| 2401 | Gouker & Harris | Meeker, OK 74855-0685 | Oil Operator | Jan 2013 |
| 2402 | GPM Gas Corporation | Oklahoma City, OK 73102-5627 | Oil & Gas Operator | Nov 1998 |
| 2403 | Grace 7 Operating LLC | Argyle, TX 76226 | Oil Operator | Apr 2022 |
| 2404 | Grace Energy Management Inc | Cement, OK 73017 | Oil Operator | Oct 2025 |
| 2405 | Grace Oil Company | Monahans, TX 79756 | Oil & Gas Operator | Oct 2011 |
| 2406 | Grace Petroleum, L.P. | Midland, TX 79708 | Oil & Gas Operator | May 2016 |
| 2407 | Graham Oil And Gas LTD | Covington, LA 70434-3134 | Oil & Gas Operator | Aug 2013 |
| 2408 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 2409 | Graham, Marion T | | Oil Operator | Oct 2025 |
| 2410 | Graham-Michaelis Corporation | Wichita, KS 67201 | Oil & Gas Operator | Dec 2010 |
| 2411 | Gram Oil Co | Bartlesville, OK 74003 | Oil Operator | Dec 2011 |
| 2412 | Granada Exploration LLC | Edmond, OK 73034-4172 | Oil & Gas Operator | Oct 2025 |
| 2413 | Grand Energy, Inc. | Dallas, TX 75248 | Oil & Gas Operator | Oct 2002 |
| 2414 | Grand Lake Resources | Hennessey, OK 73742 | Oil & Gas Operator | Nov 2025 |
| 2415 | Grand Operating, Inc. | Addison, TX 75001 | Oil & Gas Operator | Nov 2025 |
| 2416 | Grand Production Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Aug 2000 |
| 2417 | Grand Resources Inc | Tulsa, OK 74137 | Oil & Gas Operator | Dec 2025 |
| 2418 | Granite Oil & Gas Inc | Phoenix, AZ 85045 | Oil Operator | Mar 1996 |
| 2419 | Grant Petroleum Corporation | Horseshoe Bay, TX 78657-8926 | Oil & Gas Operator | Dec 2014 |
| 2420 | Grasen Energy, Inc. | Amarillo, TX 79159 | Oil & Gas Operator | Aug 2013 |
| 2421 | Graves J M | Tulsa, OK 74105 | Oil & Gas Operator | Sep 2007 |
| 2422 | Graves John G Oil Prop Inc | Tulsa, OK 74116-5666 | Oil & Gas Operator | Feb 2001 |
| 2423 | Graves Oil Company | Ardmore, OK 73401 | Oil Operator | Apr 2014 |
| 2424 | Gravley Bill | Duncan, OK 73533 | Oil Operator | Nov 1998 |
| 2425 | Gray Bar Resources Inc | Pawhuska, OK 74056-0476 | Oil & Gas Operator | Jun 2022 |
| 2426 | Gray Fox Operating Company | Tulsa, OK 74119 | Oil Operator | May 1993 |
| 2427 | Gray Lloyd Energy Inc | Oklahoma City, OK 73120-8112 | Oil & Gas Operator | Nov 2005 |
| 2428 | Gray Oil & Gas Inc. | Abilene, TX 79606 | Oil & Gas Operator | Oct 2013 |
| 2429 | Gray Operating Company, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Apr 2018 |
| 2430 | Gray Pipeline Inc | Broomfield, CO 80023-8304 | Oil & Gas Operator | Jul 2018 |
| 2431 | Gray, Jimmy W | | Oil & Gas Operator | Aug 1998 |
| 2432 | Grayhorse Operating Inc | Tulsa, OK 74103-4438 | Oil & Gas Operator | Oct 2025 |
| 2433 | Grayling Oil Inc | | Oil & Gas Operator | Feb 1995 |
| 2434 | Grayrock Energy, LLC | Fort Worth, TX 76114 | Oil & Gas Operator | Nov 2025 |
| 2435 | Grayson Operating LLC | Ada, OK 74820 | Oil & Gas Operator | Oct 2025 |
