| 26501 | Skinner, Robert V. | Spearman, TX 79081 | Oil & Gas Operator | Aug 2008 |
| 26502 | Skinner, W. E. | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 2026 |
| 26503 | Skinnergy Co. | Spearman, TX 79081 | Oil & Gas Operator | Sep 2026 |
| 26504 | Skipworth, Joseph D | | Oil Operator | Dec 2021 |
| 26505 | SKKM Oil Company | | Oil Operator | Dec 1992 |
| 26506 | Sklar | | Oil & Gas Operator | Dec 2024 |
| 26507 | Sklar & Phillips - Harry Hurt | | Oil & Gas Operator | Jul 1986 |
| 26508 | Sklar & Phillips Oil Co. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2000 |
| 26509 | Sklar & Phillips Oil Co.-Entex | | Oil & Gas Operator | Aug 1978 |
| 26510 | Sklar &Phillips-Great Southern | | Oil & Gas Operator | Aug 1980 |
| 26511 | Sklar Exploration Company LLC | Shreveport, LA 71101 | Oil & Gas Operator | Sep 2026 |
| 26512 | Sklar-Tex L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2001 |
| 26513 | Skora, James B. | Lawtons, NY 14091 | Gas Operator | Dec 2025 |
| 26514 | Skrivanos Engineering, Inc. | Shreveport, LA 71164 | Oil & Gas Operator | Dec 2011 |
| 26515 | Skrzynski, Thomas J. | Eden, NY 14057 | Gas Operator | Dec 2025 |
| 26516 | SKS Oil | Olney, TX 76374 | Oil & Gas Operator | Sep 2026 |
| 26517 | Skubis, Daniel J. | Fredonia, NY 14063 | Gas Operator | Dec 2025 |
| 26518 | Skull Creek A LLC | Douglas, WY 82633 | Oil & Gas Operator | Feb 2026 |
| 26519 | Skull Creek Oil & Gas LLC | | Oil Operator | Apr 2026 |
| 26520 | Sky Development Corporation | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 26521 | Sky Oil, L.L.C. | St. Paul, KS 66771 | Oil Operator | Dec 2004 |
| 26522 | Sky Resources, Inc. | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 26523 | Skybridge Energy LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2026 |
| 26524 | Skycap Energy, LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Sep 2026 |
| 26525 | Skye MS, LLC | | Oil & Gas Operator | Dec 2025 |
| 26526 | Skyhawk Energy, LLC | | Oil Operator | Dec 2024 |
| 26527 | Skyline Oil Company | Salt Lake City, UT 84111 | Oil & Gas Operator | Jan 1987 |
| 26528 | Skyline Operating Company, LLC | Alpine, UT 84004 | Oil & Gas Operator | May 2026 |
| 26529 | Skyliner Energy LLC | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2025 |
| 26530 | Skytop Oil & Gas | Giddings, TX 78942 | Oil & Gas Operator | Sep 2026 |
| 26531 | Skyway Energy LLC | Leesburg, OH 34748 | Oil & Gas Operator | Dec 2020 |
| 26532 | SKZ Inc. | | Oil Operator | Mar 1988 |
| 26533 | Slack Oil & Gas | Refugio, TX 78377 | Oil & Gas Operator | Dec 2012 |
| 26534 | Slack, R. C. | Pecos, TX 79772 | Oil & Gas Operator | Jul 2000 |
| 26535 | Slagel, H. P. Prod. Co. | Snyder, TX 79550 | Oil & Gas Operator | Dec 2006 |
| 26536 | Slam Resources, Inc. | | Oil & Gas Operator | Apr 1994 |
| 26537 | Slant Operating, LLC | Lafayette, LA 70503 | Oil & Gas Operator | Sep 2026 |
| 26538 | Slapco - Emerald Exploration | | Gas Operator | Sep 1979 |
| 26539 | Slape Oil Company, Inc. | Houston, TX 77064 | Oil & Gas Operator | Jun 2011 |
| 26540 | Slate Holdings, Inc. | Mineral Wells, TX 76068 | Oil & Gas Operator | Sep 2026 |
| 26541 | Slate River Resources LLC | Denver, CO 80293 | Oil & Gas Operator | Apr 2008 |
| 26542 | Slatex Well Service, Inc. | Batson, TX 77519 | Oil Operator | Sep 2026 |
| 26543 | Slaughter J M Oil Company | Fort Worth, TX 76116 | Oil & Gas Operator | Jan 2001 |
| 26544 | Slaughter, Norman C. | | Oil & Gas Operator | Dec 2012 |
| 26545 | Slavens II Paul R | Tulsa, OK 74131 | Oil & Gas Operator | Jun 2026 |
| 26546 | Slawson Clifford Ray | Healdton, OK 73438 | Oil Operator | Jan 1995 |
| 26547 | Slawson Donald C | Wichita, KS 67202 | Oil & Gas Operator | Apr 2026 |
| 26548 | Slawson Explorat | | Oil & Gas Operator | Dec 1996 |
| 26549 | Slawson Exploration Company Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2026 |
