| 1601 | Aztec Drilling & Operating, LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2015 |
| 1602 | Aztec Energy, LLC | Wichita Falls, TX 76301 | Oil Operator | Apr 2026 |
| 1603 | Aztec Exploration Inc | Oklahoma City, OK 73143 | Oil & Gas Operator | May 2013 |
| 1604 | Aztec Gas And Oil Corporation | Elephant Butte, NM 87935-0370 | Oil & Gas Operator | Mar 2005 |
| 1605 | Aztec Oil & Gas Company | | Oil & Gas Operator | Mar 1978 |
| 1606 | Aztec Oil & Gas Company "A" | Wichita Falls, TX 76309 | Oil & Gas Operator | Sep 2010 |
| 1607 | Aztec Oil Co | | Oil & Gas Operator | Dec 1977 |
| 1608 | Aztec Oil Operating LLC | El Dorado, KS 67042 | Oil & Gas Operator | Dec 2025 |
| 1609 | Aztec Producing Company Inc | | Oil & Gas Operator | May 2022 |
| 1610 | Aztec Production Company | | Oil & Gas Operator | Jan 1996 |
| 1611 | Azteca Operating, Inc. | Electra, TX 76360 | Oil Operator | Apr 2026 |
| 1612 | Azteca Petroleum, LLC | Fort Worth, TX 76106 | Oil & Gas Operator | Apr 2026 |
| 1613 | Aztel Operating Inc. | Windthorst, TX 76389 | Oil Operator | Oct 2003 |
| 1614 | Aztex Petroleum | Chandler, AZ 85249 | Oil & Gas Operator | Apr 2026 |
| 1615 | Azul Operating, LLC | | Gas Operator | Dec 2024 |
| 1616 | Azul, Inc. | Buffalo Gap, TX 79508 | Oil & Gas Operator | Aug 1995 |
| 1617 | Azure Energy LTD | Tulsa, OK 74135-7825 | Oil & Gas Operator | Feb 2026 |