| 27201 | Standard Operating Inc | | Oil Operator | Jun 1986 |
| 27202 | Standard Production | | Oil Operator | Oct 1997 |
| 27203 | Standard Resources Corp. | Houston, TX 77063 | Oil & Gas Operator | Apr 2026 |
| 27204 | Standard Silver Corp | Richardson, TX 750801946 | Gas Operator | Aug 2024 |
| 27205 | Standby Farms | Louisville, OH 44641 | Oil & Gas Operator | Dec 2025 |
| 27206 | Standing Bear Petroleum Inc. | | Oil & Gas Operator | Dec 2005 |
| 27207 | Standlee, Jacci L | Ellinwood, KS 67526 | Oil Operator | Nov 2025 |
| 27208 | Standley* Robert K Dba Otis Energy | | Oil Operator | Jan 2023 |
| 27209 | Stanlee Oil LLC | | Oil Operator | Dec 2025 |
| 27210 | Stanoco Oil Co | Central City, KY 42330 | Oil & Gas Operator | Dec 2024 |
| 27211 | Stanolind Operating Corp. | Midland, TX 79701 | Oil & Gas Operator | Apr 2008 |
| 27212 | Stanolind Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2021 |
| 27213 | Stanolind Operating LLC Dba Stanolind NM LLC | Midland, TX 79701 | Oil & Gas Operator | Dec 2014 |
| 27214 | Stanolind Permian LLC | Midland, TX 79705 | Oil & Gas Operator | Apr 2026 |
| 27215 | Stanolind Production LLC | Midland, TX 79702 | Oil & Gas Operator | Dec 2020 |
| 27216 | Stanolind SJ LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2018 |
| 27217 | Stanotex, LLC | Katy, TX 77494 | Oil & Gas Operator | Apr 2026 |
| 27218 | Stanton Leo F & Leo H | Wynona, OK 74084 | Oil & Gas Operator | Jun 1999 |
| 27219 | Stanton Mineral Development Inc | Austin, TX 78759 | Oil & Gas Operator | Apr 2026 |
| 27220 | Stanton, Joni R | | Oil Operator | Dec 2025 |
| 27221 | Staples, James W. | Tuleta, TX 78162 | Oil & Gas Operator | Sep 2014 |
| 27222 | Staples, James W. Prod. Co. | Tuleta, TX 78162 | Oil & Gas Operator | Apr 2026 |
| 27223 | Staples, Tommy Oil Co. | Pettus, TX 78146 | Oil & Gas Operator | Mar 2008 |
| 27224 | Star Acquisition VII, LLC | Littleton, CO 801249743 | Oil & Gas Operator | Jul 2007 |
| 27225 | Star Energy Inc | Dayton, PA 16222-4325 | Oil & Gas Operator | Dec 2025 |
| 27226 | Star Expl Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1988 |
| 27227 | Star Falcon Oil Co. | | Oil Operator | Feb 1986 |
| 27228 | Star Of Texas Energy SRVS, Inc. | Austin, TX 78702 | Oil & Gas Operator | Apr 2026 |
| 27229 | Star Oil & Gas | Ben Bolt, TX 78342 | Oil & Gas Operator | Apr 2026 |
| 27230 | Star Oil & Gas, Inc. | | Oil & Gas Operator | Sep 1995 |
| 27231 | Star Oil And Gas LTD | Racine, OH 45771 | Oil & Gas Operator | Dec 2023 |
| 27232 | Star Oil Company | Wichita, KS 67230 | Oil & Gas Operator | Mar 2025 |
| 27233 | Star Oil Operating Company, LLC | Bowling Green, KY 42101 | Oil & Gas Operator | Feb 2026 |
| 27234 | Star One Energy, Inc. | Fort Worth, TX 76163 | Oil & Gas Operator | May 2012 |
| 27235 | Star Production, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Apr 2026 |
| 27236 | Star Resources LLC | Englewood, CO 80155-5185 | Oil & Gas Operator | Dec 2013 |
| 27237 | Star Resources, LTD. | Wichita, KS 67202 | Oil Operator | Nov 2002 |
| 27238 | Star-Jet Co. | Gainesville, TX 76240 | Oil Operator | Apr 2026 |
| 27239 | Starbrite Energy LLC | Enid, OK 73702-0549 | Oil & Gas Operator | Oct 2018 |
| 27240 | Starco Exploration, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Apr 2026 |
| 27241 | Stardust Leasing, Inc. | Richmond, TX 77469 | Oil & Gas Operator | Jul 1999 |
| 27242 | Stargas Co | Tulsa, OK 74136-5407 | Oil & Gas Operator | Aug 2013 |
| 27243 | Stark Oil Properties | Asher, OK 74826 | Oil & Gas Operator | Jan 1997 |
| 27244 | Stark Petroleum | Tuleta, TX 78162 | Oil & Gas Operator | Apr 2026 |
| 27245 | Starkey Oilfield Service, Inc. | Sweet Home, TX 77987 | Oil & Gas Operator | Aug 2004 |
| 27246 | Starks Leslie | Wetumka, OK 74883-0003 | Oil & Gas Operator | Oct 1995 |
| 27247 | Starlight Resources LLC | | Oil & Gas Operator | Apr 2006 |
| 27248 | Starlight Ridge | Whitesboro, TX 76273 | Oil & Gas Operator | Apr 2026 |
| 27249 | Starr Operating Company | Austin, TX 78759 | Oil & Gas Operator | Apr 2026 |
| 27250 | Starr Operating, LLC | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2026 |
