| 101 | Basin Operating Services LLC | Oklahoma City, OK 73106-5615 | Oil & Gas Operator | Oct 2025 |
| 102 | Basis Resources Group LLC | Oklahoma City, OK 73112 | Oil & Gas Operator | Sep 2025 |
| 103 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 104 | Batco Oil Company | Edmond, OK 73083 | Oil & Gas Operator | Feb 2002 |
| 105 | Bateman'S Bay Exploration, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Oct 2025 |
| 106 | Baugh Allan L | Drumright, OK 74030-5914 | Oil & Gas Operator | Oct 2025 |
| 107 | Baulch Enterprises | Ada, OK 74820-8623 | Oil Operator | Dec 1999 |
| 108 | Baxter And Associates Inc | Ada, OK 74820 | Oil & Gas Operator | Oct 2025 |
| 109 | Baxter Randall H | Tulsa, OK 74136-0908 | Oil & Gas Operator | Apr 2020 |
| 110 | Bay Oaks Resources LLC | Fort Smith, AR 72913-3129 | Gas Operator | Feb 2018 |
| 111 | Bay Petroleum Corporation | Lakewood, FL 34202-2852 | Oil & Gas Operator | Mar 2015 |
| 112 | Bayou Oil LLC | Ardmore, OK 73401 | Oil & Gas Operator | Sep 2025 |
| 113 | Bayou Resources Inc | Houston, TX 77056 | Oil & Gas Operator | Jan 2015 |
| 114 | Bays Exploration Inc | Oklahoma City, OK 73116-9044 | Oil & Gas Operator | Oct 2025 |
| 115 | Baytech Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 116 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Dec 2025 |
| 117 | Bce-Mach II LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Dec 2025 |
| 118 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Dec 2025 |
| 119 | Bce-Mach LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2025 |
| 120 | BD Operating LLC | Artesia, NM 88210 | Oil & Gas Operator | Nov 2025 |
| 121 | BDB LLC | Hennessey, OK 73742 | Oil & Gas Operator | Dec 2017 |
| 122 | Be Anadarko II, LLC | Austin, TX 78731 | Oil & Gas Operator | Dec 2025 |
| 123 | Be Anadarko LLC | Wimberley, TX 78676-4418 | Oil & Gas Operator | Jan 2024 |
| 124 | Beach Operating Company | Tulsa, OK 74136-5577 | Oil & Gas Operator | Mar 2013 |
| 125 | Bear Energy LLC | Drumright, OK 74030-0311 | Oil & Gas Operator | Apr 2022 |
| 126 | Bear Petroleum Inc | Haysville, KS 67060-0438 | Oil & Gas Operator | Mar 2015 |
| 127 | Bear Petroleum LLC | Haysville, KS 67060 | Oil & Gas Operator | Sep 2025 |
| 128 | Bear Productions Inc | Kinta, OK 74552 | Oil & Gas Operator | Oct 2025 |
| 129 | Beard English & Martin | Bartlesville, OK 74003 | Oil Operator | Nov 2005 |
| 130 | Beard Oil Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2013 |
| 131 | Beasley Oil Company | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 2020 |
| 132 | Becca Oil LLC | Cushing, OK 74023-1347 | Oil & Gas Operator | Oct 2025 |
| 133 | Bechel Oil, LLC. | Maiden Rock, WI 54750 | Oil Operator | Feb 2022 |
| 134 | Beck Oil & Gas Inc. | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2024 |
| 135 | Beck Oil & Gas, L.L.C. | Duncan, OK 73533 | Oil & Gas Operator | Nov 2025 |
| 136 | Beck Pump & Supply Inc | Hennessey, OK 73742-0175 | Oil & Gas Operator | Nov 2019 |
| 137 | Beck Resources Incorporated | Hennessey, OK 73742 | Oil & Gas Operator | Oct 2025 |
| 138 | Becker Oil Corporation | Ponca City, OK 74602 | Oil & Gas Operator | Oct 2025 |
| 139 | Becktol Linda G | Morris, OK 74445 | Oil & Gas Operator | Jun 2025 |
| 140 | Becsul Energy | Oklahoma City, OK 73127 | Oil Operator | Jan 1992 |
| 141 | Becsul Energy Inc | Oklahoma City, OK 73127-4249 | Oil & Gas Operator | Oct 2025 |
| 142 | Bedford Energy Inc | Oklahoma City, OK 73112-4731 | Oil & Gas Operator | Sep 2016 |
| 143 | Bee Cee Inc | Denton, TX 76206-0689 | Oil & Gas Operator | May 2013 |
| 144 | Beeler Phillip F | Norman, OK 73072-7522 | Oil & Gas Operator | Dec 2014 |
| 145 | Behlen Incorporated | | Oil Operator | Jun 2001 |
| 146 | Beisch, Rusty | Windthorst, TX 76389 | Oil & Gas Operator | Dec 2025 |
| 147 | Belcher James A | Piedmont, OK 73078-7821 | Oil & Gas Operator | Jun 2018 |
| 148 | Belco Development Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 1994 |
| 149 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 150 | Belcor Inc. | Irvine, CA 92714 | Oil & Gas Operator | Nov 2000 |
