# Relationship history for MSHA mine 1514517

Current hierarchy: **Cardinal Resources Inc → Cardinal Resources Inc → Mine #23**

- 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:** Cardinal Resources Inc → Mine #23; 1978-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kennie Ray  Childers → Mine #23; 1983-08-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kerri-Dawn Coal Company Inc → Mine #23; 1984-03-01 to 1985-06-24; source msha-controller-operator-history
- **controller_controls_operator:** Kennie Ray  Childers → Kerri-Dawn Coal Company Inc; 1984-03-01 to 1985-06-24; source msha-controller-operator-history
- **operator_operates_mine:** Cardinal Resources Inc → Mine #23; 1985-06-25 to 1985-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Cardinal Resources Inc → Cardinal Resources Inc; 1985-06-25 to 1985-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Coon Creek Coal Company Inc → Mine #23; 1985-10-01 to 1986-09-25; source msha-controller-operator-history
- **controller_controls_mine:** Logan Matthew A → Mine #23; 1985-10-01 to 1986-09-25; source msha-controller-operator-history
- **controller_controls_operator:** Logan Matthew A → Coon Creek Coal Company Inc; 1985-10-01 to 1986-09-25; source msha-controller-operator-history
- **operator_operates_mine:** Cardinal Resources Inc → Mine #23; 1986-09-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cardinal Resources Inc → Cardinal Resources Inc; 1986-09-26 to current/open; source msha-controller-operator-history