| 27101 | Schwartz, Randy L. | West Valley, NY 14171 | Gas Operator | Dec 2024 |
| 27102 | Schweder Richard E | Lakeville, OH 44638 | Oil & Gas Operator | Dec 2009 |
| 27103 | Schweikert, Donna C. | Springville, NY 14141 | Gas Operator | Dec 2024 |
| 27104 | Schwertfeger, Donald E. Oil | Preston, KS 67569 | Oil Operator | Jan 1999 |
| 27105 | Schwien Tank & Lease Service Inc | Bazine, KS 67516 | Oil Operator | May 2000 |
| 27106 | Scimitar Resc Li | | Oil Operator | Oct 1982 |
| 27107 | Scion Energy Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2019 |
| 27108 | Scissortail Energy LLC | Tulsa, OK 74137-3644 | Oil & Gas Operator | Dec 2025 |
| 27109 | Scissortail Exploration And Production LLC | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2025 |
| 27110 | Sco Permian, LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Jan 2026 |
| 27111 | Scoggins Oil & Gas Co. | Seabrook, TX 77586 | Oil & Gas Operator | Jun 2000 |
| 27112 | Scoggins Production Company | Cleo Springs, OK 73729-9732 | Oil & Gas Operator | May 2022 |
| 27113 | Scoggins Production LLC | Enid, OK 73703-3002 | Oil & Gas Operator | Dec 2025 |
| 27114 | Scogin Exploration Inc | | Oil & Gas Operator | Dec 1999 |
| 27115 | Scope Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2003 |
| 27116 | Score Energy Company | Corpus Chrsti, TX 78468 | Oil & Gas Operator | Feb 2026 |
| 27117 | Scorpio Energy Inc | Sheffield, PA 16347-0929 | Oil & Gas Operator | Dec 2025 |
| 27118 | Scorpion Oil & Gas, LLC | Houston, TX 77036 | Oil & Gas Operator | May 2025 |
| 27119 | Scorpion Operating, Inc. | Benavides, TX 78341 | Oil Operator | Feb 2026 |
| 27120 | Scott | Cisco, TX 76437 | Oil & Gas Operator | Jul 2003 |
| 27121 | Scott Banes Scott Family Partnership | | Oil Operator | Nov 2025 |
| 27122 | Scott Branson | Carlsbad, NM 88221 | Oil & Gas Operator | Oct 2017 |
| 27123 | Scott John S | Copan, OK 74022-5904 | Oil Operator | Apr 2005 |
| 27124 | Scott Oil Company | Corsicana, TX 75110 | Oil & Gas Operator | Apr 2011 |
| 27125 | Scott Operating, Inc. | Albany, TX 76430 | Oil & Gas Operator | Feb 2026 |
| 27126 | Scott Petroleum, Inc. | Dallas, TX 75244 | Oil & Gas Operator | May 1995 |
| 27127 | Scott Services LLC | Plainville, KS 67663 | Oil Operator | Sep 2025 |
| 27128 | Scott SR Kermit | Okarche, OK 73762 | Oil & Gas Operator | Mar 2015 |
| 27129 | Scott W. Brumley | | Oil Operator | Apr 2011 |
| 27130 | Scott Wayne Oil Co | Haxton, CO 80731 | Oil & Gas Operator | Apr 2020 |
| 27131 | Scott'S Peek 'N Peak, LLC | Erie, PA 16509 | Gas Operator | Dec 2024 |
| 27132 | Scott'S Production, LLC | Roxbury, KS 67476 | Oil Operator | Sep 2025 |
| 27133 | Scott'S Well Service Inc | Roxbury, KS 67476 | Oil Operator | Nov 2012 |
| 27134 | Scott, Frank | | Gas Operator | Dec 2013 |
| 27135 | Scott, Stephen | Olney, TX 76374 | Oil Operator | Oct 2011 |
| 27136 | Scott, Steve Engineering | Midland, TX 79710 | Oil & Gas Operator | Apr 2005 |
| 27137 | Scout Energy Corporation | Edmond, OK 73083-1348 | Oil & Gas Operator | Nov 2025 |
| 27138 | Scout Energy LTD Liability Co | Inez, TX 77968 | Oil & Gas Operator | Feb 2026 |
| 27139 | Scout Energy Management LLC | Dallas, TX 75240 | Oil & Gas Operator | Feb 2026 |
| 27140 | Scranton Exploration | Eastland, TX 76448 | Oil & Gas Operator | Feb 2026 |
| 27141 | Scribner, Jeff | Wichita Falls, TX 76302 | Oil & Gas Operator | Dec 2004 |
| 27142 | Scrimgeour Robert | Sterling, VA 22170 | Oil & Gas Operator | Dec 1991 |
| 27143 | Scriven, Daniel | Ripley, NY 14775 | Gas Operator | Dec 2024 |
| 27144 | Scroggins, Bruce E. | Gilmer, TX 75645 | Oil & Gas Operator | Aug 2004 |
| 27145 | SCS Newton Oil LLC | Perryton, TX 79070 | Oil & Gas Operator | Feb 2026 |
| 27146 | Scully And Smith Oil Corporation | Salado, TX 76571 | Oil & Gas Operator | Feb 1995 |
| 27147 | Scully Energy Corporation | Salado, TX 76571 | Oil & Gas Operator | Mar 2012 |
| 27148 | Scully Exploration LLC | Salado, TX 76571 | Gas Operator | May 2020 |
| 27149 | Scurlock Oil Co | | Oil Operator | May 1982 |
| 27150 | Scythian, LTD. | Midland, TX 79701 | Oil & Gas Operator | Dec 2020 |
