| 19101 | McCabe Oil And Gas LLC / Osage Only | | Oil Operator | Nov 2025 |
| 19102 | McCabe, William G | | Oil & Gas Operator | Aug 2013 |
| 19103 | McCaffery & Krampf Oil Co. | Allegany, NY 14706 | Oil Operator | Dec 2012 |
| 19104 | McCall Carl E | Fairmount City, PA 16224 | Oil & Gas Operator | Dec 2025 |
| 19105 | McCamey Oil And Gas LLC | MC Camey, TX 79752 | Oil Operator | Feb 2026 |
| 19106 | McCammon Oil & Gas, Inc. | San Angelo, TX 76902 | Oil & Gas Operator | Feb 2026 |
| 19107 | McCandless Rober | | Oil & Gas Operator | May 1991 |
| 19108 | McCandlish R L Oil Co Inc | Bremen, OH 43107 | Oil & Gas Operator | Dec 1997 |
| 19109 | McCann Corporation | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 19110 | McCann Drilling | | Oil & Gas Operator | Oct 1996 |
| 19111 | McCann Drilling, Inc. | Bartlesville, OK 74003 | Oil Operator | Mar 2011 |
| 19112 | McCann Mark Wind | | Oil & Gas Operator | Dec 1994 |
| 19113 | McCann Petroleum, Inc. | Sedan, KS 67361 | Oil & Gas Operator | Jul 1998 |
| 19114 | McCann Resources Inc | | Oil & Gas Operator | Nov 2025 |
| 19115 | McCarley, Emit/Ray, John Murray | | Gas Operator | Aug 2009 |
| 19116 | McCart Sue | Okmulgee, OK 74447 | Oil & Gas Operator | Nov 2024 |
| 19117 | McCarter | | Gas Operator | Nov 1996 |
| 19118 | McCarter, A. Nelson | Houston, TX 77063 | Oil & Gas Operator | Aug 2003 |
| 19119 | McCarter, W. B. Jr. | Houston, TX 77063 | Oil & Gas Operator | Feb 2002 |
| 19120 | McCarter-Greenbrier-Macdonald | | Oil Operator | Sep 1981 |
| 19121 | McCarthy Oil & Gas Corporation | Houston, TX 77056 | Oil & Gas Operator | Oct 2007 |
| 19122 | McCarthy Oil Co. | | Oil Operator | Dec 1998 |
| 19123 | McCarthy Oil Com | | Oil Operator | Jun 1994 |
| 19124 | McCarthy Tim W - | | Oil Operator | Mar 1994 |
| 19125 | McCarthy, Lawrence J. | Plains, MT 59859-9215 | Oil & Gas Operator | Nov 2011 |
| 19126 | McCartney Engineering LLC | Wheat Ridge, CO 80033 | Oil & Gas Operator | Dec 2025 |
| 19127 | McCarty Francis | | Oil Operator | Sep 1993 |
| 19128 | McCarty, Charles E | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 19129 | McCaskey, Jeffrey A. | East Aurora, NY 14052 | Gas Operator | Dec 2024 |
| 19130 | McCasland Management Inc | Hobbs, NM 88240 | Oil & Gas Operator | Aug 2020 |
| 19131 | McCauley Operating Co., Inc. | | Gas Operator | Mar 1999 |
| 19132 | McCauley Production | Graham, TX 76450 | Oil Operator | Feb 2026 |
| 19133 | McCauley, F. R. | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
| 19134 | McChesney Michael & Ayo Joseph R | Pinedale, WY 82941-1282 | Oil Operator | Nov 2019 |
| 19135 | McClain Oil Co | Granville, OH 43023 | Oil & Gas Operator | Dec 1988 |
| 19136 | McClane Energy Inc | | Oil & Gas Operator | Aug 2017 |
| 19137 | McCleese Enterprises LLC | Richardson, TX 75082-4839 | Gas Operator | Dec 2017 |
| 19138 | McClellan Oil Corporation | Roswell, NM 882020730 | Oil & Gas Operator | May 2015 |
| 19139 | McClelland Creek Properties,Inc. | Pampa, TX 79066 | Oil & Gas Operator | Feb 2026 |
| 19140 | McClelland Oil - | | Oil Operator | Dec 2009 |
| 19141 | McClelland, C.R. Operations, Inc. | Madison, KS 66860 | Oil Operator | Aug 1998 |
| 19142 | McClintock V C | Casper, WY 82601 | Oil & Gas Operator | May 2024 |
| 19143 | McClintock, Robert T | | Oil & Gas Operator | Oct 2025 |
| 19144 | McClinton & 4-M Invest Inc | | Oil & Gas Operator | Aug 1992 |
| 19145 | McClinton & Mosing | | Oil & Gas Operator | Oct 1977 |
| 19146 | McClure Brothers | Denton, TX 76210 | Oil & Gas Operator | Feb 2026 |
| 19147 | McClure Enterprises | Recluse, WY 82725 | Oil & Gas Operator | Jul 2025 |
| 19148 | McClure M C Oil | | Oil Operator | Jul 1984 |
| 19149 | McClure Oil Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 19150 | McClure, J.D. Trust | Denton, TX 76209 | Oil & Gas Operator | Feb 2026 |
| 19151 | McCluskey J Sterling | New York, NY 10128-1008 | Gas Operator | Dec 1989 |
