| 25901 | Sam Myers | | Oil & Gas Operator | Nov 1988 |
| 25902 | Sam R. Brown | | Oil Operator | Mar 1987 |
| 25903 | Sam Spears, Jr. | | Oil & Gas Operator | Sep 1998 |
| 25904 | Sam W Mays Jr LLC | Eureka, KS 67045 | Oil & Gas Operator | Apr 2018 |
| 25905 | Samantha Petroleum Corp. | | Oil & Gas Operator | Apr 1987 |
| 25906 | Samco | Whitesboro, TX 76273 | Oil & Gas Operator | Aug 2013 |
| 25907 | Samco Investments | | Oil Operator | Feb 2025 |
| 25908 | Samco Oil & Gas Co. | Granbury, TX 76048 | Gas Operator | Feb 2002 |
| 25909 | Samedan Energy Development Cor | | Oil & Gas Operator | Feb 1987 |
| 25910 | Samedan Oil Corp. -Offshore Div. | Houston, TX 77067 | Oil & Gas Operator | Dec 2002 |
| 25911 | Samedan Oil Corp. Et Al | | Oil & Gas Operator | Jan 1989 |
| 25912 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
| 25913 | Samhill LLC | Tonkawa, OK 74653-5533 | Oil & Gas Operator | Mar 2025 |
| 25914 | Samis Oil Company, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Sep 2000 |
| 25915 | Sammax Operating LLC | Snyder, TX 79549 | Oil Operator | Jun 2025 |
| 25916 | Sammy D. Thrash | | Oil & Gas Operator | May 2012 |
| 25917 | Sammy D. Thrash, LLC | | Oil & Gas Operator | May 2019 |
| 25918 | Sample Exploration | | Oil & Gas Operator | Jul 2002 |
| 25919 | Samples James F | Brinkhaven, OH 43006 | Oil & Gas Operator | Dec 2021 |
| 25920 | Sampson Operators | | Oil & Gas Operator | Apr 2025 |
| 25921 | Sampson, Lowell | | Oil & Gas Operator | Dec 2001 |
| 25922 | Sams Energy, Inc. | Abilene, TX 79604 | Oil & Gas Operator | May 1998 |
| 25923 | Samson Contour Energy E&P, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2017 |
| 25924 | Samson Exploration LLC | Tulsa, OK 74101 | Oil & Gas Operator | Apr 2025 |
| 25925 | Samson Gas Producing Company | Tulsa, OK 74103 | Oil & Gas Operator | May 2001 |
| 25926 | Samson Hydrocarbons Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2016 |
| 25927 | Samson Kelley Operating Co., LTD. | | Oil & Gas Operator | Feb 2004 |
| 25928 | Samson Lone Star LP | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2007 |
| 25929 | Samson Lone Star, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2025 |
| 25930 | Samson Natural Gas Co | | Oil & Gas Operator | Oct 1992 |
| 25931 | Samson Natural Gas Co And Miller Energy Miller Oil | | Oil & Gas Operator | Aug 2000 |
| 25932 | Samson Oil & Gas USA Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 2025 |
| 25933 | Samson Oil Company | | Oil & Gas Operator | Feb 2001 |
| 25934 | Samson Properties, Incorporated | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2008 |
| 25935 | Samson Res Co | Tulsa, OK 74103-3103 | Gas Operator | Jan 2015 |
| 25936 | Samson Resources | | Oil Operator | Jan 1994 |
| 25937 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2025 |
| 25938 | Samson Resources Company LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2021 |
| 25939 | Samuel Dale Hughes Dba Hughes Drilling Co. | Artesia, NM 88211026 | Oil Operator | Apr 2025 |
| 25940 | Samuel Gary Jr. & Associates, Inc. | Denver, CO 80202 | Oil & Gas Operator | Feb 2025 |
| 25941 | Samuel Gary Jr. And Assoc., Inc. | | Oil & Gas Operator | Mar 2023 |
| 25942 | Samuel Jackson Production Co | | Oil Operator | Feb 2025 |
| 25943 | Samuel Joe L | Tulsa, OK 74135-7805 | Oil & Gas Operator | Jan 2001 |
| 25944 | Samuelson, Peter Philip | Bemus Point, NY 14712 | Gas Operator | Dec 2023 |
| 25945 | Samurai Operating Co. L.L.C. | Dayton, TX 77535 | Oil & Gas Operator | Jun 2025 |
| 25946 | San Angelo Cetco, Inc. | San Angelo, TX 76901 | Oil & Gas Operator | Mar 1998 |
| 25947 | San Antonio Gas & Oil, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Feb 2000 |
| 25948 | San Cajo Oil Company | Edmonds, WA 98020 | Oil & Gas Operator | Jun 2025 |
| 25949 | San Carlos Oil & Gas Corp. | | Gas Operator | Dec 2003 |
| 25950 | San Dia Producing Company | Deanville, TX 77852 | Oil & Gas Operator | Jun 2025 |
| 25951 | San Francisco-Okla Pet Ex Inc | | Oil & Gas Operator | Apr 2014 |
