| 4501 | Graves Operating | Perryton, TX 79070 | Oil & Gas Operator | Jul 2005 |
| 4502 | Graves Operating, LLC | Perryton, TX 79070 | Oil & Gas Operator | Apr 2025 |
| 4503 | Graward Operating, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Apr 2025 |
| 4504 | Gray Fox Operating Company | Tulsa, OK 74119 | Oil Operator | May 1993 |
| 4505 | Gray Oil & Gas Inc. | Abilene, TX 79606 | Oil & Gas Operator | Oct 2013 |
| 4506 | Gray Operating Company, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Apr 2018 |
| 4507 | Gray Production Trust | Dallas, TX 75261 | Oil & Gas Operator | Jul 2003 |
| 4508 | Gray, Gordon Operator | Snyder, TX 79550 | Oil & Gas Operator | Apr 2025 |
| 4509 | Gray, Mark W. Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Aug 2003 |
| 4510 | Gray, Robert Leon | FT Stockton, TX 79735 | Oil & Gas Operator | Feb 2000 |
| 4511 | Gray, W. H. Operating | Odessa, TX 79762 | Oil Operator | Apr 2025 |
| 4512 | Grayhawk Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2006 |
| 4513 | Grayrock Corp., The | Dallas, TX 75243 | Oil & Gas Operator | Dec 1999 |
| 4514 | Grayrock Energy II, LLC | Fort Worth, TX 76101 | Oil & Gas Operator | Apr 2025 |
| 4515 | Grayson Petroleum Company | Whitesboro, TX 76273 | Oil & Gas Operator | Apr 2025 |
| 4516 | Graystone Energy Corporation | Judson, TX 75660 | Oil & Gas Operator | Apr 2025 |
| 4517 | Graystone Exploration Corp. | Garland, TX 75043 | Oil & Gas Operator | Aug 2003 |
| 4518 | GRB Properties, Inc. | Midland, TX 79705 | Oil & Gas Operator | Mar 2003 |
| 4519 | Greasewood Oil Company | Midland, TX 79705 | Oil & Gas Operator | Jul 2007 |
| 4520 | Great American Resources Inc. | Bowie, TX 76230 | Oil & Gas Operator | Apr 2025 |
| 4521 | Great Basin Petroleum Serv, Inc. | Odessa, TX 79765 | Oil & Gas Operator | Nov 2002 |
| 4522 | Great Basin Petroleum Serv, L.P. | Odessa, TX 79765 | Oil & Gas Operator | Jul 2008 |
| 4523 | Great Basin Well Service Corp. | Odessa, TX 79765 | Oil & Gas Operator | Feb 2025 |
| 4524 | Great Bay Operations, LLC | Portsmouth, NH 03801 | Oil & Gas Operator | Nov 2016 |
| 4525 | Great Northern Energy, Inc | Irving, TX 75039 | Oil & Gas Operator | Apr 2025 |
| 4526 | Great Plains Operating, LLC. | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2014 |
| 4527 | Great Plains Petroleum, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Dec 2024 |
| 4528 | Great Plains Resources, Inc. | Nixon, TX 78140 | Oil & Gas Operator | Apr 2025 |
| 4529 | Great Texas Crude Inc. | Fredericksbrg, TX 78624 | Oil & Gas Operator | Apr 2025 |
| 4530 | Great West Energy & Expl., Inc. | Addison, TX 75001 | Oil & Gas Operator | Mar 2008 |
| 4531 | Great West Operating Co., Inc. | Dallas, TX 75240 | Oil & Gas Operator | Aug 2003 |
| 4532 | Great Western Drilling Co | Midland, TX 79701 | Oil & Gas Operator | Apr 2025 |
| 4533 | Great Western Onshore Inc | Houston, TX 77002 | Oil & Gas Operator | Mar 2008 |
| 4534 | Greco Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 4535 | Greco Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 4536 | Greehey And Company LTD | San Antonio, TX 78216 | Oil & Gas Operator | May 2020 |
| 4537 | Green Century Exp & Prod, LLC | Midland, TX 79701 | Oil & Gas Operator | Apr 2025 |
| 4538 | Green Exploration Company | Austin, TX 78711 | Oil & Gas Operator | Apr 2025 |
| 4539 | Green Light Operating, LLC. | Austin, TX 78746 | Oil Operator | Apr 2025 |
| 4540 | Green Oil & Gas, Inc. | Winters, TX 79567 | Oil & Gas Operator | Aug 2003 |
| 4541 | Green Petroleum Company | Archer City, TX 76351 | Oil & Gas Operator | Nov 1996 |
| 4542 | Green River Resources Inc. | Keystone, CO 80435 | Oil & Gas Operator | Apr 2025 |
| 4543 | Green Star | Somerset, TX 78069 | Oil Operator | Apr 2025 |
| 4544 | Green, Hugh | Albany, TX 76430 | Oil & Gas Operator | Apr 2012 |
| 4545 | Green, Michael Oil | Albany, TX 76430 | Oil Operator | Apr 2025 |
| 4546 | Green, Roy W. Oil & Gas | San Angelo, TX 76902 | Oil & Gas Operator | Jun 2021 |
| 4547 | Greenbriar Energy Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 2004 |
| 4548 | Greenbrier Oper. Co. | Dallas, TX 75229 | Oil & Gas Operator | Feb 2001 |
| 4549 | Greene, R. E. | Baird, TX 79504 | Oil & Gas Operator | Jun 2009 |
| 4550 | Greene, Vernon | Levelland, TX 79336 | Oil & Gas Operator | May 2002 |
