| 27101 | Staghorn Petroleum II LLC | Tulsa, OK 74103-3500 | Oil & Gas Operator | Mar 2026 |
| 27102 | Staghorn Petroleum LLC | Tulsa, OK 74103-3500 | Oil & Gas Operator | Feb 2026 |
| 27103 | Staghorn Resources, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |
| 27104 | Stahl Petroleum Co. | Amarillo, TX 79118 | Oil & Gas Operator | Aug 2003 |
| 27105 | Stal Oil Production, L.L.C. | Argyle, TX 76226 | Oil Operator | Jun 2026 |
| 27106 | Stalcup Oil Comp | | Oil Operator | Dec 1992 |
| 27107 | Stalcup Oil Company | | Oil Operator | Oct 2009 |
| 27108 | Staley Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2000 |
| 27109 | Staley Operating Co. | Midland, TX 79702 | Oil & Gas Operator | Jan 2022 |
| 27110 | Staley, Jack C. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2000 |
| 27111 | Stalica, Donald E. | Pavilion, NY 14525 | Gas Operator | Dec 2024 |
| 27112 | Stalking Horse Energy, Limited Liability Company | Houston, TX 77062 | Oil & Gas Operator | Jun 2026 |
| 27113 | Stalking Horse Energy, LLC | Denver, CO 80246 | Oil Operator | Feb 2026 |
| 27114 | Stallings Eugene | | Oil Operator | Jul 1994 |
| 27115 | Stallion Energy LLC | Houston, TX 77090 | Oil & Gas Operator | Oct 2009 |
| 27116 | Stallion Energy, Inc. | Houston, TX 77060 | Oil & Gas Operator | Oct 2017 |
| 27117 | Stallion Oil Company | Lafayette, LA 70505 | Oil & Gas Operator | Jun 2004 |
| 27118 | Stallion Oil Corporation | | Oil & Gas Operator | Nov 1987 |
| 27119 | Stallion Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2026 |
| 27120 | Stalnaker Energy Corporation | | Oil & Gas Operator | Dec 2021 |
| 27121 | Stalnaker Oil Company | Maud, OK 74854-0295 | Oil Operator | May 2017 |
| 27122 | Stalnaker, William K | | Oil & Gas Operator | Dec 2008 |
| 27123 | Stalwart Energy Co | Tulsa, OK 74103-3518 | Oil & Gas Operator | Apr 2014 |
| 27124 | Stamic Oil LLC | Duncan, OK 73534-1898 | Oil & Gas Operator | Oct 2021 |
| 27125 | Stampede Energy Corp. | Canada, 00100 | Oil & Gas Operator | Mar 2000 |
| 27126 | Stamper Operating Co., Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Jun 2026 |
| 27127 | Stanco Petroleum Inc | Kimball, NE 69145 | Oil & Gas Operator | Jul 1999 |
| 27128 | Standard Alaska Production Company | | Oil & Gas Operator | Dec 1987 |
| 27129 | Standard Oil Co Of Calif | | Oil & Gas Operator | Dec 1983 |
| 27130 | Standard Oil Co Of WV | Walton, WV 25286 | Oil & Gas Operator | Dec 2024 |
| 27131 | Standard Oil Company, Inc. | Parkesburg, WV 26103 | Oil & Gas Operator | Mar 2022 |
| 27132 | Standard Oil Of Kentucky, Inc | | Oil Operator | Dec 2024 |
| 27133 | Standard Operating Company | Wichita, KS 67205 | Oil & Gas Operator | Dec 2019 |
| 27134 | Standard Operating Company, LLC | | Oil & Gas Operator | May 2022 |
| 27135 | Standard Operating Inc | | Oil Operator | Jun 1986 |
| 27136 | Standard Production | | Oil Operator | Oct 1997 |
| 27137 | Standard Resources Corp. | Houston, TX 77063 | Oil & Gas Operator | Jun 2026 |
| 27138 | Standard Silver Corp | Richardson, TX 750801946 | Gas Operator | Aug 2024 |
| 27139 | Standby Farms | Louisville, OH 44641 | Oil & Gas Operator | Dec 2025 |
| 27140 | Standing Bear Petroleum Inc. | | Oil & Gas Operator | Dec 2005 |
| 27141 | Standley* Robert K Dba Otis Energy | | Oil Operator | Jan 2023 |
| 27142 | Stanlee Oil LLC | | Oil Operator | Feb 2026 |
| 27143 | Stanoco Oil Co | Central City, KY 42330 | Oil & Gas Operator | Dec 2024 |
| 27144 | Stanolind Operating Corp. | Midland, TX 79701 | Oil & Gas Operator | Apr 2008 |
| 27145 | Stanolind Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2021 |
| 27146 | Stanolind Operating LLC Dba Stanolind NM LLC | Midland, TX 79701 | Oil & Gas Operator | Dec 2014 |
| 27147 | Stanolind Permian LLC | Midland, TX 79710 | Oil & Gas Operator | Jun 2026 |
| 27148 | Stanolind Production LLC | Midland, TX 79702 | Oil & Gas Operator | Dec 2020 |
| 27149 | Stanolind SJ LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2018 |
| 27150 | Stanotex, LLC | Katy, TX 77494 | Oil & Gas Operator | Jun 2026 |
