| 301 | Gemini Exploration Company | Dallas, TX 75219 | Oil & Gas Operator | Mar 1997 |
| 302 | Gemini Exploration Inc | Oklahoma City, OK 73159 | Oil & Gas Operator | May 2013 |
| 303 | Gemini Explorations, Inc. | | Oil & Gas Operator | Jan 2024 |
| 304 | Gemini Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2024 |
| 305 | Gen-Dor Oil Co. | | Oil & Gas Operator | Nov 2009 |
| 306 | Gen-Dor Oil Comp | | Oil & Gas Operator | Nov 1994 |
| 307 | Gen-Nan Resources & Equip., Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 308 | Gen-Nan Resources & Equip., L.P. | Midland, TX 79702 | Oil & Gas Operator | Jan 2008 |
| 309 | Gen-Sher | Bluegrove, TX 76352 | Oil & Gas Operator | Feb 2005 |
| 310 | Gen-Sher L.L.P. | Bluegrove, TX 76352 | Oil & Gas Operator | Apr 2024 |
| 311 | Gene Cook Inc | Woodward, OK 73802-0689 | Oil & Gas Operator | Jan 2024 |
| 312 | Gene Karlin Company | | Oil Operator | Nov 2015 |
| 313 | Gene McCutchin | | Gas Operator | Aug 1999 |
| 314 | Genecov Group, Inc. The | Tyler, TX 75713 | Oil & Gas Operator | Dec 2002 |
| 315 | Genepa Petroleum Company | Spring, TX 77379 | Oil & Gas Operator | Apr 2024 |
| 316 | General American Oil Co Of Texas | | Oil & Gas Operator | Mar 1983 |
| 317 | General American Oil Co Of TX | | Oil & Gas Operator | Jun 1983 |
| 318 | General Atlantic | | Gas Operator | Dec 1969 |
| 319 | General Atlantic Energy Corp. | | Oil & Gas Operator | Nov 1988 |
| 320 | General Atlantic Resources Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 321 | General Crude Oil Co | Houston, TX 77005 | Oil & Gas Operator | Dec 1979 |
| 322 | General Crude Oil Co Etal | | Oil & Gas Operator | Aug 1979 |
| 323 | General Electric Company | | Oil & Gas Operator | Sep 1987 |
| 324 | General Energy Resources And Technology Corp | | Oil & Gas Operator | Jan 1998 |
| 325 | General Energy, Inc. | | Oil Operator | Dec 1983 |
| 326 | General Exploration Inc | | Oil & Gas Operator | Aug 2001 |
| 327 | General Minerals Corp | Oklahoma City, OK 73105 | Oil & Gas Operator | Dec 2015 |
| 328 | General New Mexico Inc. | Artesia, NM 882110385 | Oil Operator | Apr 1998 |
| 329 | General Oil And Gas Co. | | Oil Operator | Nov 1999 |
| 330 | General Oil Comp | | Oil & Gas Operator | Nov 1993 |
| 331 | General Oil Company, Inc. | Wichita, KS 67213 | Oil & Gas Operator | Apr 2024 |
| 332 | General Operating Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2024 |
| 333 | General Petroleu | | Oil Operator | Nov 1988 |
| 334 | General Petroleum Corp | Sand Springs, OK 74063-6646 | Oil & Gas Operator | Jul 2015 |
| 335 | General Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jun 1993 |
| 336 | General Production Oil LLC | | Oil Operator | Dec 2023 |
| 337 | General Trading Co Inc | Carrollton, TX 75011-2309 | Oil Operator | Jul 2017 |
| 338 | Genesis Crude Oil LP | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
| 339 | Genesis Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 1995 |
| 340 | Genesis Exploration & Production Co., LLC | | Oil & Gas Operator | Dec 2019 |
| 341 | Genesis Exploration LLC | FT Stockton, TX 79735 | Oil & Gas Operator | Apr 2024 |
| 342 | Genesis Gas & Oil Colorado LLC | | Oil & Gas Operator | Dec 2023 |
| 343 | Genesis Gas & Oil LLC | Kansas City, MO 64108 | Oil & Gas Operator | Aug 2011 |
| 344 | Genesis Inc | Seminole, OK 74818-1647 | Oil & Gas Operator | Sep 2014 |
| 345 | Genesis Petroleum Corp. | Fort Worth, TX 76116-7151 | Oil & Gas Operator | Mar 2011 |
| 346 | Genesis Petroleum LLC | | Oil & Gas Operator | Dec 2023 |
| 347 | Genesis Producing Company | Houston, TX 77024 | Oil & Gas Operator | Oct 2007 |
| 348 | Genesis Producing Company, L.P. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Dec 2017 |
| 349 | Genesis Production Company | | Oil & Gas Operator | May 1991 |
| 350 | Genesis Resources LLC | Parkersburg, WV 26104 | Oil & Gas Operator | Dec 2019 |
