# Relationship history for MSHA mine 1504009

Current hierarchy: **Vance Michael → Triway Mining Inc → No 3**

- 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:** Velocity Coal Corp → No 3; 1950-01-01 to 1982-06-01; source msha-controller-operator-history
- **controller_controls_mine:** Mollett Clarence → No 3; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mollett Clarence → Velocity Coal Corp; 1950-01-01 to 1982-06-01; source msha-controller-operator-history
- **controller_controls_mine:** Tackett Sterling & Michael Vance → No 3; 1978-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Triway Mining Inc → No 3; 1982-06-02 to 1986-06-15; source msha-controller-operator-history
- **controller_controls_operator:** Tackett Sterling & Michael Vance → Triway Mining Inc; 1982-06-02 to 1986-06-15; source msha-controller-operator-history
- **operator_operates_mine:** Triway Mining Inc → No 3; 1986-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Vance Michael → No 3; 1986-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vance Michael → Triway Mining Inc; 1986-06-16 to current/open; source msha-controller-operator-history