| 19201 | Mem Partnership LP, A General Partnership | Spring, TX 77393 | Oil Operator | Dec 2024 |
| 19202 | Memaca Petroleum Corporation | | Oil & Gas Operator | Jan 1990 |
| 19203 | Memorial Exploration Company | Saint Louis, MO 63105 | Oil & Gas Operator | Aug 1996 |
| 19204 | Memorial Production Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 19205 | Menasco, J. | Wichita Falls, TX 76310 | Oil & Gas Operator | Dec 2019 |
| 19206 | Mendell Davis Gas Partners LLC | | Oil & Gas Operator | Dec 2013 |
| 19207 | Mendell Finisterre II LLC | | Oil & Gas Operator | Jun 2017 |
| 19208 | Mendell Niobrara LLC | | Oil & Gas Operator | Apr 2017 |
| 19209 | Mendell Petroleum Corporation | Castle Rock, CO 80104-9045 | Oil & Gas Operator | Sep 2004 |
| 19210 | Meng Oper. & Expl. Co. | | Oil & Gas Operator | Dec 1989 |
| 19211 | Meng, Charles H | Lexington, KY 40502 | Gas Operator | Dec 2023 |
| 19212 | Menoah Petroleum Inc | | Oil & Gas Operator | Dec 2024 |
| 19213 | Mentren Corporation | | Gas Operator | Dec 2024 |
| 19214 | Mep Operating LLC | Houston, TX 77056-2733 | Oil & Gas Operator | Jan 2025 |
| 19215 | Mer Resources | Edmond, OK 73013 | Oil & Gas Operator | Apr 2025 |
| 19216 | Mer Resources Inc | Edmond, OK 73013-7662 | Oil & Gas Operator | Mar 2015 |
| 19217 | Mer-Bar Exploration Co Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Oct 1992 |
| 19218 | Mercantile Oil & Gas Prod. Corp. | Galena Park, TX 77547 | Oil & Gas Operator | Jun 2016 |
| 19219 | Mercer Oil & Gas Co. | Norman, OK 73070 | Oil & Gas Operator | Apr 2015 |
| 19220 | Mercer Pet Management Inc | Edmond, OK 73013-6677 | Oil & Gas Operator | Jan 2011 |
| 19221 | Mercury Exploration Co | Fort Worth, TX 76104 | Oil & Gas Operator | Dec 2006 |
| 19222 | Mercury Operating, LLC | Dallas, TX 75208 | Oil & Gas Operator | Apr 2025 |
| 19223 | Mercury Petroleum Company, Inc | | Oil Operator | Dec 2018 |
| 19224 | Mercury Resources LLC | | Oil & Gas Operator | Feb 2025 |
| 19225 | Meredith Enterprises | | Oil Operator | Jun 1988 |
| 19226 | Mereken Energy Corp. | Fort Worth, TX 76102 | Gas Operator | Feb 2006 |
| 19227 | Merelco Inc | Seminole, OK 74868 | Oil Operator | Jun 2014 |
| 19228 | Merenco | Midland, TX 79702 | Oil & Gas Operator | Dec 1996 |
| 19229 | Merex Resources, Inc. | Amarillo, TX 79159 | Oil & Gas Operator | Sep 2019 |
| 19230 | Merica Oil Operating Company | Frisco, TX 75034 | Oil & Gas Operator | Sep 2024 |
| 19231 | Merica Oil Operating Company LLC | Frisco, TX 75034 | Oil Operator | Dec 2024 |
| 19232 | Meridian Energy Company | Cambridge, OH 43725 | Oil & Gas Operator | Dec 2010 |
| 19233 | Meridian Energy Inc. | | Oil Operator | Dec 2024 |
| 19234 | Meridian Exploration Inc | Oklahoma City, OK 73128 | Oil & Gas Operator | Aug 2013 |
| 19235 | Meridian Exploration Corp. | Pittsburgh, PA 15222 | Oil & Gas Operator | Dec 2021 |
| 19236 | Meridian Interests, Inc. | San Antonio, TX 78239 | Oil & Gas Operator | Aug 2003 |
| 19237 | Meridian Oil & Gas Enter | Blairsville, PA 15717-0337-0337 | Oil & Gas Operator | Dec 2004 |
| 19238 | Meridian Oil & Gas Enterprises Inc | Blairsville, PA 15717-0337 | Oil & Gas Operator | Dec 2003 |
| 19239 | Meridian Oil Inc. | Houston, TX 77210 | Oil & Gas Operator | Aug 1996 |
| 19240 | Meridian Oil Inc.-Midland | Midland, TX 79702 | Oil & Gas Operator | Jul 1996 |
| 19241 | Meridian Oil Offshore Inc. | | Oil & Gas Operator | Aug 1996 |
| 19242 | Meridian Oil Production Inc. | Houston, TX 77210 | Oil & Gas Operator | Aug 2024 |
| 19243 | Meridian Production Services LLC | | Oil & Gas Operator | Jan 2025 |
| 19244 | Meridian Resource & Expl Co, The | Houston, TX 77077 | Oil & Gas Operator | Dec 2000 |
| 19245 | Meridian Resource & Expl LLC,The | Houston, TX 77094 | Oil & Gas Operator | Nov 2012 |
| 19246 | Meridian Resources (USA) Inc. | | Oil & Gas Operator | Aug 2024 |
| 19247 | Meridian Resources, LLC | Evansville, IN 47715 | Oil Operator | Jul 2024 |
| 19248 | Merimac Investments, Inc. | Fort Worth, TX 76109 | Oil & Gas Operator | Jan 1997 |
