# Relationship history for MSHA mine 2602189

Current hierarchy: **Blaine J  Rees → BJ Rees's Enterprise → Sisk Job**

- 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

- **controller_controls_mine:** Blaine J  Rees → Sisk Job; 1984-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rees'S Enterprise → Sisk Job; 1991-06-01 to 2011-04-28; source msha-controller-operator-history
- **controller_controls_operator:** Blaine J  Rees → Rees'S Enterprise; 1991-06-01 to 2011-04-28; source msha-controller-operator-history
- **controller_controls_mine:** Blaine J  Rees → Sisk Job; 2000-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** BJ Rees's Enterprise → Sisk Job; 2011-04-29 to 2025-07-27; source msha-controller-operator-history
- **controller_controls_operator:** Blaine J  Rees → BJ Rees's Enterprise; 2011-04-29 to 2025-07-27; source msha-controller-operator-history
- **operator_operates_mine:** BJ Rees's Enterprise → Sisk Job; 2025-07-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Blaine J  Rees → Sisk Job; 2025-07-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Blaine J  Rees → BJ Rees's Enterprise; 2025-07-28 to current/open; source msha-controller-operator-history