| 26550 | Slayton Resources Inc | Roswell, NM 88202 | Oil & Gas Operator | May 2026 |
| 26551 | Sledge Bros. Oil Co. | Midland, TX 79702 | Oil & Gas Operator | Mar 2016 |
| 26552 | Sledge Olen | Duncan, OK 73533 | Oil Operator | Jun 2026 |
| 26553 | Sledge, H. G., Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2016 |
| 26554 | Sleeth And Brooks Oil Co. | | Oil Operator | Jul 1989 |
| 26555 | Slick Inc. | MC Gregor, TX 76657 | Oil Operator | Sep 2026 |
| 26556 | Slick Production Inc | Tulsa, OK 74132-1718 | Oil & Gas Operator | Apr 2020 |
| 26557 | Slick Production, LLC | Muenster, TX 76252 | Oil & Gas Operator | Nov 2025 |
| 26558 | Slik-Dril P & A Inc | | Oil & Gas Operator | Sep 1989 |
| 26559 | Slik-Dril, Inc | | Oil & Gas Operator | Nov 1998 |
| 26560 | Slim Hole Inc | Farmington, NM 87401-7725 | Oil & Gas Operator | May 2013 |
| 26561 | Slingshot Oil & Gas | Houston, TX 77019 | Oil Operator | Sep 2026 |
| 26562 | Slinkard, Roberta S | | Oil Operator | Jun 2026 |
| 26563 | Sliverville Oil Co LLC | | Oil & Gas Operator | Dec 2025 |
| 26564 | SLMW Energy Comp | | Oil Operator | Jan 1989 |
| 26565 | Slo Oil, LLC | El Dorado, KS 67042 | Oil Operator | Dec 2025 |
| 26566 | Sloan Oil Corporation | Humble, TX 77347 | Oil & Gas Operator | Mar 2015 |
| 26567 | Sloan Operations | | Oil Operator | May 2026 |
| 26568 | Sloan Petroleum Inc. | Midland, TX 79710 | Oil & Gas Operator | Sep 2026 |
| 26569 | Sloan Petroleum Service Inc | Guthrie, OK 73044 | Oil & Gas Operator | Jul 2026 |
| 26570 | Sloan Production Co | | Oil Operator | Jan 2013 |
| 26571 | Slohcin, Inc. | Shelby, MT 59474 | Oil Operator | Jun 2026 |
| 26572 | Slone Energy, LLC | Oil Springs, KY 41238 | Oil & Gas Operator | Dec 2024 |
| 26573 | Slone, VIctor R | | Oil Operator | Jun 2026 |
| 26574 | Slow Poke Production-George L. Dobson Dba | Cut Bank, MT 59427 | Gas Operator | Jun 2026 |
| 26575 | Slow Stroke Productions LLC | | Oil Operator | May 2026 |
| 26576 | SLS Operating LLC | Seminole, OK 74868-5876 | Oil & Gas Operator | Jun 2026 |
| 26577 | SLT Dakota Operating, Inc. | Yukon, OK 73099 | Oil & Gas Operator | Sep 2026 |
| 26578 | SLT Production LLC | Sheffield, PA 16347-0547 | Oil & Gas Operator | Dec 2025 |
| 26579 | Sludge Treating, LLC | Hobbs, NM 88240 | Oil Operator | Jul 2026 |
| 26580 | SM Energy | Denver, CO 80203-4361 | Gas Operator | Feb 2015 |
| 26581 | SM Energy Company | Midland, TX 79707 | Oil & Gas Operator | Sep 2026 |
| 26582 | SM Oil & Gas Inc | Skiatook, OK 74070 | Oil & Gas Operator | Jun 2026 |
| 26583 | SM Operating Company LLC | Austin, TX 78709 | Oil & Gas Operator | Sep 2026 |
| 26584 | SM&O LLC | | Oil & Gas Operator | Jul 2026 |
| 26585 | Smackco, LTD. | | Oil & Gas Operator | Oct 2002 |
| 26586 | Smackover Drilling Co. Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Jan 2025 |
| 26587 | Smackover Oil Treaters, LTD. | Odessa, TX 79768 | Oil & Gas Operator | Sep 2026 |
| 26588 | Smackover Producing Co | | Oil & Gas Operator | Jan 2025 |
| 26589 | Smackover Shell LTD. Partnership | Houston, TX 77001 | Gas Operator | Apr 2000 |
| 26590 | Smail Denny Lee | Harvey, LA 70058 | Oil & Gas Operator | Dec 2025 |
| 26591 | Smail, James R. | Big Prairie, OH 44611 | Oil & Gas Operator | Dec 1998 |
| 26592 | Smal Energy Corp | Tyler, TX 75710 | Oil & Gas Operator | Oct 1995 |
| 26593 | Small, Louis E. | Orchard Park, NY 14127 | Gas Operator | Dec 2025 |
| 26594 | Small, R.P. Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2026 |
| 26595 | Smalley, Bill | Albany, TX 76430 | Oil & Gas Operator | Jul 2001 |
| 26596 | Smart Jr T J | Ryan, OK 73565 | Oil Operator | Sep 1994 |
| 26597 | Smart Service & Equipment LLC | Muskogee, OK 74401-5262 | Oil Operator | Aug 2013 |
| 26598 | SMC Oil & Gas, Inc. | Midland, TX 79710 | Oil & Gas Operator | Sep 2026 |
| 26599 | Sme Well SVC Inc | Herman, PA 16039-0156 | Oil & Gas Operator | Dec 2025 |
| 26600 | SMG Resources LLC | | Oil & Gas Operator | May 2026 |