| 101 | Glori Holdings, Inc. | Houston, TX 77042 | Oil Operator | Mar 2004 |
| 102 | GMX Resources, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2014 |
| 103 | Goben'S United Petroleum, Inc. | Wichita, KS 67218 | Oil Operator | Nov 2001 |
| 104 | Goby Energy, Inc. | Glenwood Springs, CO 81601 | Oil Operator | Dec 2019 |
| 105 | Gold Energy Corp | Overland Park, KS 66225-6046 | Oil & Gas Operator | Dec 2021 |
| 106 | Goode Emmit | | Oil Operator | Nov 1992 |
| 107 | Goodin Raymond M | | Oil Operator | Mar 1988 |
| 108 | Goodin, Raymond M. - Trust | Augusta, KS 67010 | Oil & Gas Operator | Jun 2000 |
| 109 | Gore Oil Company | Wichita, KS 67202 | Oil & Gas Operator | Mar 2025 |
| 110 | Gothic Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2015 |
| 111 | Gould Oil Inc. | Wichita, KS 67278 | Oil & Gas Operator | Oct 2019 |
| 112 | Gould Oil Incorp | | Oil & Gas Operator | May 1996 |
| 113 | Gowdy Chemical Co. | | Oil Operator | Oct 2001 |
| 114 | GPM Gas Corp | Oklahoma City, OK 73102-5627 | Oil & Gas Operator | Nov 1998 |
| 115 | GPS Oil Lease Operations | Inman, KS 67546 | Oil Operator | Jun 2001 |
| 116 | Gra Ex, LLC | Kingman, KS 67068 | Oil & Gas Operator | Oct 2023 |
| 117 | Graber Oil | Hutchinson, KS 67502 | Oil & Gas Operator | Oct 2018 |
| 118 | Grace Petroleum Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Oct 1997 |
| 119 | Grady Bolding Corporation | Ellinwood, KS 67526 | Oil & Gas Operator | Mar 2025 |
| 120 | Graham Royalty L | | Gas Operator | Mar 1991 |
| 121 | Graham, Lowell H. | Le Roy, KS 66857 | Oil Operator | Mar 2025 |
| 122 | Graham-Michaelis | | Oil & Gas Operator | Nov 1996 |
| 123 | Graham-Michaelis Corporation | Wichita, KS 67201 | Oil & Gas Operator | Dec 2010 |
| 124 | Grand Mesa Operating Co | Wichita, KS 67206 | Oil & Gas Operator | Jun 2025 |
| 125 | Grant Stan & Kru | | Oil Operator | Apr 1985 |
| 126 | Grassland Petrol | | Oil Operator | Feb 1993 |
| 127 | Graves Drilling | | Oil & Gas Operator | Sep 1995 |
| 128 | Graves Drilling Co., Inc. | Wichita, KS 67208 | Oil & Gas Operator | Mar 2025 |
| 129 | Graybol-Patton C | | Oil & Gas Operator | Oct 1991 |
| 130 | GRB Resources | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2004 |
| 131 | Great Bend Oil P | | Oil Operator | Jun 1991 |
| 132 | Great Eastern En | | Oil & Gas Operator | Nov 1995 |
| 133 | Great Eastern Energy & Dev. Corp. | Midland, TX 79701 | Oil & Gas Operator | Jul 2008 |
| 134 | Great Plains Energy, Inc. | Lincoln, NE 68516 | Oil & Gas Operator | Apr 2025 |
| 135 | Great Plains Pet | | Oil & Gas Operator | Mar 1995 |
| 136 | Great Plains Petroleum, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Mar 2025 |
| 137 | Green Enterprises | | Oil Operator | Mar 2025 |
| 138 | Green J R & Jerr | | Oil Operator | Dec 1991 |
| 139 | Green Oilfield Production L.L.C. | Jennings, KS 67643 | Oil Operator | Mar 2025 |
