# Relationship history for MSHA mine 0102918

Current hierarchy: **Terrence  Gallagher → Har Gal Mining Partnership → Har Gal Mining**

- 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:** Har Gal Mining Partnership → Har Gal Mining; 1991-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Terrence  Gallagher et al → Har Gal Mining; 1991-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Terrence  Gallagher et al → Har Gal Mining Partnership; 1991-06-01 to current/open; source msha-controller-operator-history