# Relationship history for MSHA mine 0400351

Current hierarchy: **Allan E  Bankus → Painted Hills Mining Company → Painted Hills Quarry**

- 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:** Whitewater Rock & Supply Co → Painted Hills Quarry; 1950-01-01 to 2011-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Allan E  Bankus → Painted Hills Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Allan E  Bankus → Whitewater Rock & Supply Co; 1950-01-01 to 2011-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Painted Hills Mining Company → Painted Hills Quarry; 2011-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Allan E  Bankus → Painted Hills Quarry; 2011-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Allan E  Bankus → Painted Hills Mining Company; 2011-07-01 to current/open; source msha-controller-operator-history