| 2436 | GRB Properties, Inc. | Midland, TX 79705 | Oil & Gas Operator | Mar 2003 |
| 2437 | Great Basins Petroleum Co | | Gas Operator | Mar 2015 |
| 2438 | Great Horned Owls, LLC | Katy, TX 77494 | Oil & Gas Operator | Oct 2025 |
| 2439 | Great Northern Gas Company | Denver, CO 80293-0602 | Oil & Gas Operator | Jun 2016 |
| 2440 | Great Plains Oil & Gas | Ada, OK 74820-7209 | Oil & Gas Operator | May 2013 |
| 2441 | Great Plains Operating Inc | Bristow, OK 74010 | Oil & Gas Operator | Dec 1998 |
| 2442 | Great Plains Petroleum, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Sep 2025 |
| 2443 | Great Plains Pipeline Company | Tulsa, OK 74135-6405 | Oil & Gas Operator | Jul 2014 |
| 2444 | Great Southwestern Expl Inc | Tulsa, OK 74105 | Oil & Gas Operator | Oct 2025 |
| 2445 | Great Western Drilling Company | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 2446 | Great Western Equipment Co | Mustang, OK 73064 | Oil & Gas Operator | Oct 2025 |
| 2447 | Great Western Land Co Inc | Tulsa, OK 74136-1517 | Oil & Gas Operator | Jun 2000 |
| 2448 | Great Yellowstone Corporation | | Oil & Gas Operator | Apr 1993 |
| 2449 | Greehey & Company, LTD. | San Antonio, TX 78216 | Oil & Gas Operator | May 2020 |
| 2450 | Green Energy Company | Okmulgee, OK 74447 | Oil & Gas Operator | May 2013 |
| 2451 | Green Operating Company Inc | Tulsa, OK 74135 | Oil & Gas Operator | Sep 2025 |
| 2452 | Green River Exploration Co | Tulsa, OK 74121-1468 | Oil & Gas Operator | Sep 2011 |
| 2453 | Green River Operating Co Inc | Noble, OK 73068-5521 | Oil & Gas Operator | Feb 2018 |
| 2454 | Green River Resources Inc. | Keystone, CO 80435 | Oil & Gas Operator | Dec 2025 |
| 2455 | Green Valley Disposal Serv LLC | Alva, OK 73717 | Oil Operator | Nov 2025 |
| 2456 | Green William G | Jenks, OK 74037-3233 | Oil & Gas Operator | Apr 2020 |
| 2457 | Green'S Drillng & Mud Ser Inc | Konawa, OK 74849 | Oil Operator | Jan 2013 |
| 2458 | Greenfields Operating LLC | Tulsa, OK 74114 | Oil Operator | Oct 2025 |
| 2459 | Greenhead Energy Operating LLC | Oklahoma City, OK 73131 | Oil & Gas Operator | Nov 2025 |
| 2460 | Greenlee Oil And Gas LLC | Norman, OK 73072 | Oil & Gas Operator | Sep 2025 |
| 2461 | Greenwood Energy Inc | Oklahoma City, OK 73116-9083 | Oil & Gas Operator | Mar 2015 |
| 2462 | Greenwood Janet | Mannford, OK 74044 | Oil Operator | Apr 2014 |
| 2463 | Greenwood Oil Company | Skiatook, OK 74070 | Oil & Gas Operator | Aug 2013 |
| 2464 | Greer & Beckham Gas Co Inc | Shamrock, TX 79079-0606 | Oil & Gas Operator | Aug 2013 |
| 2465 | Greer Family Trust | Ponca City, OK 74601-8126 | Oil Operator | Aug 2018 |
| 2466 | Greer Tom R | Ponca City, OK 74602-2444 | Oil & Gas Operator | May 2013 |
| 2467 | Greg Davis Investments Inc | Edmond, OK 73034-6621 | Oil Operator | May 2020 |
