# Relationship history for MSHA mine 4406064

Current hierarchy: **Van Dyke Malcolm E → Triple M Production Corp → No 2 Strip & Auger**

- 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:** Pinon Mesa Mining Corp → No 2 Strip & Auger; 1984-03-01 to 1984-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Cantrell Darell → No 2 Strip & Auger; 1984-03-01 to 1984-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Cantrell Darell → Pinon Mesa Mining Corp; 1984-03-01 to 1984-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Triple M Production Corp → No 2 Strip & Auger; 1984-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Van Dyke Malcolm E → No 2 Strip & Auger; 1984-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Van Dyke Malcolm E → Triple M Production Corp; 1984-11-01 to current/open; source msha-controller-operator-history