct 2007 |
| 381 | Genesis Producing Company, L.P. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Dec 2017 |
| 382 | Genesis Production Company | | Oil & Gas Operator | May 1991 |
| 383 | Genesis Resources | Albuquerque, NM 87104 | Gas Operator | May 2013 |
| 384 | Genesis Resources LLC | Parkersburg, WV 26104 | Oil & Gas Operator | Dec 2019 |
| 385 | Genesis St Operating LLC | Kansas City, MO 64108 | Oil & Gas Operator | Feb 2026 |
| 386 | Genesis Well Service | Colleyville, TX 76034 | Oil Operator | Feb 2026 |
| 387 | Genie Corporation | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 388 | Genie Oil & Gas Corporation | Broken Arrow, OK 74013-3783 | Oil & Gas Operator | Nov 2025 |
| 389 | Genie Oil Company | Lytle, TX 78052 | Oil & Gas Operator | Feb 2026 |
| 390 | Genie Oil Company "A" | Devine, TX 78016 | Oil Operator | Dec 2021 |
| 391 | Genmar Oil & Gas, Inc. | | Oil & Gas Operator | May 1986 |
| 392 | Gennesaret Investments, LLC | Burleson, TX 76028 | Oil & Gas Operator | Aug 2024 |
| 393 | Geno Oil & Gas Corp | | Oil & Gas Operator | Sep 2009 |
| 394 | Genzer Jim W | Sapulpa, OK 74067-1252 | Oil & Gas Operator | May 2013 |
| 395 | Geo American Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2025 |
| 396 | Geo Asset Management, Inc. | Katy, TX 77493 | Oil & Gas Operator | Feb 2026 |
| 397 | Geo Co., Inc. | Austin, TX 78745 | Oil Operator | Apr 1988 |
| 398 | Geo Energy & Compression, Inc. | Corpus Chrsti, TX 78404 | Oil & Gas Operator | Dec 2012 |
| 399 | Geo Energy Inc | Dublin, OH 43017 | Oil & Gas Operator | Dec 1989 |
| 400 | Geo Energy, LLC | Sand Fork, WV 26430 | Oil & Gas Operator | Dec 2021 |