| 1501 | Trigon Exploration, Inc. | | Oil & Gas Operator | Jan 1999 |
| 1502 | Trilliant Energy Texas LTD | Tulsa, OK 74135-0767 | Oil & Gas Operator | Jun 2020 |
| 1503 | Trilogy Natural Resources LLC | Edmond, OK 73025 | Oil & Gas Operator | Jun 2026 |
| 1504 | Trilogy Operating, Inc. | Midland, TX 79708 | Oil & Gas Operator | Sep 2026 |
| 1505 | Trimble & Maclaskey Oil LLC | Gridley, KS 66852 | Oil Operator | May 2026 |
| 1506 | Trimble, Don G Dba Trimble Production Company | | Oil Operator | Jan 2025 |
| 1507 | Trimble, IVal L. | Gridley, KS 66852 | Oil Operator | Dec 2019 |
| 1508 | Trimont Energy LLC | Pittsburgh, PA 15211-1205 | Oil & Gas Operator | Dec 2016 |
| 1509 | Trineha Inc | Ardmore, OK 73402-2478 | Oil & Gas Operator | Jun 2009 |
| 1510 | Trinidad Energy, LLC | Midland, TX 79708 | Oil & Gas Operator | Sep 2026 |
| 1511 | Trinidad Exploration, Inc. | Tyler, TX 75703 | Oil & Gas Operator | Mar 2008 |
| 1512 | Trinidad Petroleum Corporation | | Oil & Gas Operator | Apr 1990 |
| 1513 | Trinidad Petroleum, Inc. | Austin, TX 78711 | Oil & Gas Operator | Sep 2026 |
| 1514 | Trinidad Resources, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Sep 2026 |
| 1515 | Trinity Bay Oil & Gas, Inc. | Lubbock, TX 79416 | Oil & Gas Operator | Sep 2026 |
| 1516 | Trinity Energy Corp | Gibsonia, PA 15044-9106 | Oil & Gas Operator | Dec 2007 |
| 1517 | Trinity Eor, LLC | Midland, TX 79701 | Oil & Gas Operator | Jan 2019 |
| 1518 | Trinity Exploration Co | | Oil Operator | Dec 1998 |
| 1519 | Trinity Gas Corporation | Enid, OK 73702 | Oil & Gas Operator | Sep 2026 |
| 1520 | Trinity Gas Storage, LLC | Flower Mound, TX 75028 | Oil & Gas Operator | Sep 2026 |
| 1521 | Trinity Group LLC | | Oil Operator | Dec 1997 |
| 1522 | Trinity Mineral Partners LLC | Pittsburgh, PA 15238-2718 | Oil & Gas Operator | Dec 2025 |
| 1523 | Trinity Minerals&Operating Corp. | Abilene, TX 79605 | Oil & Gas Operator | Dec 1995 |
| 1524 | Trinity Oil & Gas Dev Inc | | Oil & Gas Operator | Jun 1994 |
| 1525 | Trinity Oil & Gas Inc | Pauls Valley, OK 73075 | Oil Operator | Jun 2026 |
| 1526 | Trinity Oil & Gas Producers LLC | Allen, OK 74825 | Oil & Gas Operator | Jul 2026 |
| 1527 | Trinity Operating & Prod., Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 1528 | Trinity Operating (Usg), LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2026 |
| 1529 | Trinity Resources, Inc. | Houston, TX 77277 | Oil & Gas Operator | May 2020 |
| 1530 | Trinity River Energy Oper, LLC | Houston, TX 77008 | Oil & Gas Operator | May 2018 |
| 1531 | Trinity River Energy, LLC | Houston, TX 77094 | Oil & Gas Operator | Aug 2015 |
| 1532 | Trinity River Operating Company | Oklahoma City, OK 73147 | Oil & Gas Operator | Sep 2026 |
| 1533 | Trinity University & Closuit | Loco Hills, NM 88255 | Oil & Gas Operator | Dec 2002 |
| 1534 | Trio Consulting & Management,LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 1535 | Trio Oil And Gas Company | | Oil & Gas Operator | Nov 2021 |
| 1536 | Trio Oil Co | Hobbs, NM 88240 | Oil & Gas Operator | Feb 2004 |
| 1537 | Trio Operating Company, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2006 |
| 1538 | Trio Petroleum Corp. | Glenville, WV 263510880 | Oil & Gas Operator | Jul 2016 |
| 1539 | Trio Petroleum LLC | | Oil & Gas Operator | Jun 2026 |
| 1540 | Trio Production Company, LLC | Stephens, AR 71764 | Oil Operator | Jan 2025 |
| 1541 | Triple "B" Production DRLG Inc | Poynor, TX 75782 | Oil & Gas Operator | Sep 2022 |
| 1542 | Triple "G" Oil Company | Clyde, TX 79510 | Oil & Gas Operator | Apr 1999 |
| 1543 | Triple "N" Services, Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 1544 | Triple "S" Gas, Inc. | Louisville, KY 40255 | Oil & Gas Operator | Jan 2026 |
| 1545 | Triple "S" Resources Inc | Sapulpa, OK 74066 | Oil & Gas Operator | Jun 1995 |
| 1546 | Triple "S" Well Service, Inc. | Eureka, KS 67045 | Oil Operator | May 2026 |
| 1547 | Triple "W" Oil Company | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 1548 | Triple 'A' Energy, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Sep 2026 |
