# Relationship history for MSHA mine 1505230

Current hierarchy: **Alliance Resource Partners LP → Warrior Coal Llc → No 1-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:** Roberts Brothers Coal Company Inc → No 1-Tipple; 1950-01-01 to 2001-01-26; source msha-controller-operator-history
- **controller_controls_mine:** Paul E  Roberts et al → No 1-Tipple; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul E  Roberts et al → Roberts Brothers Coal Company Inc; 1950-01-01 to 2001-01-26; source msha-controller-operator-history
- **operator_operates_mine:** Warrior Coal Llc → No 1-Tipple; 2001-01-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Alliance Resource Partners LP → No 1-Tipple; 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