# Relationship history for MSHA mine 5000351

Current hierarchy: **Mohawk Oil Company Ltd → Mohawk Oil & Gas Inc → Fox Mill**

- 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:** Two Wolves Mining & Milling Company → Fox Mill; 1950-01-01 to 1979-08-04; source msha-controller-operator-history
- **controller_controls_mine:** Doring Dick & Bill Townsend → Fox Mill; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Doring Dick & Bill Townsend → Two Wolves Mining & Milling Company; 1950-01-01 to 1979-08-04; source msha-controller-operator-history
- **controller_controls_mine:** Silverado Gold Mines Ltd → Fox Mill; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tri-Con Mining Incorporated → Fox Mill; 1979-08-05 to 1981-08-27; source msha-controller-operator-history
- **controller_controls_operator:** Silverado Gold Mines Ltd → Tri-Con Mining Incorporated; 1979-08-05 to 1981-08-27; source msha-controller-operator-history
- **operator_operates_mine:** Mohawk Oil & Gas Inc → Fox Mill; 1981-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mohawk Oil Company Ltd → Fox Mill; 1981-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mohawk Oil Company Ltd → Mohawk Oil & Gas Inc; 1981-08-28 to current/open; source msha-controller-operator-history