| 601 | Southstar Oil And Gas Inc | Andover, KS 67002-0123 | Oil & Gas Operator | Jul 2020 |
| 602 | SP Energy Development Company | Seattle, WA 98101-3277 | Oil & Gas Operator | Mar 2015 |
| 603 | Sparks Resources Inc | Bristow, OK 74010 | Oil & Gas Operator | Feb 2026 |
| 604 | Spectrum Oil Company | Irving, TX 75063 | Oil & Gas Operator | May 2013 |
| 605 | Sperry R J | Dallas, TX 75254-8647 | Oil & Gas Operator | Aug 2013 |
| 606 | Spess Oil Company Inc | Cleveland, OK 74020-4617 | Oil & Gas Operator | Feb 2026 |
| 607 | Spring Tide Petroleum Inc | Broken Arrow, OK 74011-6651 | Oil & Gas Operator | Oct 2025 |
| 608 | Stargas Co | Tulsa, OK 74136-5407 | Oil & Gas Operator | Aug 2013 |
| 609 | Starks Leslie | Wetumka, OK 74883-0003 | Oil & Gas Operator | Oct 1995 |
| 610 | Sterling Oil Of Okla Inc | Tulsa, OK 74170-2163 | Oil & Gas Operator | Nov 2006 |
| 611 | Stewart Operating | | Oil Operator | Jul 2019 |
| 612 | Stricker Resources Inc | Morris, OK 74445 | Oil & Gas Operator | Jan 2026 |
| 613 | Striker Management Co LLC | Shawnee, OK 74801 | Oil & Gas Operator | Jan 2026 |
| 614 | Sturman Jay R | Mounds, OK 74047 | Oil & Gas Operator | Aug 2025 |
| 615 | Sullivan And Company LLC | Tulsa, OK 74119 | Oil & Gas Operator | Jan 2026 |
| 616 | Swenton Michael J | Tulsa, OK 74105 | Oil & Gas Operator | Feb 2026 |
| 617 | Sydson D'Oro Exploration Co. | Houston, TX 77079 | Oil & Gas Operator | Jan 1992 |
| 618 | T & K Oil Inc | Stephens, AR 71764 | Oil Operator | Jan 2025 |
| 619 | T Bar M Energy Resources LLC | Sapulpa, OK 74066 | Oil & Gas Operator | Jan 2026 |
| 620 | Tamarack Petroleum Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2026 |
| 621 | Tarwater Oil & Gas LLC | San Jose, CA 95128-4219 | Oil & Gas Operator | Dec 2023 |
| 622 | Tat, Inc. | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2023 |
| 623 | Tcina Inc | Seminole, OK 74868 | Oil & Gas Operator | May 2023 |
| 624 | Teale F William | Tulsa, OK 74136-1017 | Oil & Gas Operator | Jun 2000 |
| 625 | Technical Energy Services, Inc. | Norman, OK 73070 | Oil & Gas Operator | Jan 2026 |
| 626 | Tee Cee'S Inc | Drumright, OK 74030 | Oil & Gas Operator | Feb 2026 |
| 627 | Tennyson Oil & Gas | Muskogee, OK 74401 | Oil Operator | Jan 2026 |
| 628 | Terra Production Company | Okemah, OK 74859-5924 | Oil & Gas Operator | Apr 2020 |
| 629 | Terrapin Energy LLC | Okmulgee, OK 74447 | Oil Operator | Feb 2026 |
| 630 | Texaco Exploration & Prod Inc | Houston, TX 77236 | Oil & Gas Operator | Dec 2025 |
| 631 | Texakoma Oil & Gas Corp | Dallas, TX 75240 | Oil & Gas Operator | Sep 2014 |
| 632 | Texas Meridian Operating Co. Inc | Houston, TX 77079 | Oil & Gas Operator | Oct 1993 |
| 633 | Thomas E L | Tulsa, OK 74136-6302 | Oil & Gas Operator | Feb 2015 |
