| 701 | Robuck Petroleum, LLC | Nacogdoches, TX 75965 | Oil & Gas Operator | Apr 2025 |
| 702 | Rock Operating | Abilene, TX 79608 | Oil & Gas Operator | Apr 2025 |
| 703 | Rocking, R, Drilling & Prod Co. | Bowie, TX 76230 | Oil & Gas Operator | Apr 2025 |
| 704 | Rockoil Energy Of Texas, Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Apr 2025 |
| 705 | Rogers Drilling Co. | Olney, TX 76374 | Oil & Gas Operator | Apr 2025 |
| 706 | Rogers Oilfield Op, Corp. | Granbury, TX 76048 | Oil & Gas Operator | Jul 2019 |
| 707 | Roil Mineral & Land Co. | Dallas, TX 75379 | Oil & Gas Operator | Apr 2025 |
| 708 | Ropar Operating Co. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2025 |
| 709 | Roseland Oil & Gas Inc | Rockwall, TX 75087 | Oil & Gas Operator | Feb 2003 |
| 710 | Rover Operating Inc | Richardson, TX 75080 | Oil & Gas Operator | Apr 2000 |
| 711 | Royal Oil LTD. Co. | Hobbs, NM 88241 | Oil & Gas Operator | Mar 1996 |
| 712 | Royal Petroleum Corp. | Dallas, TX 75229 | Oil & Gas Operator | Jan 2025 |
| 713 | Rush, Charles Ray | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 714 | Rwa, LLC | Boyd, TX 76023 | Oil & Gas Operator | Apr 2025 |
| 715 | Ryan, Joseph G. | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 716 | Ryder Scott Management, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2018 |
| 717 | Ryder Scott Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2005 |
| 718 | S & J Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2015 |
| 719 | S & P Energy | Benbrook, TX 76126 | Oil & Gas Operator | Oct 1994 |
| 720 | S & P Energy, Inc. | Benbrook, TX 76126 | Oil & Gas Operator | Aug 2003 |
| 721 | S&G Oil LLC | Wichita Falls, TX 76309 | Oil & Gas Operator | Apr 2025 |
| 722 | S.B. Street Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 723 | Sabre Oil And Gas Corp. | Houston, TX 77063 | Oil & Gas Operator | Apr 2025 |
| 724 | Sabre Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2025 |
| 725 | Sage Natural Resources LLC | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2025 |
| 726 | Sage Oil And Gas, LLC | Graham, TX 76450 | Gas Operator | Apr 2025 |
| 727 | Salt Of The Earth Energy, LLC | Montgomery, TX 77356 | Oil & Gas Operator | Apr 2025 |
| 728 | Samson Hydrocarbons Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2016 |
| 729 | Samson Lone Star LP | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2007 |
| 730 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2025 |
| 731 | Sanco Operating Company | Bullard, TX 75757 | Oil & Gas Operator | Apr 2025 |
| 732 | Sandollar Oil & Gas, Inc. | Hallsville, TX 75650 | Oil & Gas Operator | Feb 1993 |
| 733 | Schalk, Thomas S. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 1995 |
| 734 | Schlittler, Willard | Bryson, TX 76427 | Oil & Gas Operator | Apr 2025 |
| 735 | Schmid Properties Inc | Hico, TX 76457 | Oil & Gas Operator | Apr 2025 |
| 736 | Scout Energy Management LLC | Dallas, TX 75240 | Oil & Gas Operator | Apr 2025 |
| 737 | Se USA Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2009 |
| 738 | Seattle'S Best Consulting LLC | Austin, TX 78731 | Oil & Gas Operator | Apr 2025 |
| 739 | Self, Charles D. | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2016 |
| 740 | Self, Charles Lynn | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2025 |
| 741 | Selous Energy, LLC | Fort Worth, TX 76109 | Oil & Gas Operator | Jul 2015 |
| 742 | Senkel, Wesley, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2007 |
| 743 | Sequoia Oil & Gas, Inc. | Fort Worth, TX 76164 | Oil & Gas Operator | Jan 1993 |
| 744 | Shanks, Bob | Haskell, OK 74436 | Oil Operator | Sep 2002 |
| 745 | Sharp, John T. | Jacksboro, TX 76458 | Oil & Gas Operator | Jul 2014 |
| 746 | Shelley, Richard W | Wichita Falls, TX 76310 | Oil & Gas Operator | Jun 2015 |
| 747 | Shidler, Mark L., Inc. | Houston, TX 77055 | Oil & Gas Operator | Apr 2025 |
| 748 | Shines'S Oil Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Oct 2009 |
| 749 | Shoshone Oil Company | Dallas, TX 75244 | Oil & Gas Operator | May 1994 |
| 750 | Siegfried R H Inc | Tulsa, OK 74104 | Oil & Gas Operator | Mar 2008 |
| 751 | Sierra Exploration Company | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2008 |
