| 12301 | Gulf Energy Corporation | Denver, CO 80237 | Oil & Gas Operator | Jun 1987 |
| 12302 | Gulf Energy Exploration Corp. | Austin, TX 78716 | Gas Operator | Apr 2025 |
| 12303 | Gulf Exploration Company, Inc. | | Oil & Gas Operator | Dec 2024 |
| 12304 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2025 |
| 12305 | Gulf Oil Corp. | Denver, CO 80201-0599 | Oil & Gas Operator | Dec 2014 |
| 12306 | Gulf Outlet Resources, L.L.C. | | Oil & Gas Operator | Apr 2008 |
| 12307 | Gulf Pine Energy, LP | | Oil & Gas Operator | Jan 2025 |
| 12308 | Gulf Production Company, Inc. | | Oil & Gas Operator | Dec 2024 |
| 12309 | Gulf Production Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Apr 2015 |
| 12310 | Gulf Refining Co. | | Oil Operator | Dec 2006 |
| 12311 | Gulf Shore Petro. Oper. Co., Inc | Woodland HLS, CA 91367 | Oil & Gas Operator | Apr 1998 |
| 12312 | Gulf South Minerals, Inc. | | Oil Operator | Nov 1993 |
| 12313 | Gulf South Oil & Gas, Inc. | | Oil & Gas Operator | Feb 1990 |
| 12314 | Gulf South Operators, Inc. | New Orleans, LA 70130 | Oil & Gas Operator | Oct 2015 |
| 12315 | Gulf South Pipeline Company, LLC | | Oil & Gas Operator | Jan 2025 |
| 12316 | Gulf South Pipeline Company, LP | Houston, TX 77046 | Oil & Gas Operator | Dec 2020 |
| 12317 | Gulf States Exploration Co. | | Oil & Gas Operator | Dec 1983 |
| 12318 | Gulf States Petro. Corp. | Dallas, TX 75202 | Oil & Gas Operator | Apr 2006 |
| 12319 | Gulf States Pipeline Corp. | | Oil & Gas Operator | May 2003 |
| 12320 | Gulf States Production Company | Houston, TX 77027 | Oil & Gas Operator | Aug 1997 |
| 12321 | Gulf Tech Energy LLC | | Oil & Gas Operator | Dec 2002 |
| 12322 | Gulf Tide Oil Company, The | Houston, TX 77008 | Oil & Gas Operator | Jun 1999 |
| 12323 | Gulfland Resources, Inc. | | Oil & Gas Operator | Aug 1996 |
| 12324 | Gulfmark Energy Inc | Houston, TX 77027 | Gas Operator | Apr 2023 |
| 12325 | Gulfport Appalachia LLC | Oklahoma City, OK 73114-2640 | Oil & Gas Operator | Dec 2024 |
| 12326 | Gulfport Energy Corporation | Oklahoma City, OK 73134-5003 | Oil & Gas Operator | Jan 2025 |
| 12327 | Gulfport Midcon LLC | Oklahoma City, OK 73114-8132 | Oil & Gas Operator | Feb 2025 |
| 12328 | Gulfport Oil & Gas Inc. | Gulfport, MS 39501 | Oil & Gas Operator | Apr 2025 |
| 12329 | Gulfstar Energy Group, LLC | Caneyville, KY 42721 | Oil & Gas Operator | Dec 2023 |
| 12330 | Gulfstar Properties, Inc. | San Antonio, TX 78229 | Oil & Gas Operator | Apr 2025 |
| 12331 | Gulfstream Of Louisiana, Inc. | | Oil & Gas Operator | Jan 1996 |
| 12332 | Gulfstream Petroleum Corp. | | Oil & Gas Operator | Feb 2002 |
| 12333 | Gulfstream Resources, Inc. | | Oil & Gas Operator | May 1996 |
| 12334 | Gulftex Energy II, LP | San Antonio, TX 78258 | Oil & Gas Operator | Jan 2013 |
| 12335 | Gulftex Energy III, LP | San Antonio, TX 78257 | Oil & Gas Operator | Jul 2018 |
| 12336 | Gulftex Energy IV, LP | San Antonio, TX 78257 | Oil & Gas Operator | Jul 2019 |
| 12337 | Gulftex Energy, LLC | San Antonio, TX 78257 | Oil & Gas Operator | Apr 2025 |
| 12338 | Gulftex Operating Inc | Plano, TX 75093 | Oil & Gas Operator | Apr 2025 |
| 12339 | Gulick Drilling , Inc. | Eureka, KS 67045 | Oil Operator | Dec 2024 |
| 12340 | Gumfory, Shawn | Iola, KS 66749 | Oil Operator | Jul 1998 |
| 12341 | Gungoll Carl E Estate | Oklahoma City, OK 73154-0466 | Oil & Gas Operator | Aug 2000 |
| 12342 | Gungoll Henry H. Associates | Enid, OK 73701 | Oil & Gas Operator | Jan 2024 |
| 12343 | Gungoll, Carl E. Exploration LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Apr 2025 |
| 12344 | Gunkel Charley Wayne Rev Inter VIvos Trust | Schulter, OK 74460-0010 | Gas Operator | Dec 2015 |
| 12345 | Gunn And Divers | Mount Zion, WV 26151 | Oil & Gas Operator | Dec 2021 |
| 12346 | Gunn Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2025 |
| 12347 | Gunn, P. P., Estate Heirs | | Oil & Gas Operator | Dec 2008 |
| 12348 | Gunner Energy Corp. | Troy, MI 48083 | Oil & Gas Operator | Jun 1995 |
