| 27001 | Shepard James | Beggs, OK 74421 | Oil & Gas Operator | Feb 2024 |
| 27002 | Shepler & Thomas | | Oil & Gas Operator | Oct 1992 |
| 27003 | Shepler & Thomas, Inc. | Edmond, OK 73013 | Oil & Gas Operator | Jun 2025 |
| 27004 | Shepperd, William M. | Houston, TX 77279 | Oil & Gas Operator | Sep 2012 |
| 27005 | Sher-Lon Corpora | | Oil Operator | Apr 1994 |
| 27006 | Sheri-Di Product | | Oil Operator | Apr 1994 |
| 27007 | Sheridan Energy,Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2000 |
| 27008 | Sheridan Production Co III, LLC | Houston, TX 77056 | Oil & Gas Operator | Dec 2025 |
| 27009 | Sheridan Production Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Oct 2025 |
| 27010 | Sherley, O. C. | Megargel, TX 76370 | Oil & Gas Operator | Aug 2003 |
| 27011 | Sherman F Wagenseller | Denver, CO 80210 | Gas Operator | Apr 2016 |
| 27012 | Sherman Havens | | Oil & Gas Operator | Oct 2025 |
| 27013 | Sherman Larry Oil Company | Chandler, OK 74834 | Oil & Gas Operator | Mar 2015 |
| 27014 | Sherman Michael | Canton, OH 44735 | Oil & Gas Operator | Dec 2007 |
| 27015 | Sherman Oil & Gas Co Inc | Chandler, OK 74834-0571 | Oil & Gas Operator | Apr 2020 |
| 27016 | Sherman Oil & Gas, L.L.C. | Chandler, OK 74834 | Oil & Gas Operator | Oct 2025 |
| 27017 | Sherman Oil Company LLC | Wichita Falls, TX 76308 | Oil Operator | Apr 2025 |
| 27018 | Sherman, L. B. | Early, TX 76803 | Oil & Gas Operator | Jun 1998 |
| 27019 | Sherred Homer G And Fleeharty Willie W | | Oil & Gas Operator | Jun 1991 |
| 27020 | Sherrill Bob G | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2015 |
| 27021 | Sherry'S Oil Company | Terral, OK 73569 | Oil Operator | Oct 2000 |
| 27022 | Shertzer Charles F | Kilgore, TX 75662 | Oil Operator | Nov 2005 |
| 27023 | Shewey, C. F., Agent | | Oil & Gas Operator | Dec 2008 |
| 27024 | Shideler Enterprises Inc | Drumright, OK 74030 | Oil & Gas Operator | Feb 2019 |
| 27025 | Shideler, Dean | | Oil & Gas Operator | Dec 1997 |
| 27026 | Shidler Well Service | Vinita, OK 74301-5468 | Oil Operator | Dec 2000 |
| 27027 | Shidler, Mark L., Inc. | Houston, TX 77055 | Oil & Gas Operator | Dec 2025 |
| 27028 | Shield Energy Resources, LLC | | Oil Operator | Dec 2024 |
| 27029 | Shield Operating Co. | Georgetown, TX 78627 | Oil & Gas Operator | Aug 2003 |
| 27030 | Shield Petroleum | College Sta, TX 77845 | Oil & Gas Operator | Dec 2025 |
| 27031 | Shield Resources Inc | | Oil & Gas Operator | Nov 1987 |
| 27032 | Shields Cooper | Bonita Springs, FL 34135-3421 | Oil & Gas Operator | Jan 2011 |
| 27033 | Shields Energy Inc | Fort Smith, AR 72901-4607 | Oil & Gas Operator | Oct 2025 |
| 27034 | Shields Oil Prod | | Oil & Gas Operator | Aug 1995 |
| 27035 | Shields Oil Producers Inc. | Russell, KS 67665 | Oil Operator | Jun 2025 |
| 27036 | Shields Operating Inc | Fort Smith, AR 72901-3834 | Oil & Gas Operator | Oct 2021 |
| 27037 | Shields VIrginia | Kellyville, OK 74039 | Oil & Gas Operator | Oct 2025 |
| 27038 | Shields Well Service Corp | Stroud, OK 74079-3410 | Oil & Gas Operator | Dec 2017 |
| 27039 | Shields, Timothy R. & Donnalee F. | Randolph, NY 14772 | Gas Operator | Dec 2024 |
| 27040 | Shifflett Operating Company | Snyder, TX 79550 | Oil & Gas Operator | Dec 2025 |
| 27041 | Shiloh Creek Resources, Inc. | | Gas Operator | Nov 2024 |
| 27042 | Shiloh E Hall | Okmulgee, OK 74447 | Oil Operator | Sep 2025 |
| 27043 | Shiloh Oil Company LLC | Williston, FL 32696 | Oil & Gas Operator | Dec 2025 |
| 27044 | Shiner Exploration, LLC | Houston, TX 77091 | Oil & Gas Operator | Dec 2025 |
| 27045 | Shines'S Oil Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Oct 2009 |
| 27046 | Shinnery Oil Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 27047 | Shiny One Operating Company, LLC | Vernal, UT 84078 | Oil & Gas Operator | Oct 2025 |
| 27048 | Shipman James E Dba Lazy J Oil Co | Hallett, OK 74034 | Oil Operator | Sep 2025 |
| 27049 | Shirk, Benjamin H. III & Arlene M. | Penn Yan, NY 14527 | Gas Operator | Dec 2024 |
| 27050 | Shirley M. Lechler | | Oil & Gas Operator | Dec 2001 |