| 634 | Thomas Exploration Company | Tulsa, OK 74136-6302 | Oil & Gas Operator | Jan 2026 |
| 635 | Thompson James R | Okmulgee, OK 74447 | Oil & Gas Operator | Sep 2025 |
| 636 | Threet David Allen | Sand Springs, OK 74063-4035 | Oil & Gas Operator | Jan 2026 |
| 637 | Tidemark Exploration | Tulsa, OK 74170 | Oil & Gas Operator | May 2005 |
| 638 | Tilley Matt Dba Tilley Oil Co | Skiatook, OK 74070 | Oil & Gas Operator | Feb 2026 |
| 639 | TNT Energy Inc. | Brownwood, TX 76801 | Oil & Gas Operator | May 2013 |
| 640 | TNT Enterprizes | Coweta, OK 74429 | Oil & Gas Operator | Nov 2005 |
| 641 | Tomorrows Energy Exploration Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Jan 2026 |
| 642 | Topsail Secondary Recovery LLC | Edmond, OK 73013 | Oil & Gas Operator | Feb 2025 |
| 643 | Torch Operating Company | Houston, TX 77010 | Oil & Gas Operator | Mar 2015 |
| 644 | Tower Energy Corporation | Sapulpa, OK 74067-0837 | Oil & Gas Operator | Mar 2015 |
| 645 | Trail Ridge Energy Partners, LLC | Grapevine, TX 76051 | Oil & Gas Operator | Feb 2026 |
| 646 | Trailblazer Energy LLC | Plano, TX 75075 | Oil & Gas Operator | Feb 2026 |
| 647 | Travco Well Servicing LLC | Okmulgee, OK 74447 | Oil Operator | Dec 2025 |
| 648 | Treat Howard | Okmulgee, OK 74447 | Oil & Gas Operator | Oct 2014 |
| 649 | Trend Gas & Oil Inc | Jenks, OK 74037 | Oil & Gas Operator | Dec 2000 |
| 650 | Trey Resources Inc. | Midland, TX 79710 | Oil & Gas Operator | Jan 2026 |
| 651 | Triexco Inc | Tulsa, OK 74119 | Oil & Gas Operator | Dec 2012 |
| 652 | Tripower Resources, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2020 |
| 653 | Troyer Howard E | Tulsa, OK 74133-8016 | Oil & Gas Operator | Dec 2014 |
| 654 | TRP-Ok Properties LLC | Norman, OK 73072 | Oil & Gas Operator | Feb 2026 |
| 655 | Tru Operating LLC | Denton, TX 76201 | Oil & Gas Operator | Apr 2023 |
| 656 | Truevine Gas Company | Ada, OK 74821-1422 | Oil & Gas Operator | Jan 2026 |
| 657 | Truevine Operating LLC | Ada, OK 74821-1422 | Oil & Gas Operator | Feb 2026 |
| 658 | Truluck Enterprises LLC | Wichita Falls, TX 76308-4454 | Oil & Gas Operator | Apr 2015 |
| 659 | Tulsa Energy Inc | Tulsa, OK 74133 | Oil & Gas Operator | May 2013 |
| 660 | Tuscany Operating LLC | Oklahoma City, OK 73106 | Oil & Gas Operator | Sep 2014 |
| 661 | Twenty First Century Res Inc | Lajolla, CA 92037-7044 | Oil & Gas Operator | Mar 2015 |
| 662 | Txo Production Corp. | Ganado, TX 77962 | Oil & Gas Operator | Aug 2022 |
| 663 | Tyler Enterprises Inc | Bristow, OK 74010-3192 | Oil & Gas Operator | Feb 2004 |
| 664 | United Texas Petroleum Inc. | McKinney, TX 75070 | Oil & Gas Operator | Apr 2026 |
| 665 | Universal Exploration Inc | Wadsworth, OH 44281-9460 | Oil & Gas Operator | Feb 2012 |
| 666 | Valley Oil & Gas Inc | | Oil & Gas Operator | Nov 2013 |
