# Relationship history for MSHA mine 3608344

Current hierarchy: **John P  Matey → Mon River Energy Corp → Brier Hill**

- 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:** Mon River Energy Corp → Brier Hill; 1992-01-01 to 1992-08-13; source msha-controller-operator-history
- **controller_controls_mine:** Aloe Eugene R → Brier Hill; 1992-01-01 to 1992-08-13; source msha-controller-operator-history
- **controller_controls_operator:** Aloe Eugene R → Mon River Energy Corp; 1992-01-01 to 1992-08-13; source msha-controller-operator-history
- **operator_operates_mine:** Mon River Energy Corp → Brier Hill; 1992-08-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John P  Matey → Brier Hill; 1992-08-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John P  Matey → Mon River Energy Corp; 1992-08-14 to current/open; source msha-controller-operator-history