| 2401 | Stockdale Energy Co. | | Gas Operator | Dec 1992 |
| 2402 | Stockdale Oil & Gas Inc. | | Oil & Gas Operator | Dec 2001 |
| 2403 | Stocker & Sitler Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 2002 |
| 2404 | Stockyard Energy Partners, LLC | Calumet, OK 73014 | Oil Operator | May 2025 |
| 2405 | Stoeppelwerth DR | | Oil Operator | May 1993 |
| 2406 | Stokes Donna L | Blanchard, OK 73010 | Oil & Gas Operator | Jun 2023 |
| 2407 | Stoll, James G | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 2408 | Stoltz, Deane H. | Midland, TX 79710 | Oil & Gas Operator | Oct 2000 |
| 2409 | Stone & Webster Oil Company, Inc | Houston, TX 77002 | Oil & Gas Operator | Dec 1995 |
| 2410 | Stone & Williams Oil&Gas Co.,Inc | Holliday, TX 76366 | Oil Operator | Apr 2013 |
| 2411 | Stone & Wolf LLC | Sheridan, WY 82801 | Oil & Gas Operator | Dec 2006 |
| 2412 | Stone Cabin Resources LLC | | Oil & Gas Operator | May 2025 |
| 2413 | Stone Creek Brick Co | Stone Creek, OH 43840 | Oil & Gas Operator | Dec 2004 |
| 2414 | Stone Creek Operating, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Jul 2025 |
| 2415 | Stone Edge Energy, LLC | Georgetown, TX 78633 | Oil & Gas Operator | Jul 2025 |
| 2416 | Stone Energy Corporation | Denver, CO 80202-2828 | Oil & Gas Operator | Oct 2014 |
| 2417 | Stone Energy LLC | Denver, CO 80202 | Oil & Gas Operator | May 2005 |
| 2418 | Stone Mountain Petroleum, LLC | Houston, TX 77008 | Oil & Gas Operator | Aug 2002 |
| 2419 | Stone Oak Operating LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Apr 2025 |
| 2420 | Stone Oil Compan | | Oil Operator | Jan 1990 |
| 2421 | Stone Oil Corp & McMoran Expl | | Oil & Gas Operator | Oct 1984 |
| 2422 | Stone Oil Corp - Strata Energy | | Oil & Gas Operator | Mar 1982 |
| 2423 | Stone Oil Corp-Forest Oil Corp | | Oil & Gas Operator | Jan 1983 |
| 2424 | Stone Oil-Lamson-Onshore Pet. | | Oil & Gas Operator | May 1985 |
| 2425 | Stone Oil-Quasar-Birthright | | Oil & Gas Operator | Feb 1981 |
| 2426 | Stone Petroleum Corporation | | Oil & Gas Operator | Dec 1996 |
| 2427 | Stone Ridge Energy LLC | Uniontown, PA 15401-6831 | Oil & Gas Operator | May 2025 |
| 2428 | Stone River Energy Corp | Edmond, OK 73034 | Oil & Gas Operator | Jan 2014 |
| 2429 | Stone Thomas R | Coweta, OK 74429-3293 | Oil & Gas Operator | Mar 2020 |
| 2430 | Stone, B. W. | Holliday, TX 76366 | Oil & Gas Operator | Feb 2012 |
| 2431 | Stone, D J | Palo Alto, CA 94301 | Oil & Gas Operator | Sep 1985 |
| 2432 | Stone, Gregory W. | Holliday, TX 76366 | Oil & Gas Operator | Jul 2025 |
| 2433 | Stone, J. G. Oil Co. | Victoria, TX 77904 | Oil & Gas Operator | Sep 2018 |
| 2434 | Stone, M. L. | Kerrville, TX 78029 | Oil & Gas Operator | Aug 2003 |
| 2435 | Stonebriar Oil LLC | Frisco, TX 75034 | Oil & Gas Operator | Jul 2025 |
| 2436 | Stonebriar Operating, LLC | Plano, TX 75093 | Oil Operator | Jul 2025 |
| 2437 | Stonebridge Operating Co LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 2438 | Stoneburner Exploration, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Oct 1997 |
| 2439 | Stonegate Operators, Inc. | Addison, TX 75001 | Oil Operator | Jul 2025 |
| 2440 | Stonegate Production Company,LLC | Houston, TX 77024 | Oil & Gas Operator | Jul 2025 |
| 2441 | Stonegate Ranch LLC | Caney, KS 67333 | Oil Operator | Mar 2025 |
| 2442 | Stoneham Oil Company | Houston, TX 77002 | Oil & Gas Operator | Sep 1995 |
| 2443 | Stoneham Production LLC | | Oil & Gas Operator | May 2025 |
| 2444 | Stonehaven Energy MGT Co LLC | Clearfield, PA 16830-7342 | Oil & Gas Operator | Dec 2019 |
| 2445 | Stoner Oil | Corsicana, TX 75109 | Oil Operator | Jul 2025 |
| 2446 | Stoner, C. M. | Cleburne, TX 76031 | Oil & Gas Operator | Oct 1996 |
| 2447 | Stoneridge Oil Inc | Ponca City, OK 74601-1600 | Oil & Gas Operator | Jan 2001 |
| 2448 | Stoneriver Energy, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Jul 2025 |
| 2449 | Stonestreet, Vance | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2006 |
