| 27201 | Spivey, William | Hays, KS 67601 | Oil Operator | Jun 1993 |
| 27202 | Splawn & Splawn | Saint Louis, OK 74866-0098 | Oil & Gas Operator | Mar 2025 |
| 27203 | Splechter, Tim | Yates Center, KS 66783 | Oil Operator | Mar 2026 |
| 27204 | SPN Energy, LLC | Guston, KY 40142 | Gas Operator | Dec 2024 |
| 27205 | Spokane Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 27206 | Sponte Operating, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Jul 2026 |
| 27207 | Spoonemore Brothers | Spearman, TX 79081 | Oil & Gas Operator | Nov 2019 |
| 27208 | Spooner & Marlin Expl., Inc. | | Oil & Gas Operator | Mar 1990 |
| 27209 | Spooner Petroleum Company | | Oil & Gas Operator | May 2026 |
| 27210 | Spotted Hawk Development, LLC | | Oil & Gas Operator | May 2026 |
| 27211 | Spradco, Inc. | Towanda, KS 67144 | Oil Operator | Mar 2026 |
| 27212 | Spragins Ed S | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2026 |
| 27213 | Spragins, Ed | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2026 |
| 27214 | Sprague, Gary L. | Versailles, NY 14168 | Gas Operator | Dec 2025 |
| 27215 | Spri Oil & Gas, LLC | Houston, TX 77090 | Oil & Gas Operator | Mar 2020 |
| 27216 | Spring Creek Farm And Oil, LLC | Bixby, OK 74008 | Oil Operator | Jun 2025 |
| 27217 | Spring Industries Inc | Wellington, FL 33414 | Oil & Gas Operator | Dec 2016 |
| 27218 | Spring Operating Company | Edmond, OK 73034 | Oil & Gas Operator | May 2026 |
| 27219 | Spring Resources, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jul 2007 |
| 27220 | Spring Tide Petroleum Inc | Broken Arrow, OK 74011-6651 | Oil & Gas Operator | Oct 2025 |
| 27221 | Spring Tree Management LC | Abilene, TX 79604 | Oil Operator | May 2013 |
| 27222 | Spring Valley Development Co LLC | Centennial, CO 80014 | Oil & Gas Operator | Jan 2026 |
| 27223 | Spring Valley Oil & Gas Inc | Drummond, OK 73735 | Oil & Gas Operator | May 2026 |
| 27224 | Spring, Harry A. | Ardmore, OK 73401 | Oil Operator | Jul 2012 |
| 27225 | Springer Energy Company, LLC | Akron, OH 44313 | Oil & Gas Operator | Dec 2025 |
| 27226 | Springer, Lee A. | Independence, KS 67301 | Oil Operator | May 2014 |
| 27227 | Springfield Oil Services, Inc. | Mamaroneck, NY 10543 | Oil & Gas Operator | Jul 2026 |
| 27228 | Springline Operating LLC | | Oil & Gas Operator | May 2026 |
| 27229 | Springs, Jesse | Luling, TX 78648 | Oil & Gas Operator | Jun 1998 |
| 27230 | Springville-Griffith Institute Central School Dist | Springville, NY 14141 | Gas Operator | Dec 2025 |
| 27231 | Sproul, C. R. Inc. | Eldorado, TX 76936 | Oil & Gas Operator | Aug 2000 |
| 27232 | Spruiell Drilling Co., Inc. | Holliday, TX 76366 | Oil & Gas Operator | Jul 2026 |
| 27233 | SPS, Inc. | Cheney, KS 67025 | Oil & Gas Operator | Mar 2026 |
| 27234 | Spur Energy | Midland, TX 79708 | Oil & Gas Operator | Mar 1996 |
| 27235 | Spur Energy Partners LLC | Houston, TX 77024 | Oil & Gas Operator | May 2026 |
| 27236 | Spur Operating Co. | Austin, TX 78701 | Oil & Gas Operator | Jul 2026 |
| 27237 | Spurgeon William Allan | Nowata, OK 74048-9713 | Oil Operator | Feb 2010 |
| 27238 | Spurgeon William C & Tammy D | Hominy, OK 74035 | Oil & Gas Operator | Apr 2026 |
| 27239 | Spyglass Cedar Creek, LP | | Gas Operator | Jul 2012 |
| 27240 | Spyglass Oil & Gas LLC | | Oil & Gas Operator | Dec 2024 |
| 27241 | Square Mile Energy, L.L.C. | Houston, TX 77057 | Oil & Gas Operator | Jul 2026 |
| 27242 | Square One Corporation | Giddings, TX 78942 | Oil & Gas Operator | Dec 2012 |
| 27243 | Square One Energy, Inc. | Tulsa, OK 74159 | Oil & Gas Operator | Oct 2015 |
| 27244 | Squaw Mountain Oil, LLC | Jacksboro, TX 76458 | Oil Operator | Jul 2026 |
| 27245 | Squirrel Oil & Gas Inc | Tonkawa, OK 74653 | Oil & Gas Operator | Mar 2022 |
| 27246 | Squyres Oil Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2024 |
| 27247 | SR Production Corp. | Liberty, TX 77575 | Oil & Gas Operator | Mar 2010 |
| 27248 | Sram Oil Incorporated | Winfield, KS 67156 | Oil & Gas Operator | Aug 2005 |
| 27249 | SRG Oil Corporation | Abilene, TX 79604 | Oil & Gas Operator | Apr 1994 |
