| 2801 | SW Associates | | Oil & Gas Operator | Dec 1985 |
| 2802 | SW Gas Stge | | Gas Operator | Oct 2015 |
| 2803 | SW Operating, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Sep 2000 |
| 2804 | Swab Oil Co. | Midland, TX 79701 | Oil & Gas Operator | Nov 2025 |
| 2805 | Swadley Et Al | Holdenville, OK 74848-0794 | Oil & Gas Operator | Nov 2014 |
| 2806 | Swadley Roy W & Judith I | Holdenville, OK 74848-0794 | Oil & Gas Operator | Mar 2015 |
| 2807 | Swag Oil And Gas Company, Inc. | | Oil & Gas Operator | Jul 1982 |
| 2808 | Swaim, Charles | Tolar, TX 76476 | Oil & Gas Operator | Apr 2020 |
| 2809 | Swain Clinton Edward | Ochelata, OK 74051-2220 | Oil Operator | May 2025 |
| 2810 | Swain, Randall R | | Oil Operator | Aug 2000 |
| 2811 | Swamp Angel Energy LLC | Wichita, KS 67220-3900 | Oil & Gas Operator | Dec 2009 |
| 2812 | Swampfox Oilfield Services, LLC | | Oil & Gas Operator | Dec 2024 |
| 2813 | Swan Lake Properties, Inc. | | Oil Operator | Jul 1987 |
| 2814 | Swan Oil Co | Kellyville, OK 74039-5607 | Oil & Gas Operator | Dec 2023 |
| 2815 | Swan PC, LP | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2025 |
| 2816 | Swan Production Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2009 |
| 2817 | Swan Richard N | Claremore, OK 74018-0503 | Oil Operator | Aug 2013 |
| 2818 | Swander, Everett | Cunningham, KS 67035 | Oil Operator | May 1998 |
| 2819 | Swanner Properties | Wichita Falls, TX 76309 | Oil & Gas Operator | Nov 2025 |
| 2820 | Swanson & Vestal | Electra, TX 76360 | Oil & Gas Operator | Oct 1997 |
| 2821 | Swanson Douglas L & Sharon | Bartlesville, OK 74003-9319 | Oil Operator | Jun 2025 |
| 2822 | Swanson G T | Duncan, OK 73533 | Oil & Gas Operator | Nov 1998 |
| 2823 | Swanson Operating, Inc. | Holliday, TX 76366 | Oil Operator | Nov 2025 |
| 2824 | Swanson, Tom | Electra, TX 76360 | Oil & Gas Operator | Oct 2004 |
| 2825 | Swanson, Tommy Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Mar 2017 |
| 2826 | Swaringin, Howard Operating | Maryneal, TX 79535 | Oil & Gas Operator | May 2003 |
| 2827 | Swartout, John D & Sandra | Sherman, NY 14781 | Gas Operator | Dec 2024 |
| 2828 | Swartz Oil Company | San Angelo, TX 76906 | Oil & Gas Operator | Nov 2025 |
| 2829 | Swartz, Guy A. | San Angelo, TX 76904 | Oil & Gas Operator | Aug 1993 |
| 2830 | SWD Acidizing, Inc. | | Oil Operator | Feb 2014 |
| 2831 | SWD, Inc. | | Oil Operator | Jan 2025 |
| 2832 | Swearingen Robert E Dba Sabo Production | Seminole, OK 74868 | Oil & Gas Operator | Jul 2025 |
| 2833 | Sweet Crude Operating LLC | Brenham, TX 77834 | Oil & Gas Operator | Nov 2025 |
| 2834 | Sweet Texas T Energy LLC | Clyde, TX 79510 | Oil Operator | Nov 2025 |
| 2835 | Sweetwater Drilling Co., Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Nov 2025 |
| 2836 | Sweetwater Exploration LLC | Norman, OK 73069-5636 | Oil & Gas Operator | Jul 2025 |
| 2837 | Sweetwater Production, Inc. | San Angelo, TX 76906 | Oil & Gas Operator | Nov 2025 |
| 2838 | Swenco-Western I | | Oil Operator | Sep 1987 |
| 2839 | Swenco-Western Inc | Houston, TX 77060 | Oil & Gas Operator | Jan 1997 |
| 2840 | Swenson Backhoe Service, Inc. | Electra, TX 76360 | Oil Operator | Nov 2025 |
| 2841 | Swenson, Clifford E. | Henrietta, TX 76365 | Oil & Gas Operator | Nov 2025 |
| 2842 | Swenton Michael J | Tulsa, OK 74105 | Oil & Gas Operator | Jul 2025 |
| 2843 | Swepi LP | Houston, TX 77079 | Oil & Gas Operator | Jul 2020 |
| 2844 | Swepi LP And Miller Brothers | | Oil & Gas Operator | Oct 1992 |
| 2845 | Swepi/Western Division | Houston, TX 77210 | Oil & Gas Operator | Aug 1984 |
| 2846 | Swevco-Sabw LLC | Houston, TX 77002 | Oil & Gas Operator | Aug 2025 |
| 2847 | Swiess & Thomas | San Antonio, TX 78247 | Oil Operator | Nov 2025 |
