| 1 | S & C Construction, Inc. | Whitefish, MT 59937 | Oil & Gas Operator | Mar 2025 |
| 2 | S & H Oil Company | Vernon, TX 76384 | Oil & Gas Operator | Sep 1999 |
| 3 | S & H Resources | Abilene, TX 79605 | Oil & Gas Operator | Mar 2025 |
| 4 | S & H Wells | Iowa Park, TX 76367 | Oil Operator | Mar 2025 |
| 5 | S & J Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2015 |
| 6 | S & JB, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Jul 2010 |
| 7 | S & L Oil Field Services | Carrizo SPGS, TX 78834 | Oil & Gas Operator | Jan 1999 |
| 8 | S & M Drilling, LLC | Wichita Falls, TX 76308 | Oil Operator | Sep 2023 |
| 9 | S & M Royalty | Andrews, TX 79714 | Oil & Gas Operator | Jan 1997 |
| 10 | S & N Energies, Inc. | Amarillo, TX 79109 | Oil & Gas Operator | Jun 2002 |
| 11 | S & P Energy | Benbrook, TX 76126 | Oil & Gas Operator | Oct 1994 |
| 12 | S & P Energy, Inc. | Benbrook, TX 76126 | Oil & Gas Operator | Aug 2003 |
| 13 | S & R Oil Company | Electra, TX 76360 | Oil & Gas Operator | Apr 1993 |
| 14 | S & R Operating | Merkel, TX 79536 | Oil & Gas Operator | Mar 2008 |
| 15 | S & S & H Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Jul 2004 |
| 16 | S & S Energy | Englewood, CO 80112 | Oil & Gas Operator | Mar 2015 |
| 17 | S & S Oil Company | Electra, TX 76360 | Oil & Gas Operator | Mar 2025 |
| 18 | S & S Operating | Dumas, TX 79029 | Oil Operator | Mar 2025 |
| 19 | S & S Operating Company, Inc. | Winnie, TX 77665 | Oil & Gas Operator | Mar 2025 |
| 20 | S & S Well Service, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Aug 1998 |
| 21 | S & T Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Jun 2001 |
| 22 | S & V Operating | Zephyr, TX 76890 | Oil & Gas Operator | Mar 2025 |
| 23 | S & W Oil & Gas, LLC | Pampa, TX 79066 | Oil & Gas Operator | Mar 2025 |
| 24 | S & Y Production Co. | Liberty, TX 77575 | Oil & Gas Operator | Jul 1996 |
| 25 | S And B Gauging Services, LLC | Onalaska, TX 77360 | Oil Operator | Mar 2025 |
| 26 | S M K Energy Corporation | Corpus Chrsti, TX 78475 | Oil & Gas Operator | Mar 2025 |
| 27 | S N D Energy Company, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Mar 2025 |
| 28 | S&G Oil LLC | Wichita Falls, TX 76309 | Oil & Gas Operator | Mar 2025 |
| 29 | S&JB, LLC | Rockdale, TX 76567 | Oil & Gas Operator | Mar 2025 |
| 30 | S&S Heidrich | Iowa Park, TX 76367 | Oil & Gas Operator | Dec 2017 |
| 31 | S. A. Oil Account | Borger, TX 79008 | Oil & Gas Operator | Dec 1997 |
| 32 | S. M. A. Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jan 1997 |
| 33 | S. P. Penntex Energy, L.P. | Abilene, TX 79605 | Oil & Gas Operator | May 2003 |
| 34 | S. P. Y. Oil Co. | Batson, TX 77519 | Oil & Gas Operator | Mar 2002 |
| 35 | S.B. Street Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 36 | S.E.D.I. | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2015 |
| 37 | S.O.C. Investors, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2025 |
| 38 | S.U.E. Company | Abilene, TX 79604 | Oil Operator | Jan 1998 |
| 39 | S2 Energy, LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2023 |
| 40 | S2 Oil, LLC | San Angelo, TX 76901 | Oil & Gas Operator | Mar 2025 |
| 41 | Saba Energy Of Texas Inc | Houston, TX 77042 | Oil & Gas Operator | Jul 2007 |
| 42 | Sabalo Exploration Operating,LLC | Corpus Chrsti, TX 78404 | Oil & Gas Operator | Jan 2021 |
| 43 | Sabalo II Operating, LLC | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Mar 2025 |
| 44 | Sabalo Operating, LLC | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Jun 2021 |
| 45 | Sabco Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2011 |
| 46 | Sabco Operating Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Jun 2018 |
| 47 | Saber Oil & Gas Ventures, LLC | Midland, TX 79701 | Oil & Gas Operator | Mar 2025 |
| 48 | Saber Resources, LLC | Midland, TX 79701 | Oil & Gas Operator | Aug 2008 |
| 49 | Sabinal Energy Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Mar 2025 |
| 50 | Sabinal Resources, Inc. | Kingwood, TX 77339 | Oil & Gas Operator | Mar 2025 |
