| 10401 | Summit Discovery Res II LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2019 |
| 10402 | Summit Energy, Inc. | Littleton, CO 80127 | Oil & Gas Operator | Aug 2013 |
| 10403 | Summit Exploration, L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2008 |
| 10404 | Summit Overseas Expl., Inc. | Denver, CO 80226 | Oil & Gas Operator | Apr 2007 |
| 10405 | Summit Petroleum LLC | Midland, TX 79705 | Oil & Gas Operator | May 2024 |
| 10406 | Summit Resources MGMT., LLC. | Edmond, OK 73083 | Oil & Gas Operator | May 2024 |
| 10407 | Summit Resources, Inc. | Houston, TX 77077 | Oil & Gas Operator | Sep 2016 |
| 10408 | Summitt Resources | Corsicana, TX 75110 | Oil & Gas Operator | Apr 2008 |
| 10409 | Sun Exploration, Inc. | Alice, TX 78332 | Oil & Gas Operator | May 2024 |
| 10410 | Sun Oil Company | Arlington, TX 76006 | Oil & Gas Operator | Dec 2021 |
| 10411 | Sun Resources Texas, Inc. | Longview, TX 75606 | Oil & Gas Operator | Dec 2023 |
| 10412 | Sun-Key Oil Co., Inc. | Dublin, TX 76446 | Oil & Gas Operator | May 2024 |
| 10413 | Sunbelt Salvage | Eastland, TX 76448 | Oil & Gas Operator | Sep 1998 |
| 10414 | Sunburst, Inc. | Wheat Ridge, CO 80033 | Oil & Gas Operator | Mar 2024 |
| 10415 | Suncoast Investments Co., Inc. | Plano, TX 75074 | Oil & Gas Operator | Oct 2001 |
| 10416 | Suncoast Technical Services Inc | Dallas, TX 75251 | Oil & Gas Operator | May 2024 |
| 10417 | Sundance Consulting Corp. | Abilene, TX 79605 | Oil & Gas Operator | May 2024 |
| 10418 | Sundance Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Jul 2014 |
| 10419 | Sundance Oil & Gas, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Mar 2012 |
| 10420 | Sundance Resources, Inc. | Rio VIsta, TX 76093 | Oil & Gas Operator | Mar 2012 |
| 10421 | Sunday Corporation | Olney, TX 76374 | Oil & Gas Operator | May 2024 |
| 10422 | Sundial Resources, Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2024 |
| 10423 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | May 2024 |
| 10424 | Sundown Energy, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jan 2024 |
| 10425 | Sunergon Oil Operating, LLC | Gainesville, TX 76240 | Oil Operator | May 2024 |
| 10426 | Sunland Production Company, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Mar 2024 |
| 10427 | Sunlight Exploration, Inc. | Canyon, TX 79015 | Oil & Gas Operator | May 2024 |
| 10428 | Sunray Energy, Inc. | Round Rock, TX 78683 | Oil & Gas Operator | Nov 2018 |
| 10429 | Sunray Oil Co., Inc. | Pampa, TX 79065 | Oil & Gas Operator | Jan 2013 |
| 10430 | Sunray Operating Company LLC | Sugar Land, TX 77498 | Oil & Gas Operator | May 2024 |
| 10431 | Sunray-Taylor, Inc. | Midland, TX 79701 | Oil & Gas Operator | Nov 1993 |
| 10432 | Sunrise Enterprises | Bowie, TX 76230 | Oil & Gas Operator | Dec 2016 |
| 10433 | Sunrise Oil, LTD. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2004 |
| 10434 | Sunset Energy L L C | Palm Harbor, FL 34683-3044 | Oil Operator | Dec 2007 |
| 10435 | Sunset Leases LLC | Ozona, TX 76943 | Oil Operator | May 2024 |
| 10436 | Sunstone Energy Company | Tulsa, OK 74153 | Oil & Gas Operator | Aug 2009 |
| 10437 | Sunterra Energy Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2009 |
| 10438 | Sunwest Oklahoma, Inc | Dallas, TX 75231 | Oil & Gas Operator | May 2023 |
| 10439 | Sunwest Operating Company L.L.C. | Englewood, CO 80155 | Oil & Gas Operator | Aug 2002 |
| 10440 | Suoco Oil Corporation | Pampa, TX 79066 | Oil & Gas Operator | May 2024 |
| 10441 | Supa Energy, Inc. | Shamrock, TX 79079 | Oil & Gas Operator | May 2024 |
| 10442 | Superior Royalty, LLC | Lindale, TX 75771 | Oil Operator | May 2024 |
| 10443 | Supreme Energy Company, Inc. | Abilene, TX 79601 | Oil & Gas Operator | May 2024 |
| 10444 | Sure Flow Oil & Gas Company | Victoria, TX 77902 | Oil & Gas Operator | Mar 2008 |
| 10445 | Sure Flow Oil & Gas, Inc. | Victoria, TX 77902 | Oil & Gas Operator | May 2024 |
| 10446 | Surge Operating, LLC | Houston, TX 77041 | Oil & Gas Operator | May 2024 |
| 10447 | Surge Solutions, Inc. | Iraan, TX 79744 | Oil Operator | May 2024 |
| 10448 | Susanna Corporation | Breckenridge, TX 76424 | Oil & Gas Operator | May 2024 |
| 10449 | Sutherland Energy Co., LLC | Bridgeport, TX 76426 | Oil & Gas Operator | May 2024 |