| 27051 | Shirley, B. J. | Lawn, TX 79530 | Oil & Gas Operator | Mar 2008 |
| 27052 | Shivers, Linward, Operator | Shreveport, LA 71161 | Oil & Gas Operator | Sep 1997 |
| 27053 | SHL Operating | Lubbock, TX 79416 | Oil & Gas Operator | Dec 2025 |
| 27054 | Sho-Bar Energy I | | Oil & Gas Operator | Jan 1991 |
| 27055 | Sho-Bar Energy Inc | Harper, KS 67058 | Oil & Gas Operator | Sep 2025 |
| 27056 | Shocker Energy, Inc. | | Oil & Gas Operator | Oct 1992 |
| 27057 | Shockley Jimmie D | Morris, OK 74445-2754 | Oil Operator | Sep 2025 |
| 27058 | Shoco Production LLC | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2025 |
| 27059 | Shoco Production, L.P. | Kilgore, TX 75663 | Oil & Gas Operator | May 2020 |
| 27060 | Shofner Oil Company | Chushing,, OK 74023 | Oil & Gas Operator | Feb 2003 |
| 27061 | Shongaloo Midstream, LLC | | Oil Operator | Mar 2019 |
| 27062 | Shongum Oil & Gas Inc | Akron, OH 44312 | Oil & Gas Operator | Dec 2011 |
| 27063 | Shootin Star Oil, L.L.C. | Natalia, TX 78059 | Oil Operator | Dec 2025 |
| 27064 | Shore Oil Company | | Oil & Gas Operator | May 1998 |
| 27065 | Shore Petroleum Corp. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Dec 2025 |
| 27066 | Shore Production Co. | Longview, TX 75604 | Oil & Gas Operator | Aug 2005 |
| 27067 | Shoreham Oil & Gas Company, Inc. | Katy, TX 77492 | Oil & Gas Operator | Dec 2025 |
| 27068 | Shoreline Energy Partners, LLC | Chandler, AZ 85249 | Oil Operator | May 2011 |
| 27069 | Shoreline Exploration Of Texas | | Oil & Gas Operator | Oct 2000 |
| 27070 | Shoreline Exploration, Inc. | | Oil & Gas Operator | Jul 1990 |
| 27071 | Shoreline GP LLC | | Oil & Gas Operator | Jun 2012 |
| 27072 | Shoreline Offshore LLC | | Oil & Gas Operator | Jun 2017 |
| 27073 | Shoreline Oil & Gas Company | Farmington, NM 87402 | Gas Operator | Oct 2019 |
| 27074 | Shoreline Operating LLC | Oklahoma City, OK 73113 | Oil & Gas Operator | Oct 2025 |
| 27075 | Shoreline Petroleum Corp. | Channelview, TX 77530 | Oil & Gas Operator | Sep 2003 |
| 27076 | Shoreline Pipeline Corporation | | Oil Operator | Dec 2020 |
| 27077 | Shoreline Production Serv., Inc. | Rockport, TX 78381 | Oil & Gas Operator | Apr 2002 |
| 27078 | Shoreline Southeast LLC | | Oil & Gas Operator | Jun 2017 |
| 27079 | Shorewood Farms | Lakeview, NY 14085 | Gas Operator | Dec 2024 |
| 27080 | Short Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Aug 2025 |
| 27081 | Short W D Oil Co | | Oil Operator | Mar 1996 |
| 27082 | Short W D Oil Company LLC | Oxford, KS 67119-0729 | Oil Operator | Aug 2025 |
| 27083 | Short W D Revocable Trust | Oxford, KS 67119-0729 | Oil & Gas Operator | Mar 2015 |
| 27084 | Short, Dan | | Oil Operator | Dec 1963 |
| 27085 | Shortgrass Petroleum Inc | Laverne, OK 73848-0139 | Oil & Gas Operator | Oct 2025 |
| 27086 | Shorts Production LLC | Havana, KS 67347 | Oil Operator | Jun 2025 |
| 27087 | Shoshone Oil And Gas Inc | Lindsay, OK 73052-0217 | Oil & Gas Operator | Jan 2020 |
| 27088 | Shoshone Oil Company | Dallas, TX 75244 | Oil & Gas Operator | May 1994 |
| 27089 | Shoshone Oil Corp. | | Oil & Gas Operator | Dec 2005 |
| 27090 | Shouse, Micheal C. | Liberty, MO 64068 | Oil & Gas Operator | Jan 1996 |
| 27091 | Showdown Energy Corporation | Dallas, TX 75230 | Oil & Gas Operator | Aug 2003 |
| 27092 | Showdown Operating, Inc. | Dallas, TX 75230 | Oil & Gas Operator | May 1996 |
| 27093 | Showhorn Holding Co., L.L.C. | Normangee, TX 77871 | Oil Operator | Dec 2025 |
| 27094 | Shrider W E Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1991 |
| 27095 | Shriver Earl J | Lawton, OK 73507-5851 | Oil & Gas Operator | Aug 2013 |
| 27096 | Shriver Operating LLC | Lawton, OK 73507-5851 | Oil & Gas Operator | Sep 2025 |
| 27097 | SHS Operating Company | Shreveport, LA 71149 | Oil & Gas Operator | Jan 2025 |
| 27098 | Shubuta Oil Corporation | Houston, TX 77056 | Oil & Gas Operator | Sep 1998 |
| 27099 | Shufflin Energy | | Oil & Gas Operator | Sep 2011 |
| 27100 | Shuler Drilling Co., Inc. | El Dorado, AR 71730 | Oil & Gas Operator | Jan 2025 |