| 601 | Stream Energy, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2024 |
| 602 | Streamline Oil And Gas Inc | Lindsey, OK 73052 | Oil & Gas Operator | Feb 2025 |
| 603 | Striker Management Co LLC | Shawnee, OK 74801 | Oil & Gas Operator | Jan 2025 |
| 604 | Sullivan & Co. | Tulsa, OK 74114 | Oil & Gas Operator | May 2022 |
| 605 | Sullivan And Company LLC | Tulsa, OK 74119 | Oil & Gas Operator | Jan 2025 |
| 606 | Summit Resources Management LLC | Edmond, OK 73083 | Oil & Gas Operator | Jan 2025 |
| 607 | Sun Refining & Marketing | Philadelphia, PA 19103 | Oil & Gas Operator | Jul 2015 |
| 608 | Sunoco Partners MKT & Terminal | Tulsa, OK 74102-2039 | Oil & Gas Operator | Jan 2019 |
| 609 | Superior Production MGMT Inc | Calumet, OK 73014 | Oil & Gas Operator | Mar 2015 |
| 610 | Swadley Roy W & Judith I | Holdenville, OK 74848-0794 | Oil & Gas Operator | Mar 2015 |
| 611 | Synergex Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Jan 2025 |
| 612 | T & K Oil Inc | Stephens, AR 71764 | Oil Operator | Aug 2024 |
| 613 | T B K Energy Company | New Braunfels, TX 78130 | Oil & Gas Operator | Feb 2025 |
| 614 | T T & T Inc | Shawnee, OK 74802-3694 | Oil & Gas Operator | Jan 1994 |
| 615 | Tack Operating LLC | Oklahoma City, OK 73172-1492 | Oil & Gas Operator | Aug 2021 |
| 616 | Tag Petroleum Inc | Stillwater, OK 74076 | Oil & Gas Operator | Jan 2021 |
| 617 | Tcina Inc | Seminole, OK 74868 | Oil & Gas Operator | May 2023 |
| 618 | TD Operating Inc | Hinton, OK 73047 | Oil & Gas Operator | Feb 2025 |
| 619 | Tennessee Gas Pipeline Company | Houston, TX 77252 | Oil & Gas Operator | Dec 2011 |
| 620 | Terra Production Company | Okemah, OK 74859-5924 | Oil & Gas Operator | Apr 2020 |
| 621 | Terry Jack | Konawa, OK 74849-0337 | Oil Operator | Feb 2012 |
| 622 | Tex-Star Production | Dallas, TX 75206 | Oil & Gas Operator | Feb 2025 |
| 623 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 624 | Texakoma Oil & Gas Corp | Dallas, TX 75240 | Oil & Gas Operator | Sep 2014 |
| 625 | The Guinn Company LLC | Asher, OK 74826-6012 | Oil & Gas Operator | Oct 2024 |
| 626 | Thunder Oil & Gas, LLC | Ardmore, OK 73402 | Oil & Gas Operator | Jan 2025 |
| 627 | Tide West Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2021 |
| 628 | Tidewater Operating Co Inc | Tulsa, OK 74136-6308 | Oil & Gas Operator | Jan 2025 |
| 629 | Tiger Oil Company | Dallas, TX 75221 | Oil & Gas Operator | May 2007 |
| 630 | Titan Oil & Gas Corporation | Edmond, OK 73013-5417 | Oil & Gas Operator | Dec 2024 |
| 631 | Tolson Gary | Seminole, OK 74868-3267 | Oil & Gas Operator | Jan 2025 |
| 632 | Toma Explorations LLC | Shawnee, OK 74801-6925 | Oil & Gas Operator | Jan 2025 |
| 633 | Torch Operating Company | Houston, TX 77010 | Oil & Gas Operator | Mar 2015 |
| 634 | Totalfinaelf E&P USA Inc | Houston, TX 77024 | Oil & Gas Operator | Jul 2007 |
| 635 | Tracy & Associates Inc | Ada, OK 74820 | Oil & Gas Operator | Apr 2014 |
| 636 | Trans Oil Marketing LLC | Abilene, TX 79608 | Oil Operator | Aug 2023 |
| 637 | Transok LLC | Oklahoma City, OK 73124-0300 | Oil & Gas Operator | Jul 2020 |
| 638 | Trek Resources, Inc. | Dallas, TX 75207 | Oil & Gas Operator | Apr 2025 |
| 639 | Trenchco Inc | Shawnee, OK 74802-3577 | Oil & Gas Operator | Apr 2015 |
| 640 | Trenon Oil & Gas Inc | Oklahoma City, OK 73112-4279 | Oil & Gas Operator | Sep 1996 |
| 641 | Trepel Petroleum Exploration & | | Oil & Gas Operator | Apr 2014 |
| 642 | Triad Energy Corp. Of Texas | Houston, TX 77057-2696 | Oil & Gas Operator | Sep 2014 |
| 643 | Triad Energy, Inc. | Oklahoma City, OK 73105-1401 | Oil & Gas Operator | Feb 2025 |
| 644 | Triad Of Oklahoma Inc | | Oil & Gas Operator | Feb 1996 |
| 645 | Trineha Inc | Ardmore, OK 73402-2478 | Oil & Gas Operator | Jun 2009 |
| 646 | Triple 7 Energy Company Inc | Prague, OK 74864 | Oil Operator | Feb 1997 |
| 647 | Triple G Trucks | Asher, OK 74826 | Oil & Gas Operator | Jun 2002 |
| 648 | Tripower Resources LLC | Ardmore, OK 73402 | Oil & Gas Operator | Apr 2025 |
| 649 | Tripower Resources, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2020 |
| 650 | Trivestco Energy Company | Ponca City, OK 74601 | Oil & Gas Operator | Feb 2025 |
