Mine · Somerset County, Pennsylvania, United States
Mast Mine
Mast Mine is an idle mine in Somerset County, Pennsylvania, United States, owned by KTRV LLC.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Name in the source | MAST MINE | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Location | Somerset County | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Status | Idle (temporarily idled) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Commodities | coal (mainly coal) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Owner | KTRV LLC (controls the operator) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Operator | Heritage Coal & Natural Resources, LLC | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 132,561 t/year (in 2024) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 40,077 t/year (in 2025) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 258,962 t/year (in 2021) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 342,037 t/year (in 2022) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 249,185 t/year (in 2023) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Employees | 61 people (annual average, in 2025) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Mine type | Surface | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Coordinates | 39.7986, -79.4322 | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
Research on this mine and its owner.Who owns it up to the parent company, its permits, resources and offtake, and an introduction to the owner.
Request researchHow its owner compares
KTRV LLC owns 6 of the 2,675 mines in the United States in our data with a named owner; 54 owners have more. Counts cover the mines in our data that name an owner, holder or operator; an asset with several owners counts for each.
| Owner in United States | Rank | Mines | Share |
|---|---|---|---|
| Alpha Metallurgical Resources Inc | 1st | 56 | 2.1% |
| Sev.en Global Investments a.s. | 2nd | 50 | 1.9% |
| Rosebud Mining Company | 3rd | 40 | 1.5% |
| Martin Marietta Materials Inc | 4th | 29 | 1.1% |
| Metinvest B V | 4th | 29 | 1.1% |
| KTRV LLC | 55th | 6 | 0.22% |
Timeline
Dated facts about this mine from its sources, oldest first.
- KTRV LLC on record as owner
- Production: 258,962 t/year
- Production: 342,037 t/year
- Production: 249,185 t/year
- Production: 132,561 t/year
- Production: 40,077 t/year
Nearby
Within 50 km of this mine: 5 power plants (4,473 MW), measured from the coordinates in the facts above. The table shows the nearest 3.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Fayette Energy Facility | Power plant | 715 MW | Operating | 42 km |
| FirstEnergy Fort Martin Power Station | Power plant | 1,152 MW | Operating | 43 km |
| Hill Top Energy Center, LLC | Power plant | 665 MW | Operating | 44 km |
Owner, operator and place
More from KTRV LLC
- Carlos Surfacemine
- Walker Minemine
- Mt. Zionmine
- Craighead Minemine
- Saylor Minemine
Other mines in Pennsylvania
Data on this page
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- MSHA Mines Data Set. MSHA Mines Data Set, Public domain.