| 701 | Southwest Land & Minerals, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Aug 2003 |
| 702 | Southwest Loop 1604, LTD. | San Antonio, TX 78209 | Oil Operator | Sep 2022 |
| 703 | Southwest Oil & Land, Inc. | Corpus Chrsti, TX 78460 | Oil & Gas Operator | Dec 1999 |
| 704 | Southwest Operating, Inc.-Tyler | Tyler, TX 75701 | Oil & Gas Operator | Apr 2024 |
| 705 | Southwest Petroleum | San Antonio, TX 78253 | Oil & Gas Operator | Apr 2024 |
| 706 | Southwest Resources, Inc. | Brenham, TX 77834 | Oil & Gas Operator | Apr 2024 |
| 707 | Southwest Royalties Inc | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 708 | Southwest-Operating | Penwell, TX 79776 | Oil & Gas Operator | Apr 2024 |
| 709 | Southwestern Electric Power Co | Dallas, TX 75266 | Oil & Gas Operator | Dec 1989 |
| 710 | Southwestern Energy Prod Co | Houston, TX 77032 | Oil & Gas Operator | Jun 2015 |
| 711 | Sovereign Petroleum Company, LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Jul 2013 |
| 712 | Sozo Natural Resources LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2024 |
| 713 | Space Production Inc. | Monahans, TX 79756 | Oil & Gas Operator | Apr 2024 |
| 714 | Spade Energy L.L.C. | Wichita Falls, TX 76310 | Gas Operator | Apr 2024 |
| 715 | Spain Oil Company | Somerset, TX 78069 | Oil & Gas Operator | Apr 2024 |
| 716 | Spalding Energy, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2024 |
| 717 | Sparkman Energy, LLC | Fort Worth, TX 76147 | Oil & Gas Operator | Apr 2024 |
| 718 | Sparks, Sidney A., Trustee | Alice, TX 78332 | Oil & Gas Operator | Jun 1996 |
| 719 | Sparta Exploration LLC | Houston, TX 77279 | Oil & Gas Operator | Apr 2024 |
| 720 | Spartan Oil Corporation | Abilene, TX 79601 | Oil & Gas Operator | Aug 2003 |
| 721 | Spartan Operating Company, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Feb 2013 |
| 722 | Spartan Petroleum Corporation | Houston, TX 77079 | Oil & Gas Operator | Oct 1987 |
| 723 | Spear Production Company, Inc. | Shreveport, LA 71161 | Oil Operator | Apr 2024 |
| 724 | Spearco Oil | Electra, TX 76360 | Oil & Gas Operator | Aug 2003 |
| 725 | Speartex Grain Company | Gruver, TX 79040 | Oil & Gas Operator | Apr 2024 |
| 726 | Special Energy Corporation | Stillwater, OK 74076 | Oil & Gas Operator | Apr 2024 |
| 727 | Special JHR Corp | Bridgeville, PA 15017 | Oil & Gas Operator | Apr 2024 |
| 728 | Spectral Oil & Gas Corporation | Humble, TX 77338 | Oil Operator | Apr 2024 |
| 729 | Spectrum Resources LLC | Charlotte, NC 28211-4081 | Oil Operator | Oct 2009 |
| 730 | Speed, F. Michael, Trustee | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Aug 1998 |
| 731 | Speegle Oil And Gas Company | Longview, TX 75605 | Oil & Gas Operator | Apr 2024 |
| 732 | Speller Oil Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2023 |
| 733 | Spence Energy Company | Dallas, TX 75206 | Oil & Gas Operator | Apr 2024 |
| 734 | Spence, Ralph Oil Company, Inc. | Tyler, TX 75701 | Oil & Gas Operator | Jun 2023 |
| 735 | Spencer Oil Company | Borger, TX 79007 | Oil & Gas Operator | Jan 2024 |
| 736 | Spencer-Cloughly Investments Inc | San Marcos, TX 78666 | Oil & Gas Operator | Aug 2002 |
| 737 | Spenergy Corp. | Midland, TX 79701 | Oil & Gas Operator | Dec 1999 |
| 738 | SPH Development, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Nov 2022 |
| 739 | Spheric Petroleum Inc. | Baltimore, MD 21208 | Oil & Gas Operator | Nov 2006 |
| 740 | Spi Operations LLC | Midland, TX 79710 | Oil & Gas Operator | Jan 2013 |
| 741 | Spicer Oil Company, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2008 |
| 742 | Spicewood Operating Company, LLC | Austin, TX 78746 | Oil & Gas Operator | Apr 2024 |
| 743 | Spikes, Harry | Henrietta, TX 76365 | Oil & Gas Operator | Sep 2000 |
| 744 | Spiller Oil & Gas Company | Jacksboro, TX 76458 | Oil Operator | Apr 2024 |
| 745 | Spiller Operating Co., Inc. | Round Rock, TX 78665 | Oil & Gas Operator | May 2015 |
| 746 | Spiller, H. G. | San Antonio, TX 78213 | Oil & Gas Operator | Oct 1993 |
| 747 | Spiller, J. A. Company | Austin, TX 78735 | Oil & Gas Operator | Jan 2016 |
| 748 | Spiller, J.A. | Austin, TX 78735 | Oil & Gas Operator | Jan 2016 |
| 749 | Spiller, Joseph A. | Austin, TX 78746 | Oil & Gas Operator | Oct 1993 |
