| 1701 | Greensburg Oilfield LLC | Zenda, KS 67159 | Oil Operator | Nov 2013 |
| 1702 | Greenwood Resources L.L.C. | Pratt, KS 67124 | Oil Operator | May 2026 |
| 1703 | Greer Oil Compan | | Oil & Gas Operator | Jun 1988 |
| 1704 | Greer Tom & Welm | | Oil Operator | Mar 1995 |
| 1705 | Greer, Joseph V. | Yates Center, KS 66783 | Oil & Gas Operator | Oct 2005 |
| 1706 | Greer, Tom | Ponca City, OK 74602 | Oil Operator | Aug 2016 |
| 1707 | Gressel Production, LLC | South Haven, KS 67140 | Oil & Gas Operator | May 2026 |
| 1708 | Gressel, Dewey H. | | Oil Operator | Dec 2009 |
| 1709 | Grey Oil Co | Pratt, KS 67124 | Oil & Gas Operator | Sep 2007 |
| 1710 | Grey, Glenn E. | Haviland, KS 67059 | Oil Operator | Mar 2002 |
| 1711 | Grey, Huey P. | Greensburg, KS 67054 | Oil Operator | Dec 1984 |
| 1712 | Grey, James H. | Greensburg, KS 67054 | Gas Operator | Nov 1988 |
| 1713 | Greystone, Inc. | Hays, KS 67601 | Oil Operator | Jun 2019 |
| 1714 | Griffin, Charles | Stafford, KS 67578 | Oil Operator | Sep 1997 |
| 1715 | Griggs Oil Incor | | Oil & Gas Operator | May 1994 |
| 1716 | Grizzly Energy Resources, L.L.C. | Midland, TX 79705 | Oil & Gas Operator | Jul 2026 |
| 1717 | Gross William R | | Oil Operator | Feb 1986 |
| 1718 | Groves, Frank | Arkansas City, KS 67005 | Oil & Gas Operator | Mar 1995 |
| 1719 | Gruenerwald WM & | | Oil & Gas Operator | Apr 1994 |
| 1720 | Grunder Oil, LLC | St John, KS 67576 | Oil Operator | May 2026 |
| 1721 | Gruss Petroleum | | Oil Operator | Jan 1986 |
| 1722 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 1723 | Guinn Investments, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2018 |
| 1724 | Guinotte Company LLC | Ottawa, KS 66067 | Oil Operator | Dec 2009 |
| 1725 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Aug 2026 |
| 1726 | Gulick Drilling , Inc. | Eureka, KS 67045 | Oil Operator | Oct 2025 |
| 1727 | Gumfory, Shawn | Iola, KS 66749 | Oil Operator | Jul 1998 |
| 1728 | Gunner Oil Company | Wichita, KS 67205 | Oil & Gas Operator | May 2026 |
| 1729 | Gus Jones Cable Tool Service, LLC | Elk City, KS 67344 | Oil Operator | May 2026 |
| 1730 | Gusher Oil | | Oil Operator | Jul 2004 |
| 1731 | Gustison Steven | | Oil Operator | Feb 1985 |
| 1732 | Guthrie Oil Co | | Oil Operator | Nov 1994 |
| 1733 | Guthrie Oil Comp | | Oil & Gas Operator | Dec 1994 |
| 1734 | H & B Petroleum Corp. | Hutchinson, KS 67504 | Oil & Gas Operator | May 2026 |
| 1735 | H & C Oil Operat | | Oil & Gas Operator | Dec 1996 |
| 1736 | H & C Oil Operating Inc. | Plainville, KS 67663 | Oil & Gas Operator | May 2026 |
| 1737 | H & D Exploration LLC | Hoisington, KS 67544 | Oil & Gas Operator | May 2026 |
| 1738 | H & H Oil Compan | | Oil & Gas Operator | Aug 1995 |
| 1739 | H & H Oil Company | | Oil & Gas Operator | May 2026 |
| 1740 | H & H Oil Company, A General Partnership | Plainville, KS 67663 | Oil Operator | Feb 1997 |
| 1741 | H & H Oil, LLC | Lincolnville, KS 66858 | Oil Operator | Apr 2026 |
| 1742 | H & H Production | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2015 |
| 1743 | H & H Production, Inc. | Topeka, KS 66614 | Oil Operator | May 1997 |
| 1744 | H & H Supply Inc | | Gas Operator | Mar 1985 |
| 1745 | H & L Operating Company | Amarillo, TX 79114 | Oil & Gas Operator | Feb 2020 |
| 1746 | H & L Oprerating Company LLP | Amarillo, TX 79114 | Oil & Gas Operator | Nov 2019 |
| 1747 | H & M Packers Serv. L.L.C. | | Oil Operator | Dec 2019 |
| 1748 | H & M Petroleum Corporation | Lincoln, NE 68516 | Oil & Gas Operator | Jun 2025 |
| 1749 | H & M Productions L.L.C. | Overland Park, KS 66210 | Oil Operator | May 1998 |
