# Relationship history for MSHA mine 1506345

Current hierarchy: **El Paso Energy Corp → Mc Coy Caney Coal Company → No 3 Tipple**

- 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:** Caney Branch Coal Company Inc → No 3 Tipple; 1950-01-01 to 1980-10-08; source msha-controller-operator-history
- **controller_controls_mine:** Leonard F  McCoy → No 3 Tipple; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Leonard F  McCoy → Caney Branch Coal Company Inc; 1950-01-01 to 1980-10-08; source msha-controller-operator-history
- **operator_operates_mine:** Mc Coy Caney Coal Company → No 3 Tipple; 1980-10-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** El Paso Energy Corp → No 3 Tipple; 1980-10-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** El Paso Energy Corp → Mc Coy Caney Coal Company; 1980-10-09 to current/open; source msha-controller-operator-history