| 27301 | Startap, Inc. | Conroe, TX 77305 | Oil Operator | Sep 2026 |
| 27302 | Startex Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Sep 2026 |
| 27303 | Stasney Well Service, LLC | Albany, TX 76430 | Oil & Gas Operator | Sep 2026 |
| 27304 | Stasney, H. R. & Sons, LTD. | Albany, TX 76430 | Oil & Gas Operator | Sep 2026 |
| 27305 | State Energy & Investment Inc. | | Oil & Gas Operator | Mar 1990 |
| 27306 | State Lands Commission | | Oil & Gas Operator | Dec 2025 |
| 27307 | State Line Exploration, LLC | | Oil & Gas Operator | Dec 2024 |
| 27308 | State Line Vacuum Services, LLC | | Oil Operator | Mar 2021 |
| 27309 | State Oil Company | | Oil & Gas Operator | Mar 2006 |
| 27310 | States Exploration Inc | | Oil Operator | Jul 1985 |
| 27311 | Stateside Energy Group LLC | North Miami Beach, FL 33435 | Oil & Gas Operator | Dec 2025 |
| 27312 | Stateside Energy LLC | Gotebo, OK 73041 | Oil & Gas Operator | May 2026 |
| 27313 | Statex Operating, LLC | Dallas, TX 75229 | Oil & Gas Operator | Mar 2007 |
| 27314 | Statex Petroleum Inc | Dallas, TX 75229 | Oil & Gas Operator | Dec 2000 |
| 27315 | Statia Enterprises, Inc | Irving, TX 75014 | Oil & Gas Operator | Sep 2026 |
| 27316 | Statoil Exploration (Us) Inc. | | Oil & Gas Operator | Jul 1997 |
| 27317 | Statoil Oil & Gas LP | Austin, TX 78730 | Oil & Gas Operator | Apr 2021 |
| 27318 | Statoil Texas Onshore Prop LLC | Austin, TX 78730 | Oil & Gas Operator | Dec 2018 |
| 27319 | Statoil USA Onshore Properties Inc | Austin, TX 78730 | Oil & Gas Operator | Jun 2018 |
| 27320 | Staton Petroleum Inc | | Oil & Gas Operator | Dec 1994 |
| 27321 | Status Oil Well, Inc. | Charlotte, NC 28270 | Oil & Gas Operator | Dec 2011 |
| 27322 | Staub, Larry | Richardson, TX 75080 | Oil & Gas Operator | Aug 2003 |
| 27323 | Staub, Larry, Inc. | Azle, TX 76020 | Oil & Gas Operator | Sep 2026 |
| 27324 | Stauffer Oil & G | | Oil Operator | Jun 1987 |
| 27325 | Stauros Operating Company | Edmond, OK 73083-2707 | Oil & Gas Operator | Mar 2001 |
| 27326 | Stauter, Richard J. | Greeley, CO 80634 | Gas Operator | Apr 1996 |
| 27327 | STB Energy Inc. | Tulsa, OK 74105 | Oil & Gas Operator | Jul 2008 |
| 27328 | STD Steel | Latrobe, PA 15650-0071 | Oil & Gas Operator | Dec 2002 |
| 27329 | Steadfast Oil & Gas, LLC | Midland, TX 79707 | Oil & Gas Operator | Oct 2022 |
| 27330 | Stealth Energy Inc | Billings, MT 59101 | Oil Operator | Dec 2011 |
| 27331 | Stealth Energy USA Inc | Billings, MT 59104 | Oil Operator | Dec 2017 |
| 27332 | Stealth Onsite Solutions LLC | Pasadena, TX 77505 | Oil Operator | Sep 2026 |
| 27333 | Stealth, Inc. | Cross Plains, TX 76443 | Gas Operator | Mar 1997 |
| 27334 | Steamboat Oil And Gas LLC | Gillette, WY 82717 | Oil Operator | Jun 2026 |
| 27335 | Stearns | Crossroads, NM 88114 | Oil & Gas Operator | Dec 2025 |
| 27336 | Stearns Oil Company LLC | Willison, ND 58801 | Oil & Gas Operator | Jun 2026 |
| 27337 | Stearns Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Oct 1993 |
| 27338 | Steaua Romana (Us) Inc. | | Oil & Gas Operator | Apr 1987 |
| 27339 | Stebell, Jean M. | Westfield, NY 14787 | Gas Operator | Dec 2025 |
| 27340 | Stebeth Gas Production, Inc. | Beaumont, KS 67012 | Oil Operator | May 1996 |
| 27341 | Steckel Oil, LLC | Russell, KS 67665 | Oil Operator | Apr 2026 |
| 27342 | Stecklein Oil Co | | Oil Operator | Jul 1993 |
| 27343 | Stecklein Oil Company, A General Partnership | Hays, KS 67601 | Oil Operator | Mar 2026 |
| 27344 | Stedman Energy Inc | Chautauqua, NY 14722 | Oil & Gas Operator | Dec 2025 |
| 27345 | Stedman Oil & Gas LLC | Hobart, OK 73651-1624 | Oil & Gas Operator | Mar 2015 |
| 27346 | Steele Jr Guy M Test Trust | Dallas, TX 75230 | Gas Operator | Mar 2018 |
| 27347 | Steele VIctor Patterson | Wewoka, OK 74884-0560 | Oil & Gas Operator | Jan 2001 |
| 27348 | Steele, Mark E. | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 27349 | Steffen Resource Development, LLC | Hutchinson, KS 67502 | Oil & Gas Operator | Apr 2026 |
| 27350 | Stehle Oil Company | | Oil Operator | Jun 2021 |
