| 1501 | Huber Corporation* J M | | Oil & Gas Operator | Feb 2008 |
| 1502 | Huber Energy L.P. | Houston, TX 77079 | Oil & Gas Operator | Feb 2007 |
| 1503 | Huber Energy Panhandle LP | Houston, TX 77079 | Oil & Gas Operator | Oct 2005 |
| 1504 | Huber J M Corp | Edison, NJ 08837 | Oil & Gas Operator | Jun 2025 |
| 1505 | Huber J M Corpor | | Oil & Gas Operator | Dec 1996 |
| 1506 | Huber Oil Company, A General Partnership | Madison, KS 66860 | Oil & Gas Operator | Feb 2025 |
| 1507 | Hubl/Harbin | | Oil Operator | Dec 1994 |
| 1508 | Hubler John | Tulsa, OK 74133-2716 | Oil & Gas Operator | Mar 2015 |
| 1509 | Huck Farms LLC | Stratford, OK 74872 | Oil & Gas Operator | Mar 2025 |
| 1510 | Hudgens Lester E | Bartlesville, OK 74006-0215 | Oil Operator | Mar 2015 |
| 1511 | Hudgens Operating Co., Inc. | Abilene, TX 79603 | Oil & Gas Operator | Jul 1995 |
| 1512 | Hudson Brothers Mining Co., Inc. | Cisco, TX 76437 | Oil & Gas Operator | Jun 1994 |
| 1513 | Hudson Brothers, Inc. | Hutchinson, KS 67501 | Oil & Gas Operator | Jun 2007 |
| 1514 | Hudson Energy LLC | | Oil Operator | Nov 2024 |
| 1515 | Hudson Group LLC | Casper, WY 82601 | Oil & Gas Operator | Mar 2025 |
| 1516 | Hudson Oil Company Of Texas | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 1517 | Hudson, Comer Oil & Gas | Cisco, TX 76437 | Oil & Gas Operator | Jan 2003 |
| 1518 | Huey Dean | | Oil Operator | Oct 2000 |
| 1519 | Hueysville Gas Co | Eastern, KY 41622 | Gas Operator | Dec 2014 |
| 1520 | Hufco, Incorporated | | Oil & Gas Operator | Dec 2020 |
| 1521 | Huff Minerals, LTD. | Amarillo, TX 79101 | Gas Operator | Jun 2025 |
| 1522 | Huff, Jack | Midland, TX 79710 | Oil & Gas Operator | Dec 2004 |
| 1523 | Huffco Petroleum Corporation | | Oil & Gas Operator | Jul 1988 |
| 1524 | Huffman Arthur | Waynesburg, PA 15370-1437 | Gas Operator | Dec 2024 |
| 1525 | Huffman, H. L., LTD. | Fort Worth, TX 76113 | Oil & Gas Operator | Sep 1994 |
| 1526 | Huffman-Bowers Inc | New Lexington, OH 43764 | Oil & Gas Operator | Dec 2024 |
| 1527 | Hufo Production Corporation | Midland, TX 79702 | Oil & Gas Operator | Jul 2002 |
| 1528 | Huggs & McConathy,Et Al | | Oil & Gas Operator | Dec 1985 |
| 1529 | Huggs Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2003 |
| 1530 | Huggs Inc. & Bec, Et Al | | Oil & Gas Operator | Feb 1998 |
| 1531 | Huggs Incorporated, Et Al | | Oil & Gas Operator | Feb 1998 |
| 1532 | Hugh A. Hawthorne, Et Al | | Oil & Gas Operator | Dec 1978 |
| 1533 | Hughes & Hughes | | Oil & Gas Operator | May 1984 |
| 1534 | Hughes & New Oil Co. | | Oil Operator | Jul 1993 |
| 1535 | Hughes & New-D. Braswell | | Oil & Gas Operator | Jun 1983 |
| 1536 | Hughes & Patterson Oper. Corp. | Albany, TX 76430 | Oil & Gas Operator | Jun 2025 |
| 1537 | Hughes & Shawver | Olney, TX 76374 | Oil & Gas Operator | Aug 1996 |
| 1538 | Hughes Denny Offshore Expl Inc | | Oil & Gas Operator | Nov 1988 |
| 1539 | Hughes Drilling Co, A General Partnership | Wellsville, KS 66092 | Oil Operator | Feb 2025 |
| 1540 | Hughes Drilling Co. | Enid, OK 73702 | Oil & Gas Operator | Apr 1998 |
| 1541 | Hughes Eastern Corporation | Ridgeland, MS 39157 | Oil & Gas Operator | Mar 2025 |
| 1542 | Hughes Eastern Petroleum, Inc. | | Oil & Gas Operator | Apr 1993 |
| 1543 | Hughes Eastern Petroleum, LTD. | | Oil & Gas Operator | Jun 1986 |
| 1544 | Hughes Gas Systems LLC | Dallas, TX 75214 | Oil & Gas Operator | Feb 2025 |
| 1545 | Hughes George B | Asher, OK 74826-0165 | Oil & Gas Operator | Mar 2011 |
| 1546 | Hughes Legacy LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2022 |
| 1547 | Hughes Oil Company Inc | Odessa, TX 79765 | Oil & Gas Operator | Feb 2004 |
| 1548 | Hughes Petroleum Corp. | | Oil Operator | Dec 1972 |
| 1549 | Hughes River Oil & Gas Company | Walker, WV 26180-0000 | Oil & Gas Operator | Dec 2021 |
| 1550 | Hughes Services, LLC | Wellsville, KS 66092 | Oil Operator | Dec 2024 |
| 1551 | Hughes Supplies, Inc. | Greenwood, LA 71033 | Oil & Gas Operator | Jul 2019 |
