| 601 | Gladiator Operating LLC | Ardmore, OK 73401 | Oil & Gas Operator | Sep 2025 |
| 602 | Gladney Energy Partners, LLC | | Oil & Gas Operator | Dec 2024 |
| 603 | Gladson, Willard | Ira, TX 79527 | Oil & Gas Operator | Jun 1998 |
| 604 | Gladson, Willard Estate Of | Odessa, TX 79762 | Oil & Gas Operator | Dec 2025 |
| 605 | Glahn Resources, Inc. | Arlington, TX 76003 | Oil & Gas Operator | Dec 2025 |
| 606 | Glass Drilling Co. | | Oil Operator | Jan 1987 |
| 607 | Glass, Theodore G. | Dallas, TX 75248 | Oil & Gas Operator | Dec 2025 |
| 608 | Glasscock Drilling, Inc. | | Oil & Gas Operator | Dec 1977 |
| 609 | Glassell Producing Company, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 610 | Glassell, Alfred C., Jr. | Houston, TX 77002 | Oil & Gas Operator | Apr 2007 |
| 611 | Glaves Oil Company | Douglass, KS 67039 | Oil Operator | Mar 2019 |
| 612 | Glaze Alva G Dri | | Oil Operator | Apr 1991 |
| 613 | GLB Exploration Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2025 |
| 614 | Glen Cain Inc | | Oil Operator | Dec 2024 |
| 615 | Glen D. Gonzenbach, LLC | Henrietta, TX 76365 | Oil & Gas Operator | Dec 2016 |
| 616 | Glen D. Loe | | Oil & Gas Operator | May 1993 |
| 617 | Glen D. Loe Etal | | Oil Operator | Jul 1989 |
| 618 | Glen J. Oil Company | Independence, KS 67301 | Oil Operator | Jul 1997 |
| 619 | Glen Plemons | Lovington, NM BADADDR | Oil Operator | Jul 2005 |
| 620 | Glenco Oil & Gas Company | Seguin, TX 78155 | Oil & Gas Operator | Dec 1994 |
| 621 | Glenco Oil & Gas Corporation | Wewoka, OK 74884-0727 | Oil & Gas Operator | Sep 2021 |
| 622 | Glend-Owen Oil Co LLC | Madison, WI 53705 | Oil Operator | Dec 2023 |
| 623 | Glenda Gas Compa | | Oil Operator | Sep 1988 |
| 624 | Glenda Petroleum Corp. | | Gas Operator | Oct 1991 |
| 625 | Glendale Gas Venture | Homer City, PA 15748-9232 | Gas Operator | Dec 2024 |
| 626 | Glendale Oil LLC | | Oil & Gas Operator | Oct 2025 |
| 627 | Glendell L Gaskins Production LLC | Slick, OK 74071 | Oil & Gas Operator | Sep 2025 |
| 628 | Gleneayre Resources Inc | Reno, OH 45773 | Oil & Gas Operator | Dec 1990 |
| 629 | Glenmar Company | Monterey, CO 93940 | Oil Operator | Oct 1998 |
| 630 | Glenn And VIckie Crenshaw | Lovington, NM 88260 | Oil & Gas Operator | Aug 2002 |
| 631 | Glenn Gas & Oil Co | Sigel, PA 15860-3234 | Oil & Gas Operator | Dec 2010 |
| 632 | Glenn Gas Inc. | | Gas Operator | Mar 2025 |
| 633 | Glenn Supply Com | | Oil Operator | Apr 1989 |
| 634 | Glenn Supply Company, Inc. | Tulsa, OK 74101 | Oil & Gas Operator | Aug 2025 |
| 635 | Glenn, Hoyt | | Oil Operator | Nov 2014 |
| 636 | Glenn, Lyndell | Wichita Falls, TX 76310 | Oil & Gas Operator | Dec 2025 |
| 637 | Glenn, Wayne E. & Assoc., Inc. | Dickinson, TX 77539 | Oil & Gas Operator | Jun 2005 |
| 638 | Glenwood Operating LLC | Wichita Falls, TX 76309-4529 | Gas Operator | Aug 2025 |
| 639 | Glenwood Resources, Inc. | Wheat Ridge, CO 80033 | Oil & Gas Operator | Apr 2025 |
| 640 | GLG Energy LP | Austin, TX 78701 | Oil & Gas Operator | Jun 1994 |
| 641 | Glickenhaus Energy Corporation | Houston, TX 77027 | Oil & Gas Operator | Dec 2025 |
| 642 | Glickman Incorpo | | Oil Operator | Jun 1988 |
| 643 | Glimp Oil Company | Drumright, OK 74030-0391 | Oil & Gas Operator | Mar 1998 |
| 644 | Glimp Oil Company LLC | Drumright, OK 74030 | Oil & Gas Operator | Sep 2025 |
| 645 | GLM Energy Inc | Oklahoma City, OK 73142 | Oil & Gas Operator | Aug 2025 |
| 646 | Global Associates Inc | | Oil & Gas Operator | Oct 1998 |
| 647 | Global Drilling, LLC | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 648 | Global Exploration, LLC | Lexington, KY 40502 | Oil Operator | Dec 2023 |
| 649 | Global Exploration, LTD. | Wellington, KS 67152 | Oil Operator | Jun 2019 |
| 650 | Global Natural R | | Oil & Gas Operator | Oct 1990 |
| 651 | Global Natural Res Corp | Houston, TX 77210 | Oil & Gas Operator | Dec 1994 |
