# Relationship history for MSHA mine 2302380

Current hierarchy: **Pitman H  Miller → Pits Dozing Inc → TERRILL**

- 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:** O'Brien Industrial Holdings LLC → TERRILL; 2002-07-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** CHRISTY MINERALS LLC → TERRILL; 2008-06-15 to 2009-09-30; source msha-controller-operator-history
- **controller_controls_operator:** O'Brien Industrial Holdings LLC → CHRISTY MINERALS LLC; 2008-06-15 to 2009-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Pitman H  Miller → TERRILL; 2009-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pits Dozing Inc → TERRILL; 2009-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pitman H  Miller → Pits Dozing Inc; 2009-10-01 to current/open; source msha-controller-operator-history