| 1 | Saba Energy Of Texas Inc | Houston, TX 77042 | Oil & Gas Operator | Jul 2007 |
| 2 | Sage Energy Company | San Antonio, TX 78215 | Oil & Gas Operator | Mar 2025 |
| 3 | Sahara Operating Company | Midland, TX 79704 | Oil & Gas Operator | Mar 2025 |
| 4 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
| 5 | Sandridge Exploration And Production LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Mar 2025 |
| 6 | Santa Fe Snyder Corporation | Houston, TX 77024 | Oil & Gas Operator | Oct 2000 |
| 7 | Sapient Energy Corp | Oklahoma City, OK 73154 | Oil & Gas Operator | Jan 2002 |
| 8 | Savannah Ross And Company, LLC | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 9 | SBJ Oil & Gas, LLC | Iraan, TX 79744 | Oil & Gas Operator | Mar 2025 |
| 10 | Schlachter Operating Corporation | Dallas, TX 75225 | Oil & Gas Operator | Mar 2025 |
| 11 | Schlagal, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2016 |
| 12 | Scout Energy Management LLC | Dallas, TX 75240 | Oil & Gas Operator | Mar 2025 |
| 13 | Scythian, LTD. | Midland, TX 79701 | Oil & Gas Operator | Dec 2020 |
| 14 | SDG Resources L.P. | Montrose, CO 81402 | Oil & Gas Operator | May 2006 |
| 15 | Sea Sand Oil Company | Fort Worth, TX 76185 | Oil & Gas Operator | Jun 1995 |
| 16 | Sed Energy Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 17 | Seguro Oil And Gas, LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2024 |
| 18 | SFM Holdings, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jul 1995 |
| 19 | Sharp Image Energy, Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Mar 2025 |
| 20 | Shell Trading Us Company | Houston, TX 77210 | Oil & Gas Operator | Dec 2024 |
| 21 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 22 | Sheridan Production Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Dec 2024 |
| 23 | Shidler, Mark L., Inc. | Houston, TX 77055 | Oil & Gas Operator | Mar 2025 |
| 24 | Shinnery Oil Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Mar 2025 |
| 25 | Siana Oil & Gas | Conroe, TX 77305 | Oil & Gas Operator | Mar 2025 |
| 26 | Silver Cross Energy Partners LLC | Richmond, TX 77469 | Oil & Gas Operator | Dec 2024 |
| 27 | Simata Energy, LLC | Midland, TX 79708 | Oil & Gas Operator | Mar 2025 |
| 28 | Simmons, L.B. Energy, Inc. | Midland, TX 79705 | Oil & Gas Operator | Nov 2000 |
| 29 | Simpson Bros. Oil Co. | Odessa, TX 79760 | Oil & Gas Operator | Jan 2001 |
| 30 | Simpson Oil Company | Odessa, TX 79760 | Oil & Gas Operator | Oct 2004 |
| 31 | Slant Operating, LLC | Lafayette, LA 70503 | Oil & Gas Operator | Mar 2025 |
| 32 | Smith, John A. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 33 | Sol Oil Co., L.C. | Crane, TX 79731 | Oil Operator | Mar 2025 |
| 34 | Southland Royalty Co.-Midland | Midland, TX 79702 | Oil & Gas Operator | Mar 1996 |
| 35 | Southland Royalty Company | Houston, TX 77210 | Oil & Gas Operator | Sep 2011 |
| 36 | Southwest Royalties Inc | Midland, TX 79710 | Oil & Gas Operator | Mar 2025 |
| 37 | Southwest-Operating | Penwell, TX 79776 | Oil & Gas Operator | Mar 2025 |
| 38 | Southwestern Energy Prod Co | Houston, TX 77032 | Oil & Gas Operator | Jun 2015 |
| 39 | Space Production Inc. | Monahans, TX 79756 | Oil & Gas Operator | Mar 2025 |
| 40 | Special Energy Corporation | Stillwater, OK 74076 | Oil & Gas Operator | Mar 2025 |
| 41 | Stanolind Operating Corp. | Midland, TX 79701 | Oil & Gas Operator | Apr 2008 |
| 42 | Stanolind Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2021 |
| 43 | Stephens, Autry C. | Midland, TX 79701 | Oil & Gas Operator | Mar 2023 |
| 44 | Stephens, Mickie L. | MC Camey, TX 79752 | Oil & Gas Operator | Aug 1998 |
| 45 | Stevens & Tull, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 2000 |
| 46 | Stout Energy Inc. | Midland, TX 79708 | Oil & Gas Operator | Mar 2025 |
| 47 | Strand Energy, L.C. | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 48 | Stronghold Energy II Oper, LLC | Midland, TX 79702 | Oil & Gas Operator | Aug 2022 |
| 49 | Summit Exploration, L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2008 |
| 50 | Summit Petroleum LLC | Midland, TX 79705 | Oil & Gas Operator | Mar 2025 |
| 51 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | Mar 2025 |
| 52 | Swanson, Tom | Electra, TX 76360 | Oil & Gas Operator | Oct 2004 |
| 53 | Swartz Oil Company | San Angelo, TX 76906 | Oil & Gas Operator | Mar 2025 |