| 27901 | Stewart Operating | | Oil Operator | Jul 2019 |
| 27902 | Stewart Petroleum Corporation | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Dec 2023 |
| 27903 | Stewart Producers | Lancaster, OH 43130 | Oil & Gas Operator | Dec 1984 |
| 27904 | Stewart Producers, Inc. | Mount Vernon, IL 62864 | Oil & Gas Operator | Mar 2025 |
| 27905 | Stewart Productions, LLC | May, TX 76857 | Oil & Gas Operator | Jul 2025 |
| 27906 | Stewart W C Oil | | Oil Operator | Jun 1986 |
| 27907 | Stewart, George W | | Oil Operator | Dec 2023 |
| 27908 | Stewart, James G. | Graham, TX 76450 | Oil & Gas Operator | Sep 2019 |
| 27909 | Stewart, William C. | Amarillo, TX 79105 | Gas Operator | May 2003 |
| 27910 | Stice Oil Company | | Oil Operator | Feb 2025 |
| 27911 | Stich Oil Company, A General Partnership | Chanute, KS 66720 | Oil Operator | Jul 2014 |
| 27912 | Stickney Oil & Gas, Inc. | Midland, TX 79704 | Oil & Gas Operator | Nov 2014 |
| 27913 | Stickney, F. C., Inc. | Midland, TX 79704 | Oil & Gas Operator | Oct 1998 |
| 27914 | Stidham Bob And Alice F | Sperry, OK 74073 | Oil Operator | Mar 2025 |
| 27915 | Stifter, Ralph E | Rantoul, KS 66079 | Oil Operator | Sep 2001 |
| 27916 | Stigler Gas Company | Stigler, OK 74462 | Gas Operator | Feb 2025 |
| 27917 | Stiglitz Raymond J | Franklin, PA 16323-7760 | Oil & Gas Operator | Dec 2013 |
| 27918 | Stiles, Carl W. | West Valley, NY 14171 | Gas Operator | Dec 2024 |
| 27919 | Still A B Wel-Service Inc | Drumright, OK 74030-0787 | Oil & Gas Operator | Jul 2019 |
| 27920 | Still Alex B Estate Of | Sagle, ID 83860-0644 | Oil & Gas Operator | Nov 2018 |
| 27921 | Stillwater Oil & Gas | Irving, TX 75062 | Oil & Gas Operator | Mar 2015 |
| 27922 | Stillwater Petroleum Company | College Sta, TX 77845 | Oil & Gas Operator | Nov 1997 |
| 27923 | Stine Massie Oil, LLC | Mansfield, TX 76063 | Oil Operator | Jul 2025 |
| 27924 | Stine Oil Company | Mansfield, TX 76063 | Oil Operator | Mar 2016 |
| 27925 | Stine, Ward L.Oil Company | Windthorst, TX 76389 | Oil & Gas Operator | Oct 1999 |
| 27926 | Stine-Hawkins | Mansfield, TX 76063 | Gas Operator | Jul 2025 |
| 27927 | Sting Exploration Company | Tulsa, OK 74120 | Oil Operator | Sep 2004 |
| 27928 | Stinger Oil & Gas Inc. | Sherman Oaks, CA 91403 | Oil & Gas Operator | Oct 2013 |
| 27929 | Stingray Oil Company, Inc. | Mullin, TX 76864 | Oil Operator | Jul 2025 |
| 27930 | Stinhall Corporation | | Oil & Gas Operator | Apr 1989 |
| 27931 | Stinnett Oil Company | | Oil Operator | Dec 1997 |
| 27932 | Stinson Gas Company, L.L.C. | | Gas Operator | Jul 2018 |
| 27933 | Stinson, Ernest Dba Logsdon Valley Oil | Horse Cave, KY 42749 | Oil Operator | Dec 2021 |
| 27934 | Stinson, Jan | | Oil Operator | May 1984 |
| 27935 | Stivers Inc | Graham, TX 76450 | Oil & Gas Operator | May 2003 |
| 27936 | Stivers Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 1995 |
| 27937 | Stiverson, R G Co, Inc | | Oil Operator | Dec 2011 |
| 27938 | Stixon Petroleum | | Oil Operator | Dec 1996 |
| 27939 | STL Oil & Gas LLC | Skiatook, OK 74070 | Oil & Gas Operator | Mar 2016 |
| 27940 | STL Resources LLC | Sewickley, PA 15143-8859 | Gas Operator | May 2025 |
| 27941 | Sto LLC | Pass Christian, MS 39571 | Oil & Gas Operator | Apr 2025 |
| 27942 | Sto Operating Company | San Antonio, TX 78258 | Oil & Gas Operator | Jul 2025 |
| 27943 | Stobaugh G B Trust | Oklahoma City, OK 73124 | Oil Operator | Dec 2024 |
| 27944 | Stober Oil And Gas Services, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2025 |
| 27945 | Stockdale Energy Co. | | Gas Operator | Dec 1992 |
| 27946 | Stockdale Oil & Gas Inc. | | Oil & Gas Operator | Dec 2001 |
| 27947 | Stocker & Sitler Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 2002 |
| 27948 | Stockyard Energy Partners, LLC | Calumet, OK 73014 | Oil Operator | May 2025 |
| 27949 | Stoeppelwerth DR | | Oil Operator | May 1993 |
| 27950 | Stokes Donna L | Blanchard, OK 73010 | Oil & Gas Operator | Jun 2023 |
| 27951 | Stoll, James G | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 27952 | Stoltz, Deane H. | Midland, TX 79710 | Oil & Gas Operator | Oct 2000 |
