| 27801 | SS Operating LLC | Water Valley, TX 76958 | Oil Operator | May 2025 |
| 27802 | SSB Production LC | Ardmore, OK 73401 | Oil & Gas Operator | Feb 2025 |
| 27803 | SSC, Inc. | Lubbock, TX 79408 | Oil & Gas Operator | May 2025 |
| 27804 | Ssi Energy LLC | | Oil & Gas Operator | Jul 2021 |
| 27805 | SSM Partnership-PV79 | | Oil Operator | Jun 1989 |
| 27806 | Ssouri Oil Ventures | | Oil Operator | Jan 2022 |
| 27807 | St Croix LTD | Fairlawn, OH 44334 | Oil & Gas Operator | Dec 2022 |
| 27808 | St Croix Operating Inc | | Oil Operator | Mar 2025 |
| 27809 | St James Energy Operating Inc | | Oil & Gas Operator | Aug 2013 |
| 27810 | St Joe Petroleum U S Corp | | Oil & Gas Operator | Aug 2000 |
| 27811 | St Joseph Min Co | | Oil Operator | Dec 2023 |
| 27812 | St Michael Exploration | | Oil & Gas Operator | Jun 1987 |
| 27813 | St Oil Company | Denver, CO 80264-2101 | Oil & Gas Operator | Dec 2010 |
| 27814 | St Oil Company LLC | New York, NY 10005-4016 | Oil Operator | Feb 2025 |
| 27815 | St Petroleum, Inc. | Edgerton, KS 66021 | Oil Operator | Jan 2025 |
| 27816 | St. Cajetan Oil Company, LLC | Gainesville, TX 76240 | Oil & Gas Operator | May 2025 |
| 27817 | St. Clair Energy Corporation | Tulsa, OK 74153 | Oil & Gas Operator | Mar 2008 |
| 27818 | St. Clair Oil Co. | St Clairsville, OH 43950 | Oil & Gas Operator | Dec 1997 |
| 27819 | St. Columban'S On The Lake, Inc. | Silver Creek, NY 14136 | Gas Operator | Dec 2023 |
| 27820 | St. Croix Corporation | | Oil & Gas Operator | Apr 1990 |
| 27821 | St. James Oil Corporation | | Oil & Gas Operator | Dec 2009 |
| 27822 | St. Johns Operating #1 L.P. | Houston, TX 77060 | Oil & Gas Operator | Aug 2023 |
| 27823 | St. Mary Energy Company | Houston, TX 77079 | Oil & Gas Operator | Aug 2008 |
| 27824 | St. Mary Land & Exploration Co | Denver, CO 80201 | Oil & Gas Operator | Jun 2010 |
| 27825 | St. Mary Operating Company | Denver, CO 80203 | Oil & Gas Operator | Mar 2019 |
| 27826 | St. Paul Oil And Gas Corp. | | Oil & Gas Operator | Aug 1991 |
| 27827 | Sta-Kel Incorporated | Graham, TX 76450 | Oil & Gas Operator | Dec 2000 |
| 27828 | Staab Alan R | Tulsa, OK 74114-4213 | Oil & Gas Operator | Sep 2010 |
| 27829 | Staab Energy & Leasing | | Oil Operator | May 2024 |
| 27830 | Staab Oil Co., A General Partnership | Hays, KS 67601 | Oil Operator | Jan 2025 |
| 27831 | Staats & Martin | | Oil Operator | Aug 2013 |
| 27832 | Staats, William N | | Oil & Gas Operator | Feb 2025 |
| 27833 | Stablerock Energy L.L.C. | Oklahoma City, OK 73106 | Oil & Gas Operator | May 2025 |
| 27834 | Stach Enterprises LLC | Nashport, OH 43830 | Oil & Gas Operator | Dec 2021 |
| 27835 | Stacha, Eddy A. | Rice, TX 75155 | Oil & Gas Operator | May 2025 |
| 27836 | Stachler William L | Danville, OH 43014 | Oil & Gas Operator | Dec 1989 |
| 27837 | Stack Production | Dewey, OK 74029 | Oil & Gas Operator | Mar 2002 |
| 27838 | Stackhouse Construction Inc | Orwell, OH 44076 | Oil & Gas Operator | Dec 2024 |
| 27839 | Stacy Operating LLC | Cushing, OK 74023 | Oil & Gas Operator | Feb 2025 |
| 27840 | Stacy Reamy | Purdon, TX 76679 | Oil Operator | May 2025 |
| 27841 | Stafford, A C | | Oil Operator | Dec 2003 |
| 27842 | Stag Oil Producers Inc | Midland, TX 79701 | Oil & Gas Operator | Jan 1998 |
| 27843 | Stagecoach Pipeline & Storage Company LLC | | Gas Operator | Dec 2005 |
| 27844 | Stagg Investment Group, Inc. | Midland, TX 79701 | Oil Operator | May 2013 |
| 27845 | Staggered T Oil LLC | Quanah, TX 79252 | Oil Operator | May 2025 |
| 27846 | Staghorn Energy, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2025 |
| 27847 | Staghorn Petroleum II LLC | Tulsa, OK 74103-3500 | Oil & Gas Operator | Mar 2025 |
| 27848 | Staghorn Petroleum LLC | Tulsa, OK 74103-3500 | Oil & Gas Operator | Feb 2025 |
| 27849 | Staghorn Resources, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |
| 27850 | Stahl Petroleum Co. | Amarillo, TX 79118 | Oil & Gas Operator | Aug 2003 |
| 27851 | Stal Oil Production, L.L.C. | Argyle, TX 76226 | Oil Operator | May 2025 |
