| 1 | LIBERTY UTILITIES (PEACH STATE NATURAL GAS)… | $85,788,727 | 1 | $85,788,727 | Sep 27, 2001 | Department of Defense |
| 2 | WASHINGTON GAS LIGHT COMPANY | $77,269,744 | 10 | $7,726,974 | Jun 26, 2026 | Department of Health and … |
| 3 | ATLANTA GAS LIGHT COMPANY | $52,115,714 | 1 | $52,115,714 | Mar 16, 2026 | Department of Homeland Se… |
| 4 | ENSTAR NATURAL GAS COMPANY, LLC | $46,512,480 | 1 | $46,512,480 | Jan 01, 2020 | Department of Defense |
| 5 | SOUTHERN COMPANY GAS | $34,248,856 | 4 | $8,562,214 | Jun 29, 2022 | General Services Administ… |
| 6 | NAVAJO TRIBAL UTILITY AUTHORITY | $27,866,929 | 13 | $2,143,610 | Jun 27, 2024 | Department of the Interior |
| 7 | PEOPLES GAS SYSTEM, INC | $26,589,322 | 2 | $13,294,661 | Dec 08, 2015 | Department of Defense |
| 8 | SCHUYLER LINE NAVIGATION COMPANY LLC | $21,814,253 | 1 | $21,814,253 | Jul 11, 2025 | Department of Defense |
| 9 | CONSTELLATION NEWENERGY - GAS DIVISION, LLC | $20,787,389 | 3 | $6,929,130 | Apr 01, 2026 | Department of Health and … |
| 10 | PIEDMONT NATURAL GAS COMPANY, INC. | $19,822,214 | 1 | $19,822,214 | Sep 26, 2013 | Department of Defense |
| 11 | CITY OF PHILADELPHIA | $17,867,048 | 4 | $4,466,762 | Oct 01, 2025 | Department of Justice |
| 12 | GAS SOUTH, LLC | $12,707,943 | 3 | $4,235,981 | Aug 01, 2025 | Department of Veterans Af… |