# Relationship history for MSHA mine 4405122

Current hierarchy: **Pennington John → J O J Coal Company Inc → Mine No 1**

- 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:** Horsepen Coal Company Inc → Mine No 1; 1978-07-01 to 1980-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Pennington John Et Al → Mine No 1; 1978-07-01 to 1980-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Pennington John Et Al → Horsepen Coal Company Inc; 1978-07-01 to 1980-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Double Dimond Coal Company Inc → Mine No 1; 1980-10-01 to 1983-05-10; source msha-controller-operator-history
- **controller_controls_mine:** Gipson James M → Mine No 1; 1980-10-01 to 1983-05-10; source msha-controller-operator-history
- **controller_controls_operator:** Gipson James M → Double Dimond Coal Company Inc; 1980-10-01 to 1983-05-10; source msha-controller-operator-history
- **operator_operates_mine:** J O J Coal Company Inc → Mine No 1; 1983-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pennington John Et Al → Mine No 1; 1983-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pennington John Et Al → J O J Coal Company Inc; 1983-05-11 to current/open; source msha-controller-operator-history