| 10301 | Spartan Petroleum Corporation | Houston, TX 77079 | Oil & Gas Operator | Oct 1987 |
| 10302 | Spear Production Company, Inc. | Shreveport, LA 71161 | Oil Operator | Jun 2026 |
| 10303 | Spearco Oil | Electra, TX 76360 | Oil & Gas Operator | Aug 2003 |
| 10304 | Speartex Grain Company | Gruver, TX 79040 | Oil & Gas Operator | Jun 2026 |
| 10305 | Speartip Energy, LLC | Katy, TX 77450 | Oil Operator | Jun 2026 |
| 10306 | Special Energy Corp. | Stillwater, OK 74076 | Oil & Gas Operator | Jun 2026 |
| 10307 | Special JHR Corp | Bridgeville, PA 15017 | Oil & Gas Operator | Jun 2026 |
| 10308 | Speckle Trout Operating LLC | Diboll, TX 75941 | Oil Operator | Jun 2026 |
| 10309 | Spectral Oil & Gas Corporation | Humble, TX 77338 | Oil Operator | Jun 2026 |
| 10310 | Speed, F. Michael, Trustee | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Aug 1998 |
| 10311 | Speegle Oil And Gas Company | Longview, TX 75605 | Oil & Gas Operator | Jun 2026 |
| 10312 | Speller Oil Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 2026 |
| 10313 | Spence Energy Company | Dallas, TX 75360 | Oil & Gas Operator | Jun 2026 |
| 10314 | Spence, Ralph Oil Company, Inc. | Tyler, TX 75701 | Oil & Gas Operator | Jun 2023 |
| 10315 | Spencer Oil Company | Borger, TX 79007 | Oil & Gas Operator | Mar 2026 |
| 10316 | Spencer-Cloughly Investments Inc | San Marcos, TX 78666 | Oil & Gas Operator | Aug 2002 |
| 10317 | Spenergy Corp. | Midland, TX 79701 | Oil & Gas Operator | Dec 1999 |
| 10318 | SPH Development, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Nov 2022 |
| 10319 | Spheric Petroleum Inc. | Pikesville, MD 21208 | Oil & Gas Operator | Nov 2006 |
| 10320 | Spi Operations LLC | Midland, TX 79710 | Oil & Gas Operator | Jan 2013 |
| 10321 | Spicer Oil Company, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2008 |
| 10322 | Spicewood Operating Company, LLC | Austin, TX 78746 | Oil & Gas Operator | Jun 2026 |
| 10323 | Spikes, Harry | Henrietta, TX 76365 | Oil & Gas Operator | Sep 2000 |
| 10324 | Spiller Oil & Gas Company | Jacksboro, TX 76458 | Oil Operator | Jun 2026 |
| 10325 | Spiller Operating Co., Inc. | Round Rock, TX 78665 | Oil & Gas Operator | May 2015 |
| 10326 | Spiller, H. G. | San Antonio, TX 78213 | Oil & Gas Operator | Oct 1993 |
| 10327 | Spiller, J. A. Company | Austin, TX 78735 | Oil & Gas Operator | Jan 2016 |
| 10328 | Spiller, J.A. | Austin, TX 78735 | Oil & Gas Operator | Jan 2016 |
| 10329 | Spiller, Joseph A. | Austin, TX 78746 | Oil & Gas Operator | Oct 1993 |
| 10330 | Spiller, Robert S. | San Antonio, TX 78213 | Oil & Gas Operator | Oct 1995 |
| 10331 | Spindletop Drilling Co. | Dallas, TX 75230 | Oil & Gas Operator | Jun 2026 |
| 10332 | Spindletop Oil & Gas Co. | Dallas, TX 75230 | Oil & Gas Operator | Jun 2026 |
| 10333 | Spinnaker Exploration Co.,L.L.C. | Houston, TX 77002 | Oil & Gas Operator | Nov 2005 |
| 10334 | Spiral Energy Corp. | Midland, TX 79705 | Oil & Gas Operator | Dec 2019 |
| 10335 | Spirit Energy L.L.C. | Caddo Mills, TX 75135 | Oil & Gas Operator | Dec 2018 |
| 10336 | Spirit O&G Operating, LLC | Houston, TX 77010 | Oil & Gas Operator | Jun 2026 |
| 10337 | Spitfire Partners, LLC | Dallas, TX 75225 | Oil Operator | Jun 2026 |
| 10338 | Spivey, R. L. | Olney, TX 76374 | Oil Operator | Jul 2005 |
| 10339 | Sponte Operating, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Jun 2026 |
| 10340 | Spoonemore Brothers | Spearman, TX 79081 | Oil & Gas Operator | Nov 2019 |
| 10341 | Spragins, Ed | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 2026 |
| 10342 | Spri Oil & Gas, LLC | Houston, TX 77090 | Oil & Gas Operator | Mar 2020 |
| 10343 | Spring Resources, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jul 2007 |
| 10344 | Spring Tree Management LC | Abilene, TX 79604 | Oil Operator | May 2013 |
| 10345 | Springfield Oil Services, Inc. | Mamaroneck, NY 10543 | Oil & Gas Operator | Jun 2026 |
| 10346 | Springs, Jesse | Luling, TX 78648 | Oil & Gas Operator | Jun 1998 |
| 10347 | Sproul, C. R. Inc. | Eldorado, TX 76936 | Oil & Gas Operator | Aug 2000 |
| 10348 | Spruiell Drilling Co., Inc. | Holliday, TX 76366 | Oil & Gas Operator | Jun 2026 |
| 10349 | Spur Energy | Midland, TX 79708 | Oil & Gas Operator | Mar 1996 |
| 10350 | Spur Operating Co. | Austin, TX 78701 | Oil & Gas Operator | Jun 2026 |