| 1552 | Hughes, Bill Drilling, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 1553 | Hughes, Bob Oil Company | San Angelo, TX 76901 | Oil & Gas Operator | Jul 2011 |
| 1554 | Hughes, Dan A. Company | Beeville, TX 78104 | Oil & Gas Operator | May 2006 |
| 1555 | Hughes, Dan A. Company, L.P. | Beeville, TX 78104 | Oil & Gas Operator | Jun 2025 |
| 1556 | Hughes, Wise & Assoc., Inc | | Oil Operator | Jul 1987 |
| 1557 | Hughes-Denny Petroleum Co.,Inc | | Oil & Gas Operator | Dec 1987 |
| 1558 | Hughes-Leckelt-Maybrier PRDCRS | | Oil Operator | Mar 2022 |
| 1559 | Hughes-Nicklaus Oil Co., LTD. | | Oil & Gas Operator | Feb 1986 |
| 1560 | Hughey, Gaylord T. SR. Oper. Co. | Tyler, TX 75711 | Oil & Gas Operator | Feb 1998 |
| 1561 | Hughey, W. R., Operating Co. | Tyler, TX 75711 | Oil & Gas Operator | Feb 2005 |
| 1562 | Hugoton Energy C | | Oil & Gas Operator | Feb 2004 |
| 1563 | Hugoton Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2019 |
| 1564 | Hugoton Operating Company, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jun 2025 |
| 1565 | Hugus Investment Company, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Jun 2025 |
| 1566 | Huitt Joe A | Tulsa, OK 74103 | Oil & Gas Operator | May 2001 |
| 1567 | Huitt Joe A Rev Trust | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2009 |
| 1568 | Hulen Operating Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Jun 2025 |
| 1569 | Hull Enterprises Inc | Broken Arrow, OK 74012 | Oil & Gas Operator | Sep 2023 |
| 1570 | Hull Oil Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2021 |
| 1571 | Hull, Gerald Walter | Leicester, NY 14481 | Gas Operator | Dec 2023 |
| 1572 | Hulse Steve & Frank | Pawhuska, OK 74056 | Oil & Gas Operator | Aug 2000 |
| 1573 | Hulse, J. T. | Archer City, TX 76351 | Oil & Gas Operator | Jun 2025 |
| 1574 | Hulse, Tommy P. | Archer City, TX 76351 | Oil & Gas Operator | Feb 2009 |
| 1575 | Hulsebosch, Jessica | Elmira, NY 14901 | Gas Operator | Dec 2023 |
| 1576 | Hulsey Larry O & Co | Graham, TX 76046 | Oil & Gas Operator | Jun 2012 |
| 1577 | Hulsey Oil Company | Dallas, TX 75205 | Oil & Gas Operator | Aug 1999 |
| 1578 | Humak Processors, Inc. | Tyler, TX 75710 | Oil & Gas Operator | Aug 2005 |
| 1579 | Humber Oil Company | Albany, TX 76430 | Oil & Gas Operator | Jun 2025 |
| 1580 | Humble Oil & Refining Co. | Houston, TX 77252 | Oil & Gas Operator | Jan 2000 |
| 1581 | Humerickhouse Oil, LLC | Ottawa, KS 66067 | Oil Operator | Feb 2025 |
| 1582 | Humerickhouse, Donald L. | Ottawa, KS 66067 | Oil Operator | Dec 2009 |
| 1583 | Hummingbird Oil, LLC | Sedan, KS 67361 | Oil Operator | Feb 2025 |
| 1584 | Hummon Corp. | Medicine Lodge, KS 67104 | Oil & Gas Operator | Apr 2023 |
| 1585 | Humphrey Mark | Morris, OK 74445-2816 | Oil & Gas Operator | Sep 2021 |
| 1586 | Humphrey, Thos.D. Oil Prop.,Inc. | Gainesville, TX 76241 | Oil & Gas Operator | Aug 1999 |
| 1587 | Humphrey-Bashford Oil, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Sep 2010 |
| 1588 | Hungerford Oil & Gas Inc | Helena, OK 73741 | Oil & Gas Operator | Nov 2000 |
| 1589 | Hungerford Oil Partners | Williamsville, NY 14221 | Oil Operator | Dec 2023 |
| 1590 | Hunt Brothers Producing Co Inc | Redding, CA 96049-2516 | Oil & Gas Operator | Sep 2012 |
| 1591 | Hunt Chris Water Hauling Contractor Inc | Keyes, OK 73947-0004 | Oil Operator | Jun 2008 |
| 1592 | Hunt Cimarron Limited Partnership | Roswell, NM 88202 | Oil & Gas Operator | Apr 2025 |
| 1593 | Hunt Cimarron LTD. Partnership | Roswell, NM 88202 | Oil & Gas Operator | Jun 2025 |
| 1594 | Hunt Energy Corporation | | Oil & Gas Operator | Feb 2002 |
| 1595 | Hunt Engineering Inc | Norman, OK 73069-4093 | Oil & Gas Operator | Feb 2019 |
| 1596 | Hunt Enterprises | | Oil & Gas Operator | Mar 2025 |
| 1597 | Hunt Industries, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2000 |
| 1598 | Hunt Investment Corporation | | Oil & Gas Operator | Jun 1989 |
| 1599 | Hunt Marcellus Opr Co LLC | Wilcox, PA 15870 | Oil & Gas Operator | Jan 2019 |
| 1600 | Hunt Oil Co., Et Al | | Oil & Gas Operator | Nov 1992 |