| 19152 | McCluskey Willia | | Oil & Gas Operator | Dec 1990 |
| 19153 | McClymond, B. W. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2020 |
| 19154 | McClymond, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2001 |
| 19155 | McClymond, LTD. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2009 |
| 19156 | McColl, Francis E. | Le Roy, NY 14482 | Gas Operator | Dec 2024 |
| 19157 | McComb Oil Inc | Stoneboro, PA 16153-3017 | Oil & Gas Operator | Dec 2025 |
| 19158 | McCombs Energy LLC | Houston, TX 77056 | Oil & Gas Operator | Jan 2006 |
| 19159 | McCombs Energy, LTD. | Houston, TX 77056 | Oil & Gas Operator | Aug 2017 |
| 19160 | McCommons Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 19161 | McConathy & Associates | | Oil & Gas Operator | Dec 1983 |
| 19162 | McConathy Production Co.,Inc. | | Oil & Gas Operator | Jun 1990 |
| 19163 | McConnell And Scully Inc | | Oil Operator | Dec 1993 |
| 19164 | McConnell Oil Properties | | Oil Operator | Sep 2025 |
| 19165 | McConnell, B L Operating | Fruita, CO 81521 | Oil & Gas Operator | Aug 1985 |
| 19166 | McCool John E | Youngsville, PA 16371 | Oil & Gas Operator | Dec 2025 |
| 19167 | McCord Al Inc | Norman, OK 73072-6720 | Oil & Gas Operator | Feb 2011 |
| 19168 | McCord Exploration Co. | | Oil & Gas Operator | Dec 1990 |
| 19169 | McCord J K | Duncan, OK 73534-0032 | Oil Operator | Mar 2009 |
| 19170 | McCord Oil Co. And T. Walker | | Oil & Gas Operator | Dec 1985 |
| 19171 | McCord Production, LTD. | Houston, TX 77002 | Gas Operator | Feb 1997 |
| 19172 | McCord-Dale Exploration | | Oil & Gas Operator | May 1986 |
| 19173 | McCord-Goodrich Oil Company | | Oil & Gas Operator | Oct 1991 |
| 19174 | McCorgary Martin E | Arkansas City, KS 67005-5452 | Oil & Gas Operator | Nov 2025 |
| 19175 | McCorgary Operations | | Oil & Gas Operator | Sep 2025 |
| 19176 | McCorkle, Frank R. & Kathleen A. | Sedan, KS 67361 | Oil Operator | Oct 2009 |
| 19177 | McCormack, Lowell Ray | Gainesville, TX 76240 | Oil & Gas Operator | Dec 1993 |
| 19178 | McCormack, Paul H. | Gainesville, TX 76241 | Oil & Gas Operator | Sep 2003 |
| 19179 | McCormick Operating Company | | Oil & Gas Operator | Mar 1984 |
| 19180 | McCormick Operating PRTNSHP | | Oil & Gas Operator | Sep 1985 |
| 19181 | McCormick Operating, L.L.C. | Olney, TX 76374 | Oil Operator | Sep 2015 |
| 19182 | McCormick Production Co, Inc. | Oil City, LA 71061 | Oil & Gas Operator | Feb 2026 |
| 19183 | McCormick, Mark | Java Center, NY 14082 | Gas Operator | Dec 2024 |
| 19184 | McCormick, Ronald R. | Java Center, NY 14082 | Gas Operator | Dec 2024 |
| 19185 | McCormick, Terrance & Anne | Andover, NY 14806 | Oil & Gas Operator | Dec 2024 |
| 19186 | McCormick-Bintliff | | Oil & Gas Operator | Feb 1984 |
| 19187 | McCormick-Bintliff-Pettit | | Oil & Gas Operator | Feb 1984 |
| 19188 | McCormick-Ciroco, Inc. | | Oil & Gas Operator | Jan 1984 |
| 19189 | McCormick-Terra-Bintliff | | Oil & Gas Operator | Dec 1979 |
| 19190 | McCormick-WHB | | Gas Operator | Jan 1984 |
| 19191 | McCort Brian L | Malaga, OH 43757 | Oil & Gas Operator | Dec 2024 |
| 19192 | McCown Engineering | Wichita Falls, TX 76310 | Oil & Gas Operator | Feb 2026 |
| 19193 | McCoy Alex W & Associates | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2009 |
| 19194 | McCoy Natural Gas Co | Oil City, PA 16301-3003 | Gas Operator | Dec 1995 |
| 19195 | McCoy Petroleum | | Oil & Gas Operator | Aug 1996 |
| 19196 | McCoy Petroleum Corporation | Wichita, KS 67207 | Oil & Gas Operator | Dec 2025 |
| 19197 | McCoy Production | El Dorado, KS 67042 | Oil Operator | Dec 2019 |
| 19198 | McCoy, Jon | Erie, KS 66733 | Oil Operator | Sep 2025 |
| 19199 | McCracken Energy Services, LLC | Bradford, PA 16701 | Oil & Gas Operator | Dec 2024 |
| 19200 | McCracken Oil & Gas, LLC | Bradford, PA 16701 | Oil & Gas Operator | Dec 2024 |