| 18101 | McAninch W Kent | Tonkawa, OK 74653-4216 | Oil & Gas Operator | Oct 2016 |
| 18102 | McBay Company | Grapeland, TX 75844 | Oil & Gas Operator | Feb 2002 |
| 18103 | McBee Company, The | Dallas, TX 75219 | Oil & Gas Operator | Dec 1997 |
| 18104 | McBee Operating Company, L.L.C. | Dallas, TX 75209 | Oil & Gas Operator | Sep 2026 |
| 18105 | McBee, Jim Co. | Santa Anna, TX 76878 | Oil & Gas Operator | Mar 2012 |
| 18106 | McBo Oil Co. | | Oil & Gas Operator | Dec 1996 |
| 18107 | McBrayer Oil Corporation | Rockport, TX 78381 | Oil & Gas Operator | Nov 1994 |
| 18108 | McBride Operating LLC | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 18109 | McBride, Jane | Perry, NY 14530 | Gas Operator | Dec 2025 |
| 18110 | McBride, Jerrel L Enterprise Inc | Kilgore, TX 75663 | Oil & Gas Operator | Jun 1999 |
| 18111 | McBride, Nicholas J. & Holly M. | Lakeland, FL 33810 | Gas Operator | Dec 2025 |
| 18112 | McCabe Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2009 |
| 18113 | McCabe Oil And Gas LLC / Osage Only | | Oil Operator | May 2026 |
| 18114 | McCabe, William G | | Oil & Gas Operator | Aug 2013 |
| 18115 | McCaffery & Krampf Oil Co. | Allegany, NY 14706 | Oil Operator | Dec 2012 |
| 18116 | McCall Carl E | Fairmount City, PA 16224 | Oil & Gas Operator | Dec 2025 |
| 18117 | McCamey Oil And Gas LLC | MC Camey, TX 79752 | Oil Operator | Sep 2026 |
| 18118 | McCammon Oil & Gas, Inc. | San Angelo, TX 76902 | Oil & Gas Operator | Sep 2026 |
| 18119 | McCandless Rober | | Oil & Gas Operator | May 1991 |
| 18120 | McCandlish R L Oil Co Inc | Bremen, OH 43107 | Oil & Gas Operator | Dec 1997 |
| 18121 | McCann Corporation | Midland, TX 79710 | Oil & Gas Operator | Sep 2026 |
| 18122 | McCann Drilling | | Oil & Gas Operator | Oct 1996 |
| 18123 | McCann Drilling, Inc. | Bartlesville, OK 74003 | Oil Operator | Mar 2011 |
| 18124 | McCann Mark Wind | | Oil & Gas Operator | Dec 1994 |
| 18125 | McCann Petroleum, Inc. | Sedan, KS 67361 | Oil & Gas Operator | Jul 1998 |
| 18126 | McCann Resources Inc | | Oil & Gas Operator | May 2026 |
| 18127 | McCart Sue | Okmulgee, OK 74447 | Oil & Gas Operator | May 2026 |
| 18128 | McCarter, A. Nelson | Houston, TX 77063 | Oil & Gas Operator | Aug 2003 |
| 18129 | McCarter, W. B. Jr. | Houston, TX 77063 | Oil & Gas Operator | Feb 2002 |
| 18130 | McCarter-Greenbrier-Macdonald | | Oil Operator | Sep 1981 |
| 18131 | McCarthy Oil & Gas Corporation | Houston, TX 77056 | Oil & Gas Operator | Oct 2007 |
| 18132 | McCarthy Oil Co. | | Oil Operator | Dec 1998 |
| 18133 | McCarthy Oil Com | | Oil Operator | Jun 1994 |
| 18134 | McCarthy Tim W - | | Oil Operator | Mar 1994 |
| 18135 | McCarthy, Lawrence J. | Plains, MT 59859-9215 | Oil & Gas Operator | Nov 2011 |
| 18136 | McCartney Engineering LLC | Wheat Ridge, CO 80033 | Oil & Gas Operator | May 2026 |
| 18137 | McCarty Francis | | Oil Operator | Sep 1993 |
| 18138 | McCarty, Charles E | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 18139 | McCaskey, Jeffrey A. | East Aurora, NY 14052 | Gas Operator | Dec 2025 |
| 18140 | McCasland Management Inc | Hobbs, NM 88240 | Oil & Gas Operator | Aug 2020 |
| 18141 | McCauley Production | Graham, TX 76450 | Oil Operator | Sep 2026 |
| 18142 | McCauley, F. R. | Houston, TX 77002 | Oil & Gas Operator | Apr 2000 |
| 18143 | McChesney Michael & Ayo Joseph R | Pinedale, WY 82941-1282 | Oil Operator | Nov 2019 |
| 18144 | McClain Oil Co | Granville, OH 43023 | Oil & Gas Operator | Dec 1988 |
| 18145 | McClane Energy Inc | | Oil & Gas Operator | Aug 2017 |
| 18146 | McCleese Enterprises LLC | Richardson, TX 75082-4839 | Gas Operator | Dec 2017 |
| 18147 | McClellan Oil Corporation | Roswell, NM 882020730 | Oil & Gas Operator | May 2015 |
| 18148 | McClelland Creek Properties,Inc. | Pampa, TX 79066 | Oil & Gas Operator | Sep 2026 |
| 18149 | McClelland Oil - | | Oil Operator | Dec 2009 |
| 18150 | McClelland, C.R. Operations, Inc. | Madison, KS 66860 | Oil Operator | Aug 1998 |