| 27351 | Steimle, Peter C. | Auburn, NY 13021 | Gas Operator | Dec 2025 |
| 27352 | Steinberger Bros., Inc. | Independence, KS 67301 | Oil Operator | Dec 2009 |
| 27353 | Steinberger Oil Company | Independence, KS 67301 | Oil & Gas Operator | May 2002 |
| 27354 | Steinberger, D. | Windthorst, TX 76389 | Oil & Gas Operator | Oct 1995 |
| 27355 | Steinberger, Gerald | Windthorst, TX 76389 | Oil & Gas Operator | Sep 2007 |
| 27356 | Steindorf, Bert Oil & Gas Co. | Floresville, TX 78114 | Oil & Gas Operator | Sep 2026 |
| 27357 | Steiner Oil And Gas | Lincolnville, KS 66858 | Oil Operator | Jan 1999 |
| 27358 | Steinforth, Loren | Yates Center, KS 66783 | Oil Operator | Sep 2014 |
| 27359 | Steinle Oil | | Oil Operator | Aug 2021 |
| 27360 | Steinle, Martin D. | Bunker Hill, KS 67626 | Oil Operator | Mar 2026 |
| 27361 | Steinman, Frank C. | Electra, TX 76360 | Oil & Gas Operator | Sep 2026 |
| 27362 | Steinwachs SR, James M | Robards, KY 42452 | Oil Operator | Dec 2023 |
| 27363 | Stekoll Oil & Gas, LTD. | | Oil Operator | Jun 1963 |
| 27364 | Stekoll Petroleu | | Oil Operator | Oct 1985 |
| 27365 | Stelbar Oil Corp | Wichita, KS 67206 | Oil & Gas Operator | Aug 1995 |
| 27366 | Stelbar Oil Corporation, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Apr 2026 |
| 27367 | Stellar Oil Company | Arvada, CO 80006 | Oil & Gas Operator | Dec 1998 |
| 27368 | Steller Energy & Investment Corp | Plano, TX 75093 | Oil & Gas Operator | Feb 2021 |
| 27369 | Stellex | De Leon, TX 76444 | Oil & Gas Operator | Sep 2026 |
| 27370 | Stelucan Energy, LLC | Wichita Falls, TX 76310 | Oil & Gas Operator | Sep 2026 |
| 27371 | Stelzer Drilling Co. Inc. | Post, TX 79356 | Oil Operator | Sep 2026 |
| 27372 | Stelzer, E.A. Oil Company | Post, TX 79356 | Oil & Gas Operator | Feb 2002 |
| 27373 | Stelzer, J. C. | Post, TX 79356 | Oil & Gas Operator | Dec 1995 |
| 27374 | Stenco | | Oil & Gas Operator | Apr 1994 |
| 27375 | Stepco Incorpora | | Oil Operator | Nov 1994 |
| 27376 | Stepco Oil, Inc. | Ellinwood, KS 67526 | Oil Operator | Jan 2020 |
| 27377 | Stepco, Inc. | Ellinwood, KS 67526 | Oil Operator | Feb 2005 |
| 27378 | Stephen L Satterfield Production Company | Grantsville, WV 261470757 | Oil & Gas Operator | Nov 2021 |
| 27379 | Stephen Michael Inc | Midwest City, OK 73130-5200 | Oil & Gas Operator | Oct 2015 |
| 27380 | Stephen W. Bradford | | Oil Operator | Dec 1996 |
| 27381 | Stephens & Johnson Op Co | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2026 |
| 27382 | Stephens & Johnson Operating Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 27383 | Stephens Energy Co LLC | | Oil & Gas Operator | Feb 2010 |
| 27384 | Stephens Energy Corp. | Graham, TX 76450 | Oil & Gas Operator | Feb 2022 |
| 27385 | Stephens Energy Group LLC | The Woodlands, TX 77380 | Oil & Gas Operator | May 2026 |
| 27386 | Stephens Exploration, Inc. | Dallas, TX 75367 | Oil & Gas Operator | Jun 2026 |
| 27387 | Stephens Oil Co. | | Oil Operator | Dec 2017 |
| 27388 | Stephens Oil Company, LLC | Stephens, AR 71764 | Oil Operator | Jan 2025 |
| 27389 | Stephens Operating Inc | Ardmore, OK 73401 | Oil & Gas Operator | Sep 2014 |
| 27390 | Stephens Production Company | The Woodlands, TX 77381 | Oil & Gas Operator | Jun 2026 |
| 27391 | Stephens Williston, LLC Dba Seg Williston, LLC | | Oil & Gas Operator | Jun 2026 |
| 27392 | Stephens, Autry C. | Midland, TX 79701 | Oil & Gas Operator | Mar 2023 |
| 27393 | Stephens, Clayton E. | Dallas, TX 75229 | Oil & Gas Operator | Nov 2011 |
| 27394 | Stephens, Glynn | Overton, TX 75684 | Oil & Gas Operator | Oct 2001 |
| 27395 | Stephens, Hayseed Oil Inc. | Weatherford, TX 76087 | Oil & Gas Operator | Mar 2008 |
| 27396 | Stephens, Mickie L. | MC Camey, TX 79752 | Oil & Gas Operator | Aug 1998 |
| 27397 | Stephens, Morris | Graham, TX 76450 | Oil & Gas Operator | May 1996 |
| 27398 | Stephenson Group Natural Gas Co | | Gas Operator | Dec 2020 |
| 27399 | Stephenson John | | Oil Operator | Dec 1985 |
| 27400 | Stephenson L G & | | Oil Operator | Apr 1987 |