| 651 | True Performance Administrators LLC | Tulsa, OK 74137 | Oil & Gas Operator | Jan 2025 |
| 652 | Truevine Operating LLC | Ada, OK 74821-1422 | Oil & Gas Operator | Jan 2025 |
| 653 | Truth Resources LP | Houston, TX 77090 | Oil Operator | Sep 2021 |
| 654 | Tuscany Operating LLC | Oklahoma City, OK 73106 | Oil & Gas Operator | Sep 2014 |
| 655 | Txo Production Corp. | Ganado, TX 77962 | Oil & Gas Operator | Aug 2022 |
| 656 | Umc Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 657 | Unbridled Resources, LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 658 | United Energy & Expl Inc | Ada, OK 74821-2449 | Oil & Gas Operator | Jan 2025 |
| 659 | United Energy & Exploration LLC | Ada, OK 74821 | Oil & Gas Operator | Jan 2025 |
| 660 | United Energy Develop Co LTD | Bartlesville, OK 74003 | Oil Operator | Mar 2004 |
| 661 | United States Trading & Trans | Dallas, TX 75380-3342 | Oil & Gas Operator | Dec 1994 |
| 662 | Upland Production Company | Edmond, OK 73083 | Oil & Gas Operator | Apr 2025 |
| 663 | Urban Oil & Gas Group, LLC | Plano, TX 75074 | Oil & Gas Operator | Apr 2025 |
| 664 | Valjohn Energy Corporation | Oklahoma City, OK 73142-6090 | Oil & Gas Operator | Jan 2025 |
| 665 | Valley Petrol Consulting Inc | Denton, TX 76205 | Oil Operator | Jan 2025 |
| 666 | Vantage Point Operating Co | Houston, TX 77057 | Oil & Gas Operator | Dec 2014 |
| 667 | Vaquero Resources, LLC | Edmond, OK 73034 | Oil & Gas Operator | Jan 2025 |
| 668 | Vastar Resources Inc | Houston, TX 77253 | Oil & Gas Operator | Dec 2024 |
| 669 | Vaughan Otto M | | Oil & Gas Operator | Apr 2014 |
| 670 | Vaughan Production Company, Inc. | Norman, OK 73072 | Oil & Gas Operator | Sep 2014 |
| 671 | Veenker Resources, Inc. | Oklahoma City, OK 73113 | Oil & Gas Operator | Feb 2025 |
| 672 | Vega Energy Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Sep 2015 |
| 673 | Venis Dwain | Seminole, OK 74818-1975 | Oil & Gas Operator | Feb 2012 |
| 674 | Venis Exploration Company | Aledo, TX 76008 | Oil & Gas Operator | Oct 2024 |
| 675 | Viersen & Cochran Drilling Company | | Oil & Gas Operator | May 2015 |
| 676 | Vintage Petroleum, Inc. | Houston, TX 77046 | Oil & Gas Operator | Jan 2025 |
| 677 | Vitol Inc | Houston, TX 77002 | Oil & Gas Operator | Sep 2023 |
| 678 | Walsh Jr F Howard | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Jan 2025 |
| 679 | Walsh Jr F Howard Opr Co Inc | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Feb 2016 |
| 680 | Walters Frank | Pernell, OK 73076 | Oil & Gas Operator | Sep 2014 |
| 681 | Waltman Family LP | Maud, OK 74854-2603 | Oil Operator | Jan 2025 |
| 682 | Waltman Oil & Gas | Maud, OK 74854-9739 | Oil Operator | Sep 2001 |
| 683 | Ware Jimmy M | Seminole, OK 74868 | Oil & Gas Operator | Nov 1998 |
| 684 | Warren American Oil Company LLC | Tulsa, OK 74147 | Oil & Gas Operator | Apr 2025 |
| 685 | Watkins Paul | Bixby, OK 74008-4018 | Oil & Gas Operator | Jun 2004 |
| 686 | Wellco Energy Inc | Harrah, OK 73045 | Oil & Gas Operator | Jan 2025 |
| 687 | Wenexco, Inc. | Streetman, TX 75859 | Oil & Gas Operator | Apr 2025 |
| 688 | Wentworth Operating Company | Oklahoma City, OK 73162-1863 | Oil & Gas Operator | Feb 2025 |
| 689 | Western Oil Company | Midland, TX 79702 | Oil & Gas Operator | Jul 2014 |
| 690 | Weststar Operating Company | Santa Anna, TX 76878 | Oil & Gas Operator | Mar 2015 |
| 691 | Westwind Exploration Company | Oklahoma City, OK 73123 | Oil & Gas Operator | Oct 1998 |
| 692 | Whitaker Raymond | Paul Valley, OK 73075-1041 | Oil & Gas Operator | May 2007 |
| 693 | White Mike Oil Field Service | Edmond, OK 73034 | Oil & Gas Operator | Jan 2013 |
| 694 | White N J & White J B | Paden, OK 74860-0114 | Oil Operator | Aug 2013 |
| 695 | Whitley Robert L | Saint Louis, OK 74866-0004 | Oil & Gas Operator | Sep 2014 |
| 696 | Whitmar Exploration Company | Denver, CO 80202 | Oil & Gas Operator | Jan 2025 |
| 697 | Wieck Oil Company LLC | Cromwell, OK 74859 | Oil Operator | Aug 2014 |
| 698 | Wil-MC Oil Corporation The | Irving, TX 75015-2510 | Oil & Gas Operator | Mar 1999 |
| 699 | Wilco Oil & Gas Corporation | Oklahoma City, OK 73159-6229 | Oil & Gas Operator | Dec 2023 |
| 700 | Wildhorse Oil & Gas Corporation | Ardmore, OK 73402 | Oil & Gas Operator | May 2019 |