| 12349 | Gunner Oil Company | Wichita, KS 67205 | Oil & Gas Operator | Dec 2024 |
| 12350 | Gunnison Energy Corporation | | Oil & Gas Operator | Jun 2014 |
| 12351 | Gunnison Energy LLC | | Oil & Gas Operator | Jan 2025 |
| 12352 | Gunsight Energy Inc | Floydada, TX 79235-2521 | Oil Operator | Jun 2009 |
| 12353 | Gunsight Supply Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Aug 2003 |
| 12354 | Gunsmoke Energy Company | Fort Worth, TX 76132 | Oil & Gas Operator | May 2012 |
| 12355 | Gunter Jim | Springer, OK 73458 | Oil Operator | Jan 2025 |
| 12356 | Gupton Gas Co. | Fort Worth, TX 76107 | Oil & Gas Operator | Aug 1994 |
| 12357 | Gurley Oil Co | Kirtland, NM 87417 | Oil Operator | Dec 1995 |
| 12358 | Gurnee Gas Co., L.L.C. | | Gas Operator | Jul 2001 |
| 12359 | Gus Jones Cable Tool Service, LLC | Elk City, KS 67344 | Oil Operator | Nov 2024 |
| 12360 | Gusher Oil | | Oil Operator | Jul 2004 |
| 12361 | Gustafson Brothers Inc. | | Oil & Gas Operator | Dec 2002 |
| 12362 | Gustafson Family Trust 2 | Frewsburg, NY 14738 | Gas Operator | Dec 2023 |
| 12363 | Gustafson, Alan | Falconer, NY 14733 | Gas Operator | Dec 2023 |
| 12364 | Gustison Steven | | Oil Operator | Feb 1985 |
| 12365 | Guthrie Clare L And June | | Oil Operator | Nov 2021 |
| 12366 | Guthrie Oil Co | | Oil Operator | Nov 1994 |
| 12367 | Guthrie Oil Comp | | Oil & Gas Operator | Dec 1994 |
| 12368 | Guthrie, A. K. Operating Co. | Big Spring, TX 79720 | Oil & Gas Operator | Mar 1996 |
| 12369 | Guyan Gas Producers, Inc. | Oceana, WV 24870 | Gas Operator | Dec 2018 |
| 12370 | Guynes And Backus | | Oil Operator | Nov 1999 |
| 12371 | Guys Oil & Gas LTD Co | Hobbs, NM 88241 | Oil & Gas Operator | Dec 2019 |
| 12372 | Guzman Energy Inc. | | Oil & Gas Operator | Dec 2024 |
| 12373 | GVC Ventures | Mineola, TX 75773 | Oil & Gas Operator | Feb 2025 |
| 12374 | GW Energy, Inc. | Midland, TX 79710 | Oil Operator | Apr 2025 |
| 12375 | GW Petroleum Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 1993 |
| 12376 | GWB Oil & Gas LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 12377 | Gwet, Inc. | Merkel, TX 79536 | Oil Operator | Apr 2025 |
| 12378 | Gwitt, Edward J. | Eden, NY 14057 | Gas Operator | Dec 2023 |
| 12379 | GWM Operating Company, LLC | Sugar Land, TX 77479 | Oil & Gas Operator | Apr 2025 |
| 12380 | Gyb-Britlind Oil, LLC | | Oil & Gas Operator | Jun 2016 |
| 12381 | Gypsy Exploration LLC | Oklahoma City, OK 73123-1323 | Oil & Gas Operator | Dec 2014 |
| 12382 | Gypsy Highview Gathering System, Inc. | Cut Bank, MT 59427-0250 | Oil & Gas Operator | Oct 2000 |
| 12383 | Gypsy Oil Co. | Austin, TX 78720 | Oil & Gas Operator | Jul 2017 |
| 12384 | Gypsyglenn Oil Company LLC | Tulsa, OK 74119-4809 | Oil & Gas Operator | Feb 2025 |
| 12385 | Gyro Petroleum | Amarillo, TX 79120 | Oil & Gas Operator | Apr 2025 |
| 12386 | H & A Drilling | Newark, OH 43056 | Oil Operator | Dec 2024 |
| 12387 | H & B Petroleum Corp. | Hutchinson, KS 67504 | Oil & Gas Operator | Dec 2024 |
| 12388 | H & B Production | | Oil Operator | Mar 1995 |
| 12389 | H & B Well Service, Inc. | | Oil & Gas Operator | Aug 1993 |
| 12390 | H & C Oil Operat | | Oil & Gas Operator | Dec 1996 |
| 12391 | H & C Oil Operating Inc. | Plainville, KS 67663 | Oil & Gas Operator | Dec 2024 |
| 12392 | H & D Drilling Co Inc | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2023 |
| 12393 | H & D Exploration LLC | Hoisington, KS 67544 | Oil & Gas Operator | Dec 2024 |
| 12394 | H & D Operating Company | Refugio, TX 78377 | Oil & Gas Operator | May 2015 |
| 12395 | H & H & S Oil Producers | | Oil Operator | Jan 2025 |
| 12396 | H & H Compressors, Inc. | | Oil & Gas Operator | Oct 1997 |
| 12397 | H & H Drilling Company | Davis, OK 73030-2703 | Oil & Gas Operator | May 2014 |
| 12398 | H & H Energy Inc | Tuttle, OK 73089 | Oil Operator | May 2001 |
| 12399 | H & H Energy Of Ohio LTD | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2024 |
| 12400 | H & H Exploration | Tulsa, OK 74132 | Oil & Gas Operator | Jan 2006 |