Gas transmission pipeline · Maryland, Pennsylvania to West Virginia
Mountaineer Gas Pipeline
Mountaineer Gas Pipeline is an operating gas transmission pipeline in United States. The tracker lists 1 tracked segment, 5 km long and 48.55 bcm/y of capacity, starting up in 2025. It runs from Maryland, Pennsylvania to West Virginia. It is owned by Columbia Gas Transmission LLC.
Length
5.5 km
Capacity
48.5 bcm/y
35.7 Mtpa LNG equivalent
Segments tracked
1
Largest diameter 203 mm (8.0 in)
Route
Mountaineer Gas Pipeline runs from Maryland, Pennsylvania to West Virginia. The map draws the tracked route and any LNG terminal within 25 km of it.
Loads about 250 kB of map code and the country outline file.
- From
- Maryland, Pennsylvania
- To
- West Virginia
- Start country
- United States
- End country
- United States
- Countries crossed
- United States
- Onshore / offshore
- Not reported
- Fuel
- Gas
- Region
- Not reported
- Route drawn on map
- 5.4 km
- GEM pipeline ID
- P2009
- Start year
- 2025
- GEM wiki page
- gem.wiki
Segments
Each row is one row of GEM's pipeline file. Project-level figures repeated on every segment are counted once in the totals above.
| Segment | Status | From → to | Length | Capacity | Diameter | Start | Route from |
|---|---|---|---|---|---|---|---|
| Phase III (Eastern Panhandle Expansion Project) | Operating | Maryland, Pennsylvania → West Virginia | 5.5 | 48.5 | 203 mm | 2025 | GEM's route file |
Connected LNG terminals
Terminals whose coordinates fall within 25 km of this route, or whose name matches the pipeline. Proximity is not proof of a physical connection.
No tracked LNG terminal lies within 25 km of this pipeline's route.
Owners and operators
Stakes as reported by GEM per segment, merged across segments.
Owners
Parent companies
In the news
Recent headlines that name Mountaineer Gas Pipeline. Matched by name, so it is approximate. Titles and links only; we store no article text.
Common questions
Generated from the same tracker fields as the tables above, so the two cannot disagree. Each answer stands on its own.
- Where does Mountaineer Gas Pipeline run?
- Mountaineer Gas Pipeline runs from Maryland, Pennsylvania to West Virginia, crossing United States.
- How long is Mountaineer Gas Pipeline?
- Mountaineer Gas Pipeline is 5.5 km long.
- How much gas can Mountaineer Gas Pipeline carry?
- Mountaineer Gas Pipeline has a design capacity of 48.5 bcm/y. Where every segment of a project repeats the same figure it is counted once rather than summed.
- Is Mountaineer Gas Pipeline operating?
- Mountaineer Gas Pipeline is operating, having started in 2025.
- Who owns Mountaineer Gas Pipeline?
- Mountaineer Gas Pipeline is owned by Columbia Gas Transmission LLC, as recorded in the current tracker release.
More gas pipelines in United States
Listed in name order among the 515 pipelines tracked in United States, so projects with the same name sit together. A browse aid, not a claim that they are alike.
Cite this page
Reuse is welcome; please name the page and the tracker release it draws on.