| 27201 | Stinnett Oil Company | | Oil Operator | Dec 1997 |
| 27202 | Stinson Gas Company, L.L.C. | | Gas Operator | Jul 2018 |
| 27203 | Stinson, Ernest Dba Logsdon Valley Oil | Horse Cave, KY 42749 | Oil Operator | Dec 2021 |
| 27204 | Stinson, Jan | | Oil Operator | May 1984 |
| 27205 | Stivers Inc | Graham, TX 76450 | Oil & Gas Operator | May 2003 |
| 27206 | Stivers Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 1995 |
| 27207 | Stiverson, R G Co, Inc | | Oil Operator | Dec 2011 |
| 27208 | Stixon Petroleum | | Oil Operator | Dec 1996 |
| 27209 | STL Oil & Gas LLC | Skiatook, OK 74070 | Oil & Gas Operator | Mar 2016 |
| 27210 | STL Resources LLC | Wexford, PA 15090-8380 | Gas Operator | Feb 2024 |
| 27211 | Sto Operating Company | San Antonio, TX 78258 | Oil & Gas Operator | May 2024 |
| 27212 | Stobaugh G B Trust | Oklahoma City, OK 73124 | Oil Operator | Jul 2023 |
| 27213 | Stober Oil And Gas Services, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | May 2024 |
| 27214 | Stockdale Energy Co. | | Gas Operator | Dec 1992 |
| 27215 | Stockdale Oil & Gas Inc. | | Oil & Gas Operator | Dec 2001 |
| 27216 | Stocker & Sitler Inc | Columbus, OH 43214-0981-0981 | Oil & Gas Operator | Dec 2002 |
| 27217 | Stoeppelwerth DR | | Oil Operator | May 1993 |
| 27218 | Stokes Donna L | Blanchard, OK 73010-0364 | Oil & Gas Operator | Jun 2023 |
| 27219 | Stoll, James G | Eden, NY 14057 | Gas Operator | Dec 2022 |
| 27220 | Stoltz Wagner & Brown | | Oil Operator | Nov 1998 |
| 27221 | Stoltz, Deane H. | Midland, TX 79710 | Oil & Gas Operator | Oct 2000 |
| 27222 | Stone & Webster Oil Company, Inc | Houston, TX 77002 | Oil & Gas Operator | Dec 1995 |
| 27223 | Stone & Williams Oil&Gas Co.,Inc | Holliday, TX 76366 | Oil Operator | Apr 2013 |
| 27224 | Stone & Wolf LLC | Sheridan, WY 82801 | Oil & Gas Operator | Dec 2006 |
| 27225 | Stone Cabin Resources LLC | | Oil & Gas Operator | Mar 2024 |
| 27226 | Stone Creek Operating, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | May 2024 |
| 27227 | Stone Edge Energy, LLC | Georgetown, TX 78633 | Oil & Gas Operator | May 2024 |
| 27228 | Stone Energy Corporation | Denver, CO 80202-2828 | Oil & Gas Operator | Oct 2014 |
| 27229 | Stone Energy LLC | Denver, CO 80202 | Oil & Gas Operator | May 2005 |
| 27230 | Stone Family Operating LLC | Holliday, TX 76366 | Oil Operator | May 2024 |
| 27231 | Stone Mountain Petroleum, LLC | Houston, TX 77008 | Oil & Gas Operator | Aug 2002 |
| 27232 | Stone Oak Operating, LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Jan 2024 |
| 27233 | Stone Oil Compan | | Oil Operator | Jan 1990 |
| 27234 | Stone Oil Corp & McMoran Expl | | Oil & Gas Operator | Oct 1984 |
| 27235 | Stone Oil Corp - Strata Energy | | Oil & Gas Operator | Mar 1982 |
| 27236 | Stone Oil Corp-Forest Oil Corp | | Oil & Gas Operator | Jan 1983 |
| 27237 | Stone Oil-Lamson-Onshore Pet. | | Oil & Gas Operator | Jun 1985 |
| 27238 | Stone Oil-Quasar-Birthright | | Oil & Gas Operator | Feb 1981 |
| 27239 | Stone Petroleum Corporation | | Oil & Gas Operator | Dec 1996 |
| 27240 | Stone River Energy Corp | Edmond, OK 73034 | Oil & Gas Operator | Jan 2014 |
| 27241 | Stone Thomas R | Coweta, OK 74429-3293 | Oil & Gas Operator | Mar 2020 |
| 27242 | Stone, B. W. | Holliday, TX 76366 | Oil & Gas Operator | Feb 2012 |
| 27243 | Stone, Christopher J. | Littlefield, TX 79339 | Oil Operator | Jan 2024 |
| 27244 | Stone, D J | Palo Alto, CA 94301 | Oil & Gas Operator | Sep 1985 |
| 27245 | Stone, Gregory W. | Holliday, TX 76366 | Oil & Gas Operator | May 2024 |
| 27246 | Stone, J. G. Oil Co. | Victoria, TX 77904 | Oil & Gas Operator | Sep 2018 |
| 27247 | Stone, M. L. | Kerrville, TX 78029 | Oil & Gas Operator | Aug 2003 |
| 27248 | Stonebriar Oil LLC | Frisco, TX 75034 | Oil & Gas Operator | May 2024 |
| 27249 | Stonebriar Operating, LLC | Plano, TX 75093 | Oil Operator | May 2024 |
| 27250 | Stonebridge Operating Co LLC | Marietta, OH 45750-0060-0060 | Oil & Gas Operator | Dec 2023 |
