Mine · Robertson County, Texas, United States
Calvert Mine
Calvert Mine is a mine in Robertson County, Texas, United States, owned by Itochu International Inc; I Power Investment Inc.
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 |
|---|---|---|
| Location | Robertson County | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Status | Operating (active) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Commodities | lignite (mainly lignite) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Owner | Itochu International Inc; I Power Investment Inc (controls the operator) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Operator | NAES Corporation | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 1,690,587 t/year (in 2025) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 1,923,918 t/year (in 2022) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 1,617,877 t/year (in 2024) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 1,872,109 t/year (in 2021) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 1,808,893 t/year (in 2023) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Employees | 103 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 | 31.1011, -96.6658 | 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.
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Dated facts about this mine from its sources, oldest first.
- Production: 1,872,109 t/year
- Production: 1,923,918 t/year
- Production: 1,808,893 t/year
- Production: 1,617,877 t/year
- Itochu International Inc; I Power Investment Inc on record as owner
- Production: 1,690,587 t/year
Nearby
Within 50 km of this mine: 15 power plants (1 operating, 1,795 MW) and 1 data center, measured from the coordinates in the facts above. The table shows the nearest 4, up to 3 per kind.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Barton Branch IA | Power plant | 200 MW | Planned | 0.2 km |
| Tidwell Prairie II | Power plant | 200 MW | Under construction | 0.2 km |
| Bee Branch IA | Power plant | 200 MW | Planned | 0.4 km |
| OpenAI Stargate Milam | Data center | — | Under construction | 35 km |
Owner, operator and place
Other mines in Texas
Data on this page
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- Epoch AI. Epoch AI data centers, CC BY 4.0.
- MSHA Mines Data Set. MSHA Mines Data Set, Public domain.