| 27501 | Spyglass Oil & Gas LLC | | Oil & Gas Operator | Dec 2024 |
| 27502 | Square Mile Energy, L.L.C. | Houston, TX 77057 | Oil & Gas Operator | Nov 2025 |
| 27503 | Square One Corporation | Giddings, TX 78942 | Oil & Gas Operator | Dec 2012 |
| 27504 | Square One Energy, Inc. | Tulsa, OK 74159 | Oil & Gas Operator | Oct 2015 |
| 27505 | Squaw Mountain Oil, LLC | Jacksboro, TX 76458 | Oil Operator | Nov 2025 |
| 27506 | Squirrel Oil & Gas Inc | Tonkawa, OK 74653 | Oil & Gas Operator | Mar 2022 |
| 27507 | Squyres Oil Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2024 |
| 27508 | SR Production Corp. | Liberty, TX 77575 | Oil & Gas Operator | Mar 2010 |
| 27509 | Sram Oil Incorporated | Winfield, KS 67156 | Oil & Gas Operator | Aug 2005 |
| 27510 | SRG Oil Corporation | Abilene, TX 79604 | Oil & Gas Operator | Apr 1994 |
| 27511 | SRP Production Corp. | | Oil & Gas Operator | Nov 1997 |
| 27512 | SRS Properties, LLC | Whitehouse, TX 75791 | Oil & Gas Operator | Nov 2025 |
| 27513 | SRV Oil Co | Coleman, TX 76834 | Oil Operator | Nov 2025 |
| 27514 | SRW Operating LLC | Duncan, OK 73534-2087 | Oil & Gas Operator | Sep 2014 |
| 27515 | SS Operating LLC | Water Valley, TX 76958 | Oil Operator | Nov 2025 |
| 27516 | SSB Production LC | Ardmore, OK 73401 | Oil & Gas Operator | Jul 2025 |
| 27517 | SSC, Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Nov 2025 |
| 27518 | Ssi Energy LLC | | Oil & Gas Operator | Jul 2021 |
| 27519 | SSM Partnership-PV79 | | Oil Operator | Jun 1989 |
| 27520 | Ssouri Oil Ventures | | Oil Operator | Jan 2022 |
| 27521 | St Cleric Resources LLC | | Gas Operator | Aug 2025 |
| 27522 | St Croix LTD | Fairlawn, OH 44334 | Oil & Gas Operator | Dec 2022 |
| 27523 | St Croix Operating Inc | | Oil & Gas Operator | Aug 2025 |
| 27524 | St Joe Petroleum U S Corp | | Oil & Gas Operator | Aug 2000 |
| 27525 | St Johns Operating #1 LP | Houston, TX 77060 | Oil & Gas Operator | Aug 2023 |
| 27526 | St Joseph Min Co | | Oil Operator | Dec 2023 |
| 27527 | St Michael Exploration | | Oil & Gas Operator | Jun 1987 |
| 27528 | St Oil Company | Denver, CO 80264-2101 | Oil & Gas Operator | Dec 2010 |
| 27529 | St Oil Company LLC | New York, NY 10005-4016 | Oil Operator | Jul 2025 |
| 27530 | St Petroleum, Inc. | Edgerton, KS 66021 | Oil Operator | Jun 2025 |
| 27531 | St. Cajetan Oil Company, LLC | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2025 |
| 27532 | St. Clair Energy Corporation | Tulsa, OK 74153 | Oil & Gas Operator | Mar 2008 |
| 27533 | St. Clair Oil Co. | St Clairsville, OH 43950 | Oil & Gas Operator | Dec 1997 |
| 27534 | St. Columban'S On The Lake, Inc. | Silver Creek, NY 14136 | Gas Operator | Dec 2024 |
| 27535 | St. Croix Corporation | | Oil & Gas Operator | Apr 1990 |
| 27536 | St. James Oil Corporation | | Oil & Gas Operator | Dec 2009 |
| 27537 | St. Mary Energy Company | Houston, TX 77079 | Oil & Gas Operator | Aug 2008 |
| 27538 | St. Mary Land & Exploration Co | Denver, CO 80201 | Oil & Gas Operator | Jun 2010 |
| 27539 | St. Mary Operating Company | Denver, CO 80203 | Oil & Gas Operator | Mar 2019 |
| 27540 | St. Paul Oil And Gas Corp. | | Oil & Gas Operator | Aug 1991 |
| 27541 | Sta-Kel Incorporated | Graham, TX 76450 | Oil & Gas Operator | Dec 2000 |
| 27542 | Staab Alan R | Tulsa, OK 74114-4213 | Oil & Gas Operator | Sep 2010 |
| 27543 | Staab Energy & Leasing | | Oil Operator | May 2024 |
| 27544 | Staab Oil Co., A General Partnership | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 27545 | Staats & Martin | | Oil Operator | Aug 2013 |
| 27546 | Staats, William N | | Oil & Gas Operator | Jun 2025 |
| 27547 | Stablerock Energy L.L.C. | Oklahoma City, OK 73106 | Oil & Gas Operator | Nov 2025 |
| 27548 | Stach Enterprises LLC | Nashport, OH 43830 | Oil & Gas Operator | Dec 2021 |
| 27549 | Stacha, Eddy A. | Rice, TX 75155 | Oil & Gas Operator | Nov 2025 |
| 27550 | Stachler William L | Danville, OH 43014 | Oil & Gas Operator | Dec 1989 |
| 27551 | Stack Production | Dewey, OK 74029 | Oil & Gas Operator | Mar 2002 |
| 27552 | Stackhouse Construction Inc | Orwell, OH 44076 | Oil & Gas Operator | Dec 2024 |
| 27553 | Stacy Operating LLC | Cushing, OK 74023 | Oil & Gas Operator | Jul 2025 |
| 27554 | Stacy Reamy | Purdon, TX 76679 | Oil Operator | Nov 2025 |
| 27555 | Stafford, A C | | Oil Operator | Dec 2003 |
| 27556 | Stag Oil Producers Inc | Midland, TX 79701 | Oil & Gas Operator | Jan 1998 |
| 27557 | Stagecoach Pipeline & Storage Company LLC | | Gas Operator | Dec 2005 |
| 27558 | Stagg Investment Group, Inc. | Midland, TX 79701 | Oil Operator | May 2013 |
| 27559 | Staggered T Oil LLC | Quanah, TX 79252 | Oil Operator | Nov 2025 |
| 27560 | Staghorn Energy, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2025 |
| 27561 | Staghorn Petroleum II LLC | Tulsa, OK 74103-3500 | Oil & Gas Operator | Aug 2025 |
| 27562 | Staghorn Petroleum LLC | Tulsa, OK 74103-3500 | Oil & Gas Operator | Jul 2025 |
| 27563 | Staghorn Resources, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |
| 27564 | Stahl Petroleum Co. | Amarillo, TX 79118 | Oil & Gas Operator | Aug 2003 |
| 27565 | Stal Oil Production, L.L.C. | Argyle, TX 76226 | Oil Operator | Nov 2025 |
| 27566 | Stalcup Oil Comp | | Oil Operator | Dec 1992 |
| 27567 | Stalcup Oil Company | | Oil Operator | Oct 2009 |
| 27568 | Staley Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2000 |
| 27569 | Staley Operating Co. | Midland, TX 79702 | Oil & Gas Operator | Jan 2022 |
| 27570 | Staley, Jack C. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2000 |
| 27571 | Stalica, Donald E. | Pavilion, NY 14525 | Gas Operator | Dec 2024 |
| 27572 | Stalking Horse Energy, Limited Liability Company | Houston, TX 77062 | Oil & Gas Operator | Nov 2025 |
| 27573 | Stalking Horse Energy, LLC | Denver, CO 80246 | Oil Operator | Jul 2025 |
| 27574 | Stallings Eugene | | Oil Operator | Jul 1994 |
| 27575 | Stallion Energy LLC | Houston, TX 77090 | Oil & Gas Operator | Oct 2009 |
| 27576 | Stallion Energy, Inc. | Houston, TX 77060 | Oil & Gas Operator | Oct 2017 |
| 27577 | Stallion Inc. | Hurricane, WV 25526 | Oil & Gas Operator | Dec 2021 |
| 27578 | Stallion Oil Company | Lafayette, LA 70505 | Oil & Gas Operator | Jun 2004 |
| 27579 | Stallion Oil Corporation | | Oil & Gas Operator | Nov 1987 |
| 27580 | Stallion Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2025 |
| 27581 | Stalnaker Energy Corporation | | Oil & Gas Operator | Dec 2021 |
| 27582 | Stalnaker Oil Company | Maud, OK 74854-0295 | Oil Operator | May 2017 |
| 27583 | Stalnaker, William K | | Oil & Gas Operator | Dec 2008 |
| 27584 | Stalwart Energy Co | Tulsa, OK 74103-3518 | Oil & Gas Operator | Apr 2014 |
| 27585 | Stamic Oil LLC | Duncan, OK 73534-1898 | Oil & Gas Operator | Oct 2021 |
| 27586 | Stampede Energy Corp. | Canada, 00100 | Oil & Gas Operator | Mar 2000 |
| 27587 | Stamper Operating Co., Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2025 |
| 27588 | Stanco Petroleum Inc | Kimball, NE 69145 | Oil & Gas Operator | Jul 1999 |
| 27589 | Standard Alaska Production Company | | Oil & Gas Operator | Dec 1987 |
| 27590 | Standard Oil Co Of Calif | | Oil & Gas Operator | Dec 1983 |
| 27591 | Standard Oil Co Of WV | Walton, WV 25286 | Oil & Gas Operator | Dec 2024 |
| 27592 | Standard Oil Company, Inc. | Parkesburg, WV 26103 | Oil & Gas Operator | Mar 2022 |
| 27593 | Standard Oil Of Kentucky, Inc | | Oil Operator | Dec 2022 |
| 27594 | Standard Oil Tools, Inc. | College Sta, TX 77845 | Oil & Gas Operator | Nov 2025 |
| 27595 | Standard Operating Company | Wichita, KS 67205 | Oil & Gas Operator | Jun 2025 |
| 27596 | Standard Operating Company, LLC | | Oil & Gas Operator | May 2022 |
| 27597 | Standard Operating Inc | | Oil Operator | Jun 1986 |
| 27598 | Standard Production | | Oil Operator | Oct 1997 |
| 27599 | Standard Resources Corp. | Houston, TX 77063 | Oil & Gas Operator | Nov 2025 |
| 27600 | Standard Silver Corp | Richardson, TX 750801946 | Gas Operator | Aug 2024 |