| 27953 | Stone & Webster Oil Company, Inc | Houston, TX 77002 | Oil & Gas Operator | Dec 1995 |
| 27954 | Stone & Williams Oil&Gas Co.,Inc | Holliday, TX 76366 | Oil Operator | Apr 2013 |
| 27955 | Stone & Wolf LLC | Sheridan, WY 82801 | Oil & Gas Operator | Dec 2006 |
| 27956 | Stone Cabin Resources LLC | | Oil & Gas Operator | May 2025 |
| 27957 | Stone Creek Brick Co | Stone Creek, OH 43840 | Oil & Gas Operator | Dec 2004 |
| 27958 | Stone Creek Operating, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Jul 2025 |
| 27959 | Stone Edge Energy, LLC | Georgetown, TX 78633 | Oil & Gas Operator | Jul 2025 |
| 27960 | Stone Energy Corporation | Denver, CO 80202-2828 | Oil & Gas Operator | Oct 2014 |
| 27961 | Stone Energy LLC | Denver, CO 80202 | Oil & Gas Operator | May 2005 |
| 27962 | Stone Mountain Petroleum, LLC | Houston, TX 77008 | Oil & Gas Operator | Aug 2002 |
| 27963 | Stone Oak Operating LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Apr 2025 |
| 27964 | Stone Oil Compan | | Oil Operator | Jan 1990 |
| 27965 | Stone Oil Corp & McMoran Expl | | Oil & Gas Operator | Oct 1984 |
| 27966 | Stone Oil Corp - Strata Energy | | Oil & Gas Operator | Mar 1982 |
| 27967 | Stone Oil Corp-Forest Oil Corp | | Oil & Gas Operator | Jan 1983 |
| 27968 | Stone Oil-Lamson-Onshore Pet. | | Oil & Gas Operator | May 1985 |
| 27969 | Stone Oil-Quasar-Birthright | | Oil & Gas Operator | Feb 1981 |
| 27970 | Stone Petroleum Corporation | | Oil & Gas Operator | Dec 1996 |
| 27971 | Stone Ridge Energy LLC | Uniontown, PA 15401-6831 | Oil & Gas Operator | May 2025 |
| 27972 | Stone River Energy Corp | Edmond, OK 73034 | Oil & Gas Operator | Jan 2014 |
| 27973 | Stone Thomas R | Coweta, OK 74429-3293 | Oil & Gas Operator | Mar 2020 |
| 27974 | Stone, B. W. | Holliday, TX 76366 | Oil & Gas Operator | Feb 2012 |
| 27975 | Stone, D J | Palo Alto, CA 94301 | Oil & Gas Operator | Sep 1985 |
| 27976 | Stone, Gregory W. | Holliday, TX 76366 | Oil & Gas Operator | Jul 2025 |
| 27977 | Stone, J. G. Oil Co. | Victoria, TX 77904 | Oil & Gas Operator | Sep 2018 |
| 27978 | Stone, M. L. | Kerrville, TX 78029 | Oil & Gas Operator | Aug 2003 |
| 27979 | Stonebriar Oil LLC | Frisco, TX 75034 | Oil & Gas Operator | Jul 2025 |
| 27980 | Stonebriar Operating, LLC | Plano, TX 75093 | Oil Operator | Jul 2025 |
| 27981 | Stonebridge Operating Co LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 27982 | Stoneburner Exploration, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Oct 1997 |
| 27983 | Stonegate Operators, Inc. | Addison, TX 75001 | Oil Operator | Jul 2025 |
| 27984 | Stonegate Production Company,LLC | Houston, TX 77024 | Oil & Gas Operator | Jul 2025 |
| 27985 | Stonegate Ranch LLC | Caney, KS 67333 | Oil Operator | Mar 2025 |
| 27986 | Stoneham Oil Company | Houston, TX 77002 | Oil & Gas Operator | Sep 1995 |
| 27987 | Stoneham Production LLC | | Oil & Gas Operator | May 2025 |
| 27988 | Stonehaven Energy MGT Co LLC | Clearfield, PA 16830-7342 | Oil & Gas Operator | Dec 2019 |
| 27989 | Stoner Oil | Corsicana, TX 75109 | Oil Operator | Jul 2025 |
| 27990 | Stoner, C. M. | Cleburne, TX 76031 | Oil & Gas Operator | Oct 1996 |
| 27991 | Stoneridge Oil Inc | Ponca City, OK 74601-1600 | Oil & Gas Operator | Jan 2001 |
| 27992 | Stoneriver Energy, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Jul 2025 |
| 27993 | Stonestreet, Vance | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2006 |
| 27994 | Stonetown Properties, LTD. | Amarillo, TX 79114 | Oil & Gas Operator | Dec 2016 |
| 27995 | Stonewall Gas Co | Jane Lew, WV 26378 | Oil & Gas Operator | Dec 1999 |
| 27996 | Stonewall Production Company Inc | Tyler, TX 75702 | Oil & Gas Operator | Aug 2009 |
| 27997 | Stoney Creek Production LLC | | Oil Operator | Jan 2025 |
| 27998 | Stoney Lake Production Co LLC | | Oil Operator | May 2025 |
| 27999 | Storch, Diane F. | Attica, NY 14011 | Gas Operator | Dec 2024 |
| 28000 | Storck Omer | Tulsa, OK 74105 | Oil Operator | Apr 1997 |