| 27401 | Stewart Morris E Oil Company | Oklahoma City, OK 73132 | Oil & Gas Operator | Jan 2013 |
| 27402 | Stewart Morris E Operating Co LLC | Oklahoma City, OK 73172-0600 | Oil & Gas Operator | Jul 2008 |
| 27403 | Stewart Oil & Gas | Stephenville, TX 76401 | Gas Operator | Apr 2026 |
| 27404 | Stewart Oil & Gas Investments Inc | Porum, OK 74455 | Gas Operator | Jan 2026 |
| 27405 | Stewart Oil Co. | | Oil Operator | Jun 2009 |
| 27406 | Stewart Oil Comp | | Oil Operator | Jul 1993 |
| 27407 | Stewart Operating | | Oil Operator | Jul 2019 |
| 27408 | Stewart Petroleum Corporation | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Dec 2023 |
| 27409 | Stewart Producers | Lancaster, OH 43130 | Oil & Gas Operator | Dec 1984 |
| 27410 | Stewart Producers, Inc. | Mount Vernon, IL 62864 | Oil & Gas Operator | Dec 2025 |
| 27411 | Stewart W C Oil | | Oil Operator | Jun 1986 |
| 27412 | Stewart, James G. | Graham, TX 76450 | Oil & Gas Operator | Sep 2019 |
| 27413 | Stewart, William C. | Amarillo, TX 79105 | Gas Operator | May 2003 |
| 27414 | Stice Oil Company | | Oil Operator | Nov 2025 |
| 27415 | Stich Oil Company, A General Partnership | Chanute, KS 66720 | Oil Operator | Jul 2014 |
| 27416 | Stickney Oil & Gas, Inc. | Midland, TX 79704 | Oil & Gas Operator | Nov 2014 |
| 27417 | Stickney, F. C., Inc. | Midland, TX 79704 | Oil & Gas Operator | Oct 1998 |
| 27418 | Stidham Bob And Alice F | Sperry, OK 74073 | Oil Operator | Dec 2025 |
| 27419 | Stifter, Ralph E | Rantoul, KS 66079 | Oil Operator | Sep 2001 |
| 27420 | Stiglitz Raymond J | Franklin, PA 16323-7760 | Oil & Gas Operator | Dec 2013 |
| 27421 | Stiles, Carl W. | West Valley, NY 14171 | Gas Operator | Dec 2024 |
| 27422 | Still A B Wel-Service Inc | Drumright, OK 74030-0787 | Oil & Gas Operator | Jul 2019 |
| 27423 | Still Alex B Estate Of | Sagle, ID 83860-0644 | Oil & Gas Operator | Nov 2018 |
| 27424 | Stillwater Oil & Gas | Irving, TX 75062 | Oil & Gas Operator | Mar 2015 |
| 27425 | Stillwater Petroleum Company | College Sta, TX 77845 | Oil & Gas Operator | Nov 1997 |
| 27426 | Stine Massie Oil, LLC | Mansfield, TX 76063 | Oil Operator | Jul 2025 |
| 27427 | Stine Oil Company | Mansfield, TX 76063 | Oil Operator | Mar 2016 |
| 27428 | Stine, Ward L.Oil Company | Windthorst, TX 76389 | Oil & Gas Operator | Oct 1999 |
| 27429 | Stine-Hawkins | Mansfield, TX 76063 | Gas Operator | Apr 2026 |
| 27430 | Sting Exploration Company | Tulsa, OK 74120 | Oil Operator | Sep 2004 |
| 27431 | Stinger Oil & Gas Inc. | Sherman Oaks, CA 91403 | Oil & Gas Operator | Oct 2013 |
| 27432 | Stingray Oil Company, Inc. | Mullin, TX 76864 | Oil Operator | Apr 2026 |
| 27433 | Stinhall Corporation | | Oil & Gas Operator | Apr 1989 |
| 27434 | Stinnett Oil Company | | Oil Operator | Dec 1997 |
| 27435 | Stinson Gas Company, L.L.C. | | Gas Operator | Jul 2018 |
| 27436 | Stinson, Ernest Dba Logsdon Valley Oil | Horse Cave, KY 42749 | Oil Operator | Dec 2021 |
| 27437 | Stinson, Jan | | Oil Operator | May 1984 |
| 27438 | Stivers Inc | Graham, TX 76450 | Oil & Gas Operator | May 2003 |
| 27439 | Stivers Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 1995 |
| 27440 | Stiverson, R G Co, Inc | | Oil Operator | Dec 2011 |
| 27441 | Stixon Petroleum | | Oil Operator | Dec 1996 |
| 27442 | STL Oil & Gas LLC | Skiatook, OK 74070 | Oil & Gas Operator | Mar 2016 |
| 27443 | STL Resources LLC | Sewickley, PA 15143-8859 | Gas Operator | Jan 2026 |
| 27444 | Sto Operating Company | San Antonio, TX 78258 | Oil & Gas Operator | Apr 2026 |
| 27445 | Stobaugh G B Trust | Oklahoma City, OK 73124 | Oil Operator | Aug 2025 |
| 27446 | Stober Oil And Gas Services, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2026 |
| 27447 | Stockdale Energy Co. | | Gas Operator | Dec 1992 |
| 27448 | Stockdale Oil & Gas Inc. | | Oil & Gas Operator | Dec 2001 |
| 27449 | Stocker & Sitler Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 2002 |
| 27450 | Stockyard Energy Partners, LLC | Calumet, OK 73014 | Oil Operator | Dec 2025 |
| 27451 | Stoeppelwerth DR | | Oil Operator | May 1993 |
