| 701 | Samson Hydrocarbons Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2016 |
| 702 | Samson Oil Company | | Oil & Gas Operator | Feb 2001 |
| 703 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2024 |
| 704 | Sand Point Production Inc | Oklahoma City, OK 73172 | Oil & Gas Operator | Sep 2024 |
| 705 | Sandridge Energy, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2018 |
| 706 | Sandridge Exploration And Production LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Dec 2024 |
| 707 | Sanguine Gas Exploration, LLC | Tulsa, OK 74119 | Oil & Gas Operator | Dec 2024 |
| 708 | Sanook Inc | Oklahoma City, OK 73156-0548 | Oil & Gas Operator | Jan 2007 |
| 709 | Santa Fe Minerals, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Sep 2013 |
| 710 | Santa Fe-Andover Oil Co | Tulsa, OK 74172 | Oil & Gas Operator | Sep 2000 |
| 711 | Scott SR Kermit | Okarche, OK 73762 | Oil & Gas Operator | Mar 2015 |
| 712 | Seagull Energy E & P Inc | Houston, TX 77002 | Oil & Gas Operator | Jan 2015 |
| 713 | Seagull Mid-South Inc | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 714 | Seagull Midcon Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 715 | Seals And Brown Oil Operating | Norman, OK 73072-3020 | Oil & Gas Operator | Sep 2024 |
| 716 | Seals Oil Company | Fox, OK 73435-0222 | Oil & Gas Operator | Nov 2011 |
| 717 | Sec Production Inc | Edmond, OK 73013-3709 | Oil & Gas Operator | Oct 2024 |
| 718 | Sensor Oil & Gas Inc | Duncan, OK 73534 | Oil & Gas Operator | May 2013 |
| 719 | Sequent Exploration Inc | | Oil & Gas Operator | Oct 2017 |
| 720 | Seven J Oil Inc | Jenning, OK 74038-9729 | Oil & Gas Operator | Sep 2024 |
| 721 | Seventh Corporation The | Oklahoma City, OK 73107 | Oil & Gas Operator | May 2006 |
| 722 | Shaver Tommy L | Kingfisher, OK 73750-9612 | Oil & Gas Operator | Apr 2015 |
| 723 | Shawver & Son Inc | Oklahoma City, OK 73154-0778 | Oil & Gas Operator | Oct 2024 |
| 724 | Shawver Energy Inc | Oklahoma City, OK 73154-0683 | Oil & Gas Operator | Apr 2014 |
| 725 | Shell Trading Us Company | Houston, TX 77210 | Oil & Gas Operator | Sep 2024 |
| 726 | Shoreline Operating LLC | Oklahoma City, OK 73113 | Oil & Gas Operator | Oct 2024 |
| 727 | Sidwell Oil & Gas, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Sep 2014 |
| 728 | Silver Creek Oil & Gas, LLC | Flower Mound, TX 75022 | Oil & Gas Operator | Dec 2024 |
| 729 | Silver Pines Energy Corp. | Houston, TX 77005 | Oil & Gas Operator | Sep 2024 |
| 730 | Silverridge Corp | Van Buren, AR 72956 | Oil & Gas Operator | Mar 2015 |
| 731 | Simpson Oil & Land Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2024 |
| 732 | Singer Oil Co LLC | Hennessey, OK 73742 | Oil & Gas Operator | Oct 2024 |
| 733 | Singer Oil Company | Oklahoma City, OK 73148 | Oil & Gas Operator | Sep 2024 |
| 734 | Sitco Inc | Yukon, OK 73099 | Oil & Gas Operator | Jul 1995 |
| 735 | Skycap Energy, LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Oct 2024 |
| 736 | SL Petroleum LLC | Edmond, OK 73013-8801 | Oil & Gas Operator | Apr 2022 |
| 737 | Slawson Exploration Company Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2024 |
| 738 | Slawson, Donald C. | Wichita, KS 67202 | Oil & Gas Operator | Apr 2024 |
| 739 | SLT Dakota Operating, Inc. | Yukon, OK 73099 | Oil & Gas Operator | Dec 2024 |
| 740 | SM Energy Company | Midland, TX 79707 | Oil & Gas Operator | Dec 2024 |
| 741 | Smith Production Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2024 |
| 742 | Snuffy'S Oilfield Service Inc | Hennessey, OK 73742-6511 | Oil & Gas Operator | Nov 2014 |
| 743 | Snyder Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2015 |
| 744 | Sooner Oil & Gas | Fairview, OK 73737-1806 | Oil & Gas Operator | Sep 2024 |
| 745 | Sooner Oilfield Services Inc | Piedmont, OK 73078-0810 | Oil & Gas Operator | May 2024 |
| 746 | Sooner Trend Exploration Inc | Kingfisher, OK 73750-4752 | Oil & Gas Operator | Dec 2015 |
| 747 | Southern Int'L Inc | Oklahoma City, OK 73107 | Oil & Gas Operator | May 2007 |
| 748 | Southern Resources Inc | Oklahoma City, OK 73118-4821 | Oil & Gas Operator | Oct 2024 |
| 749 | Southland Royalty Company | Houston, TX 77210 | Oil & Gas Operator | Sep 2011 |
| 750 | Southwest Energy LP | Houston, TX 77002 | Oil & Gas Operator | Sep 2024 |
