| 26501 | Shubuta Oil Corporation | Houston, TX 77056 | Oil & Gas Operator | Sep 1998 |
| 26502 | Shufflin Energy | | Oil & Gas Operator | Sep 2011 |
| 26503 | Shuler Drilling Co., Inc. | El Dorado, AR 71730 | Oil & Gas Operator | Jul 2024 |
| 26504 | Shultz, Melvin W. | Parsons, KS 67357 | Oil Operator | Nov 1995 |
| 26505 | Shultz, Todd W. | Limestone, NY 14753 | Oil & Gas Operator | Dec 2023 |
| 26506 | Shulz-Hill-Swank | | Oil Operator | Dec 2022 |
| 26507 | Shumate, Jess | Brookesmith, TX 76827 | Oil Operator | Jun 2006 |
| 26508 | Shuteston Oil & Gas | | Oil & Gas Operator | Sep 1997 |
| 26509 | SHWJ Oil & Gas Co., Inc. | Oil City, LA 71061 | Oil Operator | Nov 2024 |
| 26510 | Siana Oil & Gas | Pearland, TX 77581 | Oil & Gas Operator | Nov 2024 |
| 26511 | Siana Oil & Gas., L.L.C | | Oil & Gas Operator | Dec 2021 |
| 26512 | Siana Operating LLC | Conroe, TX 77305224 | Oil & Gas Operator | May 2017 |
| 26513 | Sicko Jaquetta Len | Muldoon, TX 78949 | Oil Operator | Mar 2024 |
| 26514 | Sideline Oil & Gas, L.P. | Friendswood, TX 77549 | Oil Operator | Nov 2024 |
| 26515 | Sidney E. Pinkston, Jr, Trustee | | Oil & Gas Operator | Apr 1980 |
| 26516 | Sidney Lanier | Midland, TX BADADDR | Oil & Gas Operator | Jan 1996 |
| 26517 | Sidwell Oil & Ga | | Oil & Gas Operator | May 1993 |
| 26518 | Sidwell Oil & Gas, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Sep 2014 |
| 26519 | Sidwell Operating Company, L.P. | Amarillo, TX 79105 | Oil & Gas Operator | Nov 2024 |
| 26520 | Sidwell Theodore R Jr | Thornville, OH 43076-0839-0839 | Oil & Gas Operator | Dec 1988 |
| 26521 | Sieg Energy, Inc. | Ottawa, KS 66067 | Oil Operator | Jun 2024 |
| 26522 | Siegfried R H In | | Oil Operator | Apr 1985 |
| 26523 | Siegfried R H Inc | Tulsa, OK 74104 | Oil & Gas Operator | Mar 2008 |
| 26524 | Siempre Energy Operating, LLC | Houston, TX 77094 | Oil Operator | Nov 2024 |
| 26525 | Siemsen Operating, LLC | Holyrood, KS 67450 | Oil Operator | Jul 2024 |
| 26526 | Sien Operating Company, LLC | San Antonio, TX 78209 | Oil Operator | May 2023 |
| 26527 | Sierra Blanca Operating Company | Cleburne, TX BADADDR | Oil & Gas Operator | May 1999 |
| 26528 | Sierra Drilling | | Oil Operator | Sep 1988 |
| 26529 | Sierra Exploration Company | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2008 |
| 26530 | Sierra Group, L.L.C. | San Angelo, TX 76904 | Oil & Gas Operator | Nov 2024 |
| 26531 | Sierra Industries, Inc. | | Oil & Gas Operator | Apr 1989 |
| 26532 | Sierra Lima Oil & Gas, LLC | Abilene, TX 79604 | Oil & Gas Operator | Nov 2024 |
| 26533 | Sierra Madre LLC | Greensburg, KS 67054 | Oil & Gas Operator | May 2015 |
| 26534 | Sierra Madre Natural Res., LLC | Dallas, TX 75225 | Oil & Gas Operator | Dec 2016 |
| 26535 | Sierra Madre Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2024 |
| 26536 | Sierra Minerals, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Nov 2024 |
| 26537 | Sierra Oil Company | Fort Worth, TX 76106 | Oil & Gas Operator | Nov 2024 |
| 26538 | Sierra Petroleum | | Oil & Gas Operator | Sep 1986 |
| 26539 | Sierra Production Company | | Oil & Gas Operator | May 1986 |
| 26540 | Sierra Reserve Company | | Oil Operator | Dec 1985 |
| 26541 | Sierra Resources, Inc. | Oklahoma City, OK 73142 | Oil & Gas Operator | Sep 2024 |
| 26542 | Sierra Resources, LLC | Houston, TX 77219 | Oil & Gas Operator | Aug 2021 |
| 26543 | Sierra Trading Corporation | | Oil & Gas Operator | Sep 1978 |
| 26544 | Siete Oil And Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 26545 | Sigma Corporation | Charleston, WV 25301-0000 | Gas Operator | Dec 2021 |
| 26546 | Sigma Energy & Explor., Co LLC | Ozona, TX 76943 | Oil & Gas Operator | Feb 2010 |
| 26547 | Sigma Energy, LLC | | Oil Operator | Jul 2024 |
| 26548 | Sigma Oper & Develop Co., Inc. | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
| 26549 | Sigmon Construction Co., Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2024 |
| 26550 | Sigmon Production Company, Inc. | Longview, TX 75608 | Oil & Gas Operator | Dec 2013 |
| 26551 | Signal Hill Company LLC | Cody, WY 82414 | Oil & Gas Operator | Sep 2024 |
