| 9901 | SBS Oil Company | Austin, TX 78749 | Oil & Gas Operator | Apr 2025 |
| 9902 | Scala Energy Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2023 |
| 9903 | Scan Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2004 |
| 9904 | Scana Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Dec 1999 |
| 9905 | Scana Petroleum Resources Inc | Houston, TX 77002 | Oil & Gas Operator | Jun 2013 |
| 9906 | Scana Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2005 |
| 9907 | Schaefer, Gary L. | Holliday, TX 76366 | Oil & Gas Operator | Mar 2017 |
| 9908 | Schaffner, Cecil | Byers, TX 76357 | Oil & Gas Operator | Apr 2004 |
| 9909 | Schalk Oil Company, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2025 |
| 9910 | Schalk, Thomas S. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 1995 |
| 9911 | Schenk Oil Co. | Scotland, TX 76379 | Oil Operator | Apr 2025 |
| 9912 | Scheriger Production | Graham, TX 76450 | Oil & Gas Operator | Jun 2006 |
| 9913 | Schetawee, Inc. | Hamlin, TX 79520 | Oil & Gas Operator | Mar 2008 |
| 9914 | Schievelbein, Bryan O. | Seguin, TX 78155 | Oil & Gas Operator | Apr 2025 |
| 9915 | Schiff, H. G. & Co. | Dallas, TX 75206 | Oil & Gas Operator | Jul 1993 |
| 9916 | Schkade & Bullock | San Angelo, TX 76901 | Oil & Gas Operator | Aug 2003 |
| 9917 | Schkade Bros. Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Oct 2021 |
| 9918 | Schkade Exploration | San Angelo, TX 76901 | Oil & Gas Operator | Apr 2025 |
| 9919 | Schkade Production Co. | Abilene, TX 79604 | Oil & Gas Operator | Jul 2020 |
| 9920 | Schkade, Carl E. | Albany, TX 76430 | Oil & Gas Operator | Sep 2009 |
| 9921 | Schkade, Harold | Albany, TX 76430 | Oil & Gas Operator | Aug 2024 |
| 9922 | Schkade, Louis | Albany, TX 76430 | Oil & Gas Operator | Mar 2008 |
| 9923 | Schlachter Operating Corporation | Dallas, TX 75225 | Oil & Gas Operator | Apr 2025 |
| 9924 | Schlachter, David A. | Dallas, TX 75225 | Oil & Gas Operator | Apr 2015 |
| 9925 | Schlachter, David A., Estate Of | Dallas, TX 75225 | Oil & Gas Operator | Jan 2000 |
| 9926 | Schlagal, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2016 |
| 9927 | Schlittler, Willard | Bryson, TX 76427 | Oil & Gas Operator | Apr 2025 |
| 9928 | Schmid Properties Inc | Hico, TX 76457 | Oil & Gas Operator | Apr 2025 |
| 9929 | Schneider, Ernest | Rockdale, TX 76567 | Oil & Gas Operator | Dec 2014 |
| 9930 | Schreiber, Lloyd | Scotland, TX 76379 | Oil & Gas Operator | Dec 2000 |
| 9931 | Schroeder Oil Properties | Graham, TX 76450 | Oil & Gas Operator | Jul 2022 |
| 9932 | Schwab City Resources | Leggett, TX 77350 | Oil & Gas Operator | Aug 2013 |
| 9933 | Scoggins Oil & Gas Co. | Seabrook, TX 77586 | Oil & Gas Operator | Jun 2000 |
| 9934 | Scope Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2009 |
| 9935 | Scorpion Oil & Gas, LLC | Houston, TX 77036 | Oil & Gas Operator | Aug 2024 |
| 9936 | Scorpion Operating, Inc. | Benavides, TX 78341 | Oil Operator | Apr 2025 |
| 9937 | Scott | Cisco, TX 76437 | Oil & Gas Operator | Jul 2003 |
| 9938 | Scott Oil Company | Corsicana, TX 75110 | Oil & Gas Operator | Apr 2011 |
| 9939 | Scott Operating, Inc. | Albany, TX 76430 | Oil & Gas Operator | Apr 2025 |
| 9940 | Scott Petroleum, Inc. | Dallas, TX 75244 | Oil & Gas Operator | May 1995 |
| 9941 | Scott, Stephen | Olney, TX 76374 | Oil Operator | Oct 2011 |
| 9942 | Scott, Steve Engineering | Midland, TX 79710 | Oil & Gas Operator | Apr 2005 |
| 9943 | Scout Energy LTD Liability Co | Inez, TX 77968 | Oil & Gas Operator | Apr 2025 |
| 9944 | Scout Energy Management LLC | Dallas, TX 75240 | Oil & Gas Operator | Apr 2025 |
| 9945 | Scranton Exploration | Eastland, TX 76448 | Oil & Gas Operator | Apr 2025 |
| 9946 | Scribner, Jeff | Wichita Falls, TX 76302 | Oil & Gas Operator | Dec 2004 |
| 9947 | Scroggins, Bruce E. | Gilmer, TX 75645 | Oil & Gas Operator | Aug 2004 |
| 9948 | SCS Newton Oil LLC | Perryton, TX 79070 | Oil & Gas Operator | Apr 2025 |
| 9949 | Scully And Smith Oil Corporation | Salado, TX 76571 | Oil & Gas Operator | Feb 1995 |
| 9950 | Scully Energy Corporation | Salado, TX 76571 | Oil & Gas Operator | Mar 2012 |
