# Relationship history for MSHA mine 1515138

Current hierarchy: **James River Coal Company → McCoy Elkhorn Coal Corp. → Mine #25**

- 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

- **operator_operates_mine:** Mayflower Coal Company Inc → Mine #25; 1985-04-01 to 1990-05-28; source msha-controller-operator-history
- **controller_controls_mine:** Mc Coy Sherman → Mine #25; 1985-04-01 to 1990-05-28; source msha-controller-operator-history
- **controller_controls_operator:** Mc Coy Sherman → Mayflower Coal Company Inc; 1985-04-01 to 1990-05-28; source msha-controller-operator-history
- **controller_controls_mine:** James River Coal Company → Mine #25; 1988-09-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Infinity Coal Corp → Mine #25; 1989-03-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hickory Hill Development Corp → Mine #25; 1990-05-29 to 1990-08-23; source msha-controller-operator-history
- **controller_controls_operator:** Infinity Coal Corp → Hickory Hill Development Corp; 1990-05-29 to 1990-08-23; source msha-controller-operator-history
- **operator_operates_mine:** Joe'S Creek Mining Company Inc → Mine #25; 1990-08-24 to 2005-05-22; source msha-controller-operator-history
- **controller_controls_mine:** Childers Spencer & Wesley → Mine #25; 1990-08-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Childers Spencer & Wesley → Joe'S Creek Mining Company Inc; 1990-08-24 to 2005-05-22; source msha-controller-operator-history
- **operator_operates_mine:** McCoy Elkhorn Coal Corp. → Mine #25; 2005-05-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James River Coal Company → McCoy Elkhorn Coal Corp.; 2005-05-23 to current/open; source msha-controller-operator-history