| 27501 | Strawn Petroleum Operating, LLC | Houston, TX 77056 | Oil & Gas Operator | Jun 2026 |
| 27502 | Stray Oil Company | Burkburnett, TX 76354 | Oil & Gas Operator | Aug 2008 |
| 27503 | Stray Oil Company, LLC | Burkburnett, TX 76354 | Oil Operator | Nov 2017 |
| 27504 | Stream Energy, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2025 |
| 27505 | Streamline Energy, LLC | Yates Center, KS 66783 | Oil & Gas Operator | Dec 2019 |
| 27506 | Streamline Oil And Gas Inc | Lindsay, OK 73052 | Oil & Gas Operator | Mar 2026 |
| 27507 | Strebor Oil Co. | Dallas, TX 75225 | Oil & Gas Operator | Jun 1993 |
| 27508 | Street, Spencer B., Jr. | Graham, TX 76450 | Oil & Gas Operator | Mar 1998 |
| 27509 | Streetman Inc | | Oil Operator | Oct 1987 |
| 27510 | Stricker Resources Inc | Morris, OK 74445 | Oil & Gas Operator | Feb 2026 |
| 27511 | Strickler Emory | New Concord, OH 43762 | Oil & Gas Operator | Dec 2013 |
| 27512 | Stride Energy LLC | Piedmont, OK 73078 | Oil & Gas Operator | Mar 2026 |
| 27513 | Stright Roger | Amesville, OH 45711 | Oil & Gas Operator | Dec 2016 |
| 27514 | Strike Axe Oil And Gas Corporation | | Oil & Gas Operator | Mar 2021 |
| 27515 | Strike Energy Corporation | Blackwell, OK 74631 | Oil & Gas Operator | Jul 2023 |
| 27516 | Strike Energy LLC | Ardmore, OK 73401 | Oil Operator | Jan 2026 |
| 27517 | Strike Too Oil | Albany, TX 76430 | Oil Operator | Jun 2026 |
| 27518 | Striker Management Co LLC | Shawnee, OK 74801 | Oil & Gas Operator | Feb 2026 |
| 27519 | Striker Petroleum Corporation | Englewood, CO 80111 | Oil & Gas Operator | Dec 1999 |
| 27520 | Striker Petroleum Operations LLC | Frisco, TX 75034-2127 | Oil & Gas Operator | Nov 2014 |
| 27521 | Striker Robert E | Rogers, OH 44455 | Oil & Gas Operator | Dec 2025 |
| 27522 | Stringer E M | | Oil Operator | May 1996 |
| 27523 | Stringer Oil & Gas Co., Inc. | San Angelo, TX 76902 | Oil & Gas Operator | Oct 1996 |
| 27524 | Striper Oil, Inc. | Dallas, TX 75379 | Oil & Gas Operator | Apr 2002 |
| 27525 | Stripper Oil Com | | Oil Operator | Nov 1996 |
| 27526 | Stripper Oil Company Inc | | Oil Operator | Jan 2026 |
| 27527 | Strippit, Inc. | Akron, NY 14001 | Gas Operator | Dec 2024 |
| 27528 | Stroke Of Luck Energy & Exploration LLC | Cassoday, KS 66842 | Oil Operator | Sep 2021 |
| 27529 | Stromquist C Dal | | Oil & Gas Operator | Aug 1991 |
| 27530 | Stromquist, C. Dale, A General Partnership | Liberal, KS 67901 | Oil & Gas Operator | Aug 2010 |
| 27531 | Strong Rock Operating Company, LLC | | Oil & Gas Operator | Mar 2026 |
| 27532 | Stronghold Energy II Oper, LLC | Midland, TX 79702 | Oil & Gas Operator | Aug 2022 |
| 27533 | Stroube Energy Corporation | Dallas, TX 75248 | Oil & Gas Operator | Jan 2012 |
| 27534 | Stroube Family Partnership #2 | Corsicana, TX 75151 | Oil Operator | Jun 2026 |
| 27535 | Stroud Energy, LTD. | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2006 |
| 27536 | Stroud Oil Properties, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | May 2013 |
| 27537 | Stroud Operating LLC | | Oil & Gas Operator | Dec 2012 |
| 27538 | Stroud Petroleum Company | Oklahoma City, OK 73156-0156 | Oil Operator | Jun 2014 |
| 27539 | Stroud Petroleum, Inc. | Shreveport, LA 71162 | Oil & Gas Operator | Jun 2026 |
| 27540 | Stroud Production LLC | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2024 |
| 27541 | Struck Rock Oil And Gas LLC | Geary, OK 73040 | Oil & Gas Operator | Feb 2026 |
| 27542 | Struthers Oil & Gas Corp | Tulsa, OK 74133 | Oil & Gas Operator | Jan 2013 |
| 27543 | Struthoff Energy, L.L.C. | San Antonio, TX 78216 | Oil Operator | Jun 2026 |
| 27544 | Stryker Energy Corp. | Mesquite, TX 75180 | Oil & Gas Operator | Jun 2026 |
| 27545 | Stryker Energy LLC | Mayfield VIllag, OH 44143 | Oil & Gas Operator | Dec 2018 |
| 27546 | STS Petroleum LLC | Houston, TX 77289 | Oil & Gas Operator | Jun 2026 |
| 27547 | Stuart & Barrett | San Angelo, TX 76904 | Gas Operator | Jan 2008 |
| 27548 | Stuart Oil | | Oil Operator | Jan 2025 |
| 27549 | Stuart Oil & Gas | Longview, TX 75606 | Oil & Gas Operator | Jun 2026 |
