| 28101 | Stanoco Oil Co | Central City, KY 42330 | Oil & Gas Operator | Dec 2021 |
| 28102 | Stanolind Operating Corp. | Midland, TX 79701 | Oil & Gas Operator | Apr 2008 |
| 28103 | Stanolind Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2021 |
| 28104 | Stanolind Operating LLC Dba Stanolind NM LLC | Midland, TX 79701 | Oil & Gas Operator | Dec 2014 |
| 28105 | Stanolind Permian LLC | Midland, TX 79705 | Oil & Gas Operator | Dec 2025 |
| 28106 | Stanolind Production LLC | Midland, TX 79702 | Oil & Gas Operator | Dec 2020 |
| 28107 | Stanolind SJ LLC | Midland, TX 79701 | Oil & Gas Operator | Nov 2018 |
| 28108 | Stanotex, LLC | Katy, TX 77494 | Oil & Gas Operator | Dec 2025 |
| 28109 | Stanton Leo F & Leo H | Wynona, OK 74084 | Oil & Gas Operator | Jun 1999 |
| 28110 | Stanton Mineral Development Inc | Austin, TX 78759 | Oil & Gas Operator | Dec 2025 |
| 28111 | Stanton, Joni R | | Oil Operator | Jul 2025 |
| 28112 | Staples, James W. | Tuleta, TX 78162 | Oil & Gas Operator | Sep 2014 |
| 28113 | Staples, James W. Prod. Co. | Tuleta, TX 78162 | Oil & Gas Operator | Dec 2025 |
| 28114 | Staples, Tommy Oil Co. | Pettus, TX 78146 | Oil & Gas Operator | Mar 2008 |
| 28115 | Star Acquisition VII, LLC | Littleton, CO 801249743 | Oil & Gas Operator | Jul 2007 |
| 28116 | Star Energy Inc | Dayton, PA 16222-4325 | Oil & Gas Operator | Dec 2024 |
| 28117 | Star Expl Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1988 |
| 28118 | Star Falcon Oil Co. | | Oil Operator | Feb 1986 |
| 28119 | Star Of Texas Energy SRVS, Inc. | Austin, TX 78702 | Oil & Gas Operator | Dec 2025 |
| 28120 | Star Oil & Gas | Ben Bolt, TX 78342 | Oil & Gas Operator | Dec 2025 |
| 28121 | Star Oil & Gas, Inc. | | Oil & Gas Operator | Sep 1995 |
| 28122 | Star Oil And Gas LTD | Racine, OH 45771 | Oil & Gas Operator | Dec 2023 |
| 28123 | Star Oil Company | Wichita, KS 67230 | Oil & Gas Operator | Mar 2025 |
| 28124 | Star Oil Operating Company LLC | Laramie, WY 82073 | Oil & Gas Operator | Nov 2025 |
| 28125 | Star One Energy, Inc. | Fort Worth, TX 76163 | Oil & Gas Operator | May 2012 |
| 28126 | Star Operating, Inc | Fort Worth, TX 76185 | Oil & Gas Operator | Dec 2025 |
| 28127 | Star Production, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Dec 2025 |
| 28128 | Star Resources LLC | Englewood, CO 80155-5185 | Oil & Gas Operator | Dec 2013 |
| 28129 | Star Resources, LTD. | Wichita, KS 67202 | Oil Operator | Nov 2002 |
| 28130 | Star-Jet Co. | Gainesville, TX 76240 | Oil Operator | Dec 2025 |
| 28131 | Starbrite Energy LLC | Enid, OK 73702-0549 | Oil & Gas Operator | Oct 2018 |
| 28132 | Starco Exploration, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Dec 2025 |
| 28133 | Stardust Leasing, Inc. | Richmond, TX 77469 | Oil & Gas Operator | Jul 1999 |
| 28134 | Stargas Co | Tulsa, OK 74136-5407 | Oil & Gas Operator | Aug 2013 |
| 28135 | Stark Oil Properties | Asher, OK 74826 | Oil & Gas Operator | Jan 1997 |
| 28136 | Stark Petroleum | Tuleta, TX 78162 | Oil & Gas Operator | Dec 2025 |
| 28137 | Starkey Oilfield Service, Inc. | Sweet Home, TX 77987 | Oil & Gas Operator | Aug 2004 |
| 28138 | Starks Leslie | Wetumka, OK 74883-0003 | Oil & Gas Operator | Oct 1995 |
| 28139 | Starlight Resources LLC | | Oil & Gas Operator | Apr 2006 |
| 28140 | Starlight Ridge | Whitesboro, TX 76273 | Oil & Gas Operator | Dec 2025 |
| 28141 | Starr County Exploration, Inc. | Houston, TX 77267 | Gas Operator | Dec 1995 |
| 28142 | Starr Operating Company | Austin, TX 78759 | Oil & Gas Operator | Dec 2025 |
| 28143 | Starr Operating, LLC | San Antonio, TX 78209 | Oil & Gas Operator | Dec 2025 |
| 28144 | Starrak Operating Company, Inc. | Midland, TX 79706 | Oil & Gas Operator | Jun 1999 |
| 28145 | Startap, Inc. | Conroe, TX 77305 | Oil Operator | Dec 2025 |
| 28146 | Startex Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 28147 | Stasney Well Service, LLC | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 28148 | Stasney, H. R. & Sons, LTD. | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 28149 | State Energy & Investment Inc. | | Oil & Gas Operator | Mar 1990 |