| 26552 | Signal Hill Expl & Pet Inc | Duncan, OK 73533 | Oil & Gas Operator | Mar 2015 |
| 26553 | Signal Hill Petroleum Inc. | | Oil & Gas Operator | Sep 2024 |
| 26554 | Signal Oil And Gas Company | Colleyville, TX 76034 | Oil & Gas Operator | Nov 2024 |
| 26555 | Signal Oil Company, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2024 |
| 26556 | Signal Petroleum | | Oil & Gas Operator | Jul 1980 |
| 26557 | Signal, LLC | | Oil & Gas Operator | Aug 2024 |
| 26558 | Signal, LLC Of Mississippi | | Oil & Gas Operator | Jun 2024 |
| 26559 | Signature Exploration Inc. | Shawnee, OK 74804-4130 | Oil & Gas Operator | Mar 2015 |
| 26560 | Sikes Oil Company Inc | Velma, OK 73091-0759 | Oil & Gas Operator | Jan 2014 |
| 26561 | Sikes Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Jun 2003 |
| 26562 | Sikes, Arlas M. | Brownwood, TX 76801 | Oil & Gas Operator | May 2000 |
| 26563 | Silberman A & M Oil | Oklahoma City, OK 73122-3096 | Oil & Gas Operator | Apr 2014 |
| 26564 | Silent Stone Energy LLC | Barnsdal, OK 74002 | Oil & Gas Operator | Aug 2024 |
| 26565 | Silhan, Terry | Marion, KS 66861 | Oil & Gas Operator | Dec 2009 |
| 26566 | Sills Oil Co | Osage, OK 74054 | Oil Operator | May 2024 |
| 26567 | Siltstone Resources Op II, LLC | Wilmington, DE 19801 | Oil & Gas Operator | Nov 2024 |
| 26568 | Silvco Energy, LLC | | Oil Operator | Apr 2014 |
| 26569 | Silver Creek Oil | Merkel, TX 79536 | Oil & Gas Operator | Aug 2003 |
| 26570 | Silver Creek Oil & Gas, Inc. | Wichita, KS 67203 | Oil Operator | Dec 1997 |
| 26571 | Silver Creek Oil & Gas, LLC | Flower Mound, TX 75022 | Oil & Gas Operator | Nov 2024 |
| 26572 | Silver Creek Permian Op Co, LLC | Irving, TX 75038 | Oil & Gas Operator | Apr 2023 |
| 26573 | Silver Creek Resources, LLC | Irving, TX 75038 | Oil & Gas Operator | Apr 2017 |
| 26574 | Silver Cross Energy Partners LLC | Richmond, TX 77469 | Oil & Gas Operator | Nov 2024 |
| 26575 | Silver Eagle Oil Company | Ada, OK 74820 | Oil Operator | Dec 2004 |
| 26576 | Silver Exploration Company | | Oil & Gas Operator | Sep 2024 |
| 26577 | Silver Fox Oil & Gas LLC | Hebbronville, TX 78361 | Oil & Gas Operator | Nov 2024 |
| 26578 | Silver Hill Energy Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Nov 2024 |
| 26579 | Silver Hill Energy Partners, LLC | Dallas, TX 75219 | Oil & Gas Operator | Feb 2017 |
| 26580 | Silver Mountain Energy LLC | | Gas Operator | Aug 2024 |
| 26581 | Silver Oak Energy, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2016 |
| 26582 | Silver Oak Operating, Inc. | Longview, TX 75601 | Oil & Gas Operator | Dec 2009 |
| 26583 | Silver Oak Operating, LLC | Longview, TX 75604 | Oil & Gas Operator | Nov 2024 |
| 26584 | Silver Oil & Gas Inc. | San Angelo, TX 76906 | Oil & Gas Operator | Nov 2024 |
| 26585 | Silver Petroleum Inc | | Gas Operator | Dec 2001 |
| 26586 | Silver Pines Energy Corp. | Houston, TX 77005 | Oil & Gas Operator | Sep 2024 |
| 26587 | Silver Run Oil & Gas | | Oil & Gas Operator | Dec 2021 |
| 26588 | Silver Spike Energy Oper, LLC | Midland, TX 79710 | Oil & Gas Operator | Dec 2015 |
| 26589 | Silver Spike Energy Operating Of NM, LLC | Midland, TX 79701 | Oil Operator | Jul 2016 |
| 26590 | Silver Star Of Nevada Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Aug 2024 |
| 26591 | Silver Star Operating Co., LLC | Nada, TX 77460 | Gas Operator | Nov 2024 |
| 26592 | Silver Star Production Co | Moore, OK 73160-6202 | Oil & Gas Operator | Aug 2024 |
| 26593 | Silver Thread Oil & Gas, Inc. | | Oil & Gas Operator | Jul 2015 |
| 26594 | Silver Tusk Operating Co. LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2018 |
| 26595 | Silverado Oil Inc | Greeley, CO 80631 | Oil Operator | Apr 2000 |
| 26596 | Silverado Oil LTD | Ardmore, OK 73401 | Oil & Gas Operator | Jun 2003 |
| 26597 | Silverback Operating II, LLC | Oklahoma City, OK 73112 | Oil & Gas Operator | Sep 2024 |
| 26598 | Silverback Operating, LLC | San Antonio, TX 78257 | Oil & Gas Operator | Oct 2016 |
| 26599 | Silverbacq LLC | | Oil & Gas Operator | Sep 2024 |
| 26600 | Silverbow Resources Oper, LLC | Houston, TX 77024 | Oil & Gas Operator | Nov 2024 |