| 1750 | H & R Expl & Production Inc | Sidney, NE 69162 | Oil Operator | May 2007 |
| 1751 | H & R Exploratio | | Oil Operator | Feb 1992 |
| 1752 | H & S Oil Co., LLC | Cherryvale, KS 67335 | Oil Operator | Oct 2024 |
| 1753 | H & W Oil Company, Incorporated | Palm Desert, CA 92255 | Oil Operator | Nov 2017 |
| 1754 | H & W Oil Corpor | | Oil Operator | Dec 1996 |
| 1755 | H A L Petroleum | | Oil Operator | Oct 1987 |
| 1756 | H-30 Incorporate | | Oil & Gas Operator | Nov 1990 |
| 1757 | H-30, Inc. | Wichita, KS 67202 | Gas Operator | Oct 2006 |
| 1758 | H-5 Service | Plainville, KS 67663 | Oil Operator | May 1989 |
| 1759 | H-D Oilfield Service, Inc. | Bazine, KS 67516 | Oil Operator | May 2026 |
| 1760 | H. H. Blair Oil Company, Inc. | Atlanta, KS 67008 | Oil Operator | Dec 2009 |
| 1761 | H. I., Inc. | Liberal, KS 67901 | Oil & Gas Operator | Feb 2012 |
| 1762 | H.I.T. Resources, Inc. | Arkansas City, KS 67005 | Oil Operator | Jan 2007 |
| 1763 | H3 Oil & Gas | | Oil & Gas Operator | May 2026 |
| 1764 | Haack Operating Company | Tulsa, OK 74137 | Oil Operator | Nov 2019 |
| 1765 | Haas John L | | Oil Operator | Dec 2009 |
| 1766 | Haas Petroleum LLC | Prairie VIllage, KS 66208 | Oil Operator | May 2026 |
| 1767 | Haas, Mark L. | Kansas City, MO 67112 | Oil Operator | Feb 2013 |
| 1768 | Habit Petroleum | | Oil Operator | Dec 2009 |
| 1769 | Habit Petroleum, LLC | Hays, KS 67601 | Oil Operator | May 2026 |
| 1770 | Hacker, Jack | Coats, KS 67028 | Oil & Gas Operator | Apr 2026 |
| 1771 | Hackley Okla Inc | | Oil & Gas Operator | Aug 1992 |
| 1772 | Had-A-Call Oil | | Oil Operator | Feb 2017 |
| 1773 | Hadaway Consulting And Engineering LLC | Canadian, TX 79014 | Oil & Gas Operator | Jul 2026 |
| 1774 | Haddock, Jack L. | Hays, KS 67601 | Oil Operator | Apr 2026 |
| 1775 | Hadson Petroleum | | Oil Operator | Sep 1988 |
| 1776 | Hafer Run Enterprise | Independence, KS 67301 | Oil Operator | Oct 1997 |
| 1777 | Haffner Dan | Hoxie, KS 67740 | Oil Operator | May 2026 |
| 1778 | Haile, Guy W. | Sterling, KS 67579 | Oil Operator | May 2026 |
| 1779 | Hale, L.D. | Wichita, KS 67230 | Oil Operator | Oct 2019 |
| 1780 | Hall Oil And Gas LLC | Midland, TX 79707 | Oil & Gas Operator | Sep 2026 |
| 1781 | Hall Oil Company | Humboldt, KS 66748 | Oil Operator | Nov 2009 |
| 1782 | Hall Richard A | | Oil Operator | Sep 1993 |
| 1783 | Hall, J.J. Operating Co., Inc. | Lakewood, CO 80215 | Oil Operator | Jan 2005 |
| 1784 | Hall, Michael Wayne | Toronto, KS 66777 | Oil Operator | Dec 2009 |
| 1785 | Halliburton Oil | | Oil & Gas Operator | Sep 2008 |
| 1786 | Halliburton Oil Producing Co. | Duncan, OK 73534 | Oil & Gas Operator | Apr 2016 |
| 1787 | Hallwood Petrole | | Oil & Gas Operator | Apr 1999 |
| 1788 | Hallwood Petroleum | Denver, CO 80237 | Oil & Gas Operator | Dec 1997 |
| 1789 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | May 2026 |
| 1790 | Hamby Oil LLC | Ellinwood, KS 67526 | Oil Operator | May 2013 |
| 1791 | Hamilton Brother | | Gas Operator | May 1993 |
| 1792 | Hamlin Oil Opera | | Oil Operator | May 1988 |
| 1793 | Hamm N R Contrac | | Oil & Gas Operator | Jun 1989 |
| 1794 | Hammer Maclean Etal | Leon, KS 67074 | Oil Operator | Dec 2019 |
| 1795 | Hammer Oil Compa | | Oil Operator | Oct 1985 |
| 1796 | Hammerschmidt Wi | | Oil Operator | Sep 1991 |
| 1797 | Hammerschmidt, Leo | Plainville, KS 67663 | Oil Operator | Aug 2000 |
| 1798 | Hammerschmidt, William E | Plainville, KS 67663 | Oil Operator | May 2026 |
| 1799 | Hamp Oil | Ponca City, OK 74604 | Oil & Gas Operator | Sep 2002 |
| 1800 | Hamp Oil - Pace | | Oil & Gas Operator | Apr 1994 |