| 2501 | Stonebriar Operating, LLC | Plano, TX 75093 | Oil Operator | Feb 2026 |
| 2502 | Stonebridge Operating Co LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 2503 | Stoneburner Exploration, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Oct 1997 |
| 2504 | Stonegate Operators, Inc. | Addison, TX 75001 | Oil Operator | Feb 2026 |
| 2505 | Stonegate Production Company,LLC | Houston, TX 77024 | Oil & Gas Operator | Feb 2026 |
| 2506 | Stonegate Ranch LLC | Caney, KS 67333 | Oil Operator | Sep 2025 |
| 2507 | Stoneham Oil Company | Houston, TX 77002 | Oil & Gas Operator | Sep 1995 |
| 2508 | Stoneham Production LLC | | Oil & Gas Operator | Dec 2025 |
| 2509 | Stonehaven Energy MGT Co LLC | Clearfield, PA 16830-7342 | Oil & Gas Operator | Dec 2019 |
| 2510 | Stoner Oil | Corsicana, TX 75109 | Oil Operator | Feb 2026 |
| 2511 | Stoner, C. M. | Cleburne, TX 76031 | Oil & Gas Operator | Oct 1996 |
| 2512 | Stoneridge Oil Inc | Ponca City, OK 74601-1600 | Oil & Gas Operator | Jan 2001 |
| 2513 | Stoneriver Energy, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Feb 2026 |
| 2514 | Stonestreet, Vance | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2006 |
| 2515 | Stonetown Properties, LTD. | Amarillo, TX 79114 | Oil & Gas Operator | Dec 2016 |
| 2516 | Stonewall Gas Co | Jane Lew, WV 26378 | Oil & Gas Operator | Dec 1999 |
| 2517 | Stonewall Production Company Inc | Tyler, TX 75702 | Oil & Gas Operator | Aug 2009 |
| 2518 | Stoney Creek Production LLC | | Oil Operator | Dec 2025 |
| 2519 | Stoney Lake Production Co LLC | | Oil Operator | Dec 2025 |
| 2520 | Storch, Diane F. | Attica, NY 14011 | Gas Operator | Dec 2024 |
| 2521 | Storck Omer | Tulsa, OK 74105 | Oil Operator | Apr 1997 |
| 2522 | Storm Burchett Dba Storm Resources, LLC | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 2523 | Storm Cat Energy USA Operating Corp | Denver, CO 80202 | Gas Operator | Jun 2017 |
| 2524 | Storm Exploration Inc | Skiatook, OK 74070-1014 | Oil & Gas Operator | Jan 2013 |
| 2525 | Storm Industries | | Oil & Gas Operator | Dec 1988 |
| 2526 | Storm Oil | Burkburnett, TX 76354 | Oil & Gas Operator | Feb 2026 |
| 2527 | Storm Peak Energy, LLC | Midland, TX 79702 | Oil & Gas Operator | May 2012 |
| 2528 | Story NRG LLC | Boerne, TX 78006 | Oil & Gas Operator | Feb 2026 |
| 2529 | Story Oil And Gas Inc | Magnolia, AR 71753 | Oil & Gas Operator | Jan 2025 |
| 2530 | Stoskopf, Wayne | Hoisington, KS 67544 | Oil Operator | Apr 1995 |
| 2531 | Stotts-Kirkpatri | | Oil Operator | Oct 1991 |
| 2532 | Stoudt, Jean Marie | Broken Arrow, OK 74011 | Oil Operator | May 2025 |
| 2533 | Stout Consulting Services, Inc. | Alice, TX 78333 | Oil & Gas Operator | May 1999 |
| 2534 | Stout Energy Inc. | Midland, TX 79708 | Oil & Gas Operator | Feb 2026 |
| 2535 | Stout Energy Partners LLC | Sulphur SPGS, TX 75482 | Oil Operator | Feb 2026 |
| 2536 | Stovall Oil Company | Casper, WY 82602 | Oil & Gas Operator | Aug 1998 |
| 2537 | Stovall Operating Co. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 2538 | Stovall, Howard | Cisco, TX 76437 | Oil & Gas Operator | Feb 2026 |
| 2539 | Stovall, Troy | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 2540 | Stover Company | Tulsa, OK 74152-0786 | Oil & Gas Operator | Jan 2013 |
| 2541 | Stover Oil Company | Konawa, OK 74849-0216 | Oil & Gas Operator | Jul 2002 |
| 2542 | Stover Petroleum Inc | | Oil & Gas Operator | Mar 1990 |
| 2543 | Stowe Energy, Inc. | Vernon, TX 76384 | Oil & Gas Operator | Mar 2003 |
| 2544 | Stowe Killingsworth | | Oil & Gas Operator | Apr 2023 |
| 2545 | Stowell, Cindy M. | Perry, NY 14530 | Gas Operator | Dec 2024 |
| 2546 | Stowers Energy, LLC | Celebration, FL 34747 | Oil & Gas Operator | Dec 2021 |
| 2547 | STP Cherokee Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2014 |
| 2548 | STP Newco Inc | Oklahoma City, OK 73102-5641 | Oil & Gas Operator | Jul 2021 |
| 2549 | STP Production, LLC | Corpus Chrsti, TX 78411 | Oil & Gas Operator | Feb 2026 |
| 2550 | Strabala Joseph | | Oil Operator | Jan 1992 |