| 27550 | Stuart Operating, LLC | Ozona, TX 76943 | Oil & Gas Operator | Jun 2026 |
| 27551 | Stubblefield Energy Company | Abilene, TX 79606 | Oil & Gas Operator | Jun 2026 |
| 27552 | Stubbs & Fleming, A General Partnership | Wichita, KS 67202 | Oil Operator | Jul 2005 |
| 27553 | Stubbs Operating Co. | Archer City, TX 76351 | Oil & Gas Operator | Aug 1998 |
| 27554 | Stubbs, J. W. | Suwanee, GA 30024 | Oil & Gas Operator | Mar 2008 |
| 27555 | Stuber, VIrgil | Eureka, KS 67045 | Oil Operator | Dec 2019 |
| 27556 | Stucky Oil Compa | | Oil Operator | Mar 1988 |
| 27557 | Stucky, Edward P. | Sabetha, KS 66534 | Oil Operator | May 1992 |
| 27558 | Stucky, Kenneth R. Oil & Gas Operations | Burrton, KS 67020 | Oil & Gas Operator | Aug 2002 |
| 27559 | Studer Oil Co. | Pratt, KS 67124 | Oil Operator | Oct 2019 |
| 27560 | Studer Oil Compa | | Oil & Gas Operator | Feb 1993 |
| 27561 | Studley Resources Corporation | Humble, TX 77347 | Oil & Gas Operator | Dec 1996 |
| 27562 | Studley, Richard | Gowanda, NY 14070 | Gas Operator | Dec 2024 |
| 27563 | Studley, Robert SR. & Robert Jr. | Gowanda, NY 14070 | Gas Operator | Dec 2024 |
| 27564 | Stull Crude Co, LLC | | Oil Operator | Feb 2026 |
| 27565 | Stull Oil LLC | Natoma, KS 67651 | Oil Operator | Feb 2026 |
| 27566 | Stults, Joe K. | Archer City, TX 76351 | Oil & Gas Operator | Mar 2007 |
| 27567 | Stumpff Paul | Bartlesville, OK 74006-3426 | Oil & Gas Operator | Mar 2015 |
| 27568 | Sturgeon Point Development Co | | Gas Operator | Jun 2019 |
| 27569 | Sturman Jay R | Mounds, OK 74047 | Oil & Gas Operator | Aug 2025 |
| 27570 | Stuteville Oil Co. | Olney, TX 76374 | Oil & Gas Operator | Aug 2004 |
| 27571 | Stuteville, Jack | Olney, TX 76374 | Oil Operator | Jun 2026 |
| 27572 | Stydahar Oil & Gas Co. | | Oil & Gas Operator | Dec 2021 |
| 27573 | STZ Petroleum Inc. | Houston, TX 77268 | Oil & Gas Operator | Dec 1997 |
| 27574 | Sub Surface Operations | Brownwood, TX 76804 | Oil & Gas Operator | Jun 2026 |
| 27575 | Sublette Feeders LLC | Sublette, KS 67877 | Gas Operator | Feb 2026 |
| 27576 | Suborp Energy, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Sep 2000 |
| 27577 | Subsea Operating Co. | Albany, TX 76430 | Oil & Gas Operator | Jun 2026 |
| 27578 | Subsurface Energy Corp. | Coleman, TX 76834 | Oil & Gas Operator | Jun 2026 |
| 27579 | Subsurface Energy, Inc. | | Oil & Gas Operator | Oct 2015 |
| 27580 | Subsurface Exploration | Coleman, TX 76834 | Oil & Gas Operator | Apr 2006 |
| 27581 | Subsurface Minerals Group LLC | Tulsa, OK 74119-1635 | Oil & Gas Operator | Jan 2013 |
| 27582 | Subsurface Production, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Jun 2026 |
| 27583 | Subsurface Resources Inc | Logan, UT 84321 | Oil & Gas Operator | Aug 1990 |
| 27584 | Subterranean Energy, LLC | Tyler, TX 75705 | Oil & Gas Operator | Jun 2026 |
| 27585 | Suburban Propane Expl Co, Inc. | | Oil & Gas Operator | Jun 1983 |
| 27586 | Suburban Propane Gas Corp. | | Oil & Gas Operator | Sep 1980 |
| 27587 | Success Oil Company, Inc. | Beverly Hills, CA 90211 | Oil & Gas Operator | Jun 2026 |
| 27588 | Sudberry Mark E Dba Gushing Oil Co | Trophy Club, TX 76262-5531 | Oil Operator | Jan 2020 |
| 27589 | Sue-Ann Operating, L.C. | Victoria, TX 77903 | Oil & Gas Operator | Jun 2026 |
| 27590 | Sue-Ann Production Company | Victoria, TX 77903 | Oil & Gas Operator | Mar 2008 |
| 27591 | Suemaur Expl. & Prod., LLC | Corpus Christ, TX 78401 | Oil & Gas Operator | Jun 2024 |
| 27592 | Suemaur Exploration, Inc. | Corpus Chrsti, TX 78470 | Oil & Gas Operator | Mar 2008 |
| 27593 | Suemaur Operating LLC | Corpus Christ, TX 78401 | Oil & Gas Operator | Jun 2026 |
| 27594 | Suerte Oil & Gas LLC | Caney, KS 67333 | Oil Operator | Mar 2025 |
| 27595 | Suerte Oil Compa | | Oil & Gas Operator | Oct 1995 |
| 27596 | Suerte Oil Company | Howard, KS 67349 | Oil & Gas Operator | Jan 2017 |
| 27597 | Sugar Bowl Gas Corp. | | Oil Operator | Dec 1983 |
| 27598 | Sugar Bowl Industrial Gas Corp | | Oil Operator | Dec 1983 |
| 27599 | Sugar Creek Environmental, LLC | | Oil Operator | Jan 2025 |
| 27600 | Sugar Creek Producing Company | | Oil & Gas Operator | Dec 2010 |