| 51 | Sabine Oil & Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 52 | Sabine Oil & Gas LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2017 |
| 53 | Sabine Pipe & Supply Co. | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2004 |
| 54 | Sabine Pipe, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2025 |
| 55 | Sabine Syndicate No. 1 | Longview, TX 75606 | Oil & Gas Operator | Mar 2025 |
| 56 | Sabio Oil & Gas Inc. | Dallas, TX 75206 | Oil & Gas Operator | Jan 1998 |
| 57 | Sable Energy Corp. | Houston, TX 77057 | Oil & Gas Operator | Nov 1999 |
| 58 | Sable Permian Resources Land,LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2019 |
| 59 | Sable Permian Resources, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2021 |
| 60 | Sabre Oil And Gas Corp. | Houston, TX 77063 | Oil & Gas Operator | Mar 2025 |
| 61 | Sabre Oil Company, LLC | Boca Raton, FL 33487 | Oil & Gas Operator | Jun 2022 |
| 62 | Sabre Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2025 |
| 63 | Sackerol Enterprises, Inc. | Plattsburgh, NY 12901 | Oil & Gas Operator | Mar 2025 |
| 64 | Saddle Creek Energy Development | Dallas, TX 75251 | Oil & Gas Operator | Nov 2008 |
| 65 | Saddle Creek Oil, LLC | Albany, TX 76430 | Oil Operator | Mar 2025 |
| 66 | Saddle Rim Energy (Texas), LLC | Greenwood VLG, CO 80111 | Oil Operator | Mar 2025 |
| 67 | Saddleback Exploration, LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Apr 2024 |
| 68 | Safari Oil Corporation | Gainesville, TX 76240 | Oil & Gas Operator | Sep 2003 |
| 69 | Safari Production Company, Inc. | McAllen, TX 78501 | Oil & Gas Operator | Mar 2025 |
| 70 | Safari Resources, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 71 | Safemark Oil & Gas, LLC | McKinney, TX 75072 | Oil & Gas Operator | Mar 2025 |
| 72 | Saga Pet. LTD Liability Co Of Co | Midland, TX 79701 | Oil & Gas Operator | Apr 2004 |
| 73 | Saga Petroleum Corp. | Midland, TX 79701 | Oil & Gas Operator | Mar 2008 |
| 74 | Saga Petroleum LLC Of Colorado | Norman, OK 73072 | Oil & Gas Operator | Mar 2025 |
| 75 | Sage Energy Company | San Antonio, TX 78215 | Oil & Gas Operator | Mar 2025 |
| 76 | Sage Natural Resources LLC | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2025 |
| 77 | Sage Oil And Gas, LLC | Graham, TX 76450 | Gas Operator | Mar 2025 |
| 78 | Sage Petroleum Co. | Borger, TX 79007 | Oil & Gas Operator | Dec 2002 |
| 79 | Sagebrush Oilandgas Company,LLC | Midland, TX 79701 | Oil & Gas Operator | Mar 2010 |
| 80 | Sagebrush Operating LLC | Denver, CO 80203 | Oil & Gas Operator | Aug 2024 |
| 81 | Saguaro Petroleum, LLC | Midland, TX 79705 | Oil & Gas Operator | Mar 2025 |
| 82 | Sahara Operating Company | Midland, TX 79704 | Oil & Gas Operator | Mar 2025 |
| 83 | Salas-Apache Oil LLC | San Antonio, TX 78227 | Oil Operator | Mar 2025 |
| 84 | Salida Exploration, LLC | Abilene, TX 79603 | Oil & Gas Operator | Mar 2025 |
| 85 | Salient Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 86 | Saling Oil Co. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2002 |
| 87 | Salmon, Raymond Jr Estate | Nocona, TX 76255 | Oil Operator | Mar 2025 |
| 88 | Salmon, Raymond, Jr. | Nocona, TX 76255 | Oil & Gas Operator | Sep 2017 |
| 89 | Salona, LLC | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 90 | Salt Creek Oil Corporation | Irving, TX 75016 | Oil & Gas Operator | Dec 1993 |
| 91 | Salt Creek Production, Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Mar 2025 |
| 92 | Salt Creek Resources, LLC | Caney, KS 67333 | Oil Operator | Oct 2019 |
| 93 | Salt Of The Earth Energy, LLC | Montgomery, TX 77356 | Oil & Gas Operator | Mar 2025 |
| 94 | Salty Lime Energy, LLC | Ovalo, TX 79541 | Oil Operator | Mar 2025 |
| 95 | Salvador Oil, LLC | Dallas, TX 75201 | Oil & Gas Operator | Mar 2025 |
| 96 | Samco | Whitesboro, TX 76273 | Oil & Gas Operator | Aug 2013 |
| 97 | Samco Oil & Gas Co. | Granbury, TX 76048 | Gas Operator | Feb 2002 |
| 98 | Samedan Oil Corp. -Offshore Div. | Houston, TX 77067 | Oil & Gas Operator | Dec 2002 |
| 99 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
| 100 | Samis Oil Company, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Sep 2000 |