| 19249 | Merit Energy Co. Dba Alabama Merit Energy Co., Inc. | | Oil & Gas Operator | Aug 2005 |
| 19250 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Apr 2025 |
| 19251 | Merit Energy Company, LLC | Dallas, TX 75240 | Oil & Gas Operator | Jan 2025 |
| 19252 | Merit Field LLC | | Oil & Gas Operator | Dec 2001 |
| 19253 | Merit Oil Company | San Angelo, TX 76901 | Oil & Gas Operator | May 1994 |
| 19254 | Merit Productions | | Oil Operator | Sep 1996 |
| 19255 | Meritage Energy Company LLC | Denver, CO 80202 | Oil & Gas Operator | May 2013 |
| 19256 | Meritage Energy Partners LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2005 |
| 19257 | Meritage Homes Of California Inc. | | Oil Operator | Dec 2020 |
| 19258 | Merkaz Drilling, LLC | Dallas, TX 75229 | Oil Operator | Apr 2025 |
| 19259 | Merkin LLC | Austin, TX 78737 | Oil Operator | Apr 2025 |
| 19260 | Merl Wiggins Et Al | | Oil & Gas Operator | Sep 1996 |
| 19261 | Merlin J Verret | | Gas Operator | Jun 1986 |
| 19262 | Merlon Texas, Inc. | Houston, TX 77056 | Oil Operator | Jun 2013 |
| 19263 | Mermac Operating Company Inc | Norman, OK 73072 | Oil & Gas Operator | Mar 2015 |
| 19264 | Meroda Resources LLC | Mustang, OK 73064-9408 | Oil & Gas Operator | Apr 2000 |
| 19265 | Merrick Oil & Gas | | Oil & Gas Operator | Sep 2024 |
| 19266 | Merrick Ward S Inc | Ardmore, OK 73402 | Oil & Gas Operator | Feb 2001 |
| 19267 | Merrico Resource | | Oil Operator | Dec 1996 |
| 19268 | Merrico Resources | | Oil Operator | Mar 1992 |
| 19269 | Merrico Resources, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2008 |
| 19270 | Merrill Natural Res Inc | Woodsfield, OH 43793 | Oil & Gas Operator | Dec 1985 |
| 19271 | Merrill Operating, LLC | Snyder, TX 79550 | Oil Operator | Apr 2016 |
| 19272 | Merrill, Brian G. | Depew, NY 14043 | Gas Operator | Dec 2023 |
| 19273 | Merrimac Energy Corp. | Dallas, TX 75206 | Oil & Gas Operator | Aug 1999 |
| 19274 | Merrimac Oil & Gas LLC | Houston, TX 77054 | Gas Operator | Dec 2008 |
| 19275 | Merrion & Bayless | Farmington, NM 87401 | Oil & Gas Operator | May 1982 |
| 19276 | Merrion Oil & Gas Corp | Farmington, NM 87401 | Oil & Gas Operator | Feb 2025 |
| 19277 | Merritt Oil Comp | | Oil Operator | Jan 1990 |
| 19278 | Merritt Operating, Inc. | Mineola, TX 75773 | Oil & Gas Operator | Apr 2025 |
| 19279 | Merritt, William Kevin | Dallas, TX 75225 | Oil & Gas Operator | Dec 1994 |
| 19280 | Mert Development Inc | | Oil & Gas Operator | Dec 2021 |
| 19281 | Merta, Mike | Alice, TX 78333 | Oil & Gas Operator | Aug 2005 |
| 19282 | Mertz Energy LLC | Houston, TX 77098 | Oil & Gas Operator | Jan 2025 |
| 19283 | Mervin Troyer | Union City, PA 16438-8510 | Gas Operator | Dec 2008 |
| 19284 | Mervine Oil Company Inc | Blackwell, OK 74631-0514 | Oil Operator | Jan 2013 |
| 19285 | Merzbacher, George F. Jr. | Robstown, TX 78380 | Oil & Gas Operator | May 1994 |
| 19286 | Mesa Chica Corp. | San Antonio, TX 78278 | Oil & Gas Operator | May 2018 |
| 19287 | Mesa Energy Partners LLC | | Oil & Gas Operator | Sep 2015 |
| 19288 | Mesa Energy, Inc. | Austin, TX 78755 | Oil & Gas Operator | Dec 2013 |
| 19289 | Mesa Exploration Company Inc | Shawnee, OK 74801 | Oil & Gas Operator | Jan 2025 |
| 19290 | Mesa Gulf Coast LLC | | Oil & Gas Operator | Dec 2020 |
| 19291 | Mesa Hydrocarbons LLC | | Oil & Gas Operator | Sep 2003 |
| 19292 | Mesa Operating Co. | Irving, TX 75039 | Oil & Gas Operator | Aug 1997 |
| 19293 | Mesa Operating L | | Oil & Gas Operator | Dec 1996 |
| 19294 | Mesa Operating LP | Irving, TX 75039-3746 | Oil & Gas Operator | Oct 2010 |
| 19295 | Mesa Operating LTD Partnership | Amarillo, TX 79189 | Oil & Gas Operator | May 1994 |
| 19296 | Mesa Petroleum C | | Oil & Gas Operator | Dec 1986 |
| 19297 | Mesa Petroleum Co. | | Oil & Gas Operator | Aug 1985 |
| 19298 | Mesa Production Company | Amarillo, TX 79189 | Oil & Gas Operator | Dec 1983 |
| 19299 | Mesa Ridge Holdings LLC | Abilene, TX 79603 | Oil Operator | Apr 2025 |
| 19300 | Mesa VIsta Operating, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2025 |