| 9951 | Scythian, LTD. | Midland, TX 79701 | Oil & Gas Operator | Dec 2020 |
| 9952 | SD Royale Energy, Inc. | San Diego, CA 92159 | Oil & Gas Operator | Apr 2025 |
| 9953 | SDB Oil & Gas, LLC | Pasadena, TX 77502 | Oil Operator | Apr 2025 |
| 9954 | SDG Operating Company, Inc | Tyler, TX 75701 | Oil & Gas Operator | Apr 2025 |
| 9955 | SDG Resources L.P. | Montrose, CO 81402 | Oil & Gas Operator | May 2006 |
| 9956 | SDG Services LLC | Kilgore, TX 75663 | Oil Operator | Apr 2025 |
| 9957 | SDMB Resources LLC | Graham, TX 76450 | Gas Operator | Apr 2025 |
| 9958 | SDX Resources, Inc. | Midland, TX 79705 | Oil & Gas Operator | Apr 2025 |
| 9959 | Se USA Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2009 |
| 9960 | Sea Eagle Ford, LLC | Denver, CO 80265 | Oil & Gas Operator | Jun 2022 |
| 9961 | Sea Sand Oil Company | Fort Worth, TX 76185 | Oil & Gas Operator | Jun 1995 |
| 9962 | Seaboard Oil Company | Midland, TX 79710 | Oil & Gas Operator | Mar 2008 |
| 9963 | Seaboard Operating Co. | Midland, TX 79710 | Oil & Gas Operator | Apr 2025 |
| 9964 | Seabreeze Production Co | Hungerford, TX 77448 | Oil & Gas Operator | Apr 2025 |
| 9965 | Seaco Production | Dripping SPGS, TX 78620 | Oil & Gas Operator | Feb 2016 |
| 9966 | Seago Operating Co., L.L.C. | Abilene, TX 79608 | Oil & Gas Operator | Oct 2011 |
| 9967 | Seago Petroleum, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Apr 2025 |
| 9968 | Seagull Energy E & P Inc | Houston, TX 77002 | Oil & Gas Operator | Jan 2015 |
| 9969 | Seagull Mid-South Inc | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 9970 | Seagull Midcon Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 9971 | Seagull Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jan 2025 |
| 9972 | Seahawk Oil & Gas Company | Dallas, TX 75379 | Oil & Gas Operator | Aug 2007 |
| 9973 | Seal Exploration, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Dec 2006 |
| 9974 | Seale, Don R. | Electra, TX 76360 | Oil & Gas Operator | Apr 2025 |
| 9975 | Seanard Energy Company | Baton Rouge, LA 70808 | Oil & Gas Operator | Jul 2002 |
| 9976 | Searchers Exploration | Brenham, TX 77833 | Oil Operator | Apr 2025 |
| 9977 | Seashore Energy, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Apr 2025 |
| 9978 | Seattle'S Best Consulting LLC | Austin, TX 78731 | Oil & Gas Operator | Apr 2025 |
| 9979 | Seay Exploration, Inc. | Midland, TX 79704 | Oil & Gas Operator | Mar 2008 |
| 9980 | Seay Oil & Gas, LTD. | Dripping SPGS, TX 78620 | Oil & Gas Operator | Apr 2013 |
| 9981 | Seco Petroleum Corp | Houston, TX 77290 | Oil & Gas Operator | Jan 1997 |
| 9982 | Seco Production Company | Midland, TX 79708 | Oil & Gas Operator | Aug 2003 |
| 9983 | Secondary Gas Recovery Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 1993 |
| 9984 | Secondary Oil Corp., Inc. | Austin, TX 78750 | Oil Operator | Apr 1999 |
| 9985 | Sed Energy Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 9986 | Sedco Resources Inc | Kerrville, TX 78029 | Oil & Gas Operator | Apr 2025 |
| 9987 | Sedona Oil & Gas Corporation | Austin, TX 78746 | Oil & Gas Operator | Apr 2025 |
| 9988 | Seek Energy, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2025 |
| 9989 | Seeker Oil Company II, Inc. | San Antonio, TX 78209 | Oil Operator | Jan 2016 |
| 9990 | Seeker Oil Company, Incorporated | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2025 |
| 9991 | Seel-Mac Oil & Gas LLC | Richardson, TX 75080 | Oil Operator | Jul 2011 |
| 9992 | Seely Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 9993 | Seelye, William L. | Plano, TX 75024 | Oil & Gas Operator | Oct 2005 |
| 9994 | Segco Oil & Gas Inc | Odessa, TX 79765 | Gas Operator | Oct 2005 |
| 9995 | Segler, Charles | Holliday, TX 76366 | Oil & Gas Operator | Mar 2008 |
| 9996 | Segrest-Ward Joint Venture | Longview, TX 75606 | Oil & Gas Operator | Jun 2001 |
| 9997 | Seguin Pump | Seguin, TX 78155 | Oil & Gas Operator | Sep 2017 |
| 9998 | Seguro Oil And Gas, LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2024 |
| 9999 | Seguro Well Service, Inc. | Gonzales, TX 78629 | Oil & Gas Operator | Apr 2025 |
| 10000 | Sei Operating, LLC | Mandeville, LA 70471 | Oil & Gas Operator | Apr 2025 |