| 26301 | Sidney Lanier | Midland, TX BADADDR | Oil & Gas Operator | Jan 1996 |
| 26302 | Sidwell Oil & Ga | | Oil & Gas Operator | May 1993 |
| 26303 | Sidwell Oil & Gas, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Sep 2014 |
| 26304 | Sidwell Operating Company, L.P. | Amarillo, TX 79105 | Oil & Gas Operator | Sep 2026 |
| 26305 | Sidwell Theodore R Jr | Thornville, OH 43076 | Oil & Gas Operator | Dec 1988 |
| 26306 | Sieg Energy, Inc. | Ottawa, KS 66067 | Oil Operator | Nov 2025 |
| 26307 | Siegfried R H In | | Oil Operator | Apr 1985 |
| 26308 | Siegfried R H Inc | Tulsa, OK 74104 | Oil & Gas Operator | Mar 2008 |
| 26309 | Siemsen Operating, LLC | Holyrood, KS 67450 | Oil Operator | May 2026 |
| 26310 | Sien Operating Company, LLC | San Antonio, TX 78209 | Oil Operator | May 2023 |
| 26311 | Sierra Blanca Operating Company | Cleburne, TX BADADDR | Oil & Gas Operator | May 1999 |
| 26312 | Sierra Drilling | | Oil Operator | Sep 1988 |
| 26313 | Sierra Exploration Company | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2008 |
| 26314 | Sierra Group, L.L.C. | San Angelo, TX 76904 | Oil & Gas Operator | Jan 2025 |
| 26315 | Sierra Industries, Inc. | | Oil & Gas Operator | Apr 1989 |
| 26316 | Sierra Madre LLC | Greensburg, KS 67054 | Oil & Gas Operator | May 2015 |
| 26317 | Sierra Madre Natural Res., LLC | Dallas, TX 75225 | Oil & Gas Operator | Dec 2016 |
| 26318 | Sierra Madre Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 2026 |
| 26319 | Sierra Minerals, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Sep 2026 |
| 26320 | Sierra Oil Company | Fort Worth, TX 76106 | Oil & Gas Operator | Sep 2026 |
| 26321 | Sierra Petroleum | | Oil & Gas Operator | Sep 1986 |
| 26322 | Sierra Production Company | | Oil & Gas Operator | May 1986 |
| 26323 | Sierra Reserve Company | | Oil Operator | Dec 1985 |
| 26324 | Sierra Resources, Inc. | Oklahoma City, OK 73142 | Oil & Gas Operator | Jul 2026 |
| 26325 | Sierra Resources, LLC | Houston, TX 77219 | Oil & Gas Operator | Aug 2021 |
| 26326 | Sierra Trading Corporation | | Oil & Gas Operator | Sep 1978 |
| 26327 | Siete Oil And Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 26328 | Sigma Corporation | Charleston, WV 253012644 | Gas Operator | Dec 2021 |
| 26329 | Sigma Energy & Explor., Co LLC | Ozona, TX 76943 | Oil & Gas Operator | Feb 2010 |
| 26330 | Sigma Energy, LLC | | Oil Operator | Jan 2025 |
| 26331 | Sigma Exploration Corp., The | Dallas, TX 75230 | Oil & Gas Operator | Sep 1998 |
| 26332 | Sigma Oper & Develop Co., Inc. | Midland, TX 79701 | Oil & Gas Operator | Sep 2026 |
| 26333 | Sigmon Production Company, Inc. | Longview, TX 75608 | Oil & Gas Operator | Dec 2013 |
| 26334 | Signal Hill Company LLC | Cody, WY 82414 | Oil & Gas Operator | Dec 2024 |
| 26335 | Signal Hill Expl & Pet Inc | Duncan, OK 73533 | Oil & Gas Operator | Mar 2015 |
| 26336 | Signal Hill Operating LLC | | Oil & Gas Operator | Jul 2026 |
| 26337 | Signal Hill Petroleum Inc. | | Oil & Gas Operator | Jul 2026 |
| 26338 | Signal Oil And Gas Company | Colleyville, TX 76034 | Oil & Gas Operator | Sep 2026 |
| 26339 | Signal Oil Company, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 26340 | Signal Operating L.L.C. | | Oil Operator | Jan 2025 |
| 26341 | Signal Petroleum | | Oil & Gas Operator | Jul 1980 |
| 26342 | Signal, LLC | | Oil & Gas Operator | Jun 2026 |
| 26343 | Signal, LLC Of Mississippi | | Oil & Gas Operator | Dec 2024 |
| 26344 | Signature Exploration Inc. | Shawnee, OK 74804-4130 | Oil & Gas Operator | Mar 2015 |
| 26345 | Sikes Oil Company Inc | Velma, OK 73091-0759 | Oil & Gas Operator | Jan 2014 |
| 26346 | Sikes Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Jun 2003 |
| 26347 | Sikes, Arlas M. | Brownwood, TX 76801 | Oil & Gas Operator | May 2000 |
| 26348 | Silberman A & M Oil | Oklahoma City, OK 73122-3096 | Oil & Gas Operator | Apr 2014 |
| 26349 | Silent Stone Energy LLC | | Oil & Gas Operator | Jun 2026 |
| 26350 | Silhan, Terry | Marion, KS 66861 | Oil & Gas Operator | Dec 2009 |
| 26351 | Silleman, Drew C. | Cattaraugus, NY 14719 | Gas Operator | Dec 2025 |