| 2468 | Greg Hall Oil & Gas LLC | Norman, OK 73072 | Oil & Gas Operator | Oct 2025 |
| 2469 | Greystone Exploration Co | Oklahoma City, OK 73177 | Oil & Gas Operator | Apr 1996 |
| 2470 | Gribble Jr R W | Dallas, TX 75235 | Oil & Gas Operator | Apr 2014 |
| 2471 | Gribble Oil Corporation | Dallas, TX 75235 | Oil Operator | Aug 1994 |
| 2472 | Griebel-Valliquette | Stroud, OK 74079-0231 | Oil & Gas Operator | Aug 2016 |
| 2473 | Griffin Resources LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2025 |
| 2474 | Griffin Well Service Inc | Konawa, OK 74849-9710 | Oil & Gas Operator | Oct 2025 |
| 2475 | Griffith Petroleum Services Inc | Kingston, OK 73439 | Oil & Gas Operator | Oct 2025 |
| 2476 | Griggs Josh | Dewey, OK 74029 | Oil Operator | Oct 2025 |
| 2477 | Griggs Oil LLC | Dewey, OK 74029-0477 | Oil & Gas Operator | Oct 2025 |
| 2478 | Griswold Energy LLC | Oologah, OK 74053-6228 | Oil Operator | Oct 2025 |
| 2479 | Grizzly Energy Resources, L.L.C. | Midland, TX 79705 | Oil & Gas Operator | Oct 2025 |
| 2480 | Grizzly Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Nov 2025 |
| 2481 | Grooms T D | Stillwater, OK 74075-3600 | Oil & Gas Operator | Oct 2001 |
| 2482 | Gross Jack L Production | Borger, TX 79008-0065 | Gas Operator | Mar 2015 |
| 2483 | Gross, Charles E. | Dallas, TX 75220 | Oil & Gas Operator | Feb 2012 |
| 2484 | Ground Development Company Inc | Dallas, TX 75229-0377 | Oil & Gas Operator | Jan 2013 |
| 2485 | Grubb F W "Forest" | Garber, OK 73738-0186 | Oil & Gas Operator | Jun 2005 |
| 2486 | Grubb Ronald J | Clinton, OK 73601-0906 | Oil & Gas Operator | Aug 2013 |
| 2487 | Gruenerwald WM & Assoc Inc | Colorado Spring, CO 80960-0669 | Oil & Gas Operator | Jan 2002 |
| 2488 | Grynberg Petroleum Company | Greenwood Vge, CO 80111-3326 | Oil & Gas Operator | Oct 2019 |
| 2489 | Guest Petroleum Incorporated | Edmond, OK 73013 | Oil & Gas Operator | Nov 2025 |
| 2490 | Guest R E Oil Producer | Edmond, OK 73083-0805 | Oil & Gas Operator | Mar 2015 |
| 2491 | Gugli Corporation | Byng, OK 74820 | Oil & Gas Operator | Sep 2014 |
| 2492 | Guinn David E | Cleveland, OK 74020 | Oil & Gas Operator | Oct 2025 |
| 2493 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Dec 2025 |
| 2494 | Gulf Production Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Apr 2015 |
| 2495 | Gulfport Energy Corporation | Oklahoma City, OK 73114-5003 | Oil & Gas Operator | Aug 2025 |
| 2496 | Gulfport Midcon LLC | Oklahoma City, OK 73114-8132 | Oil & Gas Operator | Nov 2025 |
| 2497 | Gulfstream Petroleum Corp | | Oil & Gas Operator | Feb 2002 |
| 2498 | Gungoll Carl E Estate | Oklahoma City, OK 73154-0466 | Oil & Gas Operator | Aug 2000 |
| 2499 | Gungoll Henry H. Associates | Enid, OK 73701 | Oil & Gas Operator | Jun 2025 |
| 2500 | Gunkel Charley Wayne Rev Inter VIvos Trust | Schulter, OK 74460-0010 | Gas Operator | Dec 2015 |