# Relationship history for MSHA mine 1202268

Current hierarchy: **James River Coal Company → Triad Mining Inc → LYONS MINE**

- 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:** Joe  Aull et al → LYONS MINE; 1991-04-01 to 2005-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Triad Mining Inc → LYONS MINE; 2000-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joe  Aull et al → Triad Mining Inc; 2000-02-01 to 2005-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Timothy R  Aull et al → Triad Mining Inc; 2000-02-01 to 2005-05-31; source msha-controller-operator-history
- **controller_controls_mine:** James River Coal Company → LYONS MINE; 2005-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James River Coal Company → Triad Mining Inc; 2005-06-01 to current/open; source msha-controller-operator-history