| 26352 | Siltstone Resources Op II, LLC | Wilmington, DE 19801 | Oil & Gas Operator | Sep 2026 |
| 26353 | Silvco Energy, LLC | | Oil Operator | Apr 2014 |
| 26354 | Silver Anchor Resources LLC | Azle, TX 76020 | Oil & Gas Operator | Sep 2026 |
| 26355 | Silver Creek Oil | Merkel, TX 79536 | Oil & Gas Operator | Aug 2003 |
| 26356 | Silver Creek Oil & Gas, Inc. | Wichita, KS 67203 | Oil Operator | Dec 1997 |
| 26357 | Silver Creek Oil & Gas, LLC | Flower Mound, TX 75022 | Oil & Gas Operator | Sep 2026 |
| 26358 | Silver Creek Permian Op Co, LLC | Irving, TX 75038 | Oil & Gas Operator | Apr 2023 |
| 26359 | Silver Creek Resources, LLC | Irving, TX 75038 | Oil & Gas Operator | Apr 2017 |
| 26360 | Silver Cross Energy Partners LLC | Richmond, TX 77469 | Oil & Gas Operator | Sep 2026 |
| 26361 | Silver Eagle Oil Company | Ada, OK 74820 | Oil Operator | Dec 2004 |
| 26362 | Silver Exploration Company | | Oil & Gas Operator | Jul 2026 |
| 26363 | Silver Fox Oil & Gas LLC | McAllen, TX 78504 | Oil & Gas Operator | Sep 2026 |
| 26364 | Silver Hill Energy Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Sep 2026 |
| 26365 | Silver Hill Energy Partners, LLC | Dallas, TX 75219 | Oil & Gas Operator | Feb 2017 |
| 26366 | Silver Mountain Energy LLC | | Gas Operator | Dec 2025 |
| 26367 | Silver Oak Energy, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2016 |
| 26368 | Silver Oak Operating, Inc. | Longview, TX 75601 | Oil & Gas Operator | Dec 2009 |
| 26369 | Silver Oak Operating, LLC | Longview, TX 75604 | Oil & Gas Operator | Sep 2026 |
| 26370 | Silver Oil & Gas Inc. | San Angelo, TX 76906 | Oil & Gas Operator | Sep 2026 |
| 26371 | Silver Petroleum Inc | | Gas Operator | Dec 2001 |
| 26372 | Silver Pines Energy Corp. | Houston, TX 77005 | Oil & Gas Operator | Jun 2026 |
| 26373 | Silver Rock Energy, LLC | Terrell, TX 75160 | Oil Operator | Sep 2026 |
| 26374 | Silver Spike Energy Oper, LLC | Midland, TX 79710 | Oil & Gas Operator | Dec 2015 |
| 26375 | Silver Spike Energy Operating Of NM, LLC | Midland, TX 79701 | Oil Operator | Jul 2016 |
| 26376 | Silver Star Of Nevada Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Jun 2026 |
| 26377 | Silver Star Operating Co., LLC | Nada, TX 77460 | Gas Operator | Sep 2026 |
| 26378 | Silver Star Production Co | Moore, OK 73160-6202 | Oil & Gas Operator | Jun 2026 |
| 26379 | Silver Thread Oil & Gas, Inc. | | Oil & Gas Operator | Jul 2015 |
| 26380 | Silver Tusk Operating Co. LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2018 |
| 26381 | Silverado Oil Inc | Greeley, CO 80631 | Oil Operator | Apr 2000 |
| 26382 | Silverado Oil LTD | Ardmore, OK 73401 | Oil & Gas Operator | Jun 2003 |
| 26383 | Silverado Operating LLC | Plntersville, TX 77363 | Oil Operator | Sep 2026 |
| 26384 | Silverback Operating II, LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Jun 2026 |
| 26385 | Silverback Operating, LLC | San Antonio, TX 78257 | Oil & Gas Operator | Oct 2016 |
| 26386 | Silverbacq LLC | | Oil & Gas Operator | Jul 2026 |
| 26387 | Silverbow Resources Oper, LLC | Houston, TX 77002 | Oil & Gas Operator | May 2026 |
| 26388 | Silverbrook Operating II LLC | Barker, TX 77413 | Oil & Gas Operator | Sep 2026 |
| 26389 | Silverbrook Operating, LLC | Barker, TX 77413 | Oil & Gas Operator | Sep 2026 |
| 26390 | Silverridge Corp | Van Buren, AR 72956 | Oil & Gas Operator | Mar 2015 |
| 26391 | Silvertin Farm Production LLC | Poteau, OK 74953 | Oil & Gas Operator | Apr 2020 |
| 26392 | Simar Petroleum, LLC | | Oil Operator | Dec 2024 |
| 26393 | Simasko Producti | | Oil Operator | Dec 1986 |
| 26394 | Simasko Production Co | Denver, CO 80204 | Oil & Gas Operator | Nov 1997 |
| 26395 | Simata Energy | Midland, TX 79708 | Oil & Gas Operator | Sep 2026 |
| 26396 | Simata Energy, LLC | Midland, TX 79708 | Oil & Gas Operator | Sep 2026 |
| 26397 | Simco Oil Company | | Oil Operator | Jul 1990 |
| 26398 | Simco Oil, LLC | Lytle, TX 78052 | Oil Operator | Sep 2026 |
| 26399 | Simco Operating | Shawnee, OK 74804-2501 | Oil Operator | Jan 2013 |
| 26400 | Simco Petroleum | Cheyenne, WY 82003 | Oil & Gas Operator | Oct 2009 |