| 1 | G & C Petroleum Inc | Yale, OK 74085-2502 | Oil & Gas Operator | May 2026 |
| 2 | G & D Oil | Walters, OK 73572-3870 | Oil Operator | Nov 2014 |
| 3 | G & G Resources Company Inc | Broken Arrow, OK 74013 | Oil & Gas Operator | May 2013 |
| 4 | G & G Saltwater Disposal Systems Inc | Perry, OK 73077-0854 | Oil Operator | Mar 2005 |
| 5 | G & G Services | Okmulgee, OK 74447 | Oil & Gas Operator | Feb 1993 |
| 6 | G & N Oil & Gas LLC | Asher, OK 74826 | Oil & Gas Operator | Mar 2025 |
| 7 | G & R Oil Co | St. John, KS 67576 | Oil Operator | Aug 2008 |
| 8 | G & S Energy, Inc. | Bangs, TX 76823 | Oil & Gas Operator | Apr 2024 |
| 9 | G & S Production Company | Velma, OK 73491-0036 | Oil & Gas Operator | Oct 2021 |
| 10 | G & S Production Inc. | Chickasha, OK 73018 | Oil Operator | May 2026 |
| 11 | G A W Oil Company LLC | Enid, OK 73702-3926 | Oil & Gas Operator | May 2026 |
| 12 | G B & D Oil & Gas | Kilgore, TX 75663-2881 | Oil & Gas Operator | Mar 2015 |
| 13 | G E Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2020 |
| 14 | G M C Oil & Gas LTD | Oklahoma City, OK 73102-8804 | Oil & Gas Operator | Sep 1999 |
| 15 | G M G Oil & Gas Corp. | Morris, OK 74445 | Oil & Gas Operator | May 2026 |
| 16 | G M Oil Properties Inc | Eufaula, OK 74432-0841 | Oil & Gas Operator | Feb 2012 |
| 17 | G R B Resources Inc | Tulsa, OK 74136-5108 | Oil & Gas Operator | Aug 2013 |
| 18 | G-Green F4P LLC | Howe, OK 74940 | Gas Operator | Apr 2026 |
| 19 | G2GH Operating LLC | Edmond, OK 73003-3207 | Oil Operator | May 2026 |
| 20 | Gadsco Inc | Ardmore, OK 73402 | Gas Operator | Jun 2013 |
| 21 | Gaedeke Oil & Gas Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Sep 2023 |
| 22 | Gai-Jin Trading Company LLC | Oklahoma City, OK 73107 | Oil & Gas Operator | Sep 2024 |
| 23 | Gala Resources, LTD. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 24 | Galaxy Energy Inc. | Stigler, OK 74462 | Gas Operator | Dec 2025 |
| 25 | Galaxy Oil Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2015 |
| 26 | Galmor Steve Dba MSG Oil & Gas | Elk City, OK 73644 | Oil & Gas Operator | Aug 2015 |
| 27 | Galt Investment Company LLC | Tulsa, OK 74120-7412 | Oil Operator | Jun 2024 |
| 28 | Gamma Resources Inc | Oklahoma City, OK 73120 | Oil & Gas Operator | Jan 2017 |
| 29 | Ganer Mark Oil & Gas | Owasso, OK 74055 | Oil & Gas Operator | Aug 2005 |
| 30 | Ganer Oil Company | Blackwell, OK 74631-4221 | Oil & Gas Operator | Jan 2022 |
| 31 | Garms Oil Inc | Kingfisher, OK 73750-4207 | Oil & Gas Operator | Apr 2026 |
| 32 | Garnet Exploration LLC | Spiro, OK 74959-4839 | Gas Operator | Apr 2026 |
| 33 | Garr-Woolley Oil Company | Oklahoma City, OK 73142-6019 | Oil & Gas Operator | Nov 1995 |
| 34 | Garrett, Dwayne M | | Oil & Gas Operator | Dec 2000 |
| 35 | Garrison Bros Pipe & Used Equip Inc | Hinton, OK 73047 | Oil & Gas Operator | Aug 2013 |
| 36 | Garry Davis Oil LLC | Tonkawa, OK 74653-0040 | Oil & Gas Operator | Apr 2026 |
| 37 | Garvey Oil And Gas LLC | Kellyville, OK 74039-4428 | Oil & Gas Operator | Mar 2015 |
| 38 | Gary Hurd Oil Company, Inc. | | Oil & Gas Operator | Apr 2026 |
| 39 | Gary Jr Samuel & Assoc Inc | Denver, CO 80202-4803 | Oil & Gas Operator | Jul 1999 |
| 40 | Gary L. Deaton Corporation | Oklahoma City, OK 73105-3023 | Oil & Gas Operator | Mar 2015 |
| 41 | Gary M Lake & Company | Edmond, OK 73012-8208 | Oil & Gas Operator | Aug 2021 |
| 42 | Gas Development Corporation | Broken Arrow, OK 74012 | Oil & Gas Operator | Mar 2015 |
| 43 | Gas Enhancement Inc | Oklahoma City, OK 73120 | Oil & Gas Operator | Apr 2014 |
| 44 | Gasanadarko LTD | Oklahoma City, OK 73116 | Gas Operator | May 1994 |
| 45 | Gashoma Inc | Dewey, OK 74029 | Oil & Gas Operator | Oct 2019 |
| 46 | Gaskins Glendell L | Slick, OK 74071 | Oil & Gas Operator | May 2026 |
| 47 | Gaskins Ronnie Oil Production | Lawton, OK 73501-4529 | Oil Operator | Jun 2014 |
| 48 | Gaskins William | Lincoln, NE 68516 | Oil Operator | Dec 1998 |
| 49 | Gastar Exploration LLC | Tulsa, OK 74136-1921 | Oil & Gas Operator | Apr 2026 |
| 50 | Gate Oil And Gas LTD | Duncan, OK 73533 | Oil Operator | Jan 2004 |
| 51 | Gateway Resources USA Inc | Bartlesville, OK 74006 | Oil & Gas Operator | Mar 2026 |