| 2551 | Strachan Exploration Inc | Englewood, CO 80112 | Oil & Gas Operator | Nov 2025 |
| 2552 | Strago Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Aug 1994 |
| 2553 | Strahan Oil & Gas Co., Inc. | | Gas Operator | Oct 1983 |
| 2554 | Strait F W Incor | | Oil Operator | Jan 1992 |
| 2555 | Strand Energy, Inc. (I) | Houston, TX 77002 | Oil & Gas Operator | Sep 1996 |
| 2556 | Strand Energy, L.C. | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 2557 | Strand, Carlton Oil | Stamford, TX 79553 | Oil & Gas Operator | May 1997 |
| 2558 | Strange, D. D. | Archer City, TX 76351 | Oil & Gas Operator | Sep 2014 |
| 2559 | Strange, Joyce Marital Trust | Holliday, TX 76366 | Oil Operator | May 2008 |
| 2560 | Strat Land Exploration Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2025 |
| 2561 | Strata Energy Re | | Oil Operator | Nov 1987 |
| 2562 | Strata Energy, Inc. | | Oil & Gas Operator | Sep 1983 |
| 2563 | Strata Exploration, Inc. | Fairfield, IL 62837 | Oil & Gas Operator | Sep 2025 |
| 2564 | Strata Oil Corporation | Carmi, IL 62821 | Oil & Gas Operator | Jan 2002 |
| 2565 | Strata Oil Incor | | Oil Operator | Mar 1994 |
| 2566 | Strata Operating, Inc. | Corpus Chrsti, TX 78466 | Oil & Gas Operator | Feb 2026 |
| 2567 | Strata Petroleum Co. | Midland, TX 79701 | Oil & Gas Operator | May 1997 |
| 2568 | Strata Petroleum Inc | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2019 |
| 2569 | Strata Production Co | Roswell, NM 882021030 | Oil & Gas Operator | Dec 2025 |
| 2570 | Strata Star Petroleum Corp. | Uvalde, TX 78801 | Oil Operator | Feb 2026 |
| 2571 | Strata Tech Services, Inc | Rowlett, TX 75088 | Oil Operator | Dec 2019 |
| 2572 | Strata-X Inc. | | Oil & Gas Operator | Nov 2025 |
| 2573 | Strataform, Inc. | | Gas Operator | Jun 2002 |
| 2574 | Stratagas, Inc. | Rowlett, TX 75088 | Oil & Gas Operator | May 2006 |
| 2575 | Stratakan Exploration, LLC | Plainville, KS 67663 | Oil & Gas Operator | Sep 2025 |
| 2576 | Stratco Operating Co Inc | Austin, TX 78701 | Oil & Gas Operator | Feb 2026 |
| 2577 | Stratco, Inc. | Edmond, OK 73013 | Oil & Gas Operator | Mar 2015 |
| 2578 | Strategic Well Holdings, Inc. | | Oil & Gas Operator | Dec 2020 |
| 2579 | Strategy Operating, LLC | Midland, TX 79710 | Gas Operator | Feb 2026 |
| 2580 | Stratex Oil & Gas Holdings, Inc. | Watertown, CT 06795 | Oil Operator | Jun 2015 |
| 2581 | Stratex Oil And Gas, Inc. | Watertown, CT 06795 | Oil & Gas Operator | Jun 2016 |
| 2582 | Stratford Well Service Inc | Pond Creek, OK 73766-0310 | Oil Operator | Nov 2003 |
| 2583 | Stratlynn, Inc. | Conroe, TX 77305 | Oil & Gas Operator | Mar 2008 |
| 2584 | Strawn DRLG. Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2005 |
| 2585 | Strawn Energy Services, LLC | Lubbock, TX 79424 | Oil Operator | Feb 2026 |
| 2586 | Strawn Operating Co., L.L.C. | El Paso, TX 79912 | Oil Operator | Feb 2026 |
| 2587 | Strawn Partners Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 2588 | Strawn Petroleum Operating, LLC | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 2589 | Stray Oil Company | Burkburnett, TX 76354 | Oil & Gas Operator | Aug 2008 |
| 2590 | Stray Oil Company, LLC | Burkburnett, TX 76354 | Oil Operator | Nov 2017 |
| 2591 | Stream Energy, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Nov 2025 |
| 2592 | Stream Restoration Specialists, LLC | | Gas Operator | Dec 2019 |
| 2593 | Streamline Energy, LLC | Yates Center, KS 66783 | Oil & Gas Operator | Dec 2019 |
| 2594 | Streamline Oil And Gas Inc | Lindsay, OK 73052 | Oil & Gas Operator | Dec 2025 |
| 2595 | Strebor Oil Co. | Dallas, TX 75225 | Oil & Gas Operator | Jun 1993 |
| 2596 | Street, Spencer B., Jr. | Graham, TX 76450 | Oil & Gas Operator | Mar 1998 |
| 2597 | Streetman Inc | | Oil Operator | Oct 1987 |
| 2598 | Stricker Resources Inc | Morris, OK 74445 | Oil & Gas Operator | Nov 2025 |
| 2599 | Strickland, H.W. | Henrietta, TX 76365 | Oil & Gas Operator | Dec 1999 |
| 2600 | Strickler Emory | New Concord, OH 43762 | Oil & Gas Operator | Dec 2013 |