| 750 | Spiller, Robert S. | San Antonio, TX 78213 | Oil & Gas Operator | Oct 1995 |
| 751 | Spindletop Drilling Co. | Dallas, TX 75230 | Oil & Gas Operator | Apr 2024 |
| 752 | Spindletop Oil & Gas Co. | Dallas, TX 75230 | Oil & Gas Operator | Apr 2024 |
| 753 | Spinnaker Exploration Co.,L.L.C. | Houston, TX 77002 | Oil & Gas Operator | Nov 2005 |
| 754 | Spiral Energy Corp. | Midland, TX 79705 | Oil & Gas Operator | Dec 2019 |
| 755 | Spirit Energy L.L.C. | Caddo Mills, TX 75135 | Oil & Gas Operator | Dec 2018 |
| 756 | Spirit O&G Operating, LLC | Houston, TX 77010 | Oil & Gas Operator | Apr 2024 |
| 757 | Spitfire Partners, LLC | Dallas, TX 75225 | Oil Operator | Apr 2024 |
| 758 | Spivey, R. L. | Olney, TX 76374 | Oil Operator | Jul 2005 |
| 759 | Sponte Operating, Inc. | Dallas, TX 75313 | Oil & Gas Operator | Apr 2024 |
| 760 | Spoonemore Brothers | Spearman, TX 79081 | Oil & Gas Operator | Nov 2019 |
| 761 | Spragins, Ed | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2024 |
| 762 | Spri Oil & Gas, LLC | Houston, TX 77090 | Oil & Gas Operator | Mar 2020 |
| 763 | Spring Resources, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jul 2007 |
| 764 | Spring Tree Management LC | Abilene, TX 79604 | Oil Operator | May 2013 |
| 765 | Springfield Oil Services, Inc. | Mamaroneck, NY 10543 | Oil & Gas Operator | Apr 2024 |
| 766 | Springs, Jesse | Luling, TX 78648 | Oil & Gas Operator | Jun 1998 |
| 767 | Sproul, C. R. Inc. | Eldorado, TX 76936 | Oil & Gas Operator | Aug 2000 |
| 768 | Spruiell Drilling Co., Inc. | Holliday, TX 76366 | Oil & Gas Operator | Apr 2024 |
| 769 | Spur Energy | Midland, TX 79708 | Oil & Gas Operator | Mar 1996 |
| 770 | Spur Operating Co. | Austin, TX 78701 | Oil & Gas Operator | Apr 2024 |
| 771 | Square Mile Energy, L.L.C. | Houston, TX 77057 | Oil & Gas Operator | Apr 2024 |
| 772 | Square One Corporation | Giddings, TX 78942 | Oil & Gas Operator | Dec 2012 |
| 773 | Square One Energy, Inc. | Tulsa, OK 74159 | Oil & Gas Operator | Oct 2015 |
| 774 | Squaw Mountain Oil, LLC | Jacksboro, TX 76458 | Oil Operator | Apr 2024 |
| 775 | Squyres Oil Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2024 |
| 776 | SR Production Corp. | Liberty, TX 77575 | Oil & Gas Operator | Mar 2010 |
| 777 | SRG Oil Corporation | Abilene, TX 79604 | Oil & Gas Operator | Apr 1994 |
| 778 | SRS Properties, LLC | Whitehouse, TX 75791 | Oil & Gas Operator | Apr 2024 |
| 779 | SRV Oil Co | Coleman, TX 76834 | Oil Operator | Apr 2024 |
| 780 | SS Operating LLC | Water Valley, TX 76958 | Oil Operator | Apr 2024 |
| 781 | SSC, Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Apr 2024 |
| 782 | St. Cajetan Oil Company, LLC | Gainesville, TX 76240 | Oil & Gas Operator | Apr 2024 |
| 783 | St. Clair Energy Corporation | Tulsa, OK 74153 | Oil & Gas Operator | Mar 2008 |
| 784 | St. Johns Operating #1 L.P. | Houston, TX 77060 | Oil & Gas Operator | Aug 2023 |
| 785 | St. Mary Energy Company | Houston, TX 77079 | Oil & Gas Operator | Aug 2008 |
| 786 | St. Mary Land & Exploration Co | Denver, CO 80201 | Oil & Gas Operator | Jun 2010 |
| 787 | St. Mary Operating Company | Denver, CO 80203 | Oil & Gas Operator | Mar 2019 |
| 788 | Stablerock Energy L.L.C. | Oklahoma City, OK 73106 | Oil & Gas Operator | Apr 2024 |
| 789 | Stacha, Eddy A. | Rice, TX 75155 | Oil & Gas Operator | Apr 2024 |
| 790 | Stacy Reamy | Purdon, TX 76679 | Oil Operator | Apr 2024 |
| 791 | Stagg Investment Group, Inc. | Midland, TX 79701 | Oil Operator | May 2013 |
| 792 | Staghorn Energy, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2023 |
| 793 | Staghorn Petroleum II LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2024 |
| 794 | Staghorn Resources, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |
| 795 | Stahl Petroleum Co. | Amarillo, TX 79118 | Oil & Gas Operator | Aug 2003 |
| 796 | Stal Oil Production, L.L.C. | Argyle, TX 76226 | Oil Operator | Apr 2024 |
| 797 | Staley Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2000 |
| 798 | Staley Operating Co. | Midland, TX 79702 | Oil & Gas Operator | Jul 2021 |
| 799 | Staley, Jack C. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2000 |
| 800 | Stalking Horse Energy, Limited Liability Company | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |