# Relationship history for MSHA mine 1514335

Current hierarchy: **Alliance Resource Partners LP → Warrior Coal, LLC → Warrior Preparation Plant**

- 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:** Warrior Coal Mining Company → Warrior Preparation Plant; 1983-11-01 to 1987-03-31; source msha-controller-operator-history
- **controller_controls_mine:** William D  Donan → Warrior Preparation Plant; 1983-11-01 to 1987-03-31; source msha-controller-operator-history
- **controller_controls_operator:** William D  Donan → Warrior Coal Mining Company; 1983-11-01 to 1987-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Warrior Coal Mining Company → Warrior Preparation Plant; 1987-04-01 to 2001-01-26; source msha-controller-operator-history
- **controller_controls_mine:** Paul E  Roberts et al → Warrior Preparation Plant; 1987-04-01 to 2001-01-26; source msha-controller-operator-history
- **controller_controls_operator:** Paul E  Roberts et al → Warrior Coal Mining Company; 1987-04-01 to 2001-01-26; source msha-controller-operator-history
- **operator_operates_mine:** Warrior Coal, LLC → Warrior Preparation Plant; 2001-01-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Alliance Resource Partners LP → Warrior Preparation Plant; 2001-01-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alliance Resource Partners LP → Warrior Coal, LLC; 2001-01-27 to current/open; source msha-controller-operator-history