| 101 | GHK Company LLC (The) | Oklahoma City, OK 73118-1120 | Oil & Gas Operator | Apr 2018 |
| 102 | Giant Exploration & Prod Co | Farmington, NM 87499 | Oil & Gas Operator | Dec 2009 |
| 103 | Giant Petroleum Corp | Jefferson, OH 44047 | Oil & Gas Operator | Dec 1990 |
| 104 | Gibbs Jr Charles E | Fort Worth, TX 76108-9418 | Oil & Gas Operator | Mar 2015 |
| 105 | Gibraltar Petroleum Corporation | Mabank, TX 75147 | Oil & Gas Operator | Nov 2008 |
| 106 | Gibson C O | Boynton, OK 74422 | Oil Operator | May 2021 |
| 107 | Gibson Donald L | Boynton, OK 74422 | Oil Operator | Jan 2025 |
| 108 | Gibson H F Estate | Dallas, TX 75250 | Oil & Gas Operator | Jul 1995 |
| 109 | Gibson Les | Welty, OK 74833 | Oil & Gas Operator | Feb 2025 |
| 110 | Gilbert Oil Properties | Tulsa, OK 74105-3741 | Oil Operator | Jan 2025 |
| 111 | Gilbert Ralph | Coweta, OK 74429 | Oil Operator | Apr 2007 |
| 112 | Gilby Services LLC | Velma, OK 73491 | Oil & Gas Operator | Feb 2025 |
| 113 | Gilco Oil Inc | Ada, OK 74820 | Oil & Gas Operator | May 2019 |
| 114 | Gill Jet C Dba Jetco Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Dec 2023 |
| 115 | Gill-Mac Inc | Nowata, OK 74048 | Oil & Gas Operator | May 1993 |
| 116 | Gillham Oil & Gas Inc | Shawnee, OK 74801-3547 | Oil Operator | May 1997 |
| 117 | Gillham Paul | Maud, OK 74854 | Oil & Gas Operator | Apr 2023 |
| 118 | Gilliland Gerald D | Dewey, OK 74029-1639 | Oil Operator | Mar 2015 |
| 119 | Gilliland Oil And Gas Inc | Hennessey, OK 73742 | Oil & Gas Operator | Feb 2025 |
| 120 | Gilliland Robert E Estate Of | Dewey, OK 74029-3924 | Oil & Gas Operator | Jul 2001 |
| 121 | GK Production LLC | Perry, OK 73077 | Oil Operator | Jul 2024 |
| 122 | GKM Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Oct 1991 |
| 123 | Gla Inc | Norman, OK 73070 | Oil & Gas Operator | Jan 2025 |
| 124 | Glacier Petroleum Co Okla Inc | Edmond, OK 73013-1977 | Oil & Gas Operator | Feb 2025 |
| 125 | Glacier Petroleum Co., Inc. | Emporia, KS 66801 | Oil & Gas Operator | Dec 2024 |
| 126 | Gladiator Operating LLC | Ardmore, OK 73401 | Oil & Gas Operator | Feb 2025 |
| 127 | Glasgow Jr W R | Hominy, OK 74035 | Oil & Gas Operator | Apr 2014 |
| 128 | GLB Exploration, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2025 |
| 129 | Glenco Oil & Gas Corporation | Wewoka, OK 74884-0727 | Oil & Gas Operator | Sep 2021 |
| 130 | Glendell L Gaskins Production LLC | Slick, OK 74071 | Oil & Gas Operator | Feb 2025 |
| 131 | Glenn Supply Company, Inc. | Tulsa, OK 74101 | Oil & Gas Operator | Jan 2025 |
| 132 | Glenn, Hoyt | | Oil Operator | Nov 2014 |
| 133 | Glenwood Operating LLC | Wichita Falls, TX 76309-4529 | Gas Operator | Jan 2025 |
| 134 | Glimp Oil Company | Drumright, OK 74030-0391 | Oil & Gas Operator | Mar 1998 |
| 135 | Glimp Oil Company LLC | Drumright, OK 74030 | Oil & Gas Operator | Feb 2025 |
| 136 | GLM Energy Inc | Oklahoma City, OK 73142 | Oil & Gas Operator | Jan 2025 |
| 137 | Global Natural Res Corp | Houston, TX 77210 | Oil & Gas Operator | Dec 1994 |
| 138 | Global Oklahoma Production | Tulsa, OK 74146 | Oil & Gas Operator | May 2024 |
| 139 | Gloco LLC (The) | Ada, OK 74820 | Oil & Gas Operator | Jan 2025 |
| 140 | Gloria Corporation The | Ada, OK 74821-0297 | Oil & Gas Operator | Sep 2014 |
| 141 | Glory Oil Company LLC | Dewey, OK 74029-4056 | Oil Operator | Jan 2025 |
| 142 | GMP Minerals LLC | Tulsa, OK 74132-1244 | Oil Operator | Jan 2025 |
| 143 | GMW Petroleum LLC | Skiatook, OK 74070 | Oil & Gas Operator | Jan 2025 |
| 144 | GMX Resources, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2014 |
| 145 | Godfrey Oil Properties | Madill, OK 73446 | Oil & Gas Operator | Jan 2025 |
| 146 | Goetz Elmer | Bartlesville, OK 74005-1068 | Oil & Gas Operator | Jan 2015 |
| 147 | Goff D C Revocable Energy Trust | Fayetteville, AR 72702-1465 | Oil & Gas Operator | Jun 2005 |
| 148 | Goff Oil Company | | Oil & Gas Operator | Mar 1993 |
| 149 | Goggans William C | Pauls Valley, OK 73075-9759 | Oil & Gas Operator | Jun 2004 |
| 150 | Gold Ronald L & Marleen | Shawnee Mission, KS 66202-3302 | Oil Operator | Apr 2014 |
