# Relationship history for MSHA mine 1516180

Current hierarchy: **Dyer Steve → Tara John Coal Corp Inc → No 2**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Long Branch Mining Company → No 2; 1987-09-01 to 1988-11-13; source msha-controller-operator-history
- **controller_controls_mine:** Breeding Bennett Et Al → No 2; 1987-09-01 to 1988-11-13; source msha-controller-operator-history
- **controller_controls_operator:** Breeding Bennett Et Al → Long Branch Mining Company; 1987-09-01 to 1988-11-13; source msha-controller-operator-history
- **controller_controls_mine:** Dyer Steve → No 2; 1988-06-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tara John Coal Corp Inc → No 2; 1988-11-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dyer Steve → Tara John Coal Corp Inc; 1988-11-14 to current/open; source msha-controller-operator-history