| 28150 | State Lands Commission | | Oil & Gas Operator | Oct 2025 |
| 28151 | State Line Exploration, LLC | | Oil & Gas Operator | Dec 2024 |
| 28152 | State Line Vacuum Services, LLC | | Oil Operator | Mar 2021 |
| 28153 | State Oil Company | | Oil & Gas Operator | Mar 2006 |
| 28154 | States Exploration Inc | | Oil Operator | Jul 1985 |
| 28155 | Stateside Energy Group LLC | North Miami Beach, FL 33435 | Oil & Gas Operator | Dec 2024 |
| 28156 | Stateside Energy LLC | St Leonard, QC H1T-4C4 | Oil & Gas Operator | Mar 2024 |
| 28157 | Statex Operating, LLC | Dallas, TX 75229 | Oil & Gas Operator | Mar 2007 |
| 28158 | Statex Petroleum Inc | Dallas, TX 75229 | Oil & Gas Operator | Dec 2000 |
| 28159 | Statia Enterprises, Inc | Irving, TX 75014 | Oil & Gas Operator | Dec 2025 |
| 28160 | Statoil Exploration (Us) Inc. | | Oil & Gas Operator | Jul 1997 |
| 28161 | Statoil Oil & Gas LP | Austin, TX 78730 | Oil & Gas Operator | Oct 2018 |
| 28162 | Statoil Texas Onshore Prop LLC | Austin, TX 78730 | Oil & Gas Operator | Dec 2018 |
| 28163 | Statoil USA Onshore Properties Inc | Austin, TX 78730 | Oil & Gas Operator | Jun 2018 |
| 28164 | Staton Petroleum Inc | | Oil & Gas Operator | Dec 1994 |
| 28165 | Status Oil Well, Inc. | Charlotte, NC 28270 | Oil & Gas Operator | Dec 2011 |
| 28166 | Staub, Larry | Richardson, TX 75080 | Oil & Gas Operator | Aug 2003 |
| 28167 | Staub, Larry, Inc. | Azle, TX 76020 | Oil & Gas Operator | Dec 2025 |
| 28168 | Stauffer Oil & G | | Oil Operator | Jun 1987 |
| 28169 | Stauros Operating Company | Edmond, OK 73083-2707 | Oil & Gas Operator | Mar 2001 |
| 28170 | Stauter, Richard J. | Greeley, CO 80634 | Gas Operator | Apr 1996 |
| 28171 | STB Energy Inc. | Tulsa, OK 74105 | Oil & Gas Operator | Jul 2008 |
| 28172 | STD Steel | Latrobe, PA 15650-0071 | Oil & Gas Operator | Dec 2002 |
| 28173 | Steadfast Oil & Gas, LLC | Midland, TX 79707 | Oil & Gas Operator | Oct 2022 |
| 28174 | Stealth Energy Inc | Billings, MT 59101 | Oil Operator | Dec 2011 |
| 28175 | Stealth Energy USA Inc | Billings, MT 59104 | Oil Operator | Dec 2017 |
| 28176 | Stealth Onsite Solutions LLC | Pasadena, TX 77505 | Oil Operator | Dec 2025 |
| 28177 | Stealth, Inc. | Cross Plains, TX 76443 | Gas Operator | Mar 1997 |
| 28178 | Steamboat Oil And Gas LLC | Gillette, WY 82717 | Oil Operator | Nov 2025 |
| 28179 | Stearns | Crossroads, NM 88114 | Oil & Gas Operator | Aug 2025 |
| 28180 | Stearns Oil Company LLC | Willison, ND 58801 | Oil & Gas Operator | Nov 2025 |
| 28181 | Stearns Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Oct 1993 |
| 28182 | Steaua Romana (Us) Inc. | | Oil & Gas Operator | Apr 1987 |
| 28183 | Stebell, Jean M. | Westfield, NY 14787 | Gas Operator | Dec 2024 |
| 28184 | Stebeth Gas Production, Inc. | Beaumont, KS 67012 | Oil Operator | May 1996 |
| 28185 | Steckel Oil, LLC | Russell, KS 67665 | Oil Operator | Jun 2025 |
| 28186 | Stecklein Oil Co | | Oil Operator | Jul 1993 |
| 28187 | Stecklein Oil Company, A General Partnership | Hays, KS 67601 | Oil Operator | May 2025 |
| 28188 | Stedman Energy Inc | Chautauqua, NY 14722 | Oil & Gas Operator | Dec 2024 |
| 28189 | Stedman Oil & Gas LLC | Hobart, OK 73651-1624 | Oil & Gas Operator | Mar 2015 |
| 28190 | Steele Jr Guy M Test Trust | Dallas, TX 75230 | Gas Operator | Mar 2018 |
| 28191 | Steele VIctor Patterson | Wewoka, OK 74884-0560 | Oil & Gas Operator | Jan 2001 |
| 28192 | Steele, Mark E. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 28193 | Stefanik A Louis | Vandergrift, PA 15690-0476 | Oil & Gas Operator | Dec 2008 |
| 28194 | Steffen Resource Development, LLC | Hutchinson, KS 67502 | Oil & Gas Operator | Jun 2025 |
| 28195 | Steffey, John E | Glasgow, KY 42141 | Oil Operator | Dec 2023 |
| 28196 | Stehle Oil Company | | Oil Operator | Jun 2021 |
| 28197 | Steimle, Peter C. | Auburn, NY 13021 | Gas Operator | Dec 2024 |
| 28198 | Steinberger Bros., Inc. | Independence, KS 67301 | Oil Operator | Dec 2009 |
| 28199 | Steinberger Oil Company | Independence, KS 67301 | Oil & Gas Operator | May 2002 |
| 28200 | Steinberger, D. | Windthorst, TX 76389 | Oil & Gas Operator | Oct 1995 |