| 52 | Gatewood Edward J "Bob" | Holdenville, OK 74848 | Oil & Gas Operator | May 2013 |
| 53 | Gay Drilling Contractors | Duncan, OK 73534-0457 | Oil & Gas Operator | Dec 2014 |
| 54 | Gaylan Hunt Enterprises Inc | Duncan, OK 73533 | Oil & Gas Operator | Apr 2026 |
| 55 | Gazalski Richard S Dba Ski Energy | Henryetta, OK 74437-1208 | Oil & Gas Operator | Dec 2020 |
| 56 | Gda Investments Inc | Oklahoma City, OK 73123-0403 | Oil & Gas Operator | Apr 2026 |
| 57 | Ge Oil & Gas LLC | Hastings, OK 73548-4904 | Oil & Gas Operator | Apr 2026 |
| 58 | Gear Petroleum Co Inc | Wichita, KS 67202 | Oil & Gas Operator | Dec 2009 |
| 59 | Geiger Albert J Revocable Trust | Tulsa, OK 74107 | Oil Operator | Sep 1994 |
| 60 | Gel Oil & Gas Inc | Wetumka, OK 74883-6238 | Oil & Gas Operator | Jul 2016 |
| 61 | Gem Oil Company | Albany, TX 76430 | Oil & Gas Operator | Sep 2002 |
| 62 | Gemini Exploration Inc | Oklahoma City, OK 73159 | Oil & Gas Operator | May 2013 |
| 63 | Gemini Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2026 |
| 64 | Gene Cook Inc | Woodward, OK 73801 | Oil & Gas Operator | May 2026 |
| 65 | General Atlantic Resources, Inc. | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 66 | General Exploration Inc | | Oil & Gas Operator | Aug 2001 |
| 67 | General Minerals Corp | Oklahoma City, OK 73105 | Oil & Gas Operator | Dec 2015 |
| 68 | General Oil Company, Inc. | Wichita, KS 67213 | Oil & Gas Operator | Jul 2026 |
| 69 | General Petroleum Corp | Sand Springs, OK 74063-6646 | Oil & Gas Operator | Jul 2015 |
| 70 | General Producing Co | Houston, TX 77002 | Oil & Gas Operator | Jun 1993 |
| 71 | General Trading Co Inc | Carrollton, TX 75011-2309 | Oil Operator | Jul 2017 |
| 72 | Genesis Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 1995 |
| 73 | Genesis Inc | Seminole, OK 74818-1647 | Oil & Gas Operator | Sep 2014 |
| 74 | Genesis Petroleum Corporation | Fort Worth, TX 76116-7151 | Oil & Gas Operator | Mar 2011 |
| 75 | Genesis Petroleum LLC | Andrews, TX 79714 | Oil & Gas Operator | Apr 2026 |
| 76 | Genie Oil & Gas Corporation | Broken Arrow, OK 74013-3783 | Oil & Gas Operator | Apr 2026 |
| 77 | Geno Oil & Gas Corp | | Oil & Gas Operator | Sep 2009 |
| 78 | Genzer Jim W | Sapulpa, OK 74067-1252 | Oil & Gas Operator | May 2013 |
| 79 | Geo American Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2026 |
| 80 | Geo Engineering, Inc. | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 81 | Geo Exploration LLC | Oklahoma City, OK 73120-7116 | Oil & Gas Operator | Jun 2024 |
| 82 | Geo-Earth Exploration Co Inc | Stillwater, OK 74076 | Oil & Gas Operator | May 1994 |
| 83 | Geo720 LLC | Shattuck, OK 73858 | Oil & Gas Operator | Mar 2016 |
| 84 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 85 | Geodyne Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2010 |
| 86 | Geoex Resources Inc | | Oil & Gas Operator | Jan 1997 |
| 87 | Geological & Engineering Consultants | | Oil & Gas Operator | Apr 2026 |
| 88 | Geoquest Energy Inc | Enid, OK 73706-0216 | Oil & Gas Operator | Nov 2015 |
| 89 | George H Russell Oil & Gas Investments Inc | Mustang, OK 73064 | Oil & Gas Operator | Oct 2023 |
| 90 | George Taylor & Sons Oil LLC | Ringling, OK 73456 | Oil Operator | Apr 2026 |
| 91 | German Petroleum Company | Tulsa, OK 74169-1953 | Oil & Gas Operator | Oct 2009 |
| 92 | Germany Operating Company | Houston, TX 77090 | Oil & Gas Operator | Sep 2011 |
| 93 | Gerwan Oil Company | Oklahoma City, OK 73159 | Oil Operator | Mar 2011 |
| 94 | Get Pumping LLC | Drummond, OK 73735 | Oil & Gas Operator | May 2026 |
| 95 | Getty Og Operating LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Apr 2026 |
| 96 | Getty Oil Company | Hays, KS 67601 | Oil & Gas Operator | Mar 2015 |
| 97 | Getty Reserve Oil Inc | White Plains, NY 10650 | Oil & Gas Operator | Mar 2005 |
| 98 | Geyer Brothers Equipment Company | Noble, OK 73068-8540 | Oil & Gas Operator | Mar 2011 |
| 99 | GHK Company LLC (The) | Oklahoma City, OK 73118-1120 | Oil & Gas Operator | Apr 2018 |
| 100 | Giant Exploration & Prod Co | Farmington, NM 87499 | Oil & Gas Operator | Dec 2009 |