| 19101 | Middle Bay Production Co. Inc. | Houston, TX 77010 | Oil & Gas Operator | Sep 2014 |
| 19102 | Middle Fork Energy Uinta, LLC | Denver, CO 80202 | Oil & Gas Operator | Jul 2025 |
| 19103 | Middleton Oil Company | Houston, TX 77006 | Oil & Gas Operator | Oct 2025 |
| 19104 | Mideast Gas Systems, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2005 |
| 19105 | Midenergy Operating, LLC | Houston, TX 77024 | Oil & Gas Operator | Oct 2025 |
| 19106 | Midgard Energy Company | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2014 |
| 19107 | Midkiff, John | Midland, TX 79705 | Oil & Gas Operator | Mar 2008 |
| 19108 | Midla, LTD. | | Oil & Gas Operator | Jun 1990 |
| 19109 | Midland Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 19110 | Midland Oil And Gas, Inc. | Midland, TX 79705 | Oil & Gas Operator | Oct 2025 |
| 19111 | Midland Oil Co | Brownsville, OH 43721 | Oil & Gas Operator | Dec 2000 |
| 19112 | Midland Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Jun 2025 |
| 19113 | Midland Res. Oper. Co., Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 1998 |
| 19114 | Midland Southwest Cold Lake Inc | Midland, TX 79702 | Oil & Gas Operator | Jun 1997 |
| 19115 | Midland TMG Inc. | Midland, TX 79705 | Oil & Gas Operator | Apr 2017 |
| 19116 | Midland Workover, Inc. | | Oil & Gas Operator | Dec 2024 |
| 19117 | Midlands Gas Cor | | Gas Operator | Dec 1996 |
| 19118 | Midnight Drilling LLC | | Oil & Gas Operator | Jan 2016 |
| 19119 | Midnight Energy Operating LLC | Drumright, OK 74030 | Oil Operator | Jun 2025 |
| 19120 | Midnight Hour LLC | Enid, OK 73702 | Oil & Gas Operator | Apr 2020 |
| 19121 | Midnight Well Se | | Oil Operator | Sep 1994 |
| 19122 | Midnite Oil Co. | Wichita Falls, TX 76310 | Oil & Gas Operator | Oct 2025 |
| 19123 | Midpar L.P. | Midland, TX 79702 | Oil & Gas Operator | Feb 1995 |
| 19124 | Midroc Oil Company Et Al | | Oil Operator | Nov 1984 |
| 19125 | Midroc Operating Co. & Watkins, H. Vaughan, Jr. | | Oil & Gas Operator | Feb 2010 |
| 19126 | Midroc Operating Co. & Watkins, H. Vaughan, Jr. & Placid Oil Co. | | Oil & Gas Operator | May 1991 |
| 19127 | Midroc Operating Company | | Oil & Gas Operator | Apr 2013 |
| 19128 | Midsco | Cross Plains, TX 76443 | Oil & Gas Operator | Oct 2025 |
| 19129 | Midstate Employment Services LLC | | Oil Operator | Apr 2024 |
| 19130 | Midstate Energy Inc | | Oil & Gas Operator | Aug 2017 |
| 19131 | Midstate Oil & Gas Company | Shawnee, OK 74801 | Oil & Gas Operator | Jun 2025 |
| 19132 | Midstates Corporation | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2025 |
| 19133 | Midstates Energy Operating, LLC | FT Myers, FL 33912 | Oil Operator | Jun 2025 |
| 19134 | Midstates Oil Company | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2000 |
| 19135 | Midstates Petroleum Company LLC | Tulsa, OK 74103 | Oil & Gas Operator | May 2018 |
| 19136 | Midstates Petroleum Corp. | | Oil & Gas Operator | Dec 2008 |
| 19137 | Midville Energy, LLC. | Midland, TX 79705 | Oil & Gas Operator | Jul 2024 |
| 19138 | Midway City Gas Company | Huntington, WV 25701 | Oil & Gas Operator | Dec 2018 |
| 19139 | Midway Drilling | | Oil & Gas Operator | Dec 1996 |
| 19140 | Midway Drilling Co. | Richmond, TX 77469 | Oil & Gas Operator | Oct 2025 |
| 19141 | Midway Energy, LLC | Thermopolis, WY 82443 | Oil Operator | Jun 2025 |
| 19142 | Midway Leasing Inc | Haskell, OK 74436-2406 | Oil & Gas Operator | Jan 2024 |
| 19143 | Midway Operating Co. | Great Bend, KS 67530 | Oil Operator | Jan 1998 |
| 19144 | Midway Operating Company, L.L.C. | Woodward, OK 73802 | Oil & Gas Operator | Oct 2025 |
| 19145 | Midway Production Co. | | Gas Operator | May 1990 |
| 19146 | Midway Terrel Operating Co | | Oil & Gas Operator | Dec 1999 |
| 19147 | Midway Testing Company Inc | | Gas Operator | Mar 1984 |
| 19148 | Midway-Sunset Investors LLC | | Oil & Gas Operator | Aug 2025 |
| 19149 | Midwest Energy Companies, Inc. | | Oil & Gas Operator | Feb 1998 |
| 19150 | Midwest Energy Corporation | Tulsa, OK 74105-6083 | Oil & Gas Operator | Aug 2016 |
