| 3801 | Russco Energy In | | Oil Operator | Jun 1994 |
| 3802 | Russco Energy, Inc. | Gladstone, MO 64118 | Oil Operator | Apr 2002 |
| 3803 | Russell Gas Co., LLC | Hugoton, KS 67451 | Gas Operator | Dec 2024 |
| 3804 | Russell James E | | Oil Operator | Apr 1994 |
| 3805 | Russell Oil, Inc. | Edmond, OK 73083 | Oil Operator | Dec 2024 |
| 3806 | Russell, Gerald W. | Tulsa, OK 74103 | Oil Operator | Feb 1986 |
| 3807 | Ryan, Daniel J. | Oklahoma City, OK 73139 | Oil Operator | Sep 2003 |
| 3808 | Ryholland Fielder, Inc | Delray Beach, FL 33446 | Oil & Gas Operator | Apr 2025 |
| 3809 | S & B Oil Company | Wyonna, OK 74084 | Oil & Gas Operator | Nov 2005 |
| 3810 | S & B Oil Oper - | | Oil Operator | Dec 1996 |
| 3811 | S & B Operating, LLC | Iowa Park, TX 76367 | Oil Operator | Apr 2025 |
| 3812 | S & C Construction, Inc. | Whitefish, MT 59937 | Oil & Gas Operator | Apr 2025 |
| 3813 | S & H Oilfield Enterprises | | Oil & Gas Operator | Sep 2023 |
| 3814 | S & J Oil | Hays, KS 67601 | Oil & Gas Operator | Jan 2025 |
| 3815 | S & J Oil Company | Ellinwood, KS 67526 | Oil Operator | Jun 2000 |
| 3816 | S & J Operating | | Oil Operator | May 1989 |
| 3817 | S & K Oil Compan | | Oil Operator | Sep 1989 |
| 3818 | S & K Oil Production, Inc. | Blue Mound, KS 66010 | Oil Operator | Dec 2024 |
| 3819 | S & M Oil | Hays, KS 67601 | Oil Operator | Aug 2003 |
| 3820 | S & M Oil - Craw | | Oil Operator | Dec 1995 |
| 3821 | S & S Oil | Ponca City, OK 74601 | Oil & Gas Operator | Dec 2009 |
| 3822 | S & S Oil & Gas LLC | Skiatook, OK 74070 | Oil & Gas Operator | Jul 2016 |
| 3823 | S & S Oil Company | Electra, TX 76360 | Oil & Gas Operator | Apr 2025 |
| 3824 | S & S Oil Leasing | Chase, KS 67524 | Oil Operator | Dec 2024 |
| 3825 | S & S Oil, L.L.C. | Chase, KS 67524 | Oil Operator | Dec 2024 |
| 3826 | S & T Oil Compan | | Oil Operator | Feb 1984 |
| 3827 | S & V Oil Incorp | | Oil & Gas Operator | Apr 1990 |
| 3828 | S & W Drilling C | | Oil Operator | May 1985 |
| 3829 | S & W Oil & Gas, LLC | Pampa, TX 79066 | Oil & Gas Operator | Apr 2025 |
| 3830 | S & W Oil Compan | | Oil Operator | Dec 1986 |
| 3831 | S C B Oil Co. | Fredonia, KS 66736 | Gas Operator | Dec 2009 |
| 3832 | S C Z Oil Compan | | Oil & Gas Operator | Feb 1995 |
| 3833 | S-2 Oil Company | | Oil Operator | Mar 1994 |
| 3834 | S. R. Weilert Oil LLC | Wichita, KS 67208 | Oil Operator | Nov 2005 |
| 3835 | S.B. Oil Company, A General Partnership | Hays, KS 67601 | Oil Operator | Sep 2019 |
| 3836 | S.J. Titan Co., A General Partnership | Hutchinson, KS 67502 | Oil & Gas Operator | May 2015 |
| 3837 | Saaw Operating LLC | Protection, KS 67127 | Oil & Gas Operator | Dec 2024 |
| 3838 | Sabine Corporation | Oklahoma City, OK 73116 | Oil & Gas Operator | Jul 1996 |
| 3839 | Sabine Productio | | Oil & Gas Operator | Mar 1994 |
| 3840 | Sabre Exploratio | | Oil Operator | Oct 1988 |
| 3841 | Sabre Exploration, LLC | Wichita, KS 67205 | Oil Operator | Dec 2024 |
| 3842 | Sabre Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2025 |
| 3843 | Saco Oil Company | El Dorado, KS 67042 | Oil Operator | Jan 2001 |
| 3844 | Sag Oil Company LLC | Wellsville, KS 66092 | Oil Operator | Dec 2024 |
| 3845 | Sage Drilling Co | Wichita, KS 67202 | Oil & Gas Operator | Nov 1998 |
| 3846 | Sage NR Ok LLC | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2025 |
| 3847 | Sage, Larry George | Virgil, KS 66870 | Oil Operator | Dec 2019 |
| 3848 | Sagebrush Operating LLC | Denver, CO 80203 | Oil & Gas Operator | Dec 2024 |
| 3849 | Salt Creek Production, Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Apr 2025 |
| 3850 | Salt Creek Resources, LLC | Caney, KS 67333 | Oil Operator | Oct 2019 |