| 652 | Global Natural Resources | Houston, TX 77002 | Oil & Gas Operator | Dec 1999 |
| 653 | Global Natural Resources Corp. | Houston, TX 77002 | Oil & Gas Operator | May 1998 |
| 654 | Global Oil Corp | Rising Star, TX 76471 | Oil Operator | Apr 2008 |
| 655 | Global Oklahoma Production, L.L.C. | | Oil & Gas Operator | May 2025 |
| 656 | Global Operating Co. Inc. | | Oil Operator | Dec 2008 |
| 657 | Global Training Academy, Inc. | Somerset, TX 78069 | Oil Operator | Dec 2025 |
| 658 | Global West Exploration Inc. | Houston, TX 77229 | Oil & Gas Operator | Dec 1995 |
| 659 | Global XRC Corp | Pittsburg, TX 75686 | Oil & Gas Operator | Dec 2025 |
| 660 | Globe Exploratio | | Oil & Gas Operator | Jun 1995 |
| 661 | Globe Operating, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Dec 2019 |
| 662 | Gloco LLC (The) | Ada, OK 74820 | Oil & Gas Operator | Aug 2025 |
| 663 | Glori Energy Holdings Inc. | Houston, TX 77053 | Oil & Gas Operator | Jan 2017 |
| 664 | Glori Energy Production LLC | Houston, TX 77027 | Oil & Gas Operator | Apr 2018 |
| 665 | Glori Holdings, Inc. | Houston, TX 77042 | Oil Operator | Mar 2004 |
| 666 | Gloria Corporation The | Ada, OK 74821-0297 | Oil & Gas Operator | Sep 2014 |
| 667 | Glory Oil Company LLC | Dewey, OK 74029-4056 | Oil Operator | Aug 2025 |
| 668 | Glossop Oil & Gas, LLC | Midland, TX 79704 | Oil & Gas Operator | Jul 2025 |
| 669 | Glossop, Robert L. | Midland, TX 79704 | Oil & Gas Operator | Sep 2007 |
| 670 | Glossop, Robert L. Estate | Midland, TX 79704 | Oil & Gas Operator | Feb 2018 |
| 671 | Glover Oilfield Service, Inc. | Olney, IL 62450 | Oil & Gas Operator | Dec 2013 |
| 672 | Glover'S Oil & Gas | Middlebourne, WV 26149 | Oil & Gas Operator | Dec 2021 |
| 673 | Glover, Earl | Auburn, KY 42206 | Oil Operator | Dec 2023 |
| 674 | Glover, Michael C. | Albany, TX 76430 | Oil & Gas Operator | Nov 2013 |
| 675 | GM Petroleum | Gulf Breeze, FL 32561 | Oil & Gas Operator | Mar 2014 |
| 676 | GM Petroleum Corporation (I) | Dallas, TX 75218 | Oil & Gas Operator | Aug 2003 |
| 677 | GM/Delphi Packard Elec. | Warren, OH 44486 | Oil & Gas Operator | Dec 1995 |
| 678 | GMJ Of La, Inc. | | Oil & Gas Operator | May 1998 |
| 679 | GMP Minerals LLC | Tulsa, OK 74132-1244 | Oil Operator | Aug 2025 |
| 680 | GMT Energy Corporation | Houston, TX 77042 | Oil & Gas Operator | Feb 2005 |
| 681 | GMT Exploration Co Texas, LLC | Houston, TX 77070 | Oil & Gas Operator | Jun 2014 |
| 682 | GMT Exploration Company LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 683 | GMT Inc. | Houston, TX 77042 | Oil & Gas Operator | Jan 2003 |
| 684 | GMW Petroleum LLC | Skiatook, OK 74070 | Oil & Gas Operator | Aug 2025 |
| 685 | GMX Resources, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2014 |
| 686 | GN&J LLC | Pharr, TX 78577 | Oil & Gas Operator | Dec 2025 |
| 687 | GNG Operating LLC | Graham, TX 76450 | Oil Operator | Dec 2025 |
| 688 | GNR Production Services Inc | | Oil Operator | Oct 2001 |
| 689 | Go & Go | Dallas, TX 75218 | Oil & Gas Operator | Mar 2018 |
| 690 | Go Energy Inc. | | Gas Operator | Dec 1987 |
| 691 | Go Oil Corp. | Jacksboro, TX 76458 | Oil & Gas Operator | Dec 2025 |
| 692 | Go-Energy Co. | San Antonio, TX 78232 | Oil & Gas Operator | Mar 2002 |
| 693 | Goat Mayo Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2003 |
| 694 | Goater, Kenneth A | Sanborn, NY 14132 | Gas Operator | Dec 2024 |
| 695 | Goben'S United Petroleum, Inc. | Wichita, KS 67218 | Oil Operator | Nov 2001 |
| 696 | Goby Energy, Inc. | Glenwood Springs, CO 81601 | Oil Operator | Dec 2019 |
| 697 | Godfrey & Riley | | Gas Operator | May 1988 |
| 698 | Godfrey Oil Properties | Madill, OK 73446 | Oil & Gas Operator | Aug 2025 |
| 699 | Goe Pro Inc | Albion, PA 16401-9717 | Oil & Gas Operator | Dec 1991 |
| 700 | Goebel, Kenneth & Paula S | MT Vernon, IN 47620 | Oil Operator | Dec 2023 |