| 1501 | Hudson Energy LLC | | Oil Operator | Nov 2024 |
| 1502 | Hudson Group LLC | Casper, WY 82601 | Oil & Gas Operator | May 2025 |
| 1503 | Hudson Oil Company Of Texas | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 1504 | Hudson, Comer Oil & Gas | Cisco, TX 76437 | Oil & Gas Operator | Jan 2003 |
| 1505 | Huey Dean | | Oil Operator | Oct 2000 |
| 1506 | Hueysville Gas Co | Eastern, KY 41622 | Gas Operator | Dec 2014 |
| 1507 | Hufco, Incorporated | | Oil & Gas Operator | Dec 2020 |
| 1508 | Huff Minerals, LTD. | Amarillo, TX 79101 | Gas Operator | Jul 2025 |
| 1509 | Huff, Jack | Midland, TX 79710 | Oil & Gas Operator | Dec 2004 |
| 1510 | Huffco Petroleum Corporation | | Oil & Gas Operator | Jul 1988 |
| 1511 | Huffman Arthur | Waynesburg, PA 15370-1437 | Gas Operator | Dec 2024 |
| 1512 | Huffman, H. L., LTD. | Fort Worth, TX 76113 | Oil & Gas Operator | Sep 1994 |
| 1513 | Huffman-Bowers Inc | New Lexington, OH 43764 | Oil & Gas Operator | Dec 2024 |
| 1514 | Hufo Production Corporation | Midland, TX 79702 | Oil & Gas Operator | Jul 2002 |
| 1515 | Huggs & McConathy,Et Al | | Oil & Gas Operator | Dec 1985 |
| 1516 | Huggs Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2003 |
| 1517 | Huggs Inc. & Bec, Et Al | | Oil & Gas Operator | Feb 1998 |
| 1518 | Huggs Incorporated, Et Al | | Oil & Gas Operator | Feb 1998 |
| 1519 | Hugh A. Hawthorne, Et Al | | Oil & Gas Operator | Dec 1978 |
| 1520 | Hughes & Hughes | | Oil & Gas Operator | May 1984 |
| 1521 | Hughes & New Oil Co. | | Oil Operator | Jul 1993 |
| 1522 | Hughes & New-D. Braswell | | Oil & Gas Operator | Jun 1983 |
| 1523 | Hughes & Patterson Oper. Corp. | Albany, TX 76430 | Oil & Gas Operator | Jul 2025 |
| 1524 | Hughes & Shawver | Olney, TX 76374 | Oil & Gas Operator | Aug 1996 |
| 1525 | Hughes Denny Offshore Expl Inc | | Oil & Gas Operator | Nov 1988 |
| 1526 | Hughes Drilling Co, A General Partnership | Wellsville, KS 66092 | Oil Operator | Mar 2025 |
| 1527 | Hughes Drilling Co. | Enid, OK 73702 | Oil & Gas Operator | Apr 1998 |
| 1528 | Hughes Eastern Corporation | Ridgeland, MS 39157 | Oil & Gas Operator | Mar 2025 |
| 1529 | Hughes Eastern Petroleum, Inc. | | Oil & Gas Operator | Apr 1993 |
| 1530 | Hughes Eastern Petroleum, LTD. | | Oil & Gas Operator | Jun 1986 |
| 1531 | Hughes Gas Systems LLC | Dallas, TX 75214 | Oil & Gas Operator | Apr 2025 |
| 1532 | Hughes George B | Asher, OK 74826-0165 | Oil & Gas Operator | Mar 2011 |
| 1533 | Hughes Legacy LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2022 |
| 1534 | Hughes Oil Company Inc | Odessa, TX 79765 | Oil & Gas Operator | Feb 2004 |
| 1535 | Hughes Petroleum Corp. | | Oil Operator | Dec 1972 |
| 1536 | Hughes River Oil & Gas Company | Walker, WV 26180-0000 | Oil & Gas Operator | Dec 2021 |
| 1537 | Hughes Services, LLC | Wellsville, KS 66092 | Oil Operator | Mar 2025 |
| 1538 | Hughes Supplies, Inc. | Greenwood, LA 71033 | Oil & Gas Operator | Jul 2019 |
| 1539 | Hughes, Bill Drilling, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 1540 | Hughes, Bob Oil Company | San Angelo, TX 76901 | Oil & Gas Operator | Jul 2011 |
| 1541 | Hughes, Dan A. Company | Beeville, TX 78104 | Oil & Gas Operator | May 2006 |
| 1542 | Hughes, Dan A. Company, L.P. | Beeville, TX 78104 | Oil & Gas Operator | Jul 2025 |
| 1543 | Hughes, Wise & Assoc., Inc | | Oil Operator | Jul 1987 |
| 1544 | Hughes-Denny Petroleum Co.,Inc | | Oil & Gas Operator | Dec 1987 |
| 1545 | Hughes-Leckelt-Maybrier PRDCRS | | Oil Operator | Mar 2022 |
| 1546 | Hughes-Nicklaus Oil Co., LTD. | | Oil & Gas Operator | Feb 1986 |
| 1547 | Hughey, Gaylord T. SR. Oper. Co. | Tyler, TX 75711 | Oil & Gas Operator | Feb 1998 |
| 1548 | Hughey, W. R., Operating Co. | Tyler, TX 75711 | Oil & Gas Operator | Feb 2005 |
| 1549 | Hugoton Energy C | | Oil & Gas Operator | Feb 2004 |
| 1550 | Hugoton Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2019 |
| 1551 | Hugoton Operating Company, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jul 2025 |
| 1552 | Hugus Investment Company, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Jul 2025 |