| 27250 | SRP Production Corp. | | Oil & Gas Operator | Nov 1997 |
| 27251 | SRS Properties, LLC | Whitehouse, TX 75791 | Oil & Gas Operator | Jul 2026 |
| 27252 | SRV Oil Co | Coleman, TX 76834 | Oil Operator | Jul 2026 |
| 27253 | SRW Operating LLC | Duncan, OK 73534-2087 | Oil & Gas Operator | Sep 2014 |
| 27254 | SS Operating LLC | Water Valley, TX 76958 | Oil Operator | Jul 2026 |
| 27255 | SSB Production LC | Ardmore, OK 73401 | Oil & Gas Operator | Apr 2026 |
| 27256 | SSC, Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Jul 2026 |
| 27257 | Ssi Energy LLC | | Oil & Gas Operator | Jul 2021 |
| 27258 | SSM Partnership-PV79 | | Oil Operator | Jun 1989 |
| 27259 | Ssouri Oil Ventures | | Oil Operator | Jan 2022 |
| 27260 | St Cleric Resources LLC | | Gas Operator | May 2026 |
| 27261 | St Croix LTD | Fairlawn, OH 44334 | Oil & Gas Operator | Dec 2022 |
| 27262 | St Croix Operating Inc | | Oil & Gas Operator | Apr 2026 |
| 27263 | St Johns Operating #1 LP | Houston, TX 77060 | Oil & Gas Operator | Aug 2023 |
| 27264 | St Michael Exploration | | Oil & Gas Operator | Jun 1987 |
| 27265 | St Oil Company | Denver, CO 80264-2101 | Oil & Gas Operator | Dec 2010 |
| 27266 | St Oil Company LLC | New York, NY 10005-4016 | Oil Operator | Apr 2026 |
| 27267 | St Petroleum, Inc. | Edgerton, KS 66021 | Oil Operator | Mar 2026 |
| 27268 | St. Cajetan Oil Company, LLC | Gainesville, TX 76240 | Oil & Gas Operator | Jul 2026 |
| 27269 | St. Clair Energy Corporation | Tulsa, OK 74153 | Oil & Gas Operator | Mar 2008 |
| 27270 | St. Clair Oil Co. | St Clairsville, OH 43950 | Oil & Gas Operator | Dec 1997 |
| 27271 | St. Columban'S On The Lake, Inc. | Silver Creek, NY 14136 | Gas Operator | Dec 2025 |
| 27272 | St. Croix Corporation | | Oil & Gas Operator | Apr 1990 |
| 27273 | St. James Oil Corporation | | Oil & Gas Operator | Dec 2009 |
| 27274 | St. Mary Energy Company | Houston, TX 77079 | Oil & Gas Operator | Aug 2008 |
| 27275 | St. Mary Land & Exploration Co | Denver, CO 80201 | Oil & Gas Operator | Jun 2010 |
| 27276 | St. Mary Operating Company | Denver, CO 80203 | Oil & Gas Operator | Mar 2019 |
| 27277 | St. Paul Oil And Gas Corp. | | Oil & Gas Operator | Aug 1991 |
| 27278 | Sta-Kel Incorporated | Graham, TX 76450 | Oil & Gas Operator | Dec 2000 |
| 27279 | Staab Alan R | Tulsa, OK 74114-4213 | Oil & Gas Operator | Sep 2010 |
| 27280 | Staab Energy & Leasing | | Oil Operator | Sep 2025 |
| 27281 | Staab Oil Co., A General Partnership | Hays, KS 67601 | Oil Operator | Mar 2026 |
| 27282 | Staats & Martin | | Oil Operator | Aug 2013 |
| 27283 | Staats, William N | | Oil & Gas Operator | Apr 2026 |
| 27284 | Stablerock Energy L.L.C. | Oklahoma City, OK 73106 | Oil & Gas Operator | Jul 2026 |
| 27285 | Stach Enterprises LLC | Nashport, OH 43830 | Oil & Gas Operator | Dec 2021 |
| 27286 | Stacha, Eddy A. | Rice, TX 75155 | Oil & Gas Operator | Jul 2026 |
| 27287 | Stachler William L | Danville, OH 43014 | Oil & Gas Operator | Dec 1989 |
| 27288 | Stack Production | Dewey, OK 74029 | Oil & Gas Operator | Mar 2002 |
| 27289 | Stackhouse Construction Inc | Orwell, OH 44076 | Oil & Gas Operator | Dec 2025 |
| 27290 | Stacy Operating LLC | Cushing, OK 74023 | Oil & Gas Operator | Apr 2026 |
| 27291 | Stacy Reamy | Purdon, TX 76679 | Oil Operator | Jul 2026 |
| 27292 | Stafford, A C | | Oil Operator | Dec 2003 |
| 27293 | Stag Oil Producers Inc | Midland, TX 79701 | Oil & Gas Operator | Jan 1998 |
| 27294 | Stagecoach Pipeline & Storage Company LLC | | Gas Operator | Dec 2005 |
| 27295 | Stagg Investment Group, Inc. | Midland, TX 79701 | Oil Operator | May 2013 |
| 27296 | Staggered T Oil LLC | Quanah, TX 79252 | Oil Operator | Jul 2026 |
| 27297 | Staghorn Energy, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2026 |
| 27298 | Staghorn Petroleum II LLC | Tulsa, OK 74103-3500 | Oil & Gas Operator | May 2026 |
| 27299 | Staghorn Petroleum LLC | Tulsa, OK 74103-3500 | Oil & Gas Operator | Apr 2026 |
| 27300 | Staghorn Resources, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |