| 26501 | Sep Cisco Dome II, LLC | Orem, UT 84097 | Oil & Gas Operator | Apr 2025 |
| 26502 | Sep Cisco Dome LLC | Orem, UT 84097 | Oil & Gas Operator | Mar 2015 |
| 26503 | Sep Nosr LLC | Orem, UT 84097 | Oil & Gas Operator | Apr 2025 |
| 26504 | Sep, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1994 |
| 26505 | September Corp | Titusville, PA 16354-6833 | Oil & Gas Operator | Dec 2024 |
| 26506 | Sepulvado Oilfield Service Inc | | Oil & Gas Operator | Jul 2010 |
| 26507 | Sequel Energy, LLC | | Oil & Gas Operator | May 2014 |
| 26508 | Sequoia Energy Resources | Dallas, TX 75207 | Oil & Gas Operator | Jun 2025 |
| 26509 | Sequoia Exploration Inc. | | Oil & Gas Operator | Mar 2025 |
| 26510 | Sequoia Fossil Fuels, Inc. | Albany, TX 76430 | Oil & Gas Operator | Jun 2025 |
| 26511 | Sequoia Management, LLC | Houston, TX 77060 | Oil & Gas Operator | Nov 2009 |
| 26512 | Sequoia Natural Gas, Inc. | Albany, TX 76430 | Oil & Gas Operator | Jun 2025 |
| 26513 | Sequoia Oil & Gas, Inc. | Fort Worth, TX 76164 | Oil & Gas Operator | Jan 1993 |
| 26514 | Sequoyah Energy Holdings LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Apr 2025 |
| 26515 | Ser E&P, Inc. | McKinney, TX 75069 | Oil & Gas Operator | Jun 2025 |
| 26516 | Serco Operating LLC | Katy, TX 77450 | Oil Operator | Jun 2025 |
| 26517 | Serendipity Exploration, Inc. | Weatherford, TX 76087 | Gas Operator | May 1997 |
| 26518 | Serendipity Operating LLC | Sparks, NV 89436-9328 | Oil & Gas Operator | Mar 2025 |
| 26519 | Serendipity Production Company LC | Guthrie, OK 73044 | Oil & Gas Operator | Apr 2020 |
| 26520 | Sergeant Gas Co Inc | Wilcox, PA 15870-1810 | Oil & Gas Operator | Dec 2024 |
| 26521 | Serio Energy Corporation | | Oil & Gas Operator | Jul 2000 |
| 26522 | Serio Exploration Company | | Oil Operator | Jan 1992 |
| 26523 | Serio Oil Corp. | | Oil & Gas Operator | Sep 1991 |
| 26524 | Serio Operating Company | | Oil & Gas Operator | Mar 2007 |
| 26525 | Serio-Punches Oil Co | | Oil Operator | Jan 2008 |
| 26526 | Serna Inc. | Austin, TX 78733 | Oil Operator | Jun 2025 |
| 26527 | Serra Energy, Inc. | Hailey, ID 83333 | Oil & Gas Operator | May 2011 |
| 26528 | Servco Productio | | Oil Operator | Dec 1992 |
| 26529 | Service Clearing Corp | Dallas, TX 75229 | Oil & Gas Operator | Jun 2025 |
| 26530 | Service Drilling Co. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 1998 |
| 26531 | Service Drilling Co., L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 2003 |
| 26532 | Service Production Company, Inc. | Santa Fe, TX 77510 | Oil & Gas Operator | May 1999 |
| 26533 | Ses Oil | | Oil Operator | Jun 2004 |
| 26534 | Ses Production | | Oil & Gas Operator | Oct 2023 |
| 26535 | Sescil, Douglas W. | Akron, NY 14001 | Gas Operator | Dec 2023 |
| 26536 | Sessions Billy C | Muskogee, OK 74401-5323 | Oil Operator | Apr 2007 |
| 26537 | Setab Prod. | Batson, TX 77519 | Oil & Gas Operator | Apr 2025 |
| 26538 | Setex Oil And Gas Company | Houston, TX 77002 | Oil & Gas Operator | Feb 2012 |
| 26539 | Setex Oil Company, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jan 2000 |
| 26540 | Settco Oil & Gas | | Oil & Gas Operator | May 1994 |
| 26541 | Settlers Corporation | Oklahoma City, OK 73116 | Oil & Gas Operator | Nov 2000 |
| 26542 | Settlers Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Apr 1998 |
| 26543 | Sev Texas Operating, LLC | Long Beach, CA 90755 | Oil & Gas Operator | Jun 2025 |
| 26544 | Sevarg Company, Inc. | | Oil & Gas Operator | Feb 2016 |
| 26545 | Seven Cross Operating, LLC | Santa Anna, TX 76878 | Oil & Gas Operator | Jun 2025 |
| 26546 | Seven Falls Company | Dallas, TX 75201 | Oil & Gas Operator | May 2008 |
| 26547 | Seven Horses LLC | Alva, OK 73717-5004 | Oil & Gas Operator | Apr 2025 |
| 26548 | Seven J Oil Inc | Jenning, OK 74038-9729 | Oil & Gas Operator | Mar 2025 |
| 26549 | Seven Sisters Oil & Gas LLC | Casper, WY 82602 | Oil & Gas Operator | Jan 2022 |
| 26550 | Seven To One Oil & Gas LLC | Magnolia, OH 44643 | Oil & Gas Operator | Dec 2024 |
