| 28401 | Sovereign Eagle, LLC | Roswell, NM 88202 | Oil & Gas Operator | Jul 2018 |
| 28402 | Sovereign Energy Corp. | | Oil Operator | Dec 2001 |
| 28403 | Sovereign Operating Company, LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2016 |
| 28404 | Sovereign Petroleum Company, LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Jul 2013 |
| 28405 | Sowers William & Sara | Blue Rock, OH 43720 | Oil Operator | Dec 2022 |
| 28406 | Sowle Exploratio | | Oil Operator | Aug 1986 |
| 28407 | Sowle Explorations | | Oil Operator | Dec 2002 |
| 28408 | Soxgi LLC | Andrews, TX 79714 | Gas Operator | Dec 2025 |
| 28409 | Sozo Natural Resources LLC | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 28410 | SP Energy Development Company | Seattle, WA 98101-3277 | Oil & Gas Operator | Mar 2015 |
| 28411 | Space Production Inc. | Monahans, TX 79756 | Oil & Gas Operator | Feb 2026 |
| 28412 | Spacht, James W. & Shelly F | Ripley, NY 14775 | Gas Operator | Dec 2024 |
| 28413 | Spade Energy L.L.C. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 28414 | Spahn Keith H | Butler, PA 16002-9176 | Oil & Gas Operator | Dec 2018 |
| 28415 | Spain Oil Company | Somerset, TX 78069 | Oil & Gas Operator | Feb 2026 |
| 28416 | Spain, Mack | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 1996 |
| 28417 | Spalding Energy, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Feb 2026 |
| 28418 | Spalsbury, Arthur L | Hays, KS 67601 | Oil Operator | Aug 2001 |
| 28419 | Spark'S Energy Inc | Perry, OK 73077 | Oil & Gas Operator | Nov 2014 |
| 28420 | Sparkman Rodger E | Jenks, OK 74037-0267 | Oil Operator | Sep 2018 |
| 28421 | Sparks Daniel M | Chickasha, OK 73023-1435 | Oil & Gas Operator | Apr 2014 |
| 28422 | Sparks Greg | Afton, OK 74331 | Oil & Gas Operator | Nov 2025 |
| 28423 | Sparks Harold | Radnor, OH 43066 | Oil & Gas Operator | Dec 1987 |
| 28424 | Sparks Mick Oil Company Inc | Jennings, OK 74038-0250 | Oil & Gas Operator | Dec 2025 |
| 28425 | Sparks Petroleum Company | Oklahoma City, OK 73128 | Oil & Gas Operator | Mar 1998 |
| 28426 | Sparks Resources Inc | Bristow, OK 74010 | Oil & Gas Operator | Dec 2025 |
| 28427 | Sparks, Pearlman E | Mazie, KY 41160 | Oil Operator | Dec 2015 |
| 28428 | Sparks, Sidney A., Trustee | Alice, TX 78332 | Oil & Gas Operator | Jun 1996 |
| 28429 | Sparlin J L | Oklahoma City, OK 73156-1446 | Oil Operator | Oct 2025 |
| 28430 | Sparrow Oil & Gas LLC | | Oil & Gas Operator | Jan 2026 |
| 28431 | Sparrow Operating LLC | Comanche, OK 73529-9747 | Oil Operator | Nov 2025 |
| 28432 | Sparta Energy Corp | Oak Brook, IL 60521 | Oil & Gas Operator | Dec 1985 |
| 28433 | Sparta Exploration LLC | Houston, TX 77279 | Oil & Gas Operator | Feb 2026 |
| 28434 | Spartagus Corporation | Grand Saline, TX 75140 | Oil & Gas Operator | Sep 2004 |
| 28435 | Spartan Oil Corporation | Abilene, TX 79601 | Oil & Gas Operator | Aug 2003 |
| 28436 | Spartan Operating Company, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Feb 2013 |
| 28437 | Spartan Petroleum Corporation | Houston, TX 77079 | Oil & Gas Operator | Oct 1987 |
| 28438 | Spartan Resource MGMT Corp | Rural Valley, PA 16249-0326 | Gas Operator | Dec 2024 |
| 28439 | Spartan Resources LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Dec 2025 |
| 28440 | Spartan Royalties, LLC | | Oil Operator | Dec 2024 |
| 28441 | Spartywood Prod Inc | Spartansburg, PA 16434-1627 | Gas Operator | Dec 2015 |
| 28442 | SPC Resources, LLC | Midland, TX 79701 | Oil & Gas Operator | Feb 2024 |
| 28443 | Spear Production Company, Inc. | Shreveport, LA 71161 | Oil Operator | Feb 2026 |
| 28444 | Spearco Oil | Electra, TX 76360 | Oil & Gas Operator | Aug 2003 |
| 28445 | Spearpoint Energy LLC | Seminole, OK 74818-1247 | Oil Operator | Jun 2015 |
| 28446 | Spears Terry | Osage, OK 74054 | Oil Operator | Oct 2025 |
| 28447 | Speartex Grain Company | Gruver, TX 79040 | Oil & Gas Operator | Feb 2026 |
| 28448 | Speartip Energy, LLC | Katy, TX 77450 | Oil Operator | Feb 2026 |
| 28449 | Specht Farms | Piqua, KS 66761 | Oil Operator | Nov 2009 |
| 28450 | Specht Oil | Iola, KS 66749 | Oil Operator | Mar 1998 |
| 28451 | Special Energy Corp. | Stillwater, OK 74076 | Oil & Gas Operator | Feb 2026 |