| 151 | Belisarius LTD | Grove, OK 74344-7445 | Gas Operator | Sep 2014 |
| 152 | Belisle Pete H | Tulsa, OK 74133 | Oil & Gas Operator | Apr 2015 |
| 153 | Bell & Kinley Company LLC | Piedmont, OK 73078-8918 | Oil & Gas Operator | Jul 2021 |
| 154 | Bell Jack | Beggs, OK 74421-2107 | Oil & Gas Operator | Apr 2020 |
| 155 | Bell Supply Co | Kilgore, TX 75662 | Oil & Gas Operator | Jan 2013 |
| 156 | Bellco Materials Inc | Fayetteville, AR 72703 | Oil Operator | Mar 2015 |
| 157 | Bellwether Exploration Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 158 | Belnorth Petroleum Corporation | Midland, TX 79701 | Oil & Gas Operator | Feb 1991 |
| 159 | Below Ground Level LLC | Sand Springs, OK 74063 | Oil & Gas Operator | Dec 2025 |
| 160 | Belport Oil Inc | Tulsa, OK 74119 | Oil & Gas Operator | Oct 2025 |
| 161 | Bench Oil | Duncan, OK 73533 | Oil Operator | Apr 2014 |
| 162 | Benchmark Crude Inc | Tulsa, OK 74105-5920 | Oil & Gas Operator | Sep 2015 |
| 163 | Benchmark Oil & Gas Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2016 |
| 164 | Benchmark Resources Group LTD | Sapulpa, OK 74066-3238 | Oil & Gas Operator | Dec 2000 |
| 165 | Bend Petroleum Corp. | Muenster, TX 76252 | Oil & Gas Operator | Nov 2023 |
| 166 | Benedum-Trees Oil Company | Chicago, IL 60673 | Oil & Gas Operator | Dec 2005 |
| 167 | Benevolent & Protective Order Of Elks | Ada, OK 74820-3031 | Oil Operator | Oct 2025 |
| 168 | Benn Oil & Gas | Perryton, TX 79070 | Oil & Gas Operator | Jun 2005 |
| 169 | Bennd Oil Company | Adams, TN 37010-8002 | Oil Operator | Oct 2025 |
| 170 | Benson Mineral Group, Inc. | Denver, CO 80202 | Oil & Gas Operator | Apr 2022 |
| 171 | Benson Operating LLC | The Colony, TX 75056-3578 | Oil & Gas Operator | Nov 2025 |
| 172 | Bent Tree Energy Resource Inc | Shawnee, OK 74802 | Oil & Gas Operator | Sep 2014 |
| 173 | Bent Twig Operating Corporation | Oklahoma City, OK 73143-4716 | Oil & Gas Operator | Mar 2015 |
| 174 | Bentley & Laing | Wichita Falls, TX 76302 | Oil & Gas Operator | Feb 2002 |
| 175 | Bentley Oil & Gas Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2025 |
| 176 | Benton Energy Corporation | | Oil & Gas Operator | Oct 2025 |
| 177 | Benton Oil & Gas Co | Oxnard, CA 93030 | Oil Operator | Nov 1998 |
| 178 | Ber-Mor Oil Inc | Perry, OK 73077-1212 | Oil & Gas Operator | Jul 2015 |
| 179 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Dec 2025 |
| 180 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Dec 2025 |
| 181 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Dec 2025 |
| 182 | Bergen Floyd | Norman, OK 73072 | Oil & Gas Operator | Mar 2015 |
| 183 | Berger Oil Company | Edmond, OK 73013-2044 | Oil Operator | Mar 2015 |
| 184 | Berry Operating Company | Stillwater, OK 74076-0518 | Oil & Gas Operator | Dec 2016 |
| 185 | Berry, Thomas N. & Co. | Stillwater, OK 74076 | Oil & Gas Operator | Feb 2012 |
| 186 | Bertschinger Oil Company | Oklahoma City, OK 73116-6534 | Oil & Gas Operator | Nov 2015 |
| 187 | Bestmark Production Inc | Yukon, OK 73099 | Oil & Gas Operator | Mar 2011 |
| 188 | Beta Oil Company Inc | Oklahoma City, OK 73157-2958 | Oil & Gas Operator | Sep 2025 |
| 189 | Beta Operating Company, LLC | Houston, TX 77210 | Oil & Gas Operator | Apr 2020 |
| 190 | Bets Oil & Gas | Pawhuska, OK 74056 | Oil & Gas Operator | Nov 2018 |
| 191 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 192 | Betty L Wood Dba Able Oil Company | Morris, OK 74445-2303 | Oil & Gas Operator | Oct 2025 |
| 193 | Beveled Edge Productions LLC | Norman, OK 73069-4941 | Oil Operator | Dec 2019 |
| 194 | Bevo Production Co. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 2014 |
| 195 | Bez Resources LLC | Perry, OK 73077-2204 | Oil & Gas Operator | Mar 2023 |
| 196 | BFS Petroleum Company | Skiatook, OK 74070-3998 | Oil & Gas Operator | Jan 2004 |
| 197 | Bgi Resources LLC | | Oil & Gas Operator | Oct 2025 |
| 198 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 199 | BHP Petroleum Company Inc | Houston, TX 77057 | Oil & Gas Operator | Jun 2016 |
| 200 | Bickham G C Inc | Ada, OK 74820-8304 | Oil Operator | Jun 2017 |