| 751 | Southwest Exploration Company | Oklahoma City, OK 73132-2230 | Oil & Gas Operator | Jun 2017 |
| 752 | Southwest Royalties Inc | Midland, TX 79710 | Oil & Gas Operator | Dec 2024 |
| 753 | Southwestern Exploration Consultants Inc | Oklahoma City, OK 73118-1116 | Oil & Gas Operator | Oct 2024 |
| 754 | SP Energy Development Company | Seattle, WA 98101-3277 | Oil & Gas Operator | Mar 2015 |
| 755 | Sparks Petroleum Company | Oklahoma City, OK 73128 | Oil & Gas Operator | Mar 1998 |
| 756 | Sparks Resources Inc | Bristow, OK 74010 | Oil & Gas Operator | Oct 2024 |
| 757 | Spectrum Energy Inc | Scottsdale, AZ 85257 | Oil & Gas Operator | Oct 2003 |
| 758 | Spess Oil Company Inc | Cleveland, OK 74020-4617 | Oil & Gas Operator | Oct 2024 |
| 759 | Spring Operating Company | Edmond, OK 73034 | Oil & Gas Operator | Oct 2024 |
| 760 | Spring Valley Oil & Gas Inc | Drummond, OK 73735 | Oil & Gas Operator | Sep 2024 |
| 761 | St. Mary Operating Company | Denver, CO 80203 | Oil & Gas Operator | Mar 2019 |
| 762 | Staghorn Energy, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2024 |
| 763 | Staghorn Petroleum II LLC | Tulsa, OK 74103-3500 | Oil & Gas Operator | Oct 2024 |
| 764 | Staghorn Resources, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |
| 765 | Statex Petroleum Inc | Dallas, TX 75229 | Oil & Gas Operator | Dec 2000 |
| 766 | Statoil Oil & Gas LP | Austin, TX 78730 | Oil & Gas Operator | Oct 2018 |
| 767 | Stephen Michael Inc | Midwest City, OK 73130-5200 | Oil & Gas Operator | Oct 2015 |
| 768 | Stephens Production Company | The Woodlands, TX 77381 | Oil & Gas Operator | Sep 2024 |
| 769 | Stewart K Petroleum Corp | Edmond, OK 73013 | Oil & Gas Operator | Mar 2015 |
| 770 | Stone Oak Operating, LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Sep 2024 |
| 771 | Stoneriver Energy, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Dec 2024 |
| 772 | Sun Refining & Marketing | Philadelphia, PA 19103 | Oil & Gas Operator | Jul 2015 |
| 773 | Sunoco Partners MKT & Terminal | Tulsa, OK 74102-2039 | Oil & Gas Operator | Jan 2019 |
| 774 | Sunrise Energy Co | Dallas, TX 75206 | Oil & Gas Operator | Aug 1993 |
| 775 | Sunterra Energy Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2009 |
| 776 | Superior Midstream, LLC | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2020 |
| 777 | Sweetwater Exploration LLC | Norman, OK 73069-5636 | Oil & Gas Operator | Sep 2024 |
| 778 | SWN Production LLC | Spring, TX 77389-4954 | Oil & Gas Operator | Feb 2022 |
| 779 | T E L Oil & Gas Corporation | Guymon, OK 73941 | Gas Operator | Sep 2024 |
| 780 | T S B T Oil & Gas Properties | Moore, OK 73160-8126 | Oil & Gas Operator | Jan 2018 |
| 781 | Tack Operating LLC | Oklahoma City, OK 73172-1492 | Oil & Gas Operator | Aug 2021 |
| 782 | Tamworth Resources LLC | Broken Arrow, OK 74012 | Oil & Gas Operator | Sep 2024 |
| 783 | Tapstone Energy LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Oct 2024 |
| 784 | Tat, Inc. | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2023 |
| 785 | Taylor John A | | Oil & Gas Operator | Jan 2016 |
| 786 | TD Operating Inc | Hinton, OK 73047 | Oil & Gas Operator | Sep 2024 |
| 787 | Te-Ray Energy, Inc. | Oklahoma City, OK 73108 | Oil & Gas Operator | Sep 2024 |
| 788 | Te-Ray Resources, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Dec 2024 |
| 789 | Tekenergy, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 790 | Temex Energy, Inc. | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
| 791 | Tenaska Marketing Ventures | Omaha, NE 68154 | Oil & Gas Operator | Mar 2021 |
| 792 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Sep 2024 |
| 793 | Teocalli Exploration LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Oct 2024 |
| 794 | Terra Production Company | Okemah, OK 74859-5924 | Oil & Gas Operator | Apr 2020 |
| 795 | Texaco Expl. And Prod. Inc. | Houston, TX 77236 | Oil & Gas Operator | Aug 2024 |
| 796 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 797 | Texas Meridian Operating Co. Inc | Houston, TX 77079 | Oil & Gas Operator | Oct 1993 |
| 798 | Texas Southwest Gas LLC | Tulsa, OK 74121 | Oil & Gas Operator | Oct 2022 |
| 799 | TGX Corporation | Houston, TX 77002 | Oil & Gas Operator | Sep 2004 |
| 800 | The Quintin Little Company Inc | Ardmore, OK 73401 | Oil & Gas Operator | Oct 2024 |