| 752 | Silver Creek Oil & Gas, LLC | Flower Mound, TX 75022 | Oil & Gas Operator | Apr 2025 |
| 753 | Silver Creek Resources, LLC | Irving, TX 75038 | Oil & Gas Operator | Apr 2017 |
| 754 | Simpson Oil & Land Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 755 | Six C Oil | Bowie, TX 76230 | Oil & Gas Operator | Sep 2011 |
| 756 | Skybridge Energy LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2025 |
| 757 | Slick Production, LLC | Muenster, TX 76252 | Oil & Gas Operator | Apr 2025 |
| 758 | Smith & Spragins | Wichita Falls, TX 76301 | Oil & Gas Operator | Jul 1995 |
| 759 | Smith Pipe Of Abilene | Abilene, TX 79608 | Oil & Gas Operator | Apr 2025 |
| 760 | Smith Production Inc. | The Woodlands, TX 77381 | Oil & Gas Operator | Apr 2025 |
| 761 | Snow Operating Co., Inc. | Haltom City, TX 76117 | Oil & Gas Operator | Feb 2024 |
| 762 | Sojourner Drilling Corporation | Abilene, TX 79604 | Oil & Gas Operator | Apr 2025 |
| 763 | Somerset Operating, LLC | Weatherford, TX 76086 | Gas Operator | Apr 2025 |
| 764 | Southern Alliance Oil Corp. | Grapevine, TX 76099 | Oil & Gas Operator | Apr 2025 |
| 765 | Southlake Operating LLC | Weatherford, TX 76086 | Oil & Gas Operator | Apr 2025 |
| 766 | Spiller Oil & Gas Company | Jacksboro, TX 76458 | Oil Operator | Apr 2025 |
| 767 | Spindletop Oil & Gas Co. | Dallas, TX 75230 | Oil & Gas Operator | Apr 2025 |
| 768 | Spragins, Ed | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2025 |
| 769 | Squaw Mountain Oil, LLC | Jacksboro, TX 76458 | Oil Operator | Apr 2025 |
| 770 | SSC, Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Apr 2025 |
| 771 | St. Johns Operating #1 L.P. | Houston, TX 77060 | Oil & Gas Operator | Aug 2023 |
| 772 | Sta-Kel Incorporated | Graham, TX 76450 | Oil & Gas Operator | Dec 2000 |
| 773 | Staghorn Resources, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |
| 774 | Stamper Operating Co., Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2025 |
| 775 | Star Of Texas Energy SRVS, Inc. | Austin, TX 78702 | Oil & Gas Operator | Apr 2025 |
| 776 | Staub, Larry, Inc. | Azle, TX 76020 | Oil & Gas Operator | Apr 2025 |
| 777 | Steinberger, Gerald | Windthorst, TX 76389 | Oil & Gas Operator | Sep 2007 |
| 778 | Stephens & Johnson Operating Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2025 |
| 779 | Stephens Energy Corp. | Graham, TX 76450 | Oil & Gas Operator | Feb 2022 |
| 780 | Stephens, Morris | Graham, TX 76450 | Oil & Gas Operator | May 1996 |
| 781 | Stivers Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 1995 |
| 782 | Stober Oil And Gas Services, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2025 |
| 783 | Stone Creek Operating, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Apr 2025 |
| 784 | Stovall Operating Co. | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 785 | Strata Operating, Inc. | Corpus Chrsti, TX 78466 | Oil & Gas Operator | Apr 2025 |
| 786 | Stratco Operating Co Inc | Austin, TX 78701 | Oil & Gas Operator | Apr 2025 |
| 787 | Street, Spencer B., Jr. | Graham, TX 76450 | Oil & Gas Operator | Mar 1998 |
| 788 | Strickland, H.W. | Henrietta, TX 76365 | Oil & Gas Operator | Dec 1999 |
| 789 | Sundance Resources, Inc. | Rio VIsta, TX 76093 | Oil & Gas Operator | Mar 2012 |
| 790 | Sunrise Enterprises | Bowie, TX 76230 | Oil & Gas Operator | Dec 2016 |
| 791 | Swan PC, LP | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2025 |
| 792 | Swan Production Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2009 |
| 793 | Sweetwater Drilling Co., Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Apr 2025 |
| 794 | Synergy Operating Co., LLC | Dallas, TX 75225 | Oil & Gas Operator | Apr 2025 |
| 795 | T. R. Production, Inc. | Pilot Point, TX 76258 | Oil & Gas Operator | Jul 2021 |
| 796 | Talus Inc | Graham, TX 76450-1210 | Oil & Gas Operator | Feb 2017 |
| 797 | Tam2 Squared Operating, LLC | Cisco, TX 76437 | Oil & Gas Operator | Apr 2025 |
| 798 | Tamarack Petroleum Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2025 |
| 799 | Targa Midstream Services LLC | Houston, TX 77002 | Oil Operator | Mar 2023 |
| 800 | Targo Oil & Gas, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 2025 |