| 27151 | SCZ Resources, LLC | Houston, TX 77055 | Oil Operator | Sep 2025 |
| 27152 | SD Royale Energy, Inc. | San Diego, CA 92159 | Oil & Gas Operator | Feb 2026 |
| 27153 | SDB Oil & Gas, LLC | Pasadena, TX 77502 | Oil Operator | Feb 2026 |
| 27154 | SDG Operating Company, Inc | Tyler, TX 75701 | Oil & Gas Operator | Feb 2026 |
| 27155 | SDG Resources L.P. | Montrose, CO 81402 | Oil & Gas Operator | May 2006 |
| 27156 | SDG Services LLC | Kilgore, TX 75663 | Oil Operator | Sep 2025 |
| 27157 | SDMB Resources LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 27158 | Sdoco, LLC | Highlands Ranch, CO 80129 | Oil Operator | Oct 2025 |
| 27159 | SDX Resources, Inc. | Midland, TX 79704 | Oil & Gas Operator | Feb 2026 |
| 27160 | Se USA Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2009 |
| 27161 | Sea Eagle Ford, LLC | Denver, CO 80265 | Oil & Gas Operator | Jun 2022 |
| 27162 | Sea Sand Oil Company | Fort Worth, TX 76185 | Oil & Gas Operator | Jun 1995 |
| 27163 | Seaboard Gas Company | Edmond, OK 73034 | Oil & Gas Operator | Feb 1999 |
| 27164 | Seaboard Oil Company | Midland, TX 79710 | Oil & Gas Operator | Mar 2008 |
| 27165 | Seaboard Operating Co. | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 27166 | Seaboard Pipe & Equip. Co. | | Oil & Gas Operator | May 1977 |
| 27167 | Seaboard Well Service, Inc. | | Oil & Gas Operator | Jan 1978 |
| 27168 | Seabreeze Production Co | Hungerford, TX 77448 | Oil & Gas Operator | Feb 2026 |
| 27169 | Seaco Production | Dripping SPGS, TX 78620 | Oil & Gas Operator | Feb 2016 |
| 27170 | Seago Operating Co., L.L.C. | Abilene, TX 79608 | Oil & Gas Operator | Oct 2011 |
| 27171 | Seago Petroleum, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Feb 2026 |
| 27172 | Seagrove Resources LLC | Malakoff, TX 75148 | Oil & Gas Operator | Nov 2025 |
| 27173 | Seagull Development Corp | Massillon, OH 44646-7436 | Oil & Gas Operator | Dec 2015 |
| 27174 | Seagull Energy Corporation | | Gas Operator | Mar 1987 |
| 27175 | Seagull Energy E & P Inc | Houston, TX 77002 | Oil & Gas Operator | Jan 2015 |
| 27176 | Seagull Mid-South Inc | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 27177 | Seagull Midcon Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 27178 | Seagull Operatin | | Oil & Gas Operator | Jul 1995 |
| 27179 | Seagull Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jan 2025 |
| 27180 | Seahawk Oil & Gas Company | Dallas, TX 75379 | Oil & Gas Operator | Aug 2007 |
| 27181 | Seahawk Oil International Inc | Newport Beach, CA 92660 | Oil & Gas Operator | Oct 1997 |
| 27182 | Seal Energy Company | | Oil Operator | Dec 2024 |
| 27183 | Seal Exploration, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Dec 2006 |
| 27184 | Seale, Don R. | Electra, TX 76360 | Oil & Gas Operator | Feb 2026 |
| 27185 | Sealexco | | Oil & Gas Operator | Jun 1992 |
| 27186 | Sealexco-Crescent Drilling | | Oil & Gas Operator | May 1986 |
| 27187 | Seals And Brown Oil Operating | Norman, OK 73072-3020 | Oil & Gas Operator | Sep 2024 |
| 27188 | Seals Oil Company | Fox, OK 73435-0222 | Oil & Gas Operator | Nov 2011 |
| 27189 | Sean M Sharp LLC | Chalk Hill, PA 15421 | Oil & Gas Operator | Mar 2025 |
| 27190 | Seanard Energy Company | Baton Rouge, LA 70808 | Oil & Gas Operator | Jul 2002 |
| 27191 | Seaport Inc | Oklahoma City, OK 73131 | Oil & Gas Operator | Nov 2025 |
| 27192 | Seaport Natural Gas Co., Inc. | Angola, NY 14006 | Gas Operator | Dec 2024 |
| 27193 | Search Drilling Company | Houston, TX 77010 | Oil & Gas Operator | Feb 2001 |
| 27194 | Searchers Exploration | Brenham, TX 77833 | Oil Operator | Feb 2026 |
| 27195 | Searcy Brothers Inc | Tulsa, OK 74135-0433 | Oil Operator | Jun 2004 |
| 27196 | Sears Joe M | Bethany, OK 730084841 | Oil & Gas Operator | May 2013 |
| 27197 | Sears M N | Oklahoma City, OK 73143 | Oil & Gas Operator | Apr 2015 |
| 27198 | Sears Resources, LLC | | Oil & Gas Operator | Dec 2021 |
| 27199 | Seashore Energy, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Feb 2026 |
| 27200 | Seattle'S Best Consulting LLC | Austin, TX 78731 | Oil & Gas Operator | Feb 2026 |