| 3851 | Salt Fork Produc | | Oil Operator | Oct 1987 |
| 3852 | Sam W Mays Jr LLC | Eureka, KS 67045 | Oil & Gas Operator | Apr 2018 |
| 3853 | Samco Investments | | Oil Operator | Nov 2024 |
| 3854 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
| 3855 | Samson Properties, Incorporated | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2008 |
| 3856 | Samson Resources | | Oil Operator | Jan 1994 |
| 3857 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2025 |
| 3858 | Samuel Gary Jr. & Associates, Inc. | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
| 3859 | Samuel Gary Jr. And Assoc., Inc. | | Oil & Gas Operator | Mar 2023 |
| 3860 | Samuel Jackson Production Co | | Oil Operator | Dec 2024 |
| 3861 | San Marco Petroleum Inc | Denver, CO 80293 | Oil & Gas Operator | Mar 2025 |
| 3862 | San Pet Inc | McPherson, KS 67460 | Oil Operator | May 1997 |
| 3863 | San Saba Energy | Hays, KS 67601 | Oil Operator | May 1998 |
| 3864 | Sananco Energy C | | Oil Operator | Aug 1987 |
| 3865 | Sand Bar Oil Com | | Oil Operator | Jun 1986 |
| 3866 | Sand Dollar Ener | | Oil Operator | Aug 1984 |
| 3867 | Sand Point LLC | Oklahoma City, OK 73132 | Oil & Gas Operator | Dec 2020 |
| 3868 | Sandefer Larry | | Oil Operator | Aug 1993 |
| 3869 | Sanders, Arthur J. | Wichita, KS 67217 | Oil Operator | Nov 1989 |
| 3870 | Sanders, Jack W | Wellsville, KS 66092 | Oil Operator | Feb 1996 |
| 3871 | Sandhill L.L.C. | Wichita, KS 67202 | Gas Operator | Jun 2003 |
| 3872 | Sandhills Oil Co. | Copan, OK 74022 | Oil Operator | Aug 1997 |
| 3873 | Sandlin Oil Corp | Dacono, CO 80514 | Oil & Gas Operator | Mar 2025 |
| 3874 | Sandridge Exploration And Production LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Apr 2025 |
| 3875 | Sanguine Gas Exploration, LLC | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2025 |
| 3876 | Santa Fe Mineral | | Gas Operator | Oct 1994 |
| 3877 | Santa Fe Minerals, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Sep 2013 |
| 3878 | Santa Fe Pipe & | | Oil & Gas Operator | Dec 1991 |
| 3879 | Satchell Creek Petroleum, LLC | Wichita, KS 67205 | Oil Operator | Jul 2024 |
| 3880 | Sauder Earl W | | Oil & Gas Operator | Jan 1992 |
| 3881 | Sauder George E | | Oil Operator | Nov 1996 |
| 3882 | Sauder Oil Co., LLC | Madison, KS 66860 | Oil Operator | Dec 2024 |
| 3883 | Sauder, Earl W. (Deceased) | Emporia, KS 66801 | Oil & Gas Operator | Nov 1997 |
| 3884 | Sauvage W W Inco | | Oil Operator | Nov 1989 |
| 3885 | Savage James F | | Oil Operator | Dec 1996 |
| 3886 | Sawdust Oil Comp | | Oil & Gas Operator | May 1987 |
| 3887 | Saxon Oil Company | Dallas, TX 75204 | Oil & Gas Operator | Oct 2009 |
| 3888 | Scavenger Oil Co., Inc. | Englewood, CO 80111 | Oil & Gas Operator | Mar 2000 |
| 3889 | Schaben Oil LLC | Hays, KS 67601 | Oil Operator | Dec 2024 |
| 3890 | Schankie & Sons, LLC | Madison, KS 66860 | Oil Operator | Dec 2024 |
| 3891 | Schankie Well Se | | Oil Operator | Mar 1995 |
| 3892 | Schankie Well Service, Inc. | Madison, KS 66860 | Oil Operator | Dec 2024 |
| 3893 | Scheck Oil Operation | | Oil & Gas Operator | Dec 2024 |
| 3894 | Scheuneman, Lester | Ridgeway, MO 64481 | Oil Operator | May 2019 |
| 3895 | Schierling Eldon | | Oil & Gas Operator | Aug 1986 |
| 3896 | Schierling, Eldon J. | Wichita, KS 67202 | Oil & Gas Operator | Dec 2024 |
| 3897 | Schindler Oil | | Oil Operator | Dec 2009 |
| 3898 | Schindler Oil, LLC | Madison, KS 66860 | Oil Operator | Dec 2024 |
| 3899 | Schindler, Joe | Madison, KS 66860 | Oil Operator | Nov 2024 |
| 3900 | Schippers Oilfield Services, LLC | Hoxie, KS 67740 | Oil Operator | Dec 2024 |