Mustang Express Pipeline is a new natural gas pipeline project by Arm Energy Holdings LLC in TX. It is approved but not yet under construction. Stated capacity is 2.5 Bcf/d. In-service timing is listed by EIA as 2029. Source: EIA's pipeline project tracker. Last verified by Enercast on Nov 11, 2026.
EIA only. So far the only source for this project is EIA’s pipeline project tracker, which lists a year, not a date, and can lag. Nothing here has yet been checked against a FERC filing or the sponsor.
| Status | Approved | EIA, dated Jul 6, 2026 |
|---|---|---|
| Capacity | 2.5 Bcf/d stated | EIA, dated Jul 6, 2026 |
| In-service timing | 2029 EIA-listed year | EIA, dated Jul 6, 2026 |
| Operator | Arm Energy Holdings LLC | EIA, dated Jul 6, 2026 |
| Project type | New Pipeline | EIA, dated Jul 6, 2026 |
| States | TX | EIA, dated Jul 6, 2026 |
| Length | 236 miles | EIA, dated Jul 6, 2026 |
| Jurisdiction | Intrastate · TX RRC | EIA, dated Jul 6, 2026 |
| State permit | T4-10624 | EIA, dated Jul 6, 2026 |
| Demand served | LNG | EIA, dated Jul 6, 2026 |
| Last verified | Nov 11, 2026 | all sources fetched |
Capacity and in-service timing are what the source states. None is measured or forecast by Enercast. How to read this page.
Milestones
No dated milestones recorded yet. They are added as FERC orders, construction authorizations and in-service notices appear.
Change log
No changes since this project was first listed on Nov 10, 2026.