# Relationship history for MSHA mine 1001268

Current hierarchy: **Haener Arley → H & H Contractors Inc → Fords Creek Pit**

- 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:** William G Cummings Inc → Fords Creek Pit; 1950-01-01 to 1978-06-27; source msha-controller-operator-history
- **controller_controls_mine:** Cummings William G Inc → Fords Creek Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cummings William G Inc → William G Cummings Inc; 1950-01-01 to 1978-06-27; source msha-controller-operator-history
- **controller_controls_mine:** Haener Arley → Fords Creek Pit; 1978-03-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** H & H Contractors Inc → Fords Creek Pit; 1978-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Haener Arley → H & H Contractors Inc; 1978-06-28 to current/open; source msha-controller-operator-history