# Relationship history for MSHA mine 1512128

Current hierarchy: **Homer  Newsome → Poochie Coal Company → No 1 Mine**

- 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:** Childers Energy Company Inc → No 1 Mine; 1979-10-01 to 1980-08-19; source msha-controller-operator-history
- **controller_controls_mine:** Childers George → No 1 Mine; 1979-10-01 to 1980-08-19; source msha-controller-operator-history
- **controller_controls_operator:** Childers George → Childers Energy Company Inc; 1979-10-01 to 1980-08-19; source msha-controller-operator-history
- **operator_operates_mine:** Poochie Coal Company → No 1 Mine; 1980-08-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Homer  Newsome → No 1 Mine; 1980-08-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Homer  Newsome → Poochie Coal Company; 1980-08-20 to current/open; source msha-controller-operator-history