| 1 | G & B Tank Truck Service | Binger, OK 73009 | Oil & Gas Operator | Jan 2008 |
| 2 | Galaxy Corporation (The) | Sapulpa, OK 74067-2003 | Oil & Gas Operator | Feb 2024 |
| 3 | Galt Investment Company LLC | | Oil Operator | Jan 2024 |
| 4 | General Atlantic Resources Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 5 | Geo Engineering Inc | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 6 | Geological & Engineering Consultants | | Oil & Gas Operator | Jan 2024 |
| 7 | Gilliland Gerald D | Dewey, OK 74029-1639 | Oil Operator | Mar 2015 |
| 8 | Glasgow Jr W R | Hominy, OK 74035 | Oil & Gas Operator | Apr 2014 |
| 9 | Glenn Supply Company, Inc. | Tulsa, OK 74101 | Oil & Gas Operator | Jan 2024 |
| 10 | Glenn, Hoyt | | Oil Operator | Nov 2014 |
| 11 | Global Oklahoma Production | Tulsa, OK 74146 | Oil & Gas Operator | May 2023 |
| 12 | Golden Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2024 |
| 13 | Golden West Energy LTD | | Oil & Gas Operator | Apr 2020 |
| 14 | Gopher Oil Company | | Oil & Gas Operator | Dec 2023 |
| 15 | Gore Sidney | Tulsa, OK 74101 | Oil & Gas Operator | Dec 2016 |
| 16 | Grace Oil Company Inc | Monahans, TX 79756 | Oil & Gas Operator | Oct 2011 |
| 17 | Graham, Marion T | | Oil Operator | Jan 2024 |
| 18 | Gram Oil Co | Bartlesville, OK 74003 | Oil Operator | Dec 2011 |
| 19 | Grand Production Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Aug 2000 |
| 20 | Grand Resources Inc | Tulsa, OK 74137 | Oil & Gas Operator | May 2024 |
| 21 | Graves J M | Tulsa, OK 74105 | Oil & Gas Operator | Sep 2007 |
| 22 | Graves John G Oil Prop Inc | Tulsa, OK 74116-5666 | Oil & Gas Operator | Feb 2001 |
| 23 | Gray Fox Operating Company | Tulsa, OK 74119 | Oil Operator | May 1993 |
| 24 | Grayhorse Operating Inc | Tulsa, OK 74103-4439 | Oil & Gas Operator | Jan 2024 |
| 25 | Great Northern Gas Company | Denver, CO 80293-0602 | Oil & Gas Operator | Jul 2017 |
| 26 | Great Plains Petroleum, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Jan 2024 |
| 27 | Great Southwestern Expl Inc | Tulsa, OK 74105 | Oil & Gas Operator | Jan 2024 |
| 28 | Green Operating Company, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Feb 2023 |
| 29 | Green Valley Disposal Serv LLC | Waynoka, OK 73860-0194 | Oil Operator | Feb 2024 |
| 30 | Greene David L II LLC | | Oil Operator | Jan 2024 |
| 31 | Greenwood Energy Inc | Oklahoma City, OK 73116-9083 | Oil & Gas Operator | Mar 2015 |
| 32 | Greenwood Oil Company | Skiatook, OK 74070 | Oil & Gas Operator | Aug 2013 |
| 33 | Greer Tom R | Ponca City, OK 74602-2444 | Oil & Gas Operator | May 2013 |
| 34 | Gross, Charles E. | Dallas, TX 75220 | Oil & Gas Operator | Feb 2012 |
| 35 | Ground Development Company Inc | Dallas, TX 75229-0377 | Oil & Gas Operator | Jan 2013 |