| 351 | Genesis St Operating LLC | Kansas City, MO 64108 | Oil & Gas Operator | Apr 2024 |
| 352 | Genesis Well Service | Colleyville, TX 76034 | Oil Operator | Apr 2024 |
| 353 | Genie Corporation | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 354 | Genie Oil & Gas Corporation | Broken Arrow, OK 74013-3783 | Oil & Gas Operator | Dec 2023 |
| 355 | Genie Oil Company | Devine, TX 78016 | Oil & Gas Operator | Apr 2024 |
| 356 | Genie Oil Company "A" | Devine, TX 78016 | Oil Operator | Dec 2021 |
| 357 | Genmar Oil & Gas, Inc. | | Oil & Gas Operator | May 1986 |
| 358 | Gennesaret Investments, LLC | Burleson, TX 76028 | Oil & Gas Operator | Apr 2024 |
| 359 | Geno Oil & Gas Corp | | Oil & Gas Operator | Sep 2009 |
| 360 | Genzer Jim W | Sapulpa, OK 74067-1252 | Oil & Gas Operator | May 2013 |
| 361 | Geo American Resources Inc | Tulsa, OK 74130-1575 | Oil & Gas Operator | Dec 2023 |
| 362 | Geo Asset Management, Inc. | Katy, TX 77493 | Oil & Gas Operator | Apr 2024 |
| 363 | Geo Co., Inc. | Austin, TX 78745 | Oil Operator | Apr 1988 |
| 364 | Geo Energy Inc | Dublin, OH 43017 | Oil & Gas Operator | Dec 1989 |
| 365 | Geo Energy, LLC | Sand Fork, WV 26430 | Oil & Gas Operator | Dec 2021 |
| 366 | Geo Engineering Inc | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 367 | Geo Exploration LLC | Oklahoma City, OK 73120-7116 | Oil & Gas Operator | Nov 2023 |
| 368 | Geo Investment Inc. | | Oil & Gas Operator | Dec 2003 |
| 369 | Geo Kat LLC | Millersport, OH 43046 | Oil & Gas Operator | Dec 2023 |
| 370 | Geo Logic Environmental SRVCS LC | Kilgore, TX 75663 | Oil Operator | Dec 2011 |
| 371 | Geo Oil & Gas Service, A General Partnership | Iola, KS 66749 | Oil & Gas Operator | Dec 2019 |
| 372 | Geo Oil Co Inc | Bloomington, IN 47402 | Oil Operator | Dec 2021 |
| 373 | Geo Petroleum, Inc. | Borger, TX 79007 | Oil & Gas Operator | Apr 2024 |
| 374 | Geo-Earth Exploration Co Inc | Stillwater, OK 74076 | Oil & Gas Operator | May 1994 |
| 375 | Geo-Graphic Production, Inc. | Gonzales, TX 78629 | Oil & Gas Operator | Apr 2024 |
| 376 | Geo-Sax Petroleum | | Oil & Gas Operator | Dec 2023 |
| 377 | Geo-Vest Of Texas, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2008 |
| 378 | Geo. R. Shaw Living Trust | Wichita, KS 67202 | Gas Operator | Dec 2009 |
| 379 | Geodessa Corpora | | Oil Operator | Jul 1984 |
| 380 | Geodominion Petroleum | Corpus Chrsti, TX 78403 | Oil & Gas Operator | May 2012 |
| 381 | Geodynamics Oil & Gas, Inc | | Oil & Gas Operator | Feb 1983 |
| 382 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 383 | Geodyne Resources Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2010 |
| 384 | Geoex Resources Inc | | Oil & Gas Operator | Jan 1997 |
| 385 | Geoex, Inc. | Williamson, WV 25661 | Oil & Gas Operator | Dec 2021 |
| 386 | Geolinear Co. | | Oil & Gas Operator | Jul 1996 |
| 387 | Geological & Engineering Consultants | | Oil & Gas Operator | Jan 2024 |
| 388 | Geomark Resources, L.L.C. | Lubbock, TX 79453 | Oil & Gas Operator | Apr 2024 |
| 389 | Geomeg Energy Operating Co., LLC | Aransas Pass, TX 78336 | Oil & Gas Operator | Apr 2024 |
| 390 | Geomeg Operating, LLC | Dripping SPGS, TX 78620 | Oil Operator | Nov 2010 |
| 391 | Geomet Operating Company Inc | | Gas Operator | Dec 2013 |
| 392 | Geonatural Resources, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Apr 2024 |
| 393 | Geopetra Partners, LLC | Irving, TX 75063 | Oil & Gas Operator | Apr 2024 |
| 394 | Geopetro Inc | Worthington, OH 43085 | Oil & Gas Operator | Dec 1994 |
| 395 | Geopetro LLC | Worthington, OH 43085-2316 | Oil & Gas Operator | Jan 2024 |
| 396 | Geoquest Energy Inc | Enid, OK 73706-0216 | Oil & Gas Operator | Nov 2015 |
| 397 | Georesources, Inc. | Williston, ND 58802-1505 | Oil & Gas Operator | Dec 2014 |
| 398 | George A. Haddad, Jr. | | Oil & Gas Operator | Mar 2000 |
| 399 | George A. Jones | | Oil & Gas Operator | Jan 2018 |
| 400 | George Barron | | Oil & Gas Operator | Jan 1998 |