| 2450 | Stonetown Properties, LTD. | Amarillo, TX 79114 | Oil & Gas Operator | Dec 2016 |
| 2451 | Stonewall Gas Co | Jane Lew, WV 26378 | Oil & Gas Operator | Dec 1999 |
| 2452 | Stonewall Production Company Inc | Tyler, TX 75702 | Oil & Gas Operator | Aug 2009 |
| 2453 | Stoney Creek Production LLC | | Oil Operator | Jan 2025 |
| 2454 | Stoney Lake Production Co LLC | | Oil Operator | May 2025 |
| 2455 | Storch, Diane F. | Attica, NY 14011 | Gas Operator | Dec 2024 |
| 2456 | Storck Omer | Tulsa, OK 74105 | Oil Operator | Apr 1997 |
| 2457 | Storm Burchett Dba Storm Resources, LLC | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 2458 | Storm Cat Energy USA Operating Corp | Denver, CO 80202 | Gas Operator | Jun 2017 |
| 2459 | Storm Exploration Inc | Skiatook, OK 74070-1014 | Oil & Gas Operator | Jan 2013 |
| 2460 | Storm Industries | | Oil & Gas Operator | Dec 1988 |
| 2461 | Storm Oil | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 2025 |
| 2462 | Storm Peak Energy, LLC | Midland, TX 79702 | Oil & Gas Operator | May 2012 |
| 2463 | Story NRG LLC | Boerne, TX 78006 | Oil & Gas Operator | Jul 2025 |
| 2464 | Story Oil And Gas Inc | Magnolia, AR 71753 | Oil & Gas Operator | Jan 2025 |
| 2465 | Stoskopf, Wayne | Hoisington, KS 67544 | Oil Operator | Apr 1995 |
| 2466 | Stotts-Kirkpatri | | Oil Operator | Oct 1991 |
| 2467 | Stoudt, Jean Marie | Broken Arrow, OK 74011 | Oil Operator | May 2024 |
| 2468 | Stout Consulting Services, Inc. | Alice, TX 78333 | Oil & Gas Operator | May 1999 |
| 2469 | Stout Energy Inc. | Midland, TX 79708 | Oil & Gas Operator | Jul 2025 |
| 2470 | Stovall Oil Company | Casper, WY 82602 | Oil & Gas Operator | Aug 1998 |
| 2471 | Stovall Operating Co. | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 2472 | Stovall, Howard | Cisco, TX 76437 | Oil & Gas Operator | Jul 2025 |
| 2473 | Stovall, Troy | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 2474 | Stover Company | Tulsa, OK 74152-0786 | Oil & Gas Operator | Jan 2013 |
| 2475 | Stover Oil Company | Konawa, OK 74849-0216 | Oil & Gas Operator | Jul 2002 |
| 2476 | Stover Petroleum Inc | | Oil & Gas Operator | Mar 1990 |
| 2477 | Stowe Energy, Inc. | Vernon, TX 76384 | Oil & Gas Operator | Mar 2003 |
| 2478 | Stowe Killingsworth | | Oil & Gas Operator | Apr 2023 |
| 2479 | Stowell, Cindy M. | Perry, NY 14530 | Gas Operator | Dec 2024 |
| 2480 | Stowers Energy, LLC | Celebration, FL 34747 | Oil & Gas Operator | Dec 2021 |
| 2481 | STP Cherokee, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2014 |
| 2482 | STP Newco Inc | Oklahoma City, OK 73102-5641 | Oil & Gas Operator | Jul 2021 |
| 2483 | Strabala Joseph | | Oil Operator | Jan 1992 |
| 2484 | Strachan Exploration Inc | Englewood, CO 80112 | Oil & Gas Operator | Apr 2025 |
| 2485 | Strago Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Aug 1994 |
| 2486 | Strahan Oil & Gas Co., Inc. | | Gas Operator | Oct 1983 |
| 2487 | Strait F W Incor | | Oil Operator | Jan 1992 |
| 2488 | Strand Energy, Inc. (I) | Houston, TX 77002 | Oil & Gas Operator | Sep 1996 |
| 2489 | Strand Energy, L.C. | Houston, TX 77002 | Oil & Gas Operator | Jul 2025 |
| 2490 | Strand, Carlton Oil | Stamford, TX 79553 | Oil & Gas Operator | May 1997 |
| 2491 | Strange, D. D. | Archer City, TX 76351 | Oil & Gas Operator | Sep 2014 |
| 2492 | Strange, Joyce Marital Trust | Holliday, TX 76366 | Oil Operator | May 2008 |
| 2493 | Strat Land Exploration Company | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2025 |
| 2494 | Strata Energy Re | | Oil Operator | Nov 1987 |
| 2495 | Strata Energy, Inc. | | Oil & Gas Operator | Sep 1983 |
| 2496 | Strata Exploration, Inc. | Fairfield, IL 62837 | Oil & Gas Operator | Mar 2025 |
| 2497 | Strata Oil Corporation | Carmi, IL 62821 | Oil & Gas Operator | Jan 2002 |
| 2498 | Strata Oil Incor | | Oil Operator | Mar 1994 |
| 2499 | Strata Operating, Inc. | Corpus Chrsti, TX 78466 | Oil & Gas Operator | Jul 2025 |
| 2500 | Strata Petroleum Co. | Midland, TX 79701 | Oil & Gas Operator | May 1997 |