# Relationship history for MSHA mine 1512394

Current hierarchy: **Clark Greg & Charles D Hunt → Jessie-Jen Coal Corp Inc → No 2 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:** Paramount Carbon Coal Corp → No 2 Mine; 1980-06-01 to 1982-03-01; source msha-controller-operator-history
- **controller_controls_mine:** Hess Jimmie Leon Et Al → No 2 Mine; 1980-06-01 to 1982-03-01; source msha-controller-operator-history
- **controller_controls_operator:** Hess Jimmie Leon Et Al → Paramount Carbon Coal Corp; 1980-06-01 to 1982-03-01; source msha-controller-operator-history
- **controller_controls_mine:** Slone Carl → No 2 Mine; 1982-01-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** R D C Coal Inc → No 2 Mine; 1982-03-02 to 1987-03-26; source msha-controller-operator-history
- **controller_controls_operator:** Slone Carl → R D C Coal Inc; 1982-03-02 to 1987-03-26; source msha-controller-operator-history
- **controller_controls_mine:** Clark Greg & Charles D Hunt → No 2 Mine; 1986-04-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jessie-Jen Coal Corp Inc → No 2 Mine; 1987-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clark Greg & Charles D Hunt → Jessie-Jen Coal Corp Inc; 1987-03-27 to current/open; source msha-controller-operator-history