| 27001 | Smith, Donald B | | Oil Operator | Dec 2020 |
| 27002 | Smith, Donald B (Deceased) | Calhoun, KY 42327 | Oil Operator | Dec 2023 |
| 27003 | Smith, Donnie D. | Coleman, TX 76834 | Gas Operator | Oct 2017 |
| 27004 | Smith, E. J. | Fort Worth, TX 76137 | Oil & Gas Operator | Nov 2025 |
| 27005 | Smith, E.N. III Energy Corp. | Marshall, TX 75671 | Oil & Gas Operator | Sep 2006 |
| 27006 | Smith, Edward J. | Clifton, NJ 07013 | Oil & Gas Operator | Dec 1995 |
| 27007 | Smith, Frederick H. | Auburn, NY 13021 | Gas Operator | Dec 2024 |
| 27008 | Smith, Gordon R. | Madison, KS 66860 | Oil Operator | Nov 1998 |
| 27009 | Smith, J.V. Oil Company | Dallas, TX 75248 | Gas Operator | Jul 2025 |
| 27010 | Smith, James E DRLG Co | | Oil Operator | Dec 2010 |
| 27011 | Smith, Joe H. | Argyle, TX 76226 | Oil & Gas Operator | Nov 1998 |
| 27012 | Smith, Joe T., Inc. | Hawley, TX 79525 | Oil & Gas Operator | Nov 2025 |
| 27013 | Smith, John A. | Midland, TX 79702 | Oil & Gas Operator | Nov 2025 |
| 27014 | Smith, L C Production | Jacksonville, TX 75766 | Oil Operator | Nov 2025 |
| 27015 | Smith, L. C. | Jacksonville, TX 75766 | Oil & Gas Operator | Nov 2025 |
| 27016 | Smith, Loren E. And Foster, Chas. P. | Broomfield, CO 80020 | Oil Operator | Jul 2025 |
| 27017 | Smith, Loren L. | Oswego, KS 67356 | Oil & Gas Operator | Sep 2009 |
| 27018 | Smith, Loretta Sue | Park City, KY 42160 | Oil Operator | Dec 2023 |
| 27019 | Smith, Mark A. & Laurel A. | South Dayton, NY 14138 | Gas Operator | Dec 2024 |
| 27020 | Smith, Marvin M. | Orchard Park, NY 14127 | Gas Operator | Dec 2024 |
| 27021 | Smith, O. Dale & Smith, A. C. | Amarillo, TX 79110 | Oil & Gas Operator | Mar 2000 |
| 27022 | Smith, R. E. Interests, Inc. | Houston, TX 77027 | Oil & Gas Operator | Mar 1998 |
| 27023 | Smith, Rodney L. | Wellsville, NY 14895 | Oil & Gas Operator | Dec 2024 |
| 27024 | Smith, Roger G | Magnolia, AR 71753 | Oil Operator | Jan 2025 |
| 27025 | Smith, Ronald L. | Bolivar, NY 14715 | Oil Operator | Dec 2024 |
| 27026 | Smith, Ted H. | Wichita Falls, TX 76310 | Oil & Gas Operator | Sep 1998 |
| 27027 | Smith, W. Don | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2001 |
| 27028 | Smith, W.T. | Panhandle, TX 79068 | Oil & Gas Operator | Nov 2005 |
| 27029 | Smith, Walter E | Grantsville, WV 26147-0000 | Oil & Gas Operator | Dec 2021 |
| 27030 | Smith, William M | | Oil & Gas Operator | Jul 2025 |
| 27031 | Smith, Yvonne C. And Robert M. | Delevan, NY 14042 | Gas Operator | Dec 2024 |
| 27032 | Smith-Clement Exploration Inc | Edmond, OK 73013 | Oil Operator | Jul 1997 |
| 27033 | Smith-Wentworth | | Oil & Gas Operator | Sep 1983 |
| 27034 | Smith-Wentworth & Coquina | | Oil Operator | Jun 1983 |
| 27035 | Smith-Wentworth & Hughes & New | | Oil Operator | Jun 1983 |
| 27036 | Smithberger John D | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 27037 | Smithco Oil & Gas Inc | Edmonton, KY 42129 | Oil Operator | Dec 2023 |
| 27038 | Smither Energy Co LLC | Broken Arrow, OK 74011-7615 | Oil & Gas Operator | Nov 2020 |
| 27039 | Smitherman, Leon C., Jr. | Andover, KS 67002 | Oil Operator | Dec 2019 |
| 27040 | Smiths Investment Inc | Sperry, OK 74073-4198 | Oil Operator | Jun 2025 |
| 27041 | SMK-La, Inc. | | Oil & Gas Operator | Sep 1999 |
| 27042 | Smokey Gap Oil Company LLC | | Oil Operator | Aug 2025 |
| 27043 | Smokey Oil Company Inc | Casper, WY 82601 | Oil & Gas Operator | Dec 1996 |
| 27044 | Smokey Trail LLC | Thornton, CO 80241 | Oil & Gas Operator | Aug 2025 |
| 27045 | Smokey Valley Resources | Lyons, KS 67554 | Oil Operator | Jun 1998 |
| 27046 | Smokey Valley Resources, Inc. | Geneseo, KS 67444 | Oil Operator | Nov 2008 |
| 27047 | Smoky Valley Res | | Oil & Gas Operator | Dec 1995 |
| 27048 | Smoot, Richard P | Salt Lake City, UT 84102 | Oil & Gas Operator | Oct 2010 |
| 27049 | SMR Natural Gas Ventures Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Jan 1999 |
| 27050 | Smucker Ronald O | Somerset, OH 43783 | Oil & Gas Operator | Dec 2003 |
| 27051 | Smulcer, Jimmy A. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2002 |