| 28452 | Special JHR Corp | Bridgeville, PA 15017 | Oil & Gas Operator | Feb 2026 |
| 28453 | Specialized Technological Threading, Inc., | | Oil & Gas Operator | Oct 2019 |
| 28454 | Speckle Trout Operating LLC | Houston, TX 77092 | Oil Operator | Feb 2026 |
| 28455 | Speco Oil Company | | Oil & Gas Operator | Feb 1980 |
| 28456 | Spectral Oil & Gas Corporation | Humble, TX 77338 | Oil Operator | Feb 2026 |
| 28457 | Spectrum Energy Inc | Scottsdale, AZ 85257 | Oil & Gas Operator | Oct 2003 |
| 28458 | Spectrum Field Services Inc | Tulsa, OK 74136-3400 | Oil & Gas Operator | Jan 2004 |
| 28459 | Spectrum Oil Company | Irving, TX 75063 | Oil & Gas Operator | May 2013 |
| 28460 | Spectrum Oil Corporation | Marietta, OH 45750 | Oil & Gas Operator | Dec 1993 |
| 28461 | Spectrum Opco LLC | | Oil & Gas Operator | Nov 2024 |
| 28462 | Speed James F | Ada, OK 74821-1221 | Oil & Gas Operator | Nov 2009 |
| 28463 | Speed, F. Michael, Trustee | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Aug 1998 |
| 28464 | Speedy Well Service | | Oil & Gas Operator | Aug 2025 |
| 28465 | Speegle Oil And Gas Company | Longview, TX 75605 | Oil & Gas Operator | Feb 2026 |
| 28466 | Speer Kenneth G | Seminole, OK 74818-1202 | Oil & Gas Operator | Dec 2001 |
| 28467 | Speir R M Operating Company | Walters, OK 73572-3933 | Oil Operator | Nov 2025 |
| 28468 | Spellbound Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2025 |
| 28469 | Speller Oil Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 2025 |
| 28470 | Spence Energy Company | Dallas, TX 75360 | Oil & Gas Operator | Feb 2026 |
| 28471 | Spence, Ralph Oil Company, Inc. | Tyler, TX 75701 | Oil & Gas Operator | Jun 2023 |
| 28472 | Spencer Enterprises Dba Hugh Spencer | Smithburg, WV 26436-0000 | Oil & Gas Operator | Dec 2021 |
| 28473 | Spencer Oil Company | Borger, TX 79007 | Oil & Gas Operator | Nov 2025 |
| 28474 | Spencer Oil Company LLC | Bartlesville, OK 74006 | Oil Operator | Jan 2015 |
| 28475 | Spencer Petroleum Corp | Akron, OH 44319 | Oil & Gas Operator | Dec 2000 |
| 28476 | Spencer Resources Inc | Richmond, VA 23225 | Oil & Gas Operator | Dec 1993 |
| 28477 | Spencer-Cloughly Investments Inc | San Marcos, TX 78666 | Oil & Gas Operator | Aug 2002 |
| 28478 | Spenergy Corp. | Midland, TX 79701 | Oil & Gas Operator | Dec 1999 |
| 28479 | Sperry R J | Dallas, TX 75254-8647 | Oil & Gas Operator | Aug 2013 |
| 28480 | Spess Oil Company Inc | Cleveland, OK 74020-4617 | Oil & Gas Operator | Dec 2025 |
| 28481 | Spess Oil Company, A General Partnership | Cleveland, OK 74020 | Oil & Gas Operator | Sep 2025 |
| 28482 | SPH Development, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Nov 2022 |
| 28483 | Spheric Petroleum Inc. | Baltimore, MD 21208 | Oil & Gas Operator | Nov 2006 |
| 28484 | Spi Operations LLC | Midland, TX 79710 | Oil & Gas Operator | Jan 2013 |
| 28485 | Spicer Oil Company, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2008 |
| 28486 | Spicewood Operating Company, LLC | Austin, TX 78746 | Oil & Gas Operator | Feb 2026 |
| 28487 | Spicknall Enterprises | Amarillo, TX 79124 | Oil & Gas Operator | May 1998 |
| 28488 | Spicy Daugx Operators Louisiana LLC | | Oil & Gas Operator | Nov 2024 |
| 28489 | Spike, David C. And Arlene M. | Bloomfield, NY 14469 | Gas Operator | Dec 2024 |
| 28490 | Spikes Gas & Oil | | Gas Operator | Mar 1994 |
| 28491 | Spikes, Gary E. | Garden City, KS 67846 | Gas Operator | Mar 2013 |
| 28492 | Spikes, Harry | Henrietta, TX 76365 | Oil & Gas Operator | Sep 2000 |
| 28493 | Spiller Oil & Gas Company | Jacksboro, TX 76458 | Oil Operator | Feb 2026 |
| 28494 | Spiller Operating Co., Inc. | Round Rock, TX 78665 | Oil & Gas Operator | May 2015 |
| 28495 | Spiller, H. G. | San Antonio, TX 78213 | Oil & Gas Operator | Oct 1993 |
| 28496 | Spiller, J. A. Company | Austin, TX 78735 | Oil & Gas Operator | Jan 2016 |
| 28497 | Spiller, J.A. | Austin, TX 78735 | Oil & Gas Operator | Jan 2016 |
| 28498 | Spiller, Joseph A. | Austin, TX 78746 | Oil & Gas Operator | Oct 1993 |
| 28499 | Spiller, Robert S. | San Antonio, TX 78213 | Oil & Gas Operator | Oct 1995 |
| 28500 | Spillers Petroleum, Inc. | | Gas Operator | Mar 2010 |