| 701 | Sears M N | Oklahoma City, OK 73143 | Oil & Gas Operator | Apr 2015 |
| 702 | Sequent Exploration Inc | | Oil & Gas Operator | Oct 2017 |
| 703 | Seventy-One Inc | | Oil & Gas Operator | May 1999 |
| 704 | Shaw Thomas P | Tulsa, OK 74105-7327 | Oil & Gas Operator | Mar 2015 |
| 705 | Shawver & Son Inc | Oklahoma City, OK 73154-0778 | Oil & Gas Operator | Oct 2024 |
| 706 | Shawver Energy Inc | Oklahoma City, OK 73154-0683 | Oil & Gas Operator | Apr 2014 |
| 707 | Shell Trading Us Company | Houston, TX 77210 | Oil & Gas Operator | Dec 2024 |
| 708 | Shell Western Expl & Prod Inc | Houston, TX 77251 | Oil & Gas Operator | Mar 2015 |
| 709 | Sheridan Production Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Dec 2024 |
| 710 | Shoreline Operating LLC | Oklahoma City, OK 73113 | Oil & Gas Operator | Jan 2025 |
| 711 | Shoshone Oil And Gas Inc | Lindsay, OK 73052-0217 | Oil & Gas Operator | Jan 2020 |
| 712 | Silver Creek Oil & Gas, LLC | Flower Mound, TX 75022 | Oil & Gas Operator | Mar 2025 |
| 713 | Simmons Mack McCoy | Cement, OK 73017 | Oil Operator | Nov 2024 |
| 714 | Singer Fleischaker Oil Op. Co. | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2002 |
| 715 | Singer Oil Co LLC | Hennessey, OK 73742 | Oil & Gas Operator | Jan 2025 |
| 716 | Siven Crude Oil Company | Lomita, CA 90717 | Oil & Gas Operator | Apr 2018 |
| 717 | Slawson Exploration Company Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2025 |
| 718 | Slawson, Donald C. | Wichita, KS 67202 | Oil & Gas Operator | Oct 2024 |
| 719 | Sloan Petroleum Service Inc | Guthrie, OK 73044 | Oil & Gas Operator | Jan 2025 |
| 720 | SM Energy Company | Midland, TX 79707 | Oil & Gas Operator | Mar 2025 |
| 721 | Smith VIcki L Palmer | Lawton, OK 73505-1701 | Oil & Gas Operator | Dec 2014 |
| 722 | Smith W M | Barnstall, OK 74002 | Oil & Gas Operator | Dec 2024 |
| 723 | Smith-Clement Exploration Inc | Edmond, OK 73013 | Oil Operator | Jul 1997 |
| 724 | Snyder Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2015 |
| 725 | Song Production Company | Lindsay, OK 73052-0369 | Oil & Gas Operator | Jun 2015 |
| 726 | Sooner Oilfield Services Inc | Piedmont, OK 73078-0810 | Oil & Gas Operator | May 2024 |
| 727 | Sorrels J R Dba Cheyenne Oil Properties | Ponca City, OK 74601 | Oil & Gas Operator | Jul 2022 |
| 728 | Southern Int'L Inc | Oklahoma City, OK 73107 | Oil & Gas Operator | May 2007 |
| 729 | Southern Resources Inc | Oklahoma City, OK 73118-4821 | Oil & Gas Operator | Dec 2024 |
| 730 | Southport Exploration Inc | Tulsa, OK 74103-4015 | Oil & Gas Operator | Nov 1998 |
| 731 | Southwest Energy LP | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 732 | Sparks Petroleum Company | Oklahoma City, OK 73128 | Oil & Gas Operator | Mar 1998 |
| 733 | Special Energy Corporation | Stillwater, OK 74076 | Oil & Gas Operator | Mar 2025 |
| 734 | Spess Oil Company Inc | Cleveland, OK 74020-4617 | Oil & Gas Operator | Jan 2025 |
| 735 | Spring Operating Company | Edmond, OK 73034 | Oil & Gas Operator | Jan 2025 |
| 736 | St Joe Petroleum U S Corp | | Oil & Gas Operator | Aug 2000 |
| 737 | St. Johns Operating #1 L.P. | Houston, TX 77060 | Oil & Gas Operator | Aug 2023 |
| 738 | St. Mary Operating Company | Denver, CO 80203 | Oil & Gas Operator | Mar 2019 |
| 739 | Staghorn Energy, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2024 |
| 740 | Staghorn Petroleum II LLC | Tulsa, OK 74103-3500 | Oil & Gas Operator | Jan 2025 |
| 741 | Staghorn Resources, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |
| 742 | Stalwart Energy Co | Tulsa, OK 74103-3518 | Oil & Gas Operator | Apr 2014 |
| 743 | State Oil Company | | Oil & Gas Operator | Mar 2006 |
| 744 | Stauros Operating Company | Edmond, OK 73083-2707 | Oil & Gas Operator | Mar 2001 |
| 745 | Stephens Production Company | The Woodlands, TX 77381 | Oil & Gas Operator | Jan 2025 |
| 746 | Stone Oak Operating LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Jan 2025 |
| 747 | Stover Oil Company | Konawa, OK 74849-0216 | Oil & Gas Operator | Jul 2002 |
| 748 | Strange, D. D. | Archer City, TX 76351 | Oil & Gas Operator | Sep 2014 |
| 749 | Strat Land Exploration Company | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2024 |