| 26551 | Seven Wells Oil & Gas Expl. | Abilene, TX 79601 | Oil & Gas Operator | Jun 2014 |
| 26552 | Sevenbar Resources, LLC | Hallettsville, TX 77964 | Oil & Gas Operator | Jun 2025 |
| 26553 | Seventh Corporation The | Oklahoma City, OK 73107 | Oil & Gas Operator | May 2006 |
| 26554 | Seventy Oil Co. | Freer, TX 78357 | Oil & Gas Operator | Mar 2002 |
| 26555 | Sevenx, LLC | Iowa Park, TX 76367 | Oil Operator | Jun 2025 |
| 26556 | Severtson, James C. | Allegany, NY 14706 | Oil & Gas Operator | Dec 2023 |
| 26557 | Sevitski & Associates Inc | Pryor, OK 74361 | Oil & Gas Operator | Dec 2000 |
| 26558 | Sewell Development Co Inc | | Oil & Gas Operator | Apr 1993 |
| 26559 | Sexton Oil Company | Camden, AR 71701 | Oil Operator | Apr 2024 |
| 26560 | Seydell, E. Morris | Wichita Falls, TX 76307 | Oil Operator | Feb 1993 |
| 26561 | Seymour Oil Co., Inc. | Edmond, OK 73025 | Oil & Gas Operator | Jul 2011 |
| 26562 | Seymour, James & Lorraine | Cut Bank, MT 59427 | Oil Operator | Jul 2022 |
| 26563 | Sfeop | Midland, TX 79701 | Oil & Gas Operator | Mar 1994 |
| 26564 | SFJV Enterprises, Inc. | Berclair, TX 78107 | Gas Operator | Aug 1998 |
| 26565 | SFM Holdings, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jul 1995 |
| 26566 | SG Interests I LTD | Houston, TX 77007 | Oil & Gas Operator | Apr 2025 |
| 26567 | SG Interests, Inc. | Houston, TX 77010 | Oil & Gas Operator | Jun 2007 |
| 26568 | SGB Oil LLC | Luling, TX 78648 | Oil Operator | Jun 2025 |
| 26569 | Sgcu GP LLC | Casper, WY 82602 | Oil Operator | Apr 2025 |
| 26570 | SGP Operating LLC | Dallas, TX 75205 | Oil & Gas Operator | Jun 2025 |
| 26571 | SH Oil Operations LLC | Wichita, KS 67277 | Oil & Gas Operator | Feb 2025 |
| 26572 | Sha Stephens, Incorporated | Weatherford, TX 76087 | Oil & Gas Operator | Apr 2006 |
| 26573 | Sha-Jam Operating Corp. | Midland, TX 79701 | Oil & Gas Operator | Jun 2025 |
| 26574 | Shack, Bill | Albany, TX 76430 | Oil & Gas Operator | Apr 2006 |
| 26575 | Shackelford Oil Co | Midland, TX 79707 | Oil & Gas Operator | Mar 2025 |
| 26576 | Shackelford,Frank Oil Properties | Midland, TX 79701 | Oil & Gas Operator | Aug 1997 |
| 26577 | Shadawn Corporation | Wichita Falls, TX 76310 | Oil & Gas Operator | Mar 2005 |
| 26578 | Shadco | Worland, WY 82401 | Oil & Gas Operator | Mar 2025 |
| 26579 | Shade Tree Oil C | | Oil Operator | Oct 1987 |
| 26580 | Shadow Wolf Energy LLC | | Oil Operator | Apr 2025 |
| 26581 | Shadow-Del Oil Company | Kiefer, OK 74041-0453 | Oil & Gas Operator | Jul 2015 |
| 26582 | Shadowpeak Operating LLC | Oklahoma City, OK 73159-6905 | Oil & Gas Operator | Mar 2025 |
| 26583 | Shadrack Production Company | | Gas Operator | Dec 1982 |
| 26584 | Shady Oil Co. | Brownwood, TX 76801 | Oil & Gas Operator | Jun 2025 |
| 26585 | Shafer Berman J | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
| 26586 | Shafer David Oil Prod Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
| 26587 | Shafer Oil & Gas, Inc. | | Oil & Gas Operator | Dec 2021 |
| 26588 | Shaffer Oil Co., Inc. | Burlington, KS 66839 | Oil & Gas Operator | Jul 2001 |
| 26589 | Shaffer Oil Leas | | Oil Operator | May 1993 |
| 26590 | Shag Bark Land And Cattle Co. LLC | Olean, NY 14760 | Oil & Gas Operator | Dec 2021 |
| 26591 | Shahan, Donald Allan | Abilene, TX 79602 | Oil Operator | Jun 2025 |
| 26592 | Shahara Oil LLC | Carlsbad, NM 88220 | Oil & Gas Operator | Oct 2000 |
| 26593 | Shaida, John H. | Wichita, KS 67226 | Oil & Gas Operator | Jun 2025 |
| 26594 | Shakespeare Oil Co Inc | Salem, IL 62881 | Oil & Gas Operator | Mar 2025 |
| 26595 | Shale Energy International, LLC | | Oil & Gas Operator | Nov 2024 |
| 26596 | Shale Energy LLC | Jeffersonville, KY 40337 | Oil Operator | Dec 2018 |
| 26597 | Shale Gas Production, LLC | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 26598 | Shale Hunter, LLC | Irving, TX 75039 | Oil & Gas Operator | Jan 2016 |
| 26599 | Shale Oil Co., Inc. | Liberty, TX 77575 | Oil & Gas Operator | Jun 2025 |
| 26600 | Shale Operating Co. | Dallas, TX 75356 | Oil & Gas Operator | Jun 2025 |