| 151 | Gold-Mont Oil Company Inc | Tulsa, OK 74107 | Oil & Gas Operator | Nov 2015 |
| 152 | Golden Arrow Gas Energy Corp | Norman, OK 73072 | Oil & Gas Operator | Mar 2016 |
| 153 | Golden Circle Production Co | Seminole, OK 74868 | Oil & Gas Operator | May 2002 |
| 154 | Golden Flame Scorpion Energy LLC | Broken Arrow, OK 74011 | Oil Operator | Jan 2025 |
| 155 | Golden Gas Energies Inc | | Oil & Gas Operator | Jan 1999 |
| 156 | Golden Gas Production Company | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2025 |
| 157 | Golden Gas Service Company | Tulsa, OK 74114 | Oil & Gas Operator | Feb 2025 |
| 158 | Golden Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2025 |
| 159 | Golden West Energy LTD | | Oil & Gas Operator | Apr 2020 |
| 160 | Gomaco Inc | Tulsa, OK 74103-5061 | Oil & Gas Operator | Apr 2015 |
| 161 | Gomaco Operating Company | Tulsa, OK 74115 | Oil & Gas Operator | Feb 2025 |
| 162 | Gonzalez Randy Oil | Gotebo, OK 73041 | Oil Operator | Aug 2017 |
| 163 | Good Vaughn | Enid, OK 73702 | Oil & Gas Operator | Jul 2008 |
| 164 | Good Vaughn Oil Company LLC | Enid, OK 73702-3744 | Oil & Gas Operator | Jun 2019 |
| 165 | Goodnight & Laird | St Louis, OK 74866 | Oil & Gas Operator | Jan 2025 |
| 166 | Goodnight C A Dba C & M Oil Company | Tecumseh, OK 74873-4825 | Oil Operator | Jan 2013 |
| 167 | Goodnight Julie | Vilonia, AR 72173 | Oil Operator | Sep 2023 |
| 168 | Goodnight Lindell D | St Louis, OK 74866 | Oil Operator | Feb 1992 |
| 169 | Goodrich Larkin M | Konawa, OK 74849-9766 | Oil Operator | Jan 2013 |
| 170 | Goodspeed Brenda K | Garber, OK 73738-5401 | Oil & Gas Operator | Nov 1998 |
| 171 | Gopher Oil Company | | Oil & Gas Operator | Jan 2025 |
| 172 | Gordon Brothers Oil Company | Stroud, OK 74079 | Oil & Gas Operator | Jul 2017 |
| 173 | Gordon Robert Oil Company | Stroud, OK 74070-0366 | Oil & Gas Operator | Jul 2001 |
| 174 | Gore Gail B | Camargo, OK 73835-9737 | Oil & Gas Operator | Aug 2014 |
| 175 | Gore Operating LLC | Clinton, OK 73601 | Oil & Gas Operator | Dec 2024 |
| 176 | Gore Sidney | Tulsa, OK 74101 | Oil & Gas Operator | Dec 2016 |
| 177 | Gosnell Tony Operating LLC | Lindsay, OK 73052 | Oil & Gas Operator | Feb 2025 |
| 178 | Gothic Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2015 |
| 179 | Gothic Production Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2016 |
| 180 | Gouin Frank L | Oklahoma City, OK 73139-2513 | Oil Operator | Jan 2014 |
| 181 | Gouker & Harris | Meeker, OK 74855-0685 | Oil Operator | Jan 2013 |
| 182 | GPM Gas Corporation | Oklahoma City, OK 73102-5627 | Oil & Gas Operator | Jun 2000 |
| 183 | Grace 7 Operating LLC | Argyle, TX 76226 | Oil Operator | Apr 2022 |
| 184 | Grace Energy Management Inc | Cement, OK 73017 | Oil Operator | Feb 2025 |
| 185 | Grace Oil Company Inc | Monahans, TX 79756 | Oil & Gas Operator | Oct 2011 |
| 186 | Grace Petroleum LP | Midland, TX 79708 | Oil & Gas Operator | May 2016 |
| 187 | Graham Oil And Gas, LTD. | Covington, LA 70434-3134 | Oil & Gas Operator | Aug 2013 |
| 188 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 189 | Graham, Marion T | | Oil Operator | Jan 2025 |
| 190 | Graham-Michaelis Corporation | Wichita, KS 67201 | Oil & Gas Operator | Dec 2010 |
| 191 | Gram Oil Co | Bartlesville, OK 74003 | Oil Operator | Dec 2011 |
| 192 | Granada Exploration LLC | Edmond, OK 73034-4172 | Oil & Gas Operator | Jan 2025 |
| 193 | Grand Energy, Inc. | Dallas, TX 75248 | Oil & Gas Operator | Oct 2002 |
| 194 | Grand Lake Resources | Hennessey, OK 73742 | Oil & Gas Operator | Jan 2025 |
| 195 | Grand Operating, Inc. | Addison, TX 75001 | Oil & Gas Operator | Dec 2020 |
| 196 | Grand Production Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Aug 2000 |
| 197 | Grand Resources Inc | Tulsa, OK 74137 | Oil & Gas Operator | Apr 2025 |
| 198 | Granite Oil & Gas Inc | Phoenix, AZ 85045 | Oil Operator | Mar 1996 |
| 199 | Grant Petroleum Corporation | Horseshoe Bay, TX 78657-8926 | Oil & Gas Operator | Dec 2014 |
| 200 | Grasen Energy, Inc. | Amarillo, TX 79159 | Oil & Gas Operator | Aug 2013 |