| 25952 | San Isidro Development Co, L. C. | Sandia, TX 78383 | Oil & Gas Operator | Jun 2025 |
| 25953 | San Joaquin Facilities Management Inc. | | Oil & Gas Operator | Apr 2025 |
| 25954 | San Juan Minerals Explor | Mexican Hat, UT 84531 | Oil & Gas Operator | Apr 2006 |
| 25955 | San Juan Resources, Inc. | Denver, CO 80202 | Oil & Gas Operator | Apr 2025 |
| 25956 | San Juan Services, Inc. | Farmington, NM 87402 | Oil Operator | Dec 2011 |
| 25957 | San Marco Petroleum Inc | Denver, CO 80293 | Oil & Gas Operator | Apr 2025 |
| 25958 | San Miguel Oil & Gas, Inc. | | Oil & Gas Operator | Jan 1993 |
| 25959 | San Patricio Corporation | Dinero, TX 78350 | Oil & Gas Operator | Sep 2003 |
| 25960 | San Pet Inc | McPherson, KS 67460 | Oil Operator | May 1997 |
| 25961 | San Saba Energy | Hays, KS 67601 | Oil Operator | May 1998 |
| 25962 | Sananco Energy C | | Oil Operator | Aug 1987 |
| 25963 | Sananco Energy Corp | Naples, FL 33941 | Oil & Gas Operator | Jul 2013 |
| 25964 | Sanare Energy Partners, LLC | | Oil & Gas Operator | Dec 2024 |
| 25965 | Sanchez Exploration Company LLC | Houston, TX 77056 | Oil & Gas Operator | Oct 2024 |
| 25966 | Sanchez Oil & Gas Corporation | Houston, TX 77056 | Oil & Gas Operator | Jun 2025 |
| 25967 | Sanchez Production, LLC | Pampa, TX 79065 | Oil & Gas Operator | Jun 2025 |
| 25968 | Sanchez-O'Brien | | Oil & Gas Operator | Dec 1984 |
| 25969 | Sanchez-O'Brien Oil & Gas Corp | Houston, TX 77057 | Oil & Gas Operator | May 1998 |
| 25970 | Sanchez-Obrien Oil & Gas | | Oil & Gas Operator | Aug 1986 |
| 25971 | Sancho Oil & Gas LLC | | Oil & Gas Operator | Dec 2021 |
| 25972 | Sanco Operating Company | Bullard, TX 75757 | Oil & Gas Operator | Jun 2025 |
| 25973 | Sand Bar Oil Com | | Oil Operator | Jun 1986 |
| 25974 | Sand Boy Production Company | Bartlesville, OK 74003-9273 | Oil & Gas Operator | Jan 2025 |
| 25975 | Sand Creek Oil Co., Inc. | Lubbock, TX 79413 | Oil & Gas Operator | Jul 2012 |
| 25976 | Sand Creek Resources LLC | Woodward, OK 73801-5222 | Oil & Gas Operator | Apr 2025 |
| 25977 | Sand Dollar Ener | | Oil Operator | Aug 1984 |
| 25978 | Sand Dollar, LLC | Henderson, KY 42420 | Oil & Gas Operator | Dec 2018 |
| 25979 | Sand Hawk, LLC | Devers, TX 77538 | Oil & Gas Operator | Jun 2025 |
| 25980 | Sand Hill, LTD. | | Gas Operator | Dec 2024 |
| 25981 | Sand Hills Society | | Gas Operator | Oct 2009 |
| 25982 | Sand Point LLC | Oklahoma City, OK 73132 | Oil & Gas Operator | Dec 2020 |
| 25983 | Sand Point Production Inc | Oklahoma City, OK 73172 | Oil & Gas Operator | Mar 2025 |
| 25984 | Sand Resources LLC | Norman, OK 73072-4805 | Oil & Gas Operator | Aug 2012 |
| 25985 | Sand River O & E LLC | Amarillo, TX 79107 | Gas Operator | Dec 2004 |
| 25986 | Sand Springs Oil & Gas Co. | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2025 |
| 25987 | Sandalwood Exploration, L.P. | Houston, TX 77056 | Oil & Gas Operator | Jun 2025 |
| 25988 | Sandalwood Oil & Gas, Inc. | Houston, TX 77057 | Oil & Gas Operator | Jun 2025 |
| 25989 | Sandbar Oil & Gas Co | Lewisville, OH 43754 | Oil & Gas Operator | Dec 2024 |
| 25990 | Sandco Oil & Gas, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2015 |
| 25991 | Sandefer & Andress, Inc. | | Oil & Gas Operator | Apr 1982 |
| 25992 | Sandefer Larry | | Oil Operator | Aug 1993 |
| 25993 | Sandefer Petroleum Co. | | Oil & Gas Operator | Apr 1994 |
| 25994 | Sandel Energy, Inc. | Huntsville, TX 77342 | Oil & Gas Operator | Apr 2004 |
| 25995 | Sandel Operating Company | Huntsville, TX 77340 | Oil & Gas Operator | Jun 2025 |
| 25996 | Sanders & Smith, L.C. | Amarillo, TX 79110 | Oil & Gas Operator | Mar 2004 |
| 25997 | Sanders Energy LLC | Aledo, TX 76008 | Oil & Gas Operator | Jun 2025 |
| 25998 | Sanders Oil & Gas Co | Tyler, TX 75711 | Gas Operator | Aug 2017 |
| 25999 | Sanders Oil & Gas, LTD. | Granbury, TX 76048 | Oil & Gas Operator | Aug 2015 |
| 26000 | Sanders Petroleum Corp | Roswell, NM 88201 | Gas Operator | Oct 1996 |