| 1401 | Exok, Inc | Oklahoma City, OK 73116 | Oil & Gas Operator | Jan 2024 |
| 1402 | Extreme Energy Co | | Oil & Gas Operator | Dec 2023 |
| 1403 | Exxon Corporatio | | Oil & Gas Operator | Dec 1995 |
| 1404 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 2023 |
| 1405 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
| 1406 | Exxonmobil Oil Corp | Houston, TX 77210 | Oil & Gas Operator | Mar 2024 |
| 1407 | F & M Oil Compan | | Oil & Gas Operator | Feb 1993 |
| 1408 | F & M Oil Company Inc | Pettus, TX 78146 | Oil & Gas Operator | Apr 2024 |
| 1409 | F & S Oil | | Oil Operator | Dec 2021 |
| 1410 | F E W Oil Compan | | Oil Operator | Jul 1993 |
| 1411 | F.D. Looman | Sedan, KS 67361 | Oil Operator | Jun 2008 |
| 1412 | F.E.W. Oil Co. | Oceanside, CA 92058 | Oil Operator | Oct 2012 |
| 1413 | F.G. Holl Co., LLC | Wichita, KS 67206 | Oil & Gas Operator | Dec 2023 |
| 1414 | Fadely, Dale Leon | Sedan, KS 67361 | Oil & Gas Operator | Dec 2009 |
| 1415 | Fair Banks Enterprises | Chanute, KS 66720 | Oil Operator | Mar 2013 |
| 1416 | Fair Oil, LTD. | Tyler, TX 75710 | Oil & Gas Operator | Apr 2024 |
| 1417 | Fair Seas Enterp | | Oil & Gas Operator | Jun 1988 |
| 1418 | Fairchild Explor | | Oil & Gas Operator | Apr 1995 |
| 1419 | Fairchild, Bob | Kingman, KS 67068 | Oil Operator | Jan 2001 |
| 1420 | Fairway Petroleu | | Oil & Gas Operator | Dec 1994 |
| 1421 | Fairway Petroleum, Inc. | Stafford, TX 77497 | Oil & Gas Operator | Nov 2001 |
| 1422 | Faith Partners I | | Oil Operator | Feb 1989 |
| 1423 | Faith Petroleum, Inc. | Arkansas City, KS 67005 | Oil & Gas Operator | Dec 2023 |
| 1424 | Falcon Energy Co | | Oil Operator | Apr 1992 |
| 1425 | Falcon Explorati | | Oil & Gas Operator | Apr 1995 |
| 1426 | Falcon Exploration | | Oil Operator | Dec 1994 |
| 1427 | Falcon Exploration, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Dec 2023 |
| 1428 | Falkin, Richard T. | Hepler, KS 66746 | Oil Operator | Nov 2019 |
| 1429 | Fancher Oil Co. | | Oil & Gas Operator | Sep 1995 |
| 1430 | Fancher Oil Comp | | Oil & Gas Operator | Aug 1995 |
| 1431 | Fancher, Geo. H, Jr. | Denver, CO 80202 | Gas Operator | Mar 1996 |
| 1432 | Fanshier, Roger | Seward, KS 67576 | Oil Operator | Oct 2008 |
| 1433 | Farmer Dog Oil Co., A General Partnership | Humboldt, KS 66748 | Oil Operator | Dec 2023 |
| 1434 | Farmer, John O., Inc. | Russell, KS 67665 | Oil & Gas Operator | Dec 2023 |
| 1435 | Farrar Oilwell S | | Oil & Gas Operator | Jul 1986 |
| 1436 | Farrar Pump & Su | | Oil & Gas Operator | Dec 1996 |
| 1437 | Farrar Pump & Supply Co., Inc. | Medicine Lodge, KS 67104 | Oil & Gas Operator | Jun 2009 |
| 1438 | Farris Oil, Inc. | Sedan, KS 67361 | Oil Operator | Dec 2023 |
| 1439 | Farris Well Service | | Oil & Gas Operator | Dec 2021 |
| 1440 | Farthing Don Oil | | Oil & Gas Operator | Jun 1994 |
| 1441 | Fastrak Energy, LLC | Cherryvale, KS 67335 | Oil & Gas Operator | Dec 2023 |
| 1442 | Faulconer Vernon E Inc | Tyler, TX 75711 | Oil & Gas Operator | Feb 2024 |
| 1443 | Fe Co. | Derby, KS 67037 | Oil & Gas Operator | Dec 2009 |
| 1444 | Fell Oil & Gas C | | Oil Operator | Oct 1991 |
| 1445 | Fender, Mildred A. | Russell, KS 67665 | Oil & Gas Operator | Jun 2000 |
| 1446 | Ferris, Wakyn W. | Denver, CO 80202 | Oil Operator | Jun 1988 |
| 1447 | Fewins, Gary D. | Moran, KS 66755 | Oil Operator | Jul 2019 |
| 1448 | Fidelity Energy, Inc. | Houston, TX 77055 | Oil & Gas Operator | Dec 2009 |
| 1449 | Fina Oil & Chemi | | Oil & Gas Operator | Oct 1995 |
| 1450 | Fina Oil And Chemical Company | Dallas, TX 75221 | Oil & Gas Operator | May 2019 |
