| 26401 | Sedna Energy LLC | Blanchard, OK 73010-8043 | Gas Operator | Apr 2017 |
| 26402 | Sedona Oil & Gas Corporation | Austin, TX 78746 | Oil & Gas Operator | Jun 2025 |
| 26403 | See Oil | | Oil Operator | Feb 2025 |
| 26404 | Seeco | | Gas Operator | Mar 2016 |
| 26405 | Seeco, Inc. | | Gas Operator | Mar 2015 |
| 26406 | Seed Group/Aa Drilling | | Oil Operator | Oct 2009 |
| 26407 | Seedy Draw LLC | Greenwood VIllage, CO 80111 | Oil Operator | Apr 2025 |
| 26408 | Seek Energy, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2025 |
| 26409 | Seeker Oil Company II, Inc. | San Antonio, TX 78209 | Oil Operator | Jan 2016 |
| 26410 | Seeker Oil Company, Incorporated | San Antonio, TX 78209 | Oil & Gas Operator | Jun 2025 |
| 26411 | Seeker, LLC | Newkirk, OK 74647 | Oil & Gas Operator | Nov 2019 |
| 26412 | Seel-Mac Oil & Gas LLC | Richardson, TX 75080 | Oil Operator | Jul 2011 |
| 26413 | Seeley Oil Company, LLC | Cortez, CO 81321 | Oil & Gas Operator | Apr 2025 |
| 26414 | Seelig Oil Corpo | | Oil Operator | Apr 1985 |
| 26415 | Seely Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2025 |
| 26416 | Seelye, William L. | Plano, TX 75024 | Oil & Gas Operator | Oct 2005 |
| 26417 | Seer Operating LLC | Sheridan, WY 82801 | Oil & Gas Operator | Oct 2016 |
| 26418 | Seewald, Hughes | Amarillo, TX 79105 | Gas Operator | Jan 1997 |
| 26419 | Segars Operating | | Gas Operator | Apr 2014 |
| 26420 | Segco Oil & Gas Inc | Odessa, TX 79765 | Gas Operator | Oct 2005 |
| 26421 | Segler, Charles | Holliday, TX 76366 | Oil & Gas Operator | Mar 2008 |
| 26422 | Segrest-Ward Joint Venture | Longview, TX 75606 | Oil & Gas Operator | Jun 2001 |
| 26423 | Seguin Pump | Seguin, TX 78155 | Oil & Gas Operator | Sep 2017 |
| 26424 | Seguro Oil & Gas Inc | | Oil Operator | Jul 1992 |
| 26425 | Seguro Oil And Gas, LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2024 |
| 26426 | Seguro Well Service, Inc. | Gonzales, TX 78629 | Oil & Gas Operator | Jun 2025 |
| 26427 | Sei Operating, LLC | Mandeville, LA 70471 | Oil & Gas Operator | Jun 2025 |
| 26428 | Seibel Modern MFG. & Welding Corp. | Lancaster, NY 14086 | Gas Operator | Dec 2023 |
| 26429 | Seibert Darrel L/Chestnut | Cuyahoga Falls, OH 44224 | Oil & Gas Operator | Dec 1994 |
| 26430 | Seibert Oil & Gas | Hudson, OH 44236-4430-4430 | Oil & Gas Operator | Dec 1999 |
| 26431 | Seibert Oil, LLC | Macksville, KS 67557 | Oil & Gas Operator | Sep 2023 |
| 26432 | Seidler Oil & Gas Operating, LLC | Alvarado, TX 76009 | Oil & Gas Operator | Jun 2025 |
| 26433 | Seifert Companies LTD | Bremen, OH 43107 | Oil & Gas Operator | Dec 2023 |
| 26434 | Seifert, Timothy M. | Caledonia, NY 14423 | Gas Operator | Dec 2023 |
| 26435 | Seiguf Oil Company, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jun 2025 |
| 26436 | Seiran E & P Company, LLC | Friendswood, TX 77546 | Oil & Gas Operator | Jun 2025 |
| 26437 | Seisgen Exploration, Inc | Houston, TX 77024 | Gas Operator | Aug 2005 |
| 26438 | Seisma Drilling Corporation | Wichita Falls, TX 76301 | Oil Operator | Aug 2003 |
| 26439 | Seismic Investment Group, Inc. | Houston, TX 77055 | Oil & Gas Operator | Jun 2008 |
| 26440 | Seismic Leasing Service | Denver, CO 80216 | Oil & Gas Operator | Aug 2000 |
| 26441 | Seismotech Energy, Incorporated | Plano, TX 75075 | Oil & Gas Operator | Aug 2003 |
| 26442 | Seistech Development, Inc. | Midland, TX 79701 | Oil & Gas Operator | May 2007 |
| 26443 | Seitz Farms, Inc. | Phelps, NY 14532 | Gas Operator | Dec 2023 |
| 26444 | Seitz, Comegys & Seitz | Wichita Falls, TX 76307 | Oil & Gas Operator | Oct 1994 |
| 26445 | Seitz, J. R. & Adam | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2008 |
| 26446 | Seitz, J. R. & Adam, LTD. | Wichita Falls, TX 76307 | Oil Operator | Jun 2025 |
| 26447 | Sek Energy, LLC | Benedict, KS 66714 | Oil & Gas Operator | Feb 2025 |
| 26448 | Sek Oil Incorpor | | Oil Operator | Jun 1985 |
| 26449 | Selby Larry Monroe | Bartlesville, OK 74006 | Oil & Gas Operator | Apr 2020 |
| 26450 | Selco Oil And Gas Inc | Alamo, CA 94507 | Oil & Gas Operator | Feb 2025 |