| 18151 | McClintock V C | Casper, WY 82601 | Oil & Gas Operator | May 2024 |
| 18152 | McClintock, Robert T | | Oil & Gas Operator | Apr 2026 |
| 18153 | McClinton & 4-M Invest Inc | | Oil & Gas Operator | Aug 1992 |
| 18154 | McClinton & Mosing | | Oil & Gas Operator | Oct 1977 |
| 18155 | McClure Brothers | Denton, TX 76210 | Oil & Gas Operator | Sep 2026 |
| 18156 | McClure Enterprises | Recluse, WY 82725 | Oil & Gas Operator | Dec 2025 |
| 18157 | McClure M C Oil | | Oil Operator | Jul 1984 |
| 18158 | McClure Oil Company, Inc. | Midland, TX 79701 | Oil & Gas Operator | Sep 2026 |
| 18159 | McClure, J.D. Trust | Denton, TX 76209 | Oil & Gas Operator | Sep 2026 |
| 18160 | McCluskey J Sterling | New York, NY 10128-1008 | Gas Operator | Dec 1989 |
| 18161 | McCluskey Willia | | Oil & Gas Operator | Dec 1990 |
| 18162 | McClymond, B. W. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2020 |
| 18163 | McClymond, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2001 |
| 18164 | McClymond, LTD. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2009 |
| 18165 | McColl, Francis E. | Le Roy, NY 14482 | Gas Operator | Dec 2025 |
| 18166 | McComb Oil Inc | Stoneboro, PA 16153-3017 | Oil & Gas Operator | Dec 2025 |
| 18167 | McCombs Energy LLC | Houston, TX 77056 | Oil & Gas Operator | Jan 2006 |
| 18168 | McCombs Energy, LTD. | Houston, TX 77056 | Oil & Gas Operator | Aug 2017 |
| 18169 | McCommons Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Sep 2026 |
| 18170 | McConathy & Associates | | Oil & Gas Operator | Dec 1983 |
| 18171 | McConathy Production Co.,Inc. | | Oil & Gas Operator | Jun 1990 |
| 18172 | McConnell And Scully Inc | | Oil & Gas Operator | Jun 2026 |
| 18173 | McConnell Oil Properties | | Oil Operator | Apr 2026 |
| 18174 | McCool John E | Youngsville, PA 16371 | Oil & Gas Operator | Jun 2026 |
| 18175 | McCord Al Inc | Norman, OK 73072-6720 | Oil & Gas Operator | Feb 2011 |
| 18176 | McCord Exploration Co. | | Oil & Gas Operator | Dec 1990 |
| 18177 | McCord J K | Duncan, OK 73534-0032 | Oil Operator | Mar 2009 |
| 18178 | McCord Oil Co. And T. Walker | | Oil & Gas Operator | Dec 1985 |
| 18179 | McCord-Dale Exploration | | Oil & Gas Operator | May 1986 |
| 18180 | McCord-Goodrich Oil Company | | Oil & Gas Operator | Oct 1991 |
| 18181 | McCorgary Martin E | Arkansas City, KS 67005-5452 | Oil & Gas Operator | Apr 2026 |
| 18182 | McCorgary Operations | | Oil & Gas Operator | Mar 2026 |
| 18183 | McCorkle, Frank R. & Kathleen A. | Sedan, KS 67361 | Oil Operator | Oct 2009 |
| 18184 | McCormack, Lowell Ray | Gainesville, TX 76240 | Oil & Gas Operator | Dec 1993 |
| 18185 | McCormack, Paul H. | Gainesville, TX 76241 | Oil & Gas Operator | Sep 2003 |
| 18186 | McCormick Operating Company | | Oil & Gas Operator | Mar 1984 |
| 18187 | McCormick Operating PRTNSHP | | Oil & Gas Operator | Sep 1985 |
| 18188 | McCormick Operating, L.L.C. | Olney, TX 76374 | Oil Operator | Sep 2015 |
| 18189 | McCormick Production Co, Inc. | Oil City, LA 71061 | Oil & Gas Operator | Sep 2026 |
| 18190 | McCormick, Mark | Java Center, NY 14082 | Gas Operator | Dec 2025 |
| 18191 | McCormick, Ronald R. | Java Center, NY 14082 | Gas Operator | Dec 2025 |
| 18192 | McCormick, Terrance & Anne | Andover, NY 14806 | Oil & Gas Operator | Dec 2025 |
| 18193 | McCormick-Bintliff | | Oil & Gas Operator | Feb 1984 |
| 18194 | McCormick-Bintliff-Pettit | | Oil & Gas Operator | Feb 1984 |
| 18195 | McCormick-Ciroco, Inc. | | Oil & Gas Operator | Jan 1984 |
| 18196 | McCormick-Terra-Bintliff | | Oil & Gas Operator | Dec 1979 |
| 18197 | McCormick-WHB | | Gas Operator | Jan 1984 |
| 18198 | McCort Brian L | Woodsfield, OH 43793 | Oil & Gas Operator | Dec 2025 |
| 18199 | McCown Engineering | Wichita Falls, TX 76310 | Oil & Gas Operator | Sep 2026 |
| 18200 | McCoy Alex W & Associates | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2009 |