| 5101 | Salt Creek Energy Company LLC | Shawnee, OK 74802-1505 | Oil & Gas Operator | Jan 2026 |
| 5102 | Salt Creek Production, Inc. | Big Spring, TX 79721 | Oil & Gas Operator | May 2026 |
| 5103 | Salt Fork Producers Inc | Pond Creek, OK 73766 | Oil & Gas Operator | Jan 1995 |
| 5104 | Salty Dog Disposal LLC | Cement, OK 73017 | Oil Operator | Feb 2026 |
| 5105 | Sam W Mays Jr LLC | Eureka, KS 67045 | Oil & Gas Operator | Apr 2018 |
| 5106 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
| 5107 | Samhill LLC | Tonkawa, OK 74653-5533 | Oil & Gas Operator | Feb 2026 |
| 5108 | Samis Oil Company, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Sep 2000 |
| 5109 | Samson Exploration LLC | Tulsa, OK 74101 | Oil & Gas Operator | Feb 2026 |
| 5110 | Samson Gas Producing Company | Tulsa, OK 74103 | Oil & Gas Operator | May 2001 |
| 5111 | Samson Hydrocarbons Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2016 |
| 5112 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2026 |
| 5113 | Samuel Joe L | Tulsa, OK 74135-7805 | Oil & Gas Operator | Jan 2001 |
| 5114 | San Francisco-Okla Pet Ex Inc | | Oil & Gas Operator | Apr 2014 |
| 5115 | San Marco Petroleum Inc | Denver, CO 80293 | Oil & Gas Operator | Feb 2026 |
| 5116 | Sananco Energy Corp | Naples, FL 33941 | Oil & Gas Operator | Jul 2013 |
| 5117 | Sanchez-O'Brien Oil & Gas Corp | Houston, TX 77057 | Oil & Gas Operator | May 1998 |
| 5118 | Sand Boy Production Company | Bartlesville, OK 74003-9273 | Oil & Gas Operator | Jan 2025 |
| 5119 | Sand Creek Resources LLC | Woodward, OK 73801-5222 | Oil & Gas Operator | Feb 2026 |
| 5120 | Sand Point LLC | Oklahoma City, OK 73132 | Oil & Gas Operator | Dec 2020 |
| 5121 | Sand Point Production Inc | Oklahoma City, OK 73172 | Oil & Gas Operator | Jan 2026 |
| 5122 | Sand Resources LLC | Norman, OK 73072-4805 | Oil & Gas Operator | Aug 2012 |
| 5123 | Sand Springs Oil & Gas Co. | Tulsa, OK 74136 | Oil & Gas Operator | May 2026 |
| 5124 | Sandia Operating Corp. | San Antonio, TX 78270 | Oil & Gas Operator | May 2010 |
| 5125 | Sandler Raymond C | Los Angeles, CA 90067 | Oil Operator | Dec 1999 |
| 5126 | Sandlot Oil & Gas LLC | Gruver, TX 79040 | Oil & Gas Operator | May 2026 |
| 5127 | Sandpoint Operating, LLC | San Antonio, TX 78209 | Oil & Gas Operator | Nov 2025 |
| 5128 | Sandra Corporation (The) | Pampa, TX 79066-2474 | Gas Operator | Oct 1996 |
| 5129 | Sandra Turner Dba Grand Lake Resources | Hennessey, OK 73742 | Oil & Gas Operator | Feb 2026 |
| 5130 | Sandridge Energy, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2018 |
| 5131 | Sandridge Exploration And Production LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | May 2026 |
| 5132 | Sandrock Energy LLC | Luther, OK 73054 | Oil & Gas Operator | Jan 2026 |
| 5133 | Sandstone Resources, Inc. | Houston, TX 77043 | Oil & Gas Operator | May 2026 |
| 5134 | Sandy Petroleum Inc | Shawnee, OK 74801-5634 | Oil & Gas Operator | Dec 2025 |
| 5135 | Sanford & Jenkins | Henryetta, OK 74437-1411 | Oil & Gas Operator | Mar 2015 |
| 5136 | Sanford Casondra | Ada, OK 74820-4460 | Oil & Gas Operator | May 2013 |
| 5137 | Sanguine Gas Exploration, LLC | Tulsa, OK 74119 | Oil & Gas Operator | May 2026 |
| 5138 | Sanner Jeffrey B Dba Bryant Lyn Production | Velma, OK 73491 | Oil Operator | Dec 2025 |
| 5139 | Sanner Oil Co LLC | Duncan, OK 73533 | Oil Operator | Jan 2026 |
| 5140 | Sanner Oil Company | Velma, OK 73491-0550 | Oil & Gas Operator | Jan 2014 |
| 5141 | Sanook Inc | Oklahoma City, OK 73156-0548 | Oil & Gas Operator | Jan 2007 |
| 5142 | Sanquip LLC | Oklahoma City, OK 73106 | Oil & Gas Operator | Feb 2026 |
| 5143 | Santa Fe Braun Inc | Dallas, TX 75240-6620 | Oil & Gas Operator | Mar 1995 |
| 5144 | Santa Fe Energy Company | Midland, TX 79701 | Oil & Gas Operator | Dec 2015 |
| 5145 | Santa Fe Energy Operating Partner LP | Midland, TX 79701 | Oil & Gas Operator | Sep 2004 |
| 5146 | Santa Fe Minerals, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Sep 2013 |
| 5147 | Santa Fe Operating LLC | Frisco, TX 75034 | Oil & Gas Operator | May 2026 |
| 5148 | Santa Fe-Andover Oil Co | Tulsa, OK 74172 | Oil & Gas Operator | Sep 2000 |
| 5149 | Santa Rita Resources Inc & Subs | | Oil & Gas Operator | Mar 2015 |