| 10351 | Square Mile Energy, L.L.C. | Houston, TX 77057 | Oil & Gas Operator | Jun 2026 |
| 10352 | Square One Corporation | Giddings, TX 78942 | Oil & Gas Operator | Dec 2012 |
| 10353 | Square One Energy, Inc. | Tulsa, OK 74159 | Oil & Gas Operator | Oct 2015 |
| 10354 | Squaw Mountain Oil, LLC | Jacksboro, TX 76458 | Oil Operator | Jun 2026 |
| 10355 | Squyres Oil Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2024 |
| 10356 | SR Production Corp. | Liberty, TX 77575 | Oil & Gas Operator | Mar 2010 |
| 10357 | SRG Oil Corporation | Abilene, TX 79604 | Oil & Gas Operator | Apr 1994 |
| 10358 | SRS Properties, LLC | Whitehouse, TX 75791 | Oil & Gas Operator | Jun 2026 |
| 10359 | SRV Oil Co | Coleman, TX 76834 | Oil Operator | Jun 2026 |
| 10360 | SS Operating LLC | Water Valley, TX 76958 | Oil Operator | Jun 2026 |
| 10361 | SSC, Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Jun 2026 |
| 10362 | St Johns Operating #1 LP | Houston, TX 77060 | Oil & Gas Operator | Aug 2023 |
| 10363 | St. Cajetan Oil Company, LLC | Gainesville, TX 76240 | Oil & Gas Operator | Jun 2026 |
| 10364 | St. Clair Energy Corporation | Tulsa, OK 74153 | Oil & Gas Operator | Mar 2008 |
| 10365 | St. Mary Energy Company | Houston, TX 77079 | Oil & Gas Operator | Aug 2008 |
| 10366 | St. Mary Land & Exploration Co | Denver, CO 80201 | Oil & Gas Operator | Jun 2010 |
| 10367 | St. Mary Operating Company | Denver, CO 80203 | Oil & Gas Operator | Mar 2019 |
| 10368 | Sta-Kel Incorporated | Graham, TX 76450 | Oil & Gas Operator | Dec 2000 |
| 10369 | Stablerock Energy L.L.C. | Oklahoma City, OK 73106 | Oil & Gas Operator | Jun 2026 |
| 10370 | Stacha, Eddy A. | Rice, TX 75155 | Oil & Gas Operator | Jun 2026 |
| 10371 | Stacy Reamy | Purdon, TX 76679 | Oil Operator | Jun 2026 |
| 10372 | Stagg Investment Group, Inc. | Midland, TX 79701 | Oil Operator | May 2013 |
| 10373 | Staggered T Oil LLC | Quanah, TX 79252 | Oil Operator | Jun 2026 |
| 10374 | Staghorn Petroleum II LLC | Tulsa, OK 74103-3500 | Oil & Gas Operator | Mar 2026 |
| 10375 | Staghorn Resources, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |
| 10376 | Stahl Petroleum Co. | Amarillo, TX 79118 | Oil & Gas Operator | Aug 2003 |
| 10377 | Stal Oil Production, L.L.C. | Argyle, TX 76226 | Oil Operator | Jun 2026 |
| 10378 | Staley Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2000 |
| 10379 | Staley Operating Co. | Midland, TX 79702 | Oil & Gas Operator | Jan 2022 |
| 10380 | Staley, Jack C. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2000 |
| 10381 | Stalking Horse Energy, Limited Liability Company | Houston, TX 77062 | Oil & Gas Operator | Jun 2026 |
| 10382 | Stallion Energy LLC | Houston, TX 77090 | Oil & Gas Operator | Oct 2009 |
| 10383 | Stallion Energy, Inc. | Houston, TX 77060 | Oil & Gas Operator | Oct 2017 |
| 10384 | Stallion Oil Company | Lafayette, LA 70505 | Oil & Gas Operator | Jun 2004 |
| 10385 | Stallion Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2026 |
| 10386 | Stampede Energy Corp. | Canada, 00100 | Oil & Gas Operator | Mar 2000 |
| 10387 | Stamper Operating Co., Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Jun 2026 |
| 10388 | Standard Oil Company, Inc. | Parkesburg, WV 26103 | Oil & Gas Operator | Mar 2022 |
| 10389 | Standard Resources Corp. | Houston, TX 77063 | Oil & Gas Operator | Jun 2026 |
| 10390 | Stanolind Operating Corp. | Midland, TX 79701 | Oil & Gas Operator | Apr 2008 |
| 10391 | Stanolind Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2021 |
| 10392 | Stanolind Permian LLC | Midland, TX 79710 | Oil & Gas Operator | Jun 2026 |
| 10393 | Stanolind Production LLC | Midland, TX 79702 | Oil & Gas Operator | Dec 2020 |
| 10394 | Stanotex, LLC | Katy, TX 77494 | Oil & Gas Operator | Jun 2026 |
| 10395 | Stanton Mineral Development Inc | Austin, TX 78759 | Oil & Gas Operator | Jun 2026 |
| 10396 | Staples, James W. | Tuleta, TX 78162 | Oil & Gas Operator | Sep 2014 |
| 10397 | Staples, James W. Prod. Co. | Tuleta, TX 78162 | Oil & Gas Operator | Jun 2026 |
| 10398 | Staples, Tommy Oil Co. | Pettus, TX 78146 | Oil & Gas Operator | Mar 2008 |
| 10399 | Star Energy Inc | Dayton, PA 16222-4325 | Oil & Gas Operator | Dec 2025 |
| 10400 | Star Of Texas Energy SRVS, Inc. | Austin, TX 78702 | Oil & Gas Operator | Jun 2026 |