| 26451 | Select Energy Investments Inc | Solon, OH 44139 | Oil & Gas Operator | Dec 2019 |
| 26452 | Select Exploration Group LLC | Eufaula, OK 74432 | Oil & Gas Operator | May 2024 |
| 26453 | Select Operating Company Inc | Dallas, TX 75225 | Oil & Gas Operator | Mar 2014 |
| 26454 | Select Water Solutions, LLC | Gainesville, TX 76240 | Oil Operator | Mar 2025 |
| 26455 | Self Brothers | Montague, TX 76251 | Oil & Gas Operator | Jun 2025 |
| 26456 | Self, Charles D. | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2016 |
| 26457 | Self, Charles Lynn | Jacksboro, TX 76458 | Oil & Gas Operator | Jun 2025 |
| 26458 | Sell Drilling LLC | | Oil Operator | Feb 2011 |
| 26459 | Sell Well Servicing Company Osage Only | | Oil & Gas Operator | Nov 2019 |
| 26460 | Sell, David E | | Oil Operator | Mar 2025 |
| 26461 | Sellers Donald J | Depew, OK 74028-2442 | Oil Operator | Jan 2013 |
| 26462 | Sellers Jack B Estate Of | Cleveland, OK 74020 | Oil & Gas Operator | Mar 2025 |
| 26463 | Sellers Lease Service, Inc. | Flatonia, TX 78941 | Oil & Gas Operator | Jun 2025 |
| 26464 | Sellers Mark A | Drumright, OK 74030 | Oil & Gas Operator | Mar 2020 |
| 26465 | Sellers O N | Henryetta, OK 74437 | Oil & Gas Operator | May 1997 |
| 26466 | Sellers&Fulton Oil LLC | Artesia, NM 88210 | Oil & Gas Operator | Jun 2021 |
| 26467 | Sellers' Lease Service | Flatonia, TX 78941 | Oil & Gas Operator | Jul 1994 |
| 26468 | Sellmeyer Eugene | Collinsville, OK 74021 | Oil & Gas Operator | Mar 2015 |
| 26469 | Sellmeyer Frank | San Rafael, CA 94901-1339 | Oil Operator | Dec 2014 |
| 26470 | Selous Energy, LLC | Fort Worth, TX 76109 | Oil & Gas Operator | Jul 2015 |
| 26471 | Sem Operating Company LLC | Houston, TX 77042 | Oil & Gas Operator | Jun 2025 |
| 26472 | Semgas Gathering LLC | Tulsa, OK 74136 | Gas Operator | Jul 2009 |
| 26473 | Seminole Company (The) | | Oil Operator | Dec 1994 |
| 26474 | Seminole Oil Productions LLC | Surprise, AZ 85387-2015 | Oil Operator | Apr 2020 |
| 26475 | Seminole Production Co. | Silsbee, TX 77656 | Oil & Gas Operator | Oct 2002 |
| 26476 | Seminole Senora Sand Unit #1, LLC | Rogers, AR 72758 | Gas Operator | Sep 2010 |
| 26477 | Seminole Tank Service | Seminole, OK 74818-1587 | Oil & Gas Operator | Mar 2025 |
| 26478 | Semo, Inc. | | Oil & Gas Operator | Feb 2002 |
| 26479 | Semper Fidelis Oil & Gas, LLC | Allen, TX 75013 | Oil & Gas Operator | Apr 2013 |
| 26480 | Senax Inc | Tulsa, OK 74105-2206 | Oil & Gas Operator | Mar 2025 |
| 26481 | Sendero Energy Inc. | Dallas, TX 75205 | Oil & Gas Operator | Jun 2025 |
| 26482 | Sendero Resources LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2025 |
| 26483 | Seneca Energy Corporation | Dover, OH 44622 | Oil & Gas Operator | Dec 2020 |
| 26484 | Seneca Exploration, LLC | Wichita Falls, TX 76308 | Oil Operator | Jun 2025 |
| 26485 | Seneca Oil Company | Tulsa, OK 74121-1518 | Oil & Gas Operator | Jan 2015 |
| 26486 | Seneca Resources Co LLC | Cranberry Township, PA 16066 | Oil & Gas Operator | Apr 2025 |
| 26487 | Seneca Resources Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2017 |
| 26488 | Seneca Stone Corporation | Seneca Falls, NY 13148 | Gas Operator | Dec 2023 |
| 26489 | Seneca Western Minerals Corp. | | Oil & Gas Operator | Dec 2009 |
| 26490 | Seneca-Cashco | | Oil & Gas Operator | Sep 1986 |
| 26491 | Senico Production Company | Irving, TX 75016-5229 | Oil & Gas Operator | Mar 2002 |
| 26492 | Senior Drilling & Expl Co Inc. | | Oil & Gas Operator | Apr 1993 |
| 26493 | Senior G&A Operating Co Inc | | Oil & Gas Operator | Nov 1991 |
| 26494 | Senkel, Wesley, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2007 |
| 26495 | Senora Resources, Inc. | Dime Box, TX 77853 | Oil & Gas Operator | Jun 2025 |
| 26496 | Senske, Richard S. | Ashville, NY 14710 | Gas Operator | Dec 2023 |
| 26497 | Sensor Oil & Gas Inc | Duncan, OK 73534 | Oil & Gas Operator | May 2013 |
| 26498 | Sentinel Peak Resources California LLC | | Oil & Gas Operator | Apr 2025 |
| 26499 | Sentinel Petroleum Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2020 |
| 26500 | Sentry Exploration, Inc. | Houston, TX 77006 | Oil & Gas Operator | Jun 2025 |