| 27852 | Stalcup Oil Comp | | Oil Operator | Dec 1992 |
| 27853 | Stalcup Oil Company | | Oil Operator | Oct 2009 |
| 27854 | Staley Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2000 |
| 27855 | Staley Operating Co. | Midland, TX 79702 | Oil & Gas Operator | Jan 2022 |
| 27856 | Staley, Jack C. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2000 |
| 27857 | Stalica, Donald E. | Pavilion, NY 14525 | Gas Operator | Dec 2023 |
| 27858 | Stalking Horse Energy, Limited Liability Company | La Porte, TX 77571 | Oil & Gas Operator | May 2025 |
| 27859 | Stalking Horse Energy, LLC | Denver, CO 80246 | Oil Operator | Mar 2025 |
| 27860 | Stallings Eugene | | Oil Operator | Jul 1994 |
| 27861 | Stallion Energy LLC | Houston, TX 77090 | Oil & Gas Operator | Oct 2009 |
| 27862 | Stallion Energy, Inc. | Houston, TX 77060 | Oil & Gas Operator | Oct 2017 |
| 27863 | Stallion Inc. | Hurricane, WV 25526 | Oil & Gas Operator | Dec 2021 |
| 27864 | Stallion Oil Company | Lafayette, LA 70505 | Oil & Gas Operator | Jun 2004 |
| 27865 | Stallion Oil Corporation | | Oil & Gas Operator | Nov 1987 |
| 27866 | Stallion Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | May 2025 |
| 27867 | Stalnaker Energy Corporation | | Oil & Gas Operator | Dec 2021 |
| 27868 | Stalnaker Oil Company | Maud, OK 74854-0295 | Oil Operator | May 2017 |
| 27869 | Stalnaker, William K | | Oil & Gas Operator | Dec 2008 |
| 27870 | Stalwart Energy Co | Tulsa, OK 74103-3518 | Oil & Gas Operator | Apr 2014 |
| 27871 | Stamic Oil LLC | Duncan, OK 73534-1898 | Oil & Gas Operator | Oct 2021 |
| 27872 | Stampede Energy Corp. | Canada, 00100 | Oil & Gas Operator | Mar 2000 |
| 27873 | Stamper Operating Co., Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | May 2025 |
| 27874 | Stanco Petroleum Inc | Kimball, NE 69145 | Oil & Gas Operator | Jul 1999 |
| 27875 | Standard Alaska Production Company | | Oil & Gas Operator | Dec 1987 |
| 27876 | Standard Oil Co Of Calif | | Oil & Gas Operator | Dec 1983 |
| 27877 | Standard Oil Co Of WV | Walton, WV 25286 | Oil & Gas Operator | Dec 2023 |
| 27878 | Standard Oil Company, Inc. | Parkesburg, WV 26103 | Oil & Gas Operator | Mar 2022 |
| 27879 | Standard Oil Of Kentucky, Inc | | Oil Operator | Dec 2022 |
| 27880 | Standard Oil Tools, Inc. | College Sta, TX 77845 | Oil & Gas Operator | May 2025 |
| 27881 | Standard Operating Company | Wichita, KS 67205 | Oil & Gas Operator | Jan 2025 |
| 27882 | Standard Operating Company, LLC | | Oil & Gas Operator | May 2022 |
| 27883 | Standard Operating Inc | | Oil Operator | Jun 1986 |
| 27884 | Standard Production | | Oil Operator | Oct 1997 |
| 27885 | Standard Resources Corp. | Houston, TX 77063 | Oil & Gas Operator | May 2025 |
| 27886 | Standard Silver Corp | Richardson, TX 750801946 | Gas Operator | Aug 2024 |
| 27887 | Standby Farms | Louisville, OH 44641 | Oil & Gas Operator | Dec 2024 |
| 27888 | Standing Bear Petroleum Inc. | | Oil & Gas Operator | Dec 2005 |
| 27889 | Standley* Robert K Dba Otis Energy | | Oil Operator | Jan 2023 |
| 27890 | Stanlee Oil LLC | | Oil Operator | Dec 2024 |
| 27891 | Stanoco Oil Co | Central City, KY 42330 | Oil & Gas Operator | Dec 2021 |
| 27892 | Stanolind Operating Corp. | Midland, TX 79701 | Oil & Gas Operator | Apr 2008 |
| 27893 | Stanolind Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2021 |
| 27894 | Stanolind Operating LLC Dba Stanolind NM LLC | Midland, TX 79701 | Oil & Gas Operator | Dec 2014 |
| 27895 | Stanolind Permian LLC | Midland, TX 79705 | Oil & Gas Operator | May 2025 |
| 27896 | Stanolind Production LLC | Midland, TX 79702 | Oil & Gas Operator | Dec 2020 |
| 27897 | Stanolind SJ LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2018 |
| 27898 | Stanotex, LLC | Katy, TX 77494 | Oil & Gas Operator | May 2025 |
| 27899 | Stanton Leo F & Leo H | Wynona, OK 74084 | Oil & Gas Operator | Jun 1999 |
| 27900 | Stanton Mineral Development Inc | Austin, TX 78759 | Oil & Gas Operator | May 2025 |