| 27452 | Stokes Donna L | Blanchard, OK 73010 | Oil & Gas Operator | Jun 2023 |
| 27453 | Stoll, James G | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 27454 | Stoltz, Deane H. | Midland, TX 79710 | Oil & Gas Operator | Oct 2000 |
| 27455 | Stone & Webster Oil Company, Inc | Houston, TX 77002 | Oil & Gas Operator | Dec 1995 |
| 27456 | Stone & Williams Oil&Gas Co.,Inc | Holliday, TX 76366 | Oil Operator | Apr 2013 |
| 27457 | Stone & Wolf LLC | Sheridan, WY 82801 | Oil & Gas Operator | Dec 2006 |
| 27458 | Stone Cabin Resources LLC | | Oil & Gas Operator | Dec 2025 |
| 27459 | Stone Creek Brick Co | Stone Creek, OH 43840 | Oil & Gas Operator | Dec 2004 |
| 27460 | Stone Creek Operating, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Apr 2026 |
| 27461 | Stone Edge Energy, LLC | El Campo, TX 77437 | Oil & Gas Operator | Apr 2026 |
| 27462 | Stone Energy Corporation | Denver, CO 80202-2828 | Oil & Gas Operator | Oct 2014 |
| 27463 | Stone Energy LLC | Denver, CO 80202 | Oil & Gas Operator | May 2005 |
| 27464 | Stone Mountain Petroleum, LLC | Houston, TX 77008 | Oil & Gas Operator | Aug 2002 |
| 27465 | Stone Oak Operating LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Dec 2025 |
| 27466 | Stone Oil Compan | | Oil Operator | Jan 1990 |
| 27467 | Stone Oil Corp & McMoran Expl | | Oil & Gas Operator | Oct 1984 |
| 27468 | Stone Oil Corp - Strata Energy | | Oil & Gas Operator | Mar 1982 |
| 27469 | Stone Oil Corp-Forest Oil Corp | | Oil & Gas Operator | Jan 1983 |
| 27470 | Stone Oil-Lamson-Onshore Pet. | | Oil & Gas Operator | May 1985 |
| 27471 | Stone Oil-Quasar-Birthright | | Oil & Gas Operator | Feb 1981 |
| 27472 | Stone Petroleum Corporation | | Oil & Gas Operator | Dec 1996 |
| 27473 | Stone Ridge Energy LLC | Uniontown, PA 15401-6831 | Oil & Gas Operator | Jan 2026 |
| 27474 | Stone River Energy Corp | Edmond, OK 73034 | Oil & Gas Operator | Jan 2014 |
| 27475 | Stone Thomas R | Coweta, OK 74429-3293 | Oil & Gas Operator | Mar 2020 |
| 27476 | Stone, B. W. | Holliday, TX 76366 | Oil & Gas Operator | Feb 2012 |
| 27477 | Stone, D J | Palo Alto, CA 94301 | Oil & Gas Operator | Sep 1985 |
| 27478 | Stone, Gregory W. | Holliday, TX 76366 | Oil & Gas Operator | Apr 2026 |
| 27479 | Stone, J. G. Oil Co. | Victoria, TX 77904 | Oil & Gas Operator | Sep 2018 |
| 27480 | Stone, M. L. | Kerrville, TX 78029 | Oil & Gas Operator | Aug 2003 |
| 27481 | Stonebriar Oil LLC | Frisco, TX 75034 | Oil & Gas Operator | Apr 2026 |
| 27482 | Stonebriar Operating, LLC | Plano, TX 75093 | Oil Operator | Apr 2026 |
| 27483 | Stonebridge Operating Co LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 27484 | Stoneburner Exploration, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Oct 1997 |
| 27485 | Stonegate Operators, Inc. | Addison, TX 75001 | Oil Operator | Apr 2026 |
| 27486 | Stonegate Production Company,LLC | Houston, TX 77024 | Oil & Gas Operator | Apr 2026 |
| 27487 | Stonegate Ranch LLC | Caney, KS 67333 | Oil Operator | Dec 2025 |
| 27488 | Stoneham Oil Company | Houston, TX 77002 | Oil & Gas Operator | Sep 1995 |
| 27489 | Stoneham Production LLC | | Oil & Gas Operator | Jan 2026 |
| 27490 | Stonehaven Energy MGT Co LLC | Clearfield, PA 16830-7342 | Oil & Gas Operator | Dec 2019 |
| 27491 | Stoner Oil | Corsicana, TX 75109 | Oil Operator | Apr 2026 |
| 27492 | Stoner, C. M. | Cleburne, TX 76031 | Oil & Gas Operator | Oct 1996 |
| 27493 | Stoneridge Oil Inc | Ponca City, OK 74601-1600 | Oil & Gas Operator | Jan 2001 |
| 27494 | Stoneriver Energy, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Apr 2026 |
| 27495 | Stonestreet, Vance | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2006 |
| 27496 | Stonetown Properties, LTD. | Amarillo, TX 79114 | Oil & Gas Operator | Dec 2016 |
| 27497 | Stonewall Gas Co | Jane Lew, WV 26378 | Oil & Gas Operator | Dec 1999 |
| 27498 | Stonewall Production Company Inc | Tyler, TX 75702 | Oil & Gas Operator | Aug 2009 |
| 27499 | Stoney Brook Investments | Somerset, KY 42503 | Gas Operator | Dec 2024 |
| 27500 | Stoney Creek Production LLC | | Oil Operator | Aug 2025 |