| 27251 | Starrak Operating Company, Inc. | Midland, TX 79706 | Oil & Gas Operator | Jun 1999 |
| 27252 | Startap, Inc. | Conroe, TX 77305 | Oil Operator | Apr 2026 |
| 27253 | Startex Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 2026 |
| 27254 | Stasney Well Service, LLC | Albany, TX 76430 | Oil & Gas Operator | Apr 2026 |
| 27255 | Stasney, H. R. & Sons, LTD. | Albany, TX 76430 | Oil & Gas Operator | Apr 2026 |
| 27256 | State Energy & Investment Inc. | | Oil & Gas Operator | Mar 1990 |
| 27257 | State Lands Commission | | Oil & Gas Operator | Dec 2025 |
| 27258 | State Line Exploration, LLC | | Oil & Gas Operator | Dec 2024 |
| 27259 | State Line Vacuum Services, LLC | | Oil Operator | Mar 2021 |
| 27260 | State Oil Company | | Oil & Gas Operator | Mar 2006 |
| 27261 | States Exploration Inc | | Oil Operator | Jul 1985 |
| 27262 | Stateside Energy Group LLC | North Miami Beach, FL 33435 | Oil & Gas Operator | Dec 2024 |
| 27263 | Statex Operating, LLC | Dallas, TX 75229 | Oil & Gas Operator | Mar 2007 |
| 27264 | Statex Petroleum Inc | Dallas, TX 75229 | Oil & Gas Operator | Dec 2000 |
| 27265 | Statia Enterprises, Inc | Irving, TX 75014 | Oil & Gas Operator | Apr 2026 |
| 27266 | Statoil Exploration (Us) Inc. | | Oil & Gas Operator | Jul 1997 |
| 27267 | Statoil Oil & Gas LP | Austin, TX 78730 | Oil & Gas Operator | Oct 2018 |
| 27268 | Statoil Texas Onshore Prop LLC | Austin, TX 78730 | Oil & Gas Operator | Dec 2018 |
| 27269 | Statoil USA Onshore Properties Inc | Austin, TX 78730 | Oil & Gas Operator | Jun 2018 |
| 27270 | Staton Petroleum Inc | | Oil & Gas Operator | Dec 1994 |
| 27271 | Status Oil Well, Inc. | Charlotte, NC 28270 | Oil & Gas Operator | Dec 2011 |
| 27272 | Staub, Larry | Richardson, TX 75080 | Oil & Gas Operator | Aug 2003 |
| 27273 | Staub, Larry, Inc. | Azle, TX 76020 | Oil & Gas Operator | Apr 2026 |
| 27274 | Stauffer Oil & G | | Oil Operator | Jun 1987 |
| 27275 | Stauros Operating Company | Edmond, OK 73083-2707 | Oil & Gas Operator | Mar 2001 |
| 27276 | Stauter, Richard J. | Greeley, CO 80634 | Gas Operator | Apr 1996 |
| 27277 | STB Energy Inc. | Tulsa, OK 74105 | Oil & Gas Operator | Jul 2008 |
| 27278 | STD Steel | Latrobe, PA 15650-0071 | Oil & Gas Operator | Dec 2002 |
| 27279 | Steadfast Oil & Gas, LLC | Midland, TX 79707 | Oil & Gas Operator | Oct 2022 |
| 27280 | Stealth Energy Inc | Billings, MT 59101 | Oil Operator | Dec 2011 |
| 27281 | Stealth Energy USA Inc | Billings, MT 59104 | Oil Operator | Dec 2017 |
| 27282 | Stealth Onsite Solutions LLC | Pasadena, TX 77505 | Oil Operator | Apr 2026 |
| 27283 | Stealth, Inc. | Cross Plains, TX 76443 | Gas Operator | Mar 1997 |
| 27284 | Steamboat Oil And Gas LLC | Gillette, WY 82717 | Oil Operator | Feb 2026 |
| 27285 | Stearns | Crossroads, NM 88114 | Oil & Gas Operator | Dec 2025 |
| 27286 | Stearns Oil Company LLC | Willison, ND 58801 | Oil & Gas Operator | Feb 2026 |
| 27287 | Stearns Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Oct 1993 |
| 27288 | Steaua Romana (Us) Inc. | | Oil & Gas Operator | Apr 1987 |
| 27289 | Stebell, Jean M. | Westfield, NY 14787 | Gas Operator | Dec 2024 |
| 27290 | Stebeth Gas Production, Inc. | Beaumont, KS 67012 | Oil Operator | May 1996 |
| 27291 | Steckel Oil, LLC | Russell, KS 67665 | Oil Operator | Dec 2025 |
| 27292 | Stecklein Oil Co | | Oil Operator | Jul 1993 |
| 27293 | Stecklein Oil Company, A General Partnership | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 27294 | Stedman Energy Inc | Chautauqua, NY 14722 | Oil & Gas Operator | Dec 2025 |
| 27295 | Stedman Oil & Gas LLC | Hobart, OK 73651-1624 | Oil & Gas Operator | Mar 2015 |
| 27296 | Steele Jr Guy M Test Trust | Dallas, TX 75230 | Gas Operator | Mar 2018 |
| 27297 | Steele VIctor Patterson | Wewoka, OK 74884-0560 | Oil & Gas Operator | Jan 2001 |
| 27298 | Steele, Mark E. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 27299 | Steffen Resource Development, LLC | Hutchinson, KS 67502 | Oil & Gas Operator | Dec 2025 |
| 27300 | Stehle Oil Company | | Oil Operator | Jun 2021 |