| 19151 | Midwest Enterprises, Inc. | Cashion, OK 73016-9626 | Oil & Gas Operator | Apr 2025 |
| 19152 | Midwest Eor Inc | Tulsa, OK 74105-6059 | Oil & Gas Operator | May 2013 |
| 19153 | Midwest Exploration Inc | Villa Park, IL 60181 | Oil & Gas Operator | Dec 1990 |
| 19154 | Midwest Oil & Gas | Columbus, OH 43220-1836 | Oil & Gas Operator | Dec 2021 |
| 19155 | Midwest Oil Company | Beggs, OK 74421-2976 | Oil Operator | Apr 2015 |
| 19156 | Midwest Oil, LLC | Destin, FL 32541 | Oil Operator | Aug 2024 |
| 19157 | Midwest Operating Company Inc | Tulsa, OK 74105-6059 | Oil & Gas Operator | Nov 1999 |
| 19158 | Midwest Pipe & Supply Company | Oklahoma City, OK 73154-0245 | Oil & Gas Operator | Dec 2008 |
| 19159 | Midwest Radiant Oil & Gas Co | | Oil Operator | Dec 2020 |
| 19160 | Midwest Turf | El Dorado, KS 67042 | Oil Operator | Jun 1998 |
| 19161 | Midwestern Energy | Mankato, MN 56003 | Oil & Gas Operator | Oct 2025 |
| 19162 | Midwestern Exploration Co. | Edmond, OK 73013 | Oil & Gas Operator | May 2025 |
| 19163 | Midwestern Oil C | | Oil & Gas Operator | May 1995 |
| 19164 | Midwestern Suppl | | Oil Operator | Oct 1986 |
| 19165 | Mieka LLC | Flower Mound, TX 75028-7446 | Oil & Gas Operator | Dec 2014 |
| 19166 | Miesch Exploration Corporation | Dallas, TX 75229 | Oil & Gas Operator | Nov 2002 |
| 19167 | Migwis | Great Bend, KS 67530 | Oil Operator | Mar 1988 |
| 19168 | Migwis Operating LLC | Cushing, OK 74023-4854 | Oil & Gas Operator | Oct 2020 |
| 19169 | Mihalik Paul | Madison, OH 44057 | Oil & Gas Operator | Dec 2024 |
| 19170 | Mija LLC | Oklahoma City, OK 73151 | Oil & Gas Operator | Jul 2025 |
| 19171 | Mikal R Brown Oil LLC | Cleveland, OK 74020-6475 | Oil Operator | Dec 2022 |
| 19172 | Mikarden Energy Inc | Sapulpa, OK 74066 | Oil Operator | Jun 2025 |
| 19173 | Mikco Inc | Tulsa, OK 74133 | Oil & Gas Operator | May 2001 |
| 19174 | Mike Blaes & Peggy Blaes, A General Partnership | Cherryvale, KS 67335 | Oil Operator | Mar 2025 |
| 19175 | Mike Bonner | | Oil Operator | Aug 1999 |
| 19176 | Mike Kelso Oil, Inc. | Chase, KS 67524 | Oil & Gas Operator | Jun 2025 |
| 19177 | Mike Oil LLC | Colorado City, TX 79512 | Oil Operator | Oct 2025 |
| 19178 | Miken Oil, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2025 |
| 19179 | Mikol Oil LLC | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 19180 | Mil-Cro Inc. | | Oil Operator | Jan 1994 |
| 19181 | Milagro Exploration, LLC | Houston, TX 77010 | Oil & Gas Operator | Aug 2018 |
| 19182 | Milam Oil Corp Dba Milam Construction | El Dorado, AR 71730 | Oil & Gas Operator | Jan 2025 |
| 19183 | Milam, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 2025 |
| 19184 | Milburn R Kenneth | Ardmore, OK 73402-1118 | Oil & Gas Operator | Sep 2014 |
| 19185 | Milburn Robert G | Countyline, OK 73025 | Oil Operator | Apr 2020 |
| 19186 | Milburn, Harold J. | Hutchinson, KS 67502 | Oil & Gas Operator | Sep 2003 |
| 19187 | Mild Oil Company | Duncan, OK 73533-9532 | Oil Operator | Mar 2000 |
| 19188 | Miles Oil & Gas Co. | | Oil & Gas Operator | Feb 1988 |
| 19189 | Miles Production Co. | Argyle, TX 76226 | Oil & Gas Operator | Mar 2008 |
| 19190 | Milestone Operating, Inc. | Montgomery, TX 77316 | Oil & Gas Operator | Oct 2025 |
| 19191 | Milestone Pet/El Paso Expl | | Oil & Gas Operator | Jul 1985 |
| 19192 | Miley Gas Company | Sarahsville, OH 43779 | Gas Operator | Dec 2023 |
| 19193 | Milford Oil Co | Tatum, NM 88267 | Oil & Gas Operator | Feb 1995 |
| 19194 | Milhoan, Douglas L And Janet L | Belleville, WV 26133 | Gas Operator | Dec 2021 |
| 19195 | Millennium Exploration Co. LLC | San Antonio, TX 78232 | Oil & Gas Operator | Oct 2025 |
| 19196 | Millennium Minerals Corporation | Fredericksbrg, TX 78624 | Oil Operator | Oct 2025 |
| 19197 | Millennium Offshore Group, Inc. | Houston, TX 77007 | Oil & Gas Operator | Sep 2005 |
| 19198 | Millennium Oil & Gas Inc | Dexter, KS 67038 | Oil & Gas Operator | Dec 2024 |
| 19199 | Millennium Oil & Gas LLC | Denver, CO 80203 | Oil & Gas Operator | Aug 2025 |
| 19200 | Millennium Operating Company | Houston, TX 77057 | Oil & Gas Operator | Oct 2025 |