| 27052 | Smyth Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2003 |
| 27053 | Smyth Oil LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2025 |
| 27054 | SN Ef Maverick, LLC | Houston, TX 77002 | Oil & Gas Operator | Aug 2023 |
| 27055 | SN Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | May 2023 |
| 27056 | Snake Creek Oil & Gas Inc | Okmulgee, OK 74447-2041 | Oil & Gas Operator | Jul 2025 |
| 27057 | Snappy Services, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Nov 2025 |
| 27058 | SND Operating, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2025 |
| 27059 | Snedco, Inc. | Chickasha, OK 73023 | Oil Operator | May 2025 |
| 27060 | Snee & Eberly & People Natural Gas | Unknown, PA 15000 | Gas Operator | Dec 1986 |
| 27061 | Sneed Drilling Company | Cleveland, OK 74020 | Oil & Gas Operator | May 2025 |
| 27062 | Sneed William A Bill | Cleveland, OK 74020-1007 | Oil & Gas Operator | Jun 2025 |
| 27063 | Snelgrooes Oil Company Inc | Maysville, OK 73057-0631 | Oil & Gas Operator | Nov 2014 |
| 27064 | Snelgrooes Well Service Inc | Elmore City, OK 73433 | Oil & Gas Operator | May 2003 |
| 27065 | Snider Brothers | Gratiot, OH 43740 | Oil & Gas Operator | Dec 2015 |
| 27066 | Snider Russell E | Newark, OH 43055 | Oil & Gas Operator | Dec 2014 |
| 27067 | Snow Oil & Gas Inc. | Andrews, TX 79714 | Oil & Gas Operator | Nov 2025 |
| 27068 | Snow Oil Company | Nocona, TX 76255 | Oil Operator | Nov 2025 |
| 27069 | Snow Operating Co., Inc. | Haltom City, TX 76117 | Oil & Gas Operator | Feb 2024 |
| 27070 | Snow, Shannon | Gerry, NY 14733 | Gas Operator | Dec 2024 |
| 27071 | Snowy Owl LLC | Gillette, WY 82717 | Oil & Gas Operator | Aug 2025 |
| 27072 | SNR Central Oklahoma Operating LLC | Oklahoma City, OK 73116-7906 | Oil Operator | Aug 2025 |
| 27073 | SNR Kansas Operating, LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Dec 2019 |
| 27074 | SNR Operating, LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | Nov 2025 |
| 27075 | Snuffy'S Oilfield Service Inc | Hennessey, OK 73742-6511 | Oil & Gas Operator | Nov 2014 |
| 27076 | Snuggs Oil Company | Gainesville, TX 76240 | Oil & Gas Operator | Jan 2024 |
| 27077 | SNW Operating Company | Borger, TX 79008 | Oil & Gas Operator | Nov 2025 |
| 27078 | Snyder Bros Inc | Kittanning, PA 16201 | Oil & Gas Operator | Aug 2025 |
| 27079 | Snyder Brothers, Inc. | | Oil & Gas Operator | Dec 2018 |
| 27080 | Snyder Drilling Corp. | Albany, TX 76430 | Oil & Gas Operator | Nov 2025 |
| 27081 | Snyder K E Compa | | Oil Operator | Jul 1987 |
| 27082 | Snyder Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2015 |
| 27083 | Snyder Oil Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 2008 |
| 27084 | Snyder Oper Partnership | FT Worth, TX 76102 | Gas Operator | Dec 1988 |
| 27085 | Snyder Partners | Cody, WY 82414 | Oil & Gas Operator | Aug 2025 |
| 27086 | Snyder Partners, General Partnership | Cody, WY 82414 | Oil & Gas Operator | Jul 2019 |
| 27087 | Snyder, Jim Estate (Deceased) | Hamilton, KS 66853 | Oil Operator | Dec 2009 |
| 27088 | Snyder, K. Lance | Hamilton, KS 66853 | Oil Operator | Nov 2004 |
| 27089 | Snyder, Kenneth L. | Springville, NY 14141 | Gas Operator | Dec 2024 |
| 27090 | Snyder, Larry G. | South Dayton, NY 14138 | Gas Operator | Dec 2024 |
| 27091 | Snyder, Robert R | | Oil Operator | Dec 2012 |
| 27092 | So & Jo, LLC | Kansas City, MO 64158 | Oil Operator | Dec 2021 |
| 27093 | So Operating Company | Cisco, TX 76437 | Oil & Gas Operator | Nov 2025 |
| 27094 | So-I , A General Partnership | Kansas City, MO 64106 | Oil & Gas Operator | Jun 2025 |
| 27095 | Soap Creek Associates, Inc. | Broomfield, CO 80020-2995 | Oil Operator | Jul 2025 |
| 27096 | Soc Resources Inc. | | Oil & Gas Operator | Dec 2024 |
| 27097 | Society Of Bros In Pa Inc | Farmington, PA 15437-0240 | Gas Operator | Dec 2024 |
| 27098 | Soco Gas Properties | Goliad, TX 77963 | Oil & Gas Operator | Nov 2025 |
| 27099 | Socorro Exploration, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Nov 2025 |
| 27100 | Socorro Pet Co | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 1995 |