| 27501 | Stoney Lake Production Co LLC | | Oil Operator | Aug 2025 |
| 27502 | Storch, Diane F. | Attica, NY 14011 | Gas Operator | Dec 2024 |
| 27503 | Storck Omer | Tulsa, OK 74105 | Oil Operator | Apr 1997 |
| 27504 | Storm Burchett Dba Storm Resources, LLC | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 27505 | Storm Cat Energy USA Operating Corp | Denver, CO 80202 | Gas Operator | Jun 2017 |
| 27506 | Storm Exploration Inc | Skiatook, OK 74070-1014 | Oil & Gas Operator | Jan 2013 |
| 27507 | Storm Industries | | Oil & Gas Operator | Dec 1988 |
| 27508 | Storm Oil | Burkburnett, TX 76354 | Oil & Gas Operator | Apr 2026 |
| 27509 | Storm Peak Energy, LLC | Midland, TX 79702 | Oil & Gas Operator | May 2012 |
| 27510 | Story NRG LLC | Boerne, TX 78006 | Oil & Gas Operator | Apr 2026 |
| 27511 | Story Oil And Gas Inc | Magnolia, AR 71753 | Oil & Gas Operator | Jan 2025 |
| 27512 | Stoskopf, Wayne | Hoisington, KS 67544 | Oil Operator | Apr 1995 |
| 27513 | Stotts-Kirkpatri | | Oil Operator | Oct 1991 |
| 27514 | Stouder DRLG Co | | Oil & Gas Operator | Dec 2024 |
| 27515 | Stoudt, Jean Marie | Broken Arrow, OK 74011 | Oil Operator | May 2025 |
| 27516 | Stout Consulting Services, Inc. | Alice, TX 78333 | Oil & Gas Operator | May 1999 |
| 27517 | Stout Energy Inc. | Midland, TX 79708 | Oil & Gas Operator | Apr 2026 |
| 27518 | Stovall Oil Company | Casper, WY 82602 | Oil & Gas Operator | Aug 1998 |
| 27519 | Stovall Operating Co. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 27520 | Stovall, Howard | Cisco, TX 76437 | Oil & Gas Operator | Apr 2026 |
| 27521 | Stovall, Troy | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 27522 | Stover Company | Tulsa, OK 74152-0786 | Oil & Gas Operator | Jan 2013 |
| 27523 | Stover Oil Company | Konawa, OK 74849-0216 | Oil & Gas Operator | Jul 2002 |
| 27524 | Stover Petroleum Inc | | Oil & Gas Operator | Mar 1990 |
| 27525 | Stowe Energy, Inc. | Vernon, TX 76384 | Oil & Gas Operator | Mar 2003 |
| 27526 | Stowe Killingsworth | | Oil & Gas Operator | Apr 2023 |
| 27527 | Stowell, Cindy M. | Perry, NY 14530 | Gas Operator | Dec 2024 |
| 27528 | Stowers Energy, LLC | Celebration, FL 34747 | Oil & Gas Operator | Dec 2021 |
| 27529 | STP Cherokee Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2014 |
| 27530 | STP Newco Inc | Oklahoma City, OK 73102-5641 | Oil & Gas Operator | Jul 2021 |
| 27531 | Strabala Joseph | | Oil Operator | Jan 1992 |
| 27532 | Strachan Exploration Inc | Englewood, CO 80112 | Oil & Gas Operator | Dec 2025 |
| 27533 | Strago Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Aug 1994 |
| 27534 | Strahan Oil & Gas Co., Inc. | | Gas Operator | Oct 1983 |
| 27535 | Strait F W Incor | | Oil Operator | Jan 1992 |
| 27536 | Strand Energy, Inc. (I) | Houston, TX 77002 | Oil & Gas Operator | Sep 1996 |
| 27537 | Strand Energy, L.C. | Houston, TX 77002 | Oil & Gas Operator | Apr 2026 |
| 27538 | Strand, Carlton Oil | Stamford, TX 79553 | Oil & Gas Operator | May 1997 |
| 27539 | Strange, D. D. | Archer City, TX 76351 | Oil & Gas Operator | Sep 2014 |
| 27540 | Strange, Joyce Marital Trust | Holliday, TX 76366 | Oil Operator | May 2008 |
| 27541 | Strat Land Exploration Company | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2025 |
| 27542 | Strata Energy Re | | Oil Operator | Nov 1987 |
| 27543 | Strata Energy, Inc. | | Oil & Gas Operator | Sep 1983 |
| 27544 | Strata Exploration, Inc. | Fairfield, IL 62837 | Oil & Gas Operator | Dec 2025 |
| 27545 | Strata Oil Corporation | Carmi, IL 62821 | Oil & Gas Operator | Jan 2002 |
| 27546 | Strata Oil Incor | | Oil Operator | Mar 1994 |
| 27547 | Strata Operating, Inc. | Corpus Chrsti, TX 78466 | Oil & Gas Operator | Apr 2026 |
| 27548 | Strata Petroleum Co. | Midland, TX 79701 | Oil & Gas Operator | May 1997 |
| 27549 | Strata Petroleum Inc | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2019 |
| 27550 | Strata Production Co | Roswell, NM 882021030 | Oil & Gas Operator | Jan 2026 |
| 27551 | Strata Star Petroleum Corp. | Uvalde, TX 78801 | Oil Operator | Apr 2026 |