| 4551 | Greenhaw, Morris R Oil & Gas Inc | Desdemona, TX 76445 | Oil & Gas Operator | May 2006 |
| 4552 | Greenhaw, Morris R. | Desdemona, TX 76445 | Oil & Gas Operator | Apr 2025 |
| 4553 | Greenhill Petroleum Corporation | Houston, TX 77077 | Oil & Gas Operator | Jan 1998 |
| 4554 | Greenlake Energy Operating, LLC | Austin, TX 78746 | Oil & Gas Operator | Apr 2025 |
| 4555 | Greenlight Enterprises LLC | McKinney, TX 75072 | Oil Operator | Apr 2025 |
| 4556 | Greenstone Energy, LLC | Houston, TX 77208 | Oil Operator | Apr 2025 |
| 4557 | Greenville Operating Company | Dallas, TX 75206 | Oil & Gas Operator | Oct 1996 |
| 4558 | Greenwerks Outdoor Services LLC | Stockdale, TX 78160 | Oil Operator | Apr 2025 |
| 4559 | Greenwich Oil Corporation | Dallas, TX 75225 | Oil & Gas Operator | Mar 1994 |
| 4560 | Greer Exploration Corporation | Shreveport, LA 71118 | Oil & Gas Operator | Jul 2017 |
| 4561 | Greer Industries, Inc. | Morgantown, WV 26507-1900 | Gas Operator | Dec 2021 |
| 4562 | Gregco, Inc. | Paducah, TX 79248 | Oil & Gas Operator | May 1999 |
| 4563 | Gregg Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2025 |
| 4564 | Gregory, J. Russell Inc. | Houston, TX 77025 | Gas Operator | Nov 2009 |
| 4565 | Greka Am Inc | Santa Maria, CA 93454 | Oil & Gas Operator | May 2013 |
| 4566 | Grenadier Energy Partners II,LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2020 |
| 4567 | Gresham Oil & Gas (USA) Inc. | Littleton, CO 80122 | Oil & Gas Operator | Jan 1999 |
| 4568 | Greta Operating Company LLC | Refugio, TX 78377 | Oil & Gas Operator | Apr 2025 |
| 4569 | Grewing, Florence T. | Muenster, TX 76252 | Oil & Gas Operator | Mar 2008 |
| 4570 | Grewing, Herman | Muenster, TX 76252 | Oil & Gas Operator | Apr 1997 |
| 4571 | Grewing, Herman Operating, Inc. | Muenster, TX 76252 | Oil Operator | Apr 2025 |
| 4572 | Grewing, Wayne R. Oil & Gas, LLC | Muenster, TX 76252 | Oil Operator | Apr 2018 |
| 4573 | Grey Rider Energy, LLC | Schertz, TX 78154 | Oil & Gas Operator | Apr 2025 |
| 4574 | Greylock Conventional, LLC | Charleston, WV 25311 | Oil & Gas Operator | Feb 2025 |
| 4575 | Greylock Opco LLC | Charleston, WV 25311 | Oil & Gas Operator | Dec 2024 |
| 4576 | Greystone Oil & Gas, LLP | Houston, TX 77057 | Oil & Gas Operator | Dec 2015 |
| 4577 | Greystone Petroleum, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2025 |
| 4578 | Gribble Oil Corporation | Dallas, TX 75235 | Oil Operator | Aug 1994 |
| 4579 | Griffin Energy Holdings, LLC | Plano, TX 75093 | Oil Operator | Apr 2025 |
| 4580 | Griffin Operating, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Mar 2017 |
| 4581 | Griffin Petroleum Company | Midland, TX 79705 | Oil & Gas Operator | Apr 2025 |
| 4582 | Griffin Resources | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2003 |
| 4583 | Griffin Resources LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2025 |
| 4584 | Griffith, Johnnie R. | O'Fallon, IL 62269 | Oil & Gas Operator | Dec 1996 |
| 4585 | Griggs, VIctor C. | Austin, TX 78746 | Oil & Gas Operator | Apr 2025 |
| 4586 | Grigsby Petroleum Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2025 |
| 4587 | Grigsby, Jack W. | Shreveport, LA 71101 | Oil & Gas Operator | Jan 2002 |
| 4588 | Grimes Energy Company | Abilene, TX 79604 | Oil & Gas Operator | Mar 2005 |
| 4589 | Grimes, Norman W. | Canyon, TX 79015 | Oil & Gas Operator | Jul 2014 |
| 4590 | Grissom, Charles A. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2001 |
| 4591 | Grit Oil & Gas Management, LLC | Houston, TX 77055 | Oil & Gas Operator | Apr 2025 |
| 4592 | Grit Oil & Gas, LLC | Houston, TX 77072 | Oil & Gas Operator | Apr 2019 |
| 4593 | Grit Operating, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2023 |
| 4594 | Grizzle, Joe B. | Paris, TX 75461 | Oil & Gas Operator | Apr 2025 |
| 4595 | Grizzly Op Of Delaware, LLC | Houston, TX 77057 | Oil & Gas Operator | Mar 2021 |
| 4596 | Grizzly Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Feb 2025 |
| 4597 | Gro-Tex Exploration | Abilene, TX 79603 | Oil Operator | Apr 2025 |
| 4598 | Gross, Charles E. | Dallas, TX 75220 | Oil & Gas Operator | Feb 2012 |
| 4599 | Gross, L. Jack Production | Borger, TX 79008 | Oil & Gas Operator | Dec 1994 |
| 4600 | Grothe Bros. | Albany, TX 76430 | Oil & Gas Operator | May 2011 |