| 5150 | Santo Resources Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | Nov 1998 |
| 5151 | Saqus Oil Co | Oklahoma City, OK 73107 | Oil & Gas Operator | May 2001 |
| 5152 | Sasakwa Operating LLC | Oklahoma City, OK 73179-1902 | Oil & Gas Operator | Jan 2026 |
| 5153 | Sasser Company Inc (The) | Perkins, OK 74059-0515 | Oil & Gas Operator | Jan 2026 |
| 5154 | Savage Exploration, Inc. | San Marcos, TX 78666 | Oil & Gas Operator | May 2026 |
| 5155 | Savoy Energy LP | Traverse City, MI 49685-1560 | Oil & Gas Operator | Feb 2026 |
| 5156 | Saylor Weldon W | Tulsa, OK 74105-5325 | Gas Operator | Dec 1994 |
| 5157 | SBR Oil LLC | Ada, OK 74821 | Oil Operator | Sep 2025 |
| 5158 | Scambler Energy Group LTD Co | Colony, OK 73021 | Oil & Gas Operator | Feb 2026 |
| 5159 | Scana Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Dec 1999 |
| 5160 | Scana Petroleum Resources Inc | Houston, TX 77002 | Oil & Gas Operator | Jun 2013 |
| 5161 | Scana Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2005 |
| 5162 | Scarth Oil & Gas Co | Amarillo, TX 79101 | Oil & Gas Operator | Feb 1999 |
| 5163 | Scavenger Oil Company Inc | Englewood, CO 80111 | Oil & Gas Operator | Mar 2000 |
| 5164 | Schad Jeffrey M | Mannford, OK 74044-0995 | Oil Operator | Sep 2021 |
| 5165 | Schettler William D | Fletcher, OK 73541-4117 | Oil & Gas Operator | Oct 2021 |
| 5166 | Schiff & Jackson Oil Producers | Dallas, TX 75206 | Oil & Gas Operator | Feb 2026 |
| 5167 | Schlachter, David A. | Dallas, TX 75225 | Oil & Gas Operator | Apr 2015 |
| 5168 | Schmid Properties, Inc. | Hico, TX 76457 | Oil & Gas Operator | May 2026 |
| 5169 | Schonfield Harold Gene | Bristow, OK 74010 | Oil Operator | Mar 2015 |
| 5170 | Schonwald Supply Company | Oklahoma City, OK 73101-1571 | Oil & Gas Operator | May 1999 |
| 5171 | Schooley Keith A | Enid, OK 73702-0767 | Oil Operator | May 2006 |
| 5172 | Schrader Lawayne | Fort Worth, TX 76135 | Oil Operator | Mar 2019 |
| 5173 | Schroeder, Donald C | | Oil & Gas Operator | Feb 2026 |
| 5174 | Schuler Jr Chris C | Cleveland, OK 74020 | Oil Operator | Aug 2013 |
| 5175 | Schuler Oil Properties LLC | Cleveland, OK 74020 | Oil Operator | Jan 2026 |
| 5176 | Scissortail Energy LLC | Tulsa, OK 74137-3644 | Oil & Gas Operator | Jan 2026 |
| 5177 | Scissortail Exploration & Production, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2026 |
| 5178 | Scoggins Production Company | Cleo Springs, OK 73729-9732 | Oil & Gas Operator | May 2022 |
| 5179 | Scoggins Production LLC | Enid, OK 73703-3002 | Oil & Gas Operator | Feb 2026 |
| 5180 | Scott Banes Scott Family Partnership | | Oil Operator | Nov 2025 |
| 5181 | Scott John S | Copan, OK 74022-5904 | Oil Operator | Apr 2005 |
| 5182 | Scott Petroleum, Inc. | Dallas, TX 75244 | Oil & Gas Operator | May 1995 |
| 5183 | Scott SR Kermit | Okarche, OK 73762 | Oil & Gas Operator | Mar 2015 |
| 5184 | Scott Wayne Oil Co | Haxton, CO 80731 | Oil & Gas Operator | Apr 2020 |
| 5185 | Scout Energy Corporation | Edmond, OK 73083-1348 | Oil & Gas Operator | Jan 2026 |
| 5186 | Scout Energy Management LLC | Dallas, TX 75240 | Oil & Gas Operator | May 2026 |
| 5187 | SCS Newton Oil LLC | Perryton, TX 79070 | Oil & Gas Operator | May 2026 |
| 5188 | Seaboard Gas Company | Edmond, OK 73034 | Oil & Gas Operator | Feb 1999 |
| 5189 | Seagrove Resources LLC | Malakoff, TX 75148 | Oil & Gas Operator | Jan 2026 |
| 5190 | Seagull Energy E & P Inc | Houston, TX 77002 | Oil & Gas Operator | Jan 2015 |
| 5191 | Seagull Mid-South Inc | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 5192 | Seagull Midcon Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 5193 | Seagull Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jan 2025 |
| 5194 | Seahawk Oil International Inc | Newport Beach, CA 92660 | Oil & Gas Operator | Oct 1997 |
| 5195 | Seal Exploration, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Dec 2006 |
| 5196 | Seals And Brown Oil Operating | Norman, OK 73072-3020 | Oil & Gas Operator | Sep 2024 |
| 5197 | Seals Oil Company | Fox, OK 73435-0222 | Oil & Gas Operator | Nov 2011 |
| 5198 | Sean M Sharp LLC | Chalk Hill, PA 15421 | Oil & Gas Operator | Oct 2025 |
| 5199 | Seaport Inc | Oklahoma City, OK 73131 | Oil & Gas Operator | Jan 2026 |
| 5200 | Search Drilling Company | Houston, TX 77010 | Oil & Gas Operator | Feb 2001 |