| 27552 | Strata Tech Services, Inc | Rowlett, TX 75088 | Oil Operator | Dec 2019 |
| 27553 | Strata-X Inc. | | Oil & Gas Operator | Dec 2025 |
| 27554 | Strataform, Inc. | | Gas Operator | Jun 2002 |
| 27555 | Stratagas, Inc. | Rowlett, TX 75088 | Oil & Gas Operator | May 2006 |
| 27556 | Stratakan Exploration, LLC | Plainville, KS 67663 | Oil & Gas Operator | Dec 2025 |
| 27557 | Stratco Operating Co Inc | Austin, TX 78701 | Oil & Gas Operator | Apr 2026 |
| 27558 | Stratco, Inc. | Edmond, OK 73013 | Oil & Gas Operator | Mar 2015 |
| 27559 | Strategic Well Holdings, Inc. | | Oil & Gas Operator | Dec 2020 |
| 27560 | Strategy Operating, LLC | Midland, TX 79710 | Gas Operator | Apr 2026 |
| 27561 | Stratex Oil & Gas Holdings, Inc. | Watertown, CT 06795 | Oil Operator | Jun 2015 |
| 27562 | Stratex Oil And Gas, Inc. | Watertown, CT 06795 | Oil & Gas Operator | Jun 2016 |
| 27563 | Stratford Well Service Inc | Pond Creek, OK 73766-0310 | Oil Operator | Nov 2003 |
| 27564 | Stratlynn, Inc. | Conroe, TX 77305 | Oil & Gas Operator | Mar 2008 |
| 27565 | Strawn DRLG. Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2005 |
| 27566 | Strawn Energy Services, LLC | Lubbock, TX 79424 | Oil Operator | Apr 2026 |
| 27567 | Strawn Operating Co., L.L.C. | El Paso, TX 79912 | Oil Operator | Apr 2026 |
| 27568 | Strawn Partners Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 27569 | Strawn Petroleum Operating, LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2026 |
| 27570 | Stray Oil Company | Burkburnett, TX 76354 | Oil & Gas Operator | Aug 2008 |
| 27571 | Stray Oil Company, LLC | Burkburnett, TX 76354 | Oil Operator | Nov 2017 |
| 27572 | Stream Energy, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2025 |
| 27573 | Streamline Energy, LLC | Yates Center, KS 66783 | Oil & Gas Operator | Dec 2019 |
| 27574 | Streamline Oil And Gas Inc | Lindsay, OK 73052 | Oil & Gas Operator | Jan 2026 |
| 27575 | Strebor Oil Co. | Dallas, TX 75225 | Oil & Gas Operator | Jun 1993 |
| 27576 | Street, Spencer B., Jr. | Graham, TX 76450 | Oil & Gas Operator | Mar 1998 |
| 27577 | Streetman Inc | | Oil Operator | Oct 1987 |
| 27578 | Stricker Resources Inc | Morris, OK 74445 | Oil & Gas Operator | Dec 2025 |
| 27579 | Strickland, H.W. | Henrietta, TX 76365 | Oil & Gas Operator | Dec 1999 |
| 27580 | Strickler Emory | New Concord, OH 43762 | Oil & Gas Operator | Dec 2013 |
| 27581 | Stride Energy LLC | Piedmont, OK 73078 | Oil & Gas Operator | Jan 2026 |
| 27582 | Stright Roger | Amesville, OH 45711 | Oil & Gas Operator | Dec 2016 |
| 27583 | Strike Axe Oil And Gas Corporation | | Oil & Gas Operator | Mar 2021 |
| 27584 | Strike Energy Corporation | Blackwell, OK 74631 | Oil & Gas Operator | Jul 2023 |
| 27585 | Strike Energy LLC | Ardmore, OK 73401 | Oil Operator | Dec 2025 |
| 27586 | Strike Too Oil | Albany, TX 76430 | Oil Operator | Apr 2026 |
| 27587 | Striker Management Co LLC | Shawnee, OK 74801 | Oil & Gas Operator | Dec 2025 |
| 27588 | Striker Petroleum Corporation | Englewood, CO 80111 | Oil & Gas Operator | Dec 1999 |
| 27589 | Striker Petroleum Operations LLC | Frisco, TX 75034-2127 | Oil & Gas Operator | Nov 2014 |
| 27590 | Striker Robert E | Rogers, OH 44455 | Oil & Gas Operator | Dec 2025 |
| 27591 | Stringer E M | | Oil Operator | May 1996 |
| 27592 | Stringer Oil & Gas Co., Inc. | San Angelo, TX 76902 | Oil & Gas Operator | Oct 1996 |
| 27593 | Striper Oil, Inc. | Dallas, TX 75379 | Oil & Gas Operator | Apr 2002 |
| 27594 | Stripper Oil Com | | Oil Operator | Nov 1996 |
| 27595 | Stripper Oil Company Inc | | Oil Operator | Nov 2025 |
| 27596 | Strippit, Inc. | Akron, NY 14001 | Gas Operator | Dec 2024 |
| 27597 | Stroke Of Luck Energy & Exploration LLC | Cassoday, KS 66842 | Oil Operator | Sep 2021 |
| 27598 | Stromquist C Dal | | Oil & Gas Operator | Aug 1991 |
| 27599 | Stromquist, C. Dale, A General Partnership | Liberal, KS 67901 | Oil & Gas Operator | Aug 2010 |
| 27600 | Strong Rock Operating Company, LLC | | Oil & Gas Operator | Jan 2026 |