| 10450 | Sutterfield-Tisdale-Payne, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jun 1998 |
| 10451 | Sutton Oil Co. | Austin, TX 78728 | Oil & Gas Operator | May 2024 |
| 10452 | Sutton Producing Corp. | San Antonio, TX 78270 | Oil & Gas Operator | May 2024 |
| 10453 | Sutton, John E. | Toledo, OH 43616 | Oil & Gas Operator | May 2024 |
| 10454 | Sutton, Robert E., Inc. | Odessa, TX 79760 | Oil & Gas Operator | Mar 1997 |
| 10455 | SV Energy Company, LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Mar 2017 |
| 10456 | Sven Permian, LLC | Houston, TX 77057 | Oil & Gas Operator | May 2024 |
| 10457 | SW Operating, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Sep 2000 |
| 10458 | Swab Oil Co. | Midland, TX 79701 | Oil & Gas Operator | May 2024 |
| 10459 | Swan PC, LP | Jacksboro, TX 76458 | Oil & Gas Operator | May 2024 |
| 10460 | Swan Production Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2009 |
| 10461 | Swanner Properties | Wichita Falls, TX 76309 | Oil & Gas Operator | May 2024 |
| 10462 | Swanson & Vestal | Electra, TX 76360 | Oil & Gas Operator | Oct 1997 |
| 10463 | Swanson Operating, Inc. | Holliday, TX 76366 | Oil Operator | May 2024 |
| 10464 | Swanson, Tom | Electra, TX 76360 | Oil & Gas Operator | Oct 2004 |
| 10465 | Swanson, Tommy Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Mar 2017 |
| 10466 | Swaringin, Howard Operating | Maryneal, TX 79535 | Oil & Gas Operator | May 2003 |
| 10467 | Swartz Oil Company | San Angelo, TX 76906 | Oil & Gas Operator | May 2024 |
| 10468 | Swartz, Guy A. | San Angelo, TX 76904 | Oil & Gas Operator | Aug 1993 |
| 10469 | Sweet Crude Operating LLC | Brenham, TX 77834 | Oil & Gas Operator | May 2024 |
| 10470 | Sweet Texas T Energy LLC | Clyde, TX 79510 | Oil Operator | May 2024 |
| 10471 | Sweetwater Drilling Co., Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | May 2024 |
| 10472 | Sweetwater Production, Inc. | San Angelo, TX 76906 | Oil & Gas Operator | May 2024 |
| 10473 | Swenson Backhoe Service, Inc. | Electra, TX 76360 | Oil Operator | May 2024 |
| 10474 | Swenson, Clifford E. | Henrietta, TX 76365 | Oil & Gas Operator | May 2024 |
| 10475 | Swepi LP | Houston, TX 77079 | Oil & Gas Operator | Jul 2020 |
| 10476 | Swiess & Thomas | San Antonio, TX 78247 | Oil Operator | May 2024 |
| 10477 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
| 10478 | Swift Energy Operating, LLC | Houston, TX 77079 | Oil & Gas Operator | Jun 2017 |
| 10479 | SWJN Oil Company | Kilgore, TX 75663 | Oil Operator | May 2024 |
| 10480 | SWN Production Company, LLC | Spring, TX 77391 | Oil & Gas Operator | Feb 2024 |
| 10481 | Swope Corp. | Austin, TX 78735 | Oil & Gas Operator | May 2024 |
| 10482 | SWS | Humble, TX 77338 | Oil Operator | May 2024 |
| 10483 | Sydri Operating, LLC | Dallas, TX 75231 | Oil & Gas Operator | May 2024 |
| 10484 | Sydson Energy, Inc. | Houston, TX 77027 | Oil & Gas Operator | May 2024 |
| 10485 | Syj Oil & Gas | San Antonio, TX 78209 | Oil Operator | Sep 2000 |
| 10486 | Syj Oil & Gas, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | May 2024 |
| 10487 | Sylvan Energy, LLC | Pittsburgh, PA 15211 | Oil & Gas Operator | May 2024 |
| 10488 | Symank, Steve | Olney, TX 76374 | Oil & Gas Operator | May 2024 |
| 10489 | Symba American Oil, Inc | Houston, TX 77056 | Oil Operator | May 2024 |
| 10490 | Synergex Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Jan 2024 |
| 10491 | Synergy Oil & Gas, Inc. (A) | Houston, TX 77024 | Oil & Gas Operator | Aug 2001 |
| 10492 | Synergy Oil & Gas, L.P. | Houston, TX 77024 | Oil & Gas Operator | May 2012 |
| 10493 | Synergy Operating Co., LLC | Dallas, TX 75225 | Oil & Gas Operator | May 2024 |
| 10494 | Synergy Production Company | Houston, TX 77024 | Oil & Gas Operator | Jan 1996 |
| 10495 | Syntax Energy Corporation | Denton, TX 76210 | Oil Operator | May 2024 |
| 10496 | Synthetic Energy Corporation | Houston, TX 77006 | Oil Operator | May 2024 |
| 10497 | T & C Oil, Inc. | Lubbock, TX 79424 | Oil & Gas Operator | May 2024 |
| 10498 | T & D Oil | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2024 |
| 10499 | T & G Energy LLC | Dallas, TX 75230 | Oil Operator | Nov 2010 |
| 10500 | T & G Oil, Inc. | White Oak, TX 75693 | Oil & Gas Operator | Dec 2010 |