# Relationship history for MSHA mine 1507034

Current hierarchy: **Cardinal Resources Inc → Cardinal Resources Inc → Mine No 14**

- 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:** Simpson James W → Mine No 14; 1973-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Skyuka Mining Corp → Mine No 14; 1974-04-01 to 1979-06-07; source msha-controller-operator-history
- **controller_controls_operator:** Simpson James W → Skyuka Mining Corp; 1974-04-01 to 1979-06-07; source msha-controller-operator-history
- **controller_controls_mine:** Cardinal Resources Inc → Mine No 14; 1978-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cardinal Resources Inc → Mine No 14; 1979-06-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cardinal Resources Inc → Cardinal Resources Inc; 1979-06-08 to current/open; source msha-controller-operator-history