| 750 | Streamline Oil And Gas Inc | Lindsey, OK 73052 | Oil & Gas Operator | Jan 2025 |
| 751 | Stride Energy LLC | Piedmont, OK 73078 | Oil & Gas Operator | Jan 2025 |
| 752 | Sullivan & Co. | Tulsa, OK 74114 | Oil & Gas Operator | May 2022 |
| 753 | Sullivan And Company LLC | Tulsa, OK 74119 | Oil & Gas Operator | Dec 2024 |
| 754 | Sun Refining & Marketing | Philadelphia, PA 19103 | Oil & Gas Operator | Jul 2015 |
| 755 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | Mar 2025 |
| 756 | Sunnybook Transmission Inc | Houston, TX 77002 | Oil & Gas Operator | Oct 1992 |
| 757 | Sunoco Partners MKT & Terminal | Tulsa, OK 74102-2039 | Oil & Gas Operator | Jan 2019 |
| 758 | Sunrise Energy Co | Dallas, TX 75206 | Oil & Gas Operator | Aug 1993 |
| 759 | Superior Midstream, LLC | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2020 |
| 760 | Sweetwater Exploration LLC | Norman, OK 73069-5636 | Oil & Gas Operator | Dec 2024 |
| 761 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
| 762 | SWN Production LLC | Spring, TX 77389-4954 | Oil & Gas Operator | Feb 2022 |
| 763 | T & D Oil | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2025 |
| 764 | T-D Oil Inc | Cement, OK 73017-0065 | Oil & Gas Operator | May 2020 |
| 765 | Tack Operating LLC | Oklahoma City, OK 73172-1492 | Oil & Gas Operator | Aug 2021 |
| 766 | Tapoil Inc | Elmore City, OK 73433-9077 | Oil & Gas Operator | Jul 2021 |
| 767 | Tapstone Energy LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Jan 2025 |
| 768 | Tarrant Tracy Dba Trace Oil | Crescent, OK 73028 | Oil & Gas Operator | Feb 2021 |
| 769 | Tat, Inc. | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2023 |
| 770 | TD Oil & Gas LLC | Duncan, OK 73533-1851 | Oil Operator | Apr 2023 |
| 771 | TD Operating Inc | Hinton, OK 73047 | Oil & Gas Operator | Jan 2025 |
| 772 | Te-Ray Energy, Inc. | Oklahoma City, OK 73108 | Oil & Gas Operator | Dec 2024 |
| 773 | Te-Ray Resources, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Mar 2025 |
| 774 | Technical Energy Services, Inc. | Norman, OK 73070 | Oil & Gas Operator | Dec 2024 |
| 775 | Tenaska Marketing Ventures | Omaha, NE 68154 | Oil & Gas Operator | Mar 2021 |
| 776 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Dec 2024 |
| 777 | Teocalli Exploration LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jan 2025 |
| 778 | Terraquest Corporation | Edmond, OK 73034 | Oil & Gas Operator | Jul 1997 |
| 779 | Territory Resources LLC | Stillwater, OK 74074-1869 | Oil & Gas Operator | Feb 2025 |
| 780 | Tex-Ok Energy LP | Cody, WY 82414 | Oil & Gas Operator | Jan 2025 |
| 781 | Tex/Con Oil & Gas Company | Houston, TX 77074 | Oil & Gas Operator | Feb 2001 |
| 782 | Texaco Exploration And Production Inc | Houston, TX 77236 | Oil & Gas Operator | Nov 2024 |
| 783 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 784 | Texas Southwest Gas LLC | Tulsa, OK 74121 | Oil & Gas Operator | Oct 2022 |
| 785 | TGX Corporation | Houston, TX 77002 | Oil & Gas Operator | Sep 2004 |
| 786 | The Quintin Little Company Inc | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2025 |
| 787 | Thomas J L Engineering Inc | Edmond, OK 73003-0026 | Oil & Gas Operator | Jul 2016 |
| 788 | Three Sands Oil Inc | Perry, OK 73077 | Oil & Gas Operator | May 2023 |
| 789 | Tide West Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2021 |
| 790 | Tilley Oil Inc | Velma, OK 73491 | Oil & Gas Operator | Jan 2025 |
| 791 | Titan Resources LTD | Limaville, OH 44640 | Oil & Gas Operator | Jan 2025 |
| 792 | TLS Oil & Gas Inc | Kingfisher, OK 73750-0901 | Oil & Gas Operator | Dec 2024 |
| 793 | Toklan Oil And Gas Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2025 |
| 794 | Totalfinaelf E&P USA Inc | Houston, TX 77024 | Oil & Gas Operator | Jul 2007 |
| 795 | Trace Oil & Gas LP | Cement, OK 73017 | Oil & Gas Operator | Dec 2024 |
| 796 | Trail Ridge Energy Partners, LLC | Grapevine, TX 76051 | Oil & Gas Operator | Jan 2025 |
| 797 | Transok LLC | Oklahoma City, OK 73124-0300 | Oil & Gas Operator | Jul 2020 |
| 798 | Travis Peak Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 799 | Trepco Production Company, Inc. | Yukon, OK 73099 | Oil & Gas Operator | Jan 2025 |
| 800 | Triad Energy Corp. Of Texas | Houston, TX 77057-2696 | Oil & Gas Operator | Sep 2014 |