| 140 | Green Oper Compa | | Gas Operator | Jan 1970 |
| 141 | Green Operating Company, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Mar 2025 |
| 142 | Green, Bobbie | Chautauqua, KS 67334 | Oil Operator | Mar 2025 |
| 143 | Green, J. R. | Hays, KS 67601 | Oil Operator | Mar 2005 |
| 144 | Green, Robert W | Ottawa, KS 66067 | Oil Operator | Nov 1987 |
| 145 | Greene Enterprises, Inc. | Gillette, WY 82717 | Oil Operator | Dec 2009 |
| 146 | Greenhead Energy Operating LLC | Oklahoma City, OK 73131 | Oil & Gas Operator | May 2025 |
| 147 | Greensburg Oilfield LLC | Zenda, KS 67159 | Oil Operator | Nov 2013 |
| 148 | Greenwood Resources L.L.C. | Pratt, KS 67124 | Oil Operator | Mar 2025 |
| 149 | Greer Oil Compan | | Oil & Gas Operator | Jun 1988 |
| 150 | Greer Tom & Welm | | Oil Operator | Mar 1995 |
| 151 | Greer, Joseph V. | Yates Center, KS 66783 | Oil & Gas Operator | Oct 2005 |
| 152 | Greer, Tom | Ponca City, OK 74602 | Oil Operator | Aug 2016 |
| 153 | Gressel Production, LLC | South Haven, KS 67140 | Oil & Gas Operator | Mar 2025 |
| 154 | Gressel, Dewey H. | | Oil Operator | Dec 2009 |
| 155 | Grey Oil Company | Pratt, KS 67124 | Oil & Gas Operator | Sep 2007 |
| 156 | Grey, Glenn E. | Haviland, KS 67059 | Oil Operator | Mar 2002 |
| 157 | Grey, Huey P. | Greensburg, KS 67054 | Oil Operator | Dec 1984 |
| 158 | Grey, James H. | Greensburg, KS 67054 | Gas Operator | Nov 1988 |
| 159 | Greystone, Inc. | Hays, KS 67601 | Oil Operator | Jun 2019 |
| 160 | Griffin, Charles | Stafford, KS 67578 | Oil Operator | Sep 1997 |
| 161 | Griffin, Charles N. | Pratt, KS 67124 | Oil & Gas Operator | Mar 2025 |
| 162 | Griggs Oil Incor | | Oil & Gas Operator | May 1994 |
| 163 | Gross William R | | Oil Operator | Feb 1986 |
| 164 | Groves, Frank | Arkansas City, KS 67005 | Oil & Gas Operator | Mar 1995 |
| 165 | Gruenerwald WM & | | Oil & Gas Operator | Apr 1994 |
| 166 | Grunder Oil, LLC | St John, KS 67576 | Oil Operator | Mar 2025 |
| 167 | Gruss Petroleum | | Oil Operator | Jan 1986 |
| 168 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 169 | Guardian Energy Consultants, Inc. | Tulsa, OK 74120 | Gas Operator | Sep 2009 |
| 170 | Guinn Investments, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2018 |
| 171 | Guinotte Company LLC | Ottawa, KS 66067 | Oil Operator | Dec 2009 |
| 172 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Jun 2025 |
| 173 | Gulick Drilling , Inc. | Eureka, KS 67045 | Oil Operator | Mar 2025 |
| 174 | Gumfory, Shawn | Iola, KS 66749 | Oil Operator | Jul 1998 |
| 175 | Gunner Oil Company | Wichita, KS 67205 | Oil & Gas Operator | Mar 2025 |
| 176 | Gus Jones Cable Tool Service, LLC | Elk City, KS 67344 | Oil Operator | Nov 2024 |
| 177 | Gusher Oil | | Oil Operator | Jul 2004 |
| 178 | Gustison Steven | | Oil Operator | Feb 1985 |
| 179 | Guthrie Oil Co | | Oil Operator | Nov 1994 |
| 180 | Guthrie Oil Comp | | Oil & Gas Operator | Dec 1994 |