| 1101 | Chaparral Operating, Inc. | Shreveport, LA 71166 | Oil & Gas Operator | Jul 2025 |
| 1102 | Chaparral Petroleum Inc. | | Oil Operator | Apr 2025 |
| 1103 | Chaparral Resources Inc | Denver, CO 80293 | Oil & Gas Operator | Jan 1996 |
| 1104 | Chaparral SWD | Eunice, NM 88231 | Oil Operator | Dec 1995 |
| 1105 | Chapco, Inc. | Benavides, TX 78341 | Oil & Gas Operator | Jul 2025 |
| 1106 | Chapel Operating LLC | Lone Grove, OK 73443 | Oil Operator | Apr 2025 |
| 1107 | Chapman Elise P Estate | | Oil & Gas Operator | Mar 2020 |
| 1108 | Chapman Energy O | | Oil & Gas Operator | Jun 1993 |
| 1109 | Chapman Energy Oklahoma, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 1110 | Chapman Explorat | | Oil Operator | Feb 1988 |
| 1111 | Chapman Exploration Inc | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2013 |
| 1112 | Chapman Gary W | MT Perry, OH 43760 | Oil Operator | Dec 2024 |
| 1113 | Chapman Jim | Bristow, OK 74010-1173 | Oil Operator | Apr 2021 |
| 1114 | Chapman Oil Company | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 1115 | Chapman Resources Corporation | Dallas, TX 75231 | Oil & Gas Operator | May 1999 |
| 1116 | Chapman, Ford Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jan 1996 |
| 1117 | Chapparal Operating Co. | Fort Worth, TX 76121 | Oil & Gas Operator | Jul 2025 |
| 1118 | Chapter Petroleum | Borger, TX 79008 | Oil & Gas Operator | Mar 1997 |
| 1119 | Chapter Petroleum, Inc. | Borger, TX 79008 | Oil & Gas Operator | Mar 2001 |
| 1120 | Chardonnay Operating, Inc. | Olney, TX 76374 | Oil & Gas Operator | Dec 1996 |
| 1121 | Charger Oil & Gas, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2014 |
| 1122 | Charger Resources, LLC | Hurst, TX 76054 | Oil & Gas Operator | Aug 2015 |
| 1123 | Charger Shale Oil Operating, LLC | Austin, TX 78704 | Oil & Gas Operator | Sep 2021 |
| 1124 | Charing Cross Properties | | Oil Operator | Aug 1995 |
| 1125 | Charis Energy Inc | Kerrville, TX 78029-0469 | Oil & Gas Operator | Dec 2015 |
| 1126 | Charis Energy LLC | Kerrville, TX 78029 | Oil & Gas Operator | Dec 2005 |
| 1127 | Charis Oil & Gas, LLC | Addison, TX 75001 | Oil & Gas Operator | Jul 2025 |
| 1128 | Charity Gas, Inc. | Salem, WV 26426-5554 | Oil & Gas Operator | Dec 2021 |
| 1129 | Charles A. Bird, Estate | Midland, TX 79702 | Oil & Gas Operator | Feb 2015 |
| 1130 | Charles A. O'Niell, Jr. | | Oil & Gas Operator | Apr 2001 |
| 1131 | Charles B Gillespie Jr | Midland, TX 79701 | Oil & Gas Operator | Jun 2001 |
| 1132 | Charles B. Bice | | Oil & Gas Operator | Jul 1983 |
| 1133 | Charles D. Self Operating, LLC | Jacksboro, TX 76458 | Oil Operator | Jul 2025 |
| 1134 | Charles E. Mayfield | | Oil & Gas Operator | Mar 2001 |
| 1135 | Charles F. Word & Associates | | Oil Operator | Dec 1978 |
| 1136 | Charles G. Dannelly | | Oil & Gas Operator | Mar 1998 |
| 1137 | Charles Holston, Inc. | | Oil Operator | Jan 2025 |
| 1138 | Charles Holston, Inc. Dba GTTS | | Oil Operator | Apr 2009 |
| 1139 | Charles J Kittrell | Hobbs, NM 88241 | Oil & Gas Operator | Oct 1997 |
| 1140 | Charles M. Nolan | | Oil Operator | Aug 1984 |
| 1141 | Charles P Dunning LLC | | Oil & Gas Operator | Apr 2025 |
| 1142 | Charles T Giewont | Edinboro, PA 16412-5415 | Gas Operator | Dec 2009 |
| 1143 | Charles W Kemp | Hobbs, NM 88240 | Oil & Gas Operator | Mar 2000 |
| 1144 | Charles W. Hinesley | | Oil & Gas Operator | Dec 1991 |
| 1145 | Charleston Oil & Gas, Inc. | | Oil & Gas Operator | Mar 1997 |
| 1146 | Charmane Oil Corp | | Oil Operator | Dec 2014 |
| 1147 | Charoil Co., J. Norm And Charlotte Sibley Dba | Roundup, MT 59072 | Oil Operator | Oct 2002 |
| 1148 | Charolais Energy, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2025 |
| 1149 | Charro Operating, L.L.C. | Englewood, CO 80112 | Oil & Gas Operator | Jul 2025 |
| 1150 | Charter Energy, Inc. | Great Bend, KS 67530 | Oil Operator | Mar 2025 |
| 1151 | Charter Oak Production Co LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jul 2025 |