| 27151 | Stanton Leo F & Leo H | Wynona, OK 74084 | Oil & Gas Operator | Jun 1999 |
| 27152 | Stanton Mineral Development Inc | Austin, TX 78759 | Oil & Gas Operator | Jun 2026 |
| 27153 | Stanton, Joni R | | Oil Operator | Mar 2026 |
| 27154 | Staples, James W. | Tuleta, TX 78162 | Oil & Gas Operator | Sep 2014 |
| 27155 | Staples, James W. Prod. Co. | Tuleta, TX 78162 | Oil & Gas Operator | Jun 2026 |
| 27156 | Staples, Tommy Oil Co. | Pettus, TX 78146 | Oil & Gas Operator | Mar 2008 |
| 27157 | Star Acquisition VII, LLC | Littleton, CO 801249743 | Oil & Gas Operator | Jul 2007 |
| 27158 | Star Energy Inc | Dayton, PA 16222-4325 | Oil & Gas Operator | Dec 2025 |
| 27159 | Star Expl Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1988 |
| 27160 | Star Falcon Oil Co. | | Oil Operator | Feb 1986 |
| 27161 | Star Of Texas Energy SRVS, Inc. | Austin, TX 78702 | Oil & Gas Operator | Jun 2026 |
| 27162 | Star Oil & Gas | Ben Bolt, TX 78342 | Oil & Gas Operator | Jun 2026 |
| 27163 | Star Oil & Gas, Inc. | | Oil & Gas Operator | Sep 1995 |
| 27164 | Star Oil And Gas LTD | Racine, OH 45771 | Oil & Gas Operator | Dec 2024 |
| 27165 | Star Oil Company | Wichita, KS 67230 | Oil & Gas Operator | Mar 2025 |
| 27166 | Star Oil Operating Company, LLC | Bowling Green, KY 42101 | Oil & Gas Operator | Apr 2026 |
| 27167 | Star One Energy, Inc. | Fort Worth, TX 76163 | Oil & Gas Operator | May 2012 |
| 27168 | Star Production, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Jun 2026 |
| 27169 | Star Resources LLC | Englewood, CO 80155-5185 | Oil & Gas Operator | Dec 2013 |
| 27170 | Star Resources, LTD. | Wichita, KS 67202 | Oil Operator | Nov 2002 |
| 27171 | Star-Jet Co. | Gainesville, TX 76240 | Oil Operator | Jun 2026 |
| 27172 | Starbrite Energy LLC | Enid, OK 73702-0549 | Oil & Gas Operator | Oct 2018 |
| 27173 | Starco Exploration, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Jun 2026 |
| 27174 | Stardust Leasing, Inc. | Richmond, TX 77469 | Oil & Gas Operator | Jul 1999 |
| 27175 | Stargas Co | Tulsa, OK 74136-5407 | Oil & Gas Operator | Aug 2013 |
| 27176 | Stark Oil Properties | Asher, OK 74826 | Oil & Gas Operator | Jan 1997 |
| 27177 | Stark Petroleum | Tuleta, TX 78162 | Oil & Gas Operator | Jun 2026 |
| 27178 | Starkey Oilfield Service, Inc. | Sweet Home, TX 77987 | Oil & Gas Operator | Aug 2004 |
| 27179 | Starks Leslie | Wetumka, OK 74883-0003 | Oil & Gas Operator | Oct 1995 |
| 27180 | Starlight Resources LLC | | Oil & Gas Operator | Apr 2006 |
| 27181 | Starlight Ridge | Whitesboro, TX 76273 | Oil & Gas Operator | Jun 2026 |
| 27182 | Starr Operating Company | Austin, TX 78759 | Oil & Gas Operator | Jun 2026 |
| 27183 | Starr Operating, LLC | San Antonio, TX 78209 | Oil & Gas Operator | Jun 2026 |
| 27184 | Starrak Operating Company, Inc. | Midland, TX 79706 | Oil & Gas Operator | Jun 1999 |
| 27185 | Startap, Inc. | Conroe, TX 77305 | Oil Operator | Jun 2026 |
| 27186 | Startex Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Jun 2026 |
| 27187 | Stasney Well Service, LLC | Albany, TX 76430 | Oil & Gas Operator | Jun 2026 |
| 27188 | Stasney, H. R. & Sons, LTD. | Albany, TX 76430 | Oil & Gas Operator | Jun 2026 |
| 27189 | State Energy & Investment Inc. | | Oil & Gas Operator | Mar 1990 |
| 27190 | State Lands Commission | | Oil & Gas Operator | Dec 2025 |
| 27191 | State Line Exploration, LLC | | Oil & Gas Operator | Dec 2024 |
| 27192 | State Line Vacuum Services, LLC | | Oil Operator | Mar 2021 |
| 27193 | State Oil Company | | Oil & Gas Operator | Mar 2006 |
| 27194 | States Exploration Inc | | Oil Operator | Jul 1985 |
| 27195 | Stateside Energy Group LLC | North Miami Beach, FL 33435 | Oil & Gas Operator | Dec 2024 |
| 27196 | Statex Operating, LLC | Dallas, TX 75229 | Oil & Gas Operator | Mar 2007 |
| 27197 | Statex Petroleum Inc | Dallas, TX 75229 | Oil & Gas Operator | Dec 2000 |
| 27198 | Statia Enterprises, Inc | Irving, TX 75014 | Oil & Gas Operator | Jun 2026 |
| 27199 | Statoil Exploration (Us) Inc. | | Oil & Gas Operator | Jul 1997 |
| 27200 | Statoil Oil & Gas LP | Austin, TX 78730 | Oil & Gas Operator | Oct 2018 |