| 1451 | Finley Oil Compa | | Oil Operator | Oct 1992 |
| 1452 | Finney Drilling Co. | Wann, OK 74083-2314 | Oil Operator | Jul 2018 |
| 1453 | Finney Oil Company | | Oil & Gas Operator | Dec 2023 |
| 1454 | First Energy Cor | | Oil Operator | Aug 1990 |
| 1455 | First Energy Corporation | | Oil & Gas Operator | Jun 1993 |
| 1456 | First National Oil, Inc. | Edmond, OK 73003 | Oil & Gas Operator | Jan 2024 |
| 1457 | Five Star Energy, Inc. | Seguin, TX 78155 | Oil & Gas Operator | Dec 2023 |
| 1458 | Flatirons Resources LLC | Westminster, CO 80021 | Oil & Gas Operator | Dec 2022 |
| 1459 | Flatland Energy, LLC | Gardner, KS 66030 | Oil Operator | Nov 2023 |
| 1460 | Flatland Oil Com | | Oil Operator | Sep 1985 |
| 1461 | Flatlander Energy LLC | | Oil & Gas Operator | Jan 2024 |
| 1462 | Flatlander Petroleum LLC | | Oil & Gas Operator | Dec 2023 |
| 1463 | Flint Hills Production Co., Inc. | Gas City, KS 66742 | Oil Operator | Nov 2009 |
| 1464 | Flintstone Energy, LLC | El Dorado, KS 67042 | Oil Operator | Jun 2020 |
| 1465 | Florine, Inc. | Gypsum, KS 67448 | Oil Operator | Aug 2023 |
| 1466 | Flowers Prod Com | | Oil Operator | Aug 1994 |
| 1467 | Flowers Production Co., Inc. | El Dorado, KS 67042 | Oil Operator | Jul 2009 |
| 1468 | Flowers Well Ser | | Oil Operator | Feb 1991 |
| 1469 | Flynn Energy Cor | | Oil & Gas Operator | Mar 1992 |
| 1470 | Fna Oil Company, LLC | Richfield, KS 67953 | Gas Operator | Dec 2023 |
| 1471 | Folk Oil | | Oil Operator | Dec 2009 |
| 1472 | Fontus Eor, LLC | Houston, TX 77088 | Oil Operator | May 2023 |
| 1473 | Forbes Harold G | | Oil Operator | Dec 1984 |
| 1474 | Forbes, Patrick T. | Eureka, KS 67045 | Oil Operator | Nov 2023 |
| 1475 | Foreman Enterprises, Inc. | Edmond, OK 73003 | Oil & Gas Operator | Feb 2024 |
| 1476 | Forestar Petroleum Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2017 |
| 1477 | Formation Mechan | | Oil Operator | Dec 1986 |
| 1478 | Fossil Creek Energy, LLC | Russell, KS 67665 | Oil Operator | Dec 2023 |
| 1479 | Fossil Energy, LLC | Russell, KS 67665 | Oil Operator | Dec 2023 |
| 1480 | Fossil Resources LLC | Hays, KS 67601 | Oil Operator | Dec 2023 |
| 1481 | Foster Gas Corporation | Brownwood, TX 76801 | Oil & Gas Operator | Jan 2009 |
| 1482 | Foster Oil & Gas | Bartlesville, OK 74005 | Oil & Gas Operator | Mar 2014 |
| 1483 | Foster Oil LLC | | Oil Operator | Nov 2023 |
| 1484 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Apr 2024 |
| 1485 | Four Star Oil & Gas Company | Houston, TX 77252 | Oil & Gas Operator | Dec 2023 |
| 1486 | Four Star Oil - | | Oil Operator | Dec 1987 |
| 1487 | Four States Petr | | Oil & Gas Operator | Nov 1990 |
| 1488 | Four-J Oil Ops | Osawatomie, KS 66064 | Oil Operator | Mar 1998 |
| 1489 | Four-Way Oper In | | Oil Operator | Aug 1994 |
| 1490 | Four-Way Operating, Inc. | Great Bend, KS 67530 | Oil Operator | Sep 2013 |
| 1491 | Fourth Quarter Program | Boulder, CO 80306 | Oil Operator | Feb 2006 |
| 1492 | Fourwinds Oil Corporation | Hays, KS 67601 | Oil Operator | Dec 2023 |
| 1493 | Fox, Don | Chase, KS 67524 | Oil & Gas Operator | Jul 2006 |
| 1494 | Fox, Warren F. Family Trust | Plains, KS 67869 | Oil Operator | Jun 2016 |
| 1495 | Foxfire Expl. | | Oil Operator | Jun 1997 |
| 1496 | Foxfire Explorat | | Oil Operator | Dec 1986 |
| 1497 | Fpco Oil & Gas Co. | New Orleans, LA 70160 | Oil & Gas Operator | Dec 2023 |
| 1498 | Franklin Calvin | | Oil Operator | Aug 1995 |
| 1499 | Free State Petroleum | Hays, KS 67601 | Oil Operator | Jul 2021 |
| 1500 | Fremont Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 2004 |