# Relationship history for MSHA mine 1517816

Current hierarchy: **James River Coal Company → Leeco Incorporated → #78**

- 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:** Henry  Chaney Jr → #78; 1977-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James River Coal Company → #78; 1995-06-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Elkhorn Eagle Mining Company Inc → #78; 1996-07-01 to 2001-01-25; source msha-controller-operator-history
- **controller_controls_operator:** Henry  Chaney Jr → Elkhorn Eagle Mining Company Inc; 1996-07-01 to 2001-01-25; source msha-controller-operator-history
- **operator_operates_mine:** Elkhorn Eagle Mining Company Inc → #78; 2001-01-26 to 2001-03-28; source msha-controller-operator-history
- **controller_controls_mine:** James River Coal Company → #78; 2001-01-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James River Coal Company → Elkhorn Eagle Mining Company Inc; 2001-01-26 to 2001-03-28; source msha-controller-operator-history
- **operator_operates_mine:** Leeco Incorporated → #78; 2001-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James River Coal Company → Leeco Incorporated; 2001-03-29 to current/open; source msha-controller-operator-history