| 2848 | Swift A W & Company Inc | Sand Springs, OK 74063-5124 | Oil Operator | Jun 2003 |
| 2849 | Swift Energy Com | | Oil & Gas Operator | Sep 1995 |
| 2850 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
| 2851 | Swift Energy Operating, LLC | Houston, TX 77079 | Oil & Gas Operator | Jun 2017 |
| 2852 | Swinea Well Service Inc | Drumright, OK 74030 | Oil & Gas Operator | Mar 2015 |
| 2853 | Swingle Drilling Inc | Crooksville, OH 43731 | Oil & Gas Operator | Dec 2024 |
| 2854 | Swinkwood Oil Co | | Oil Operator | Apr 2015 |
| 2855 | SWJN Oil Company | Kilgore, TX 75663 | Oil Operator | Nov 2025 |
| 2856 | SWN Production (Louisiana), LLC | | Oil & Gas Operator | Dec 2024 |
| 2857 | SWN Production (Ohio), LLC | Morgantown, WV 26508 | Oil & Gas Operator | Mar 2024 |
| 2858 | SWN Production Company, LLC | Spring, TX 77391 | Oil & Gas Operator | Aug 2025 |
| 2859 | SWN Production LLC | Spring, TX 77389-4954 | Oil & Gas Operator | Feb 2022 |
| 2860 | Swo & Ism, LLC | | Oil & Gas Operator | Dec 2021 |
| 2861 | Swope Corp. | Austin, TX 78735 | Oil & Gas Operator | Nov 2025 |
| 2862 | Swordfish Energy Operating, LLC | Houston, TX 77060 | Oil & Gas Operator | Nov 2025 |
| 2863 | SWS | Humble, TX 77338 | Oil Operator | Nov 2025 |
| 2864 | SWS Operating LLC | Lawton, OK 73501-3236 | Oil Operator | Sep 2024 |
| 2865 | SWV Energy Operating LLC | Spring, TX 77379 | Gas Operator | Dec 2018 |
| 2866 | SX54, LLC | Sheridan, WY 82801 | Oil Operator | Nov 2017 |
| 2867 | Sycamore Development Partners LLC | | Oil & Gas Operator | Sep 2025 |
| 2868 | Sydri Operating, LLC | Dallas, TX 75231 | Oil & Gas Operator | Nov 2025 |
| 2869 | Sydson D'Oro Exploration Co. | Houston, TX 77079 | Oil & Gas Operator | Jan 1992 |
| 2870 | Sydson Energy, Inc. | Houston, TX 77027 | Oil & Gas Operator | Nov 2025 |
| 2871 | Syj Oil & Gas | San Antonio, TX 78209 | Oil Operator | Sep 2000 |
| 2872 | Syj Oil & Gas, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Nov 2025 |
| 2873 | Sylvan Energy, LLC | Pittsburgh, PA 15211 | Oil & Gas Operator | Nov 2025 |
| 2874 | Sylvan Oil Operating Company | Tulsa, OK 74103-3516 | Oil & Gas Operator | Apr 2016 |
| 2875 | Sylvite Corp | Tulsa, OK 741363908 | Oil & Gas Operator | Dec 2000 |
| 2876 | Symank, Steve | Olney, TX 76374 | Oil & Gas Operator | Nov 2025 |
| 2877 | Symba American Oil, Inc | Houston, TX 77056 | Oil Operator | Nov 2025 |
| 2878 | Synd Enterprises Inc | Lakewood, NY 14750-9613 | Oil & Gas Operator | Dec 2006 |
| 2879 | Syndex Resources, Inc. | Wellesley, MA 02181-000 | Oil & Gas Operator | Dec 2021 |
| 2880 | Synergex Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Jul 2025 |
| 2881 | Synergy Development Corp | | Oil Operator | Apr 2011 |
| 2882 | Synergy Offshore LLC | Houston, TX 77024 | Oil & Gas Operator | Feb 2022 |
| 2883 | Synergy Oil & Gas LLC | | Oil & Gas Operator | Aug 2025 |
| 2884 | Synergy Oil & Gas, Inc. | Houston, TX 77024 | Oil & Gas Operator | Nov 2019 |
| 2885 | Synergy Oil & Gas, Inc. (A) | Houston, TX 77024 | Oil & Gas Operator | Aug 2001 |
| 2886 | Synergy Oil & Gas, L.P. | Houston, TX 77024 | Oil & Gas Operator | May 2012 |
| 2887 | Synergy Operating Co., LLC | Dallas, TX 75225 | Oil & Gas Operator | Nov 2025 |
| 2888 | Synergy Operating LLC | Farmington, NM 87499 | Oil & Gas Operator | Jul 2024 |
| 2889 | Synergy Production Company | Houston, TX 77024 | Oil & Gas Operator | Jan 1996 |
| 2890 | Synergy Resources | Artesia, NM 88210 | Oil & Gas Operator | Jan 2015 |
| 2891 | Syntax Energy Corporation | Denton, TX 76210 | Oil Operator | Nov 2025 |
| 2892 | Synthetic Energy Corporation | Houston, TX 77006 | Oil Operator | Nov 2025 |
| 2893 | Szumigala, Edward R. & Ruth A. | Dunkirk, NY 14048 | Gas Operator | Dec 2024 |