# Relationship history for MSHA mine 1512865

Current hierarchy: **Sowders Charles → Cee Jay 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

- **controller_controls_mine:** Warren Michael → No 2 Mine; 1981-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Energy Ventures Corp → No 2 Mine; 1981-06-01 to 1982-07-07; source msha-controller-operator-history
- **controller_controls_operator:** Warren Michael → Energy Ventures Corp; 1981-06-01 to 1982-07-07; source msha-controller-operator-history
- **operator_operates_mine:** Micdale Coal Company Inc → No 2 Mine; 1982-07-08 to 1983-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Stone Dale → No 2 Mine; 1982-07-08 to 1983-03-14; source msha-controller-operator-history
- **controller_controls_operator:** Stone Dale → Micdale Coal Company Inc; 1982-07-08 to 1983-03-14; source msha-controller-operator-history
- **operator_operates_mine:** Cee Jay Inc → No 2 Mine; 1983-03-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sowders Charles → No 2 Mine; 1983-03-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sowders Charles → Cee Jay Inc; 1983-03-15 to current/open; source msha-controller-operator-history