# Relationship history for MSHA mine 4703948

Current hierarchy: **Jill M Hockers; Patrick J Hockers → Hockers Excavating, Inc. → Hockers 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:** Hockers Excavating Inc. → Hockers Pit; 2023-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Patrick J Hockers et al → Hockers Pit; 2023-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patrick J Hockers et al → Hockers Excavating Inc.; 2023-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jill M Hockers et al → Hockers Excavating Inc.; 2023-08-28 to current/open; source msha-controller-operator-history