| 1152 | Charter Petroleum Company | Abilene, TX 79605 | Oil & Gas Operator | Jul 2025 |
| 1153 | Charter Producti | | Oil & Gas Operator | Jun 1994 |
| 1154 | Charter Production Company | Wichita, KS 67202 | Oil & Gas Operator | Feb 2018 |
| 1155 | Charter Services LLC | Cushing, OK 74023 | Oil Operator | May 2025 |
| 1156 | Chartex Petroleum Company | Houston, TX 77070 | Oil & Gas Operator | Aug 2000 |
| 1157 | Chase Avenue Corporation, The | Dallas, TX 75219 | Oil & Gas Operator | Jun 2003 |
| 1158 | Chase Energy, Inc. | Austin, TX 78763 | Oil & Gas Operator | Oct 2001 |
| 1159 | Chase Exploratio | | Oil Operator | Sep 1992 |
| 1160 | Chase Oil & Gas Inc C-O Triad | | Oil & Gas Operator | Mar 1993 |
| 1161 | Chase Operating Company | Abilene, TX 79608 | Oil & Gas Operator | Feb 2016 |
| 1162 | Chase Petroleum, Inc. | Glenville, WV 26351-1026 | Oil & Gas Operator | Dec 2021 |
| 1163 | Chase Production Company | Pampa, TX 79066 | Oil & Gas Operator | Jul 2025 |
| 1164 | Chase Well Servi | | Oil Operator | Jun 1989 |
| 1165 | Chase Well Service, Inc. | Great Bend, KS 67530 | Oil Operator | Mar 2004 |
| 1166 | Chase, Glen Drilling | Chanute, KS 66720 | Oil Operator | Jul 1996 |
| 1167 | Chase, Michael | Chanute, KS 66720 | Oil Operator | Mar 1999 |
| 1168 | Chase, Ronald E. II | South Dayton, NY 14138 | Gas Operator | Dec 2024 |
| 1169 | Chasla Energy, LLC | Iowa Park, TX 76367 | Oil Operator | Jul 2025 |
| 1170 | Chass Production Co. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Nov 2020 |
| 1171 | Chastain Diane | Coffeyville, KS 67337-9620 | Oil & Gas Operator | Feb 2015 |
| 1172 | Chastain Farms LLC | Guthrie, KY 42234 | Oil & Gas Operator | Mar 2020 |
| 1173 | Chastain Land & Energy LLC | Wetumka, OK 74883-0067 | Oil & Gas Operator | Sep 2017 |
| 1174 | Chateau Oil And Gas, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Feb 2017 |
| 1175 | Chatham John | Wilson, OK 73463-9575 | Oil Operator | Feb 2014 |
| 1176 | Chatham Verdell | Ratliff City, OK 73081-0061 | Oil Operator | Oct 2009 |
| 1177 | Chatham VIckie R | Wilson, OK 73463 | Oil Operator | May 2025 |
| 1178 | Chatham, Maxine | | Oil Operator | Oct 2016 |
| 1179 | Chautauqua Energy Inc | Westfield, NY 14787 | Oil & Gas Operator | Dec 2020 |
| 1180 | Chautauqua Hills Ministries, Inc. | Gerry, NY 14740 | Gas Operator | Dec 2024 |
| 1181 | Chautauqua Hilltop Organic, LLC | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 1182 | Chautauqua Inns, LTD. | Mayville, NY 14757 | Gas Operator | Dec 2024 |
| 1183 | Chautauqua Oil And Gas LLC | Tulsa, OK 74145 | Oil & Gas Operator | Jan 2025 |
| 1184 | Chaveroo Operating Co Inc | Hobbs, NM 88241 | Oil & Gas Operator | Jun 1997 |
| 1185 | CHB Interests, LLC | Kilgore, TX 75663 | Oil Operator | Oct 2011 |
| 1186 | CHB Investments | Kilgore, TX 75663 | Oil & Gas Operator | Jan 2004 |
| 1187 | CHC Energy, LLC | | Gas Operator | Nov 2012 |
| 1188 | CHC III Paola Energy, LLC | | Oil Operator | Mar 2025 |
| 1189 | Cheatham Well Service, Inc. | Luling, TX 78648 | Oil Operator | Jul 2025 |
| 1190 | Cheatham, Joe R. Oil Co. | Lockhart, TX 78644 | Oil & Gas Operator | Dec 2018 |
| 1191 | Cheatham, W. C. | Olney, TX 76374 | Oil & Gas Operator | Feb 2002 |
| 1192 | Cheektowaga-Maryvale Union Free School District | Cheektowaga, NY 14225 | Gas Operator | Dec 2024 |
| 1193 | Cheetah Investments, Inc. | Winters, TX 79567 | Oil & Gas Operator | Jul 2025 |
| 1194 | Cheetah Oil Inc | Casper, WY 82602 | Oil & Gas Operator | Dec 2007 |
| 1195 | Chek Oil Co. | Midland, TX 79708 | Oil & Gas Operator | May 2019 |
| 1196 | Chek Oil Co., LLC | Midland, TX 79704 | Oil Operator | Jul 2025 |
| 1197 | Chelin LLC | Cut Bank, MT 59427 | Oil & Gas Operator | Apr 2025 |
| 1198 | Chemassist L.L.C. | | Oil & Gas Operator | May 2025 |
| 1199 | Chemco Inc | | Oil & Gas Operator | Sep 2023 |
| 1200 | Chemical Bioteck Solutions LLC | | Oil Operator | Sep 2021 |