| 667 | Van Orsdol Paul | Bristow, OK 74010 | Oil & Gas Operator | Feb 2026 |
| 668 | Vassaur Elizabeth | Morris, OK 74445-2303 | Oil & Gas Operator | Oct 2018 |
| 669 | Vaughan Otto M | | Oil & Gas Operator | Apr 2014 |
| 670 | Vaughn Deloy | Beggs, OK 74421-0305 | Oil & Gas Operator | Apr 2020 |
| 671 | Vega Energy Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Sep 2015 |
| 672 | Viersen Drilling Company | Henryetta, OK 74437 | Oil & Gas Operator | Jan 2022 |
| 673 | Vision Natural Res-Ok LLC | Midland, TX 79708-8105 | Oil Operator | Oct 2010 |
| 674 | W C T Operating LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jan 2026 |
| 675 | W F D Oil Corp. | Edmond, OK 73012 | Oil & Gas Operator | Jan 2026 |
| 676 | W P Oil & Gas LLC | Coweta, OK 74429-5465 | Oil & Gas Operator | Mar 2015 |
| 677 | Wadley Bill & Son Drilling Co | Okmulgee, OK 74447 | Oil & Gas Operator | Jan 2026 |
| 678 | Walker Jeffery Scott | Owasso, OK 74055-7420 | Oil Operator | Dec 2025 |
| 679 | Wasson Billy C | Morris, OK 74445 | Oil & Gas Operator | Jan 2026 |
| 680 | Waterloo Exploration LLC | Tulsa, OK 74136-4226 | Gas Operator | Jan 2026 |
| 681 | Watkins J L | Henryetta, OK 74437 | Oil & Gas Operator | Feb 2026 |
| 682 | Watkins Joe L | Boynton, OK 74422 | Oil & Gas Operator | Mar 2015 |
| 683 | Watkins Oil Company | Claremore, OK 74017 | Oil & Gas Operator | May 2018 |
| 684 | Watkins Paul | Bixby, OK 74008-4018 | Oil & Gas Operator | Jun 2004 |
| 685 | Watson Fred S Revocable Trust | Muskogee, OK 74402-1928 | Oil Operator | Nov 2017 |
| 686 | Weatherly Oil & Gas, LLC | Dallas, TX 75206 | Oil & Gas Operator | Apr 2026 |
| 687 | Weins Horton L | Sand Springs, OK 74063 | Oil & Gas Operator | Jan 2026 |
| 688 | Wells Edward K | Sapulpa, OK 74066-4243 | Oil & Gas Operator | Jun 2004 |
| 689 | WG Oil & Gas LLC | Okmulgee, OK 74447-7862 | Oil & Gas Operator | Dec 2022 |
| 690 | Wheeler Oil & Gas Inc | Tulsa, OK 74103-4293 | Oil & Gas Operator | Jan 2007 |
| 691 | Whitco Operating Company | Duncan, OK 73534-1936 | Oil & Gas Operator | Oct 2009 |
| 692 | White Clarence A | Lawton, OK 73505-4927 | Oil & Gas Operator | Jan 2026 |
| 693 | White Exploration Inc | Wichita, KS 67278 | Oil & Gas Operator | Dec 2025 |
| 694 | White Walter & Betty | | Oil Operator | Mar 2018 |
| 695 | Whomble O O | Morris, OK 74445 | Oil Operator | Jun 2021 |
| 696 | Wilcox Pipe & Supply Co | Oklahoma City, OK 73189 | Oil & Gas Operator | May 2006 |
| 697 | Wildhorse Operating Company | Ardmore, OK 73402 | Oil & Gas Operator | Apr 2026 |
| 698 | Williams Brothers Engineering Company | Tulsa, OK 74134-5885 | Oil & Gas Operator | May 2013 |
| 699 | Williams Dale And Dorothy Family Trust | Maud, OK 74854-2011 | Oil & Gas Operator | Jan 2026 |
| 700 | Williams Doyle Dba BCF Gas | Tulsa, OK 74114-7099 | Oil & Gas Operator | Jul 2023 |