| 27251 | Stoneburner Exploration, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Oct 1997 |
| 27252 | Stonegate Operators, Inc. | Addison, TX 75001 | Oil Operator | May 2024 |
| 27253 | Stonegate Production Company,LLC | Houston, TX 77024 | Oil & Gas Operator | May 2024 |
| 27254 | Stonegate Ranch LLC | Caney, KS 67333 | Oil Operator | Jan 2024 |
| 27255 | Stoneham Oil Company | Houston, TX 77002 | Oil & Gas Operator | Sep 1995 |
| 27256 | Stonehaven Energy MGT Co LLC | Marienville, PA 16239-1034 | Oil & Gas Operator | Dec 2019 |
| 27257 | Stoner Oil | Corsicana, TX 75109 | Oil Operator | May 2024 |
| 27258 | Stoner, C. M. | Cleburne, TX 76031 | Oil & Gas Operator | Oct 1996 |
| 27259 | Stoneridge Oil Inc | Ponca City, OK 74601-1600 | Oil & Gas Operator | Jan 2001 |
| 27260 | Stoneriver Energy, LLC | Lubbock, TX 79424 | Oil & Gas Operator | May 2024 |
| 27261 | Stonestreet, Vance | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2006 |
| 27262 | Stonetown Properties, LTD. | Amarillo, TX 79114 | Oil & Gas Operator | Dec 2016 |
| 27263 | Stonewall Gas Co | Jane Lew, WV 26378-80-80 | Oil & Gas Operator | Dec 1999 |
| 27264 | Stonewall Production Company Inc | Tyler, TX 75702 | Oil & Gas Operator | Aug 2009 |
| 27265 | Stoney Creek Production LLC | | Oil Operator | Dec 2016 |
| 27266 | Stoney Lake Production Co LLC | | Oil Operator | Feb 2024 |
| 27267 | Storck Omer | Tulsa, OK 74105 | Oil Operator | Apr 1997 |
| 27268 | Storm Burchett Dba Storm Resources, LLC | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 27269 | Storm Cat Energy (USA) Operating Corporation | Denver, CO 80202 | Gas Operator | Jun 2017 |
| 27270 | Storm Exploration Inc | Skiatook, OK 74070-1014 | Oil & Gas Operator | Jan 2013 |
| 27271 | Storm Industries | | Oil & Gas Operator | Dec 1988 |
| 27272 | Storm Oil | Burkburnett, TX 76354 | Oil & Gas Operator | May 2024 |
| 27273 | Storm Peak Energy, LLC | Midland, TX 79702 | Oil & Gas Operator | May 2012 |
| 27274 | Story NRG LLC | Boerne, TX 78006 | Oil & Gas Operator | May 2024 |
| 27275 | Story Oil And Gas Inc | Magnolia, AR 71753 | Oil & Gas Operator | Feb 2024 |
| 27276 | Stoskopf, Wayne | Hoisington, KS 67544 | Oil Operator | Apr 1995 |
| 27277 | Stotts-Kirkpatri | | Oil Operator | Oct 1991 |
| 27278 | Stouder DRLG Co | | Oil & Gas Operator | Dec 2022 |
| 27279 | Stoudt, Jean Marie | Broken Arrow, OK 74011 | Oil Operator | Jul 2023 |
| 27280 | Stout Consulting Services, Inc. | Alice, TX 78333 | Oil & Gas Operator | May 1999 |
| 27281 | Stout Energy Inc. | Midland, TX 79708 | Oil & Gas Operator | May 2024 |
| 27282 | Stout Energy Partners LLC | Sulphur SPGS, TX 75482 | Oil Operator | May 2024 |
| 27283 | Stovall Oil Company | Casper, WY 82602 | Oil & Gas Operator | Aug 1998 |
| 27284 | Stovall Operating Co. | Graham, TX 76450 | Oil & Gas Operator | May 2024 |
| 27285 | Stovall, Howard | Cisco, TX 76437 | Oil & Gas Operator | May 2024 |
| 27286 | Stovall, Troy | Graham, TX 76450 | Oil & Gas Operator | May 2024 |
| 27287 | Stover Company | Tulsa, OK 74152-0786 | Oil & Gas Operator | Jan 2013 |
| 27288 | Stover Oil Company | Konawa, OK 74849-0216 | Oil & Gas Operator | Jul 2002 |
| 27289 | Stover Petroleum Inc | | Oil & Gas Operator | Mar 1990 |
| 27290 | Stowe Energy, Inc. | Vernon, TX 76384 | Oil & Gas Operator | Mar 2003 |
| 27291 | Stowe Killingsworth | | Oil & Gas Operator | Apr 2023 |
| 27292 | Stowell, Cindy M. | Perry, NY 14530 | Gas Operator | Dec 2022 |
| 27293 | Stowers Energy, LLC | Clearwater Beach, FL 33767 | Oil & Gas Operator | Dec 2021 |
| 27294 | STP Cherokee, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2014 |
| 27295 | STP Newco Inc | Oklahoma City, OK 73102-5641 | Oil & Gas Operator | Jul 2021 |
| 27296 | Strabala Joseph | | Oil Operator | Jan 1992 |
| 27297 | Strachan Exploration Inc | Englewood, CO 80112 | Oil & Gas Operator | Feb 2024 |
| 27298 | Strago Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Aug 1994 |
| 27299 | Strahan Oil & Gas Co., Inc. | | Gas Operator | Oct 1983 |
| 27300 | Strait F W Incor | | Oil Operator | Jan 1992 |