# Relationship history for MSHA mine 1519314

Current hierarchy: **James River Coal Company → McCoy Elkhorn Coal Corporation → Mine No. 12**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** James River Coal Company → Mine No. 12; 1988-09-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** McCoy Elkhorn Coal Corp → Mine No. 12; 2008-09-16 to 2010-04-25; source msha-controller-operator-history
- **controller_controls_operator:** James River Coal Company → McCoy Elkhorn Coal Corp; 2008-09-16 to 2010-04-25; source msha-controller-operator-history
- **operator_operates_mine:** GR Mining Inc → Mine No. 12; 2010-04-26 to 2012-07-15; source msha-controller-operator-history
- **controller_controls_mine:** Randy  Gilkerson et al → Mine No. 12; 2010-04-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randy  Gilkerson et al → GR Mining Inc; 2010-04-26 to 2012-07-15; source msha-controller-operator-history
- **operator_operates_mine:** McCoy Elkhorn Coal Corporation → Mine No. 12; 2012-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James River Coal Company → McCoy Elkhorn Coal Corporation; 2012-07-16 to current/open; source msha-controller-operator-history