| 1549 | Triple 'H' Oil O | | Oil Operator | Apr 1992 |
| 1550 | Triple - I, Inc. | Kansas City, MO 64114 | Gas Operator | Oct 2000 |
| 1551 | Triple 7 Energy Company Inc | Prague, OK 74864 | Oil Operator | Feb 1997 |
| 1552 | Triple B Crude, LLC | Colony, KS 66015 | Oil Operator | Feb 2026 |
| 1553 | Triple B Energy Inc | Gillette, WY 82716 | Oil Operator | Dec 1999 |
| 1554 | Triple B Energy LLC | Dorset, OH 44032 | Oil & Gas Operator | Dec 2025 |
| 1555 | Triple B Resources | Barnsdall, OK 74002-9759 | Oil & Gas Operator | May 2014 |
| 1556 | Triple C Oil Inc. | Lockhart, TX 78644 | Oil Operator | Aug 2019 |
| 1557 | Triple C Petroleum LLC | Colony, KS 66015 | Oil Operator | Nov 2019 |
| 1558 | Triple C Properties Inc | Seminole, OK 74868 | Oil & Gas Operator | Jan 2026 |
| 1559 | Triple Crown Operating LLC | Tulsa, OK 74114 | Oil Operator | May 2026 |
| 1560 | Triple Crown Resources, LLC | Dallas, TX 75201 | Oil & Gas Operator | Sep 2026 |
| 1561 | Triple D Oil & Gas Co., Inc. | Brownwood, TX 76801 | Oil & Gas Operator | Sep 2026 |
| 1562 | Triple Diamond Energy Operating LLC | Dallas, TX 75254-8352 | Oil & Gas Operator | Jun 2014 |
| 1563 | Triple E Drillin | | Oil Operator | Jun 1992 |
| 1564 | Triple E Oil | Sterling, KS 67579 | Oil & Gas Operator | Mar 1999 |
| 1565 | Triple G Oil & Gas | Sonora, TX 76950 | Oil & Gas Operator | Oct 2022 |
| 1566 | Triple G Oilfiel | | Oil & Gas Operator | Dec 1985 |
| 1567 | Triple G Well Service, Inc. | Muenster, TX 76252 | Oil & Gas Operator | Sep 2026 |
| 1568 | Triple Gas Co | Marietta, OH 45750 | Oil & Gas Operator | Dec 1984 |
| 1569 | Triple H Operating | Tryon, OK 74875-6235 | Oil Operator | Apr 2022 |
| 1570 | Triple J Investments Inc | Longview, TX 75606 | Oil & Gas Operator | Feb 2023 |
| 1571 | Triple J L.L.C. | Coffeyville, KS 67336 | Oil Operator | Mar 1999 |
| 1572 | Triple J Oil Co. | Pampa, TX 79065 | Oil & Gas Operator | Aug 1996 |
| 1573 | Triple J Prod In | | Oil Operator | Sep 1989 |
| 1574 | Triple K | | Oil Operator | Jun 2007 |
| 1575 | Triple K Oil LLC | | Oil & Gas Operator | Dec 2025 |
| 1576 | Triple L Management Co Inc | Edmond, OK 73025-2908 | Oil & Gas Operator | Apr 2018 |
| 1577 | Triple L Oil Company | Corpus Christ, TX 78469 | Oil & Gas Operator | Jan 1998 |
| 1578 | Triple L Operating Company LLC | Kilgore, TX 75663 | Oil Operator | Sep 2026 |
| 1579 | Triple M Saltwater Disposal, LP | Kilgore, TX 75663 | Oil Operator | Sep 2026 |
| 1580 | Triple Oak Farms, LLC | Eden, NY 14057 | Gas Operator | Dec 2025 |
| 1581 | Triple S Construction | Blue Mound, KS 66010 | Gas Operator | May 2026 |
| 1582 | Triple S Drilling Company | Leonard, OK 74043 | Oil & Gas Operator | Feb 2012 |
| 1583 | Triple S Oil Company | | Oil & Gas Operator | Feb 1979 |
| 1584 | Triple S Well Se | | Oil Operator | Dec 1996 |
| 1585 | Triple Seven, Inc. | Oklahoma City, OK 73132 | Oil & Gas Operator | Nov 1997 |
| 1586 | Triple Singleton, Inc. | Santa Fe, TX 77510 | Oil & Gas Operator | Dec 2020 |
| 1587 | Triple T Oil, LLC | Louisburg, KS 66053 | Oil Operator | May 2026 |
| 1588 | Triple T Pipelines, Inc. | Frontenac, KS 66763 | Oil & Gas Operator | May 2026 |
| 1589 | Triple T Resources, LP | Dallas, TX 75205 | Oil & Gas Operator | May 2026 |
| 1590 | Triple W Oil Inc | Chandler, OK 74834-0546 | Oil & Gas Operator | May 2013 |
| 1591 | Triple-T Pipelin | | Oil & Gas Operator | Oct 1995 |
| 1592 | Tripledee Drilling Co Inc | Ardmore, OK 73402-1888 | Oil & Gas Operator | Dec 2015 |
| 1593 | Tripledee Operating Company LLC | Ardmore, OK 73401 | Oil & Gas Operator | Nov 2022 |
| 1594 | Triplett Larry W | Oklahoma City, OK 73112-5325 | Oil & Gas Operator | Mar 2015 |
| 1595 | Tripod Oil And Gas 3 LLC | Tulsa, OK 74152 | Oil Operator | Sep 2026 |
| 1596 | Tripower Resources LLC | Ardmore, OK 73402 | Oil & Gas Operator | Sep 2026 |
| 1597 | Tripower Resources, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2020 |
| 1598 | Tripp & Sons, LLC | Odessa, TX 79768 | Oil & Gas Operator | Sep 2026 |
| 1599 | Trissell Alva Lee | Willow, OK 73673-9602 | Oil Operator | Apr 2020 |
| 1600 | Tristar Energy 1 | | Oil Operator | Sep 1987 |