| 1553 | Huitt Joe A | Tulsa, OK 74103 | Oil & Gas Operator | May 2001 |
| 1554 | Huitt Joe A Rev Trust | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2009 |
| 1555 | Hulen Operating Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Jul 2025 |
| 1556 | Hull Enterprises Inc | Broken Arrow, OK 74012 | Oil & Gas Operator | Sep 2023 |
| 1557 | Hull Oil Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2021 |
| 1558 | Hull, Gerald Walter | Leicester, NY 14481 | Gas Operator | Dec 2024 |
| 1559 | Hulse Steve & Frank | Pawhuska, OK 74056 | Oil & Gas Operator | Aug 2000 |
| 1560 | Hulse, J. T. | Archer City, TX 76351 | Oil & Gas Operator | Jul 2025 |
| 1561 | Hulse, Tommy P. | Archer City, TX 76351 | Oil & Gas Operator | Feb 2009 |
| 1562 | Hulsebosch, Jessica | Elmira, NY 14901 | Gas Operator | Dec 2024 |
| 1563 | Hulsey Larry O & Co | Graham, TX 76046 | Oil & Gas Operator | Jun 2012 |
| 1564 | Hulsey Oil Company | Dallas, TX 75205 | Oil & Gas Operator | Aug 1999 |
| 1565 | Humak Processors, Inc. | Tyler, TX 75710 | Oil & Gas Operator | Aug 2005 |
| 1566 | Humber Oil Company | Albany, TX 76430 | Oil & Gas Operator | Jul 2025 |
| 1567 | Humble Oil & Refining Co. | Houston, TX 77252 | Oil & Gas Operator | Jan 2000 |
| 1568 | Humerickhouse Oil, LLC | Ottawa, KS 66067 | Oil Operator | Mar 2025 |
| 1569 | Humerickhouse, Donald L. | Ottawa, KS 66067 | Oil Operator | Dec 2009 |
| 1570 | Hummingbird Oil, LLC | Sedan, KS 67361 | Oil Operator | Mar 2025 |
| 1571 | Hummon Corp. | Medicine Lodge, KS 67104 | Oil & Gas Operator | Apr 2023 |
| 1572 | Humphrey Mark | Morris, OK 74445-2816 | Oil & Gas Operator | Sep 2021 |
| 1573 | Humphrey, Thos.D. Oil Prop.,Inc. | Gainesville, TX 76241 | Oil & Gas Operator | Aug 1999 |
| 1574 | Humphrey-Bashford Oil, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Sep 2010 |
| 1575 | Hungerford Oil & Gas Inc | Helena, OK 73741 | Oil & Gas Operator | Nov 2000 |
| 1576 | Hungerford Oil Partners | Williamsville, NY 14221 | Oil Operator | Dec 2024 |
| 1577 | Hunt Brothers Producing Co Inc | Redding, CA 96049-2516 | Oil & Gas Operator | Sep 2012 |
| 1578 | Hunt Chris Water Hauling Contractor Inc | Keyes, OK 73947-0004 | Oil Operator | Jun 2008 |
| 1579 | Hunt Cimarron Limited Partnership | Roswell, NM 88202 | Oil & Gas Operator | May 2025 |
| 1580 | Hunt Cimarron LTD. Partnership | Roswell, NM 88202 | Oil & Gas Operator | Jul 2025 |
| 1581 | Hunt Energy Corporation | | Oil & Gas Operator | Feb 2002 |
| 1582 | Hunt Engineering Inc | Norman, OK 73069-4093 | Oil & Gas Operator | Feb 2019 |
| 1583 | Hunt Enterprises | | Oil & Gas Operator | Apr 2025 |
| 1584 | Hunt Industries, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2000 |
| 1585 | Hunt Investment Corporation | | Oil & Gas Operator | Jun 1989 |
| 1586 | Hunt Marcellus Opr Co LLC | Wilcox, PA 15870 | Oil & Gas Operator | Jan 2019 |
| 1587 | Hunt Oil Co., Et Al | | Oil & Gas Operator | Nov 1992 |
| 1588 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Jul 2025 |
| 1589 | Hunt Oil, LLC | Garnett, KS 66032 | Oil Operator | Feb 2024 |
| 1590 | Hunt Operating, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Jul 2025 |
| 1591 | Hunt Petroleum (Aec), Inc. | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 1592 | Hunt Petroleum Corporation | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 1593 | Hunt Petroleum, Inc. | Houston, TX 772511350 | Oil & Gas Operator | Nov 2002 |
| 1594 | Hunt, H L | Dallas, TX 75202-2785 | Oil & Gas Operator | Dec 2024 |
| 1595 | Hunt, Hassie Exploration Company | Dallas, TX 75201 | Oil & Gas Operator | Nov 2008 |
| 1596 | Hunt, Judith R. | Findley Lake, NY 14736 | Gas Operator | Dec 2024 |
| 1597 | Hunt, K Metal | | Oil & Gas Operator | Dec 2021 |
| 1598 | Hunt, WM. Herbert, Trust Est. | Dallas, TX 75201 | Oil & Gas Operator | Sep 1998 |
| 1599 | Hunter & Hedrick Production, Inc | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Dec 1995 |
| 1600 | Hunter & McDonald | Wichita Falls, TX 76309 | Oil & Gas Operator | Jul 2001 |