# Relationship history for MSHA mine 1507249

Current hierarchy: **Bill R  Wallace; Goebel  Zeller → Faith Coal Sales Inc → No 3 Mine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Deskins Jack D → No 3 Mine; 1974-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Triple B Coal Company Inc → No 3 Mine; 1974-08-05 to 1975-06-09; source msha-controller-operator-history
- **controller_controls_mine:** Bartley Clinton → No 3 Mine; 1974-08-05 to 1975-06-09; source msha-controller-operator-history
- **controller_controls_operator:** Bartley Clinton → Triple B Coal Company Inc; 1974-08-05 to 1975-06-09; source msha-controller-operator-history
- **controller_controls_mine:** Goebel  Zeller et al → No 3 Mine; 1974-09-30 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hurricane Elkhorn Coal Corp → No 3 Mine; 1975-06-10 to 1977-03-02; source msha-controller-operator-history
- **controller_controls_operator:** Deskins Jack D → Hurricane Elkhorn Coal Corp; 1975-06-10 to 1977-03-02; source msha-controller-operator-history
- **operator_operates_mine:** Faith Coal Sales Inc → No 3 Mine; 1977-03-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Goebel  Zeller et al → Faith Coal Sales Inc; 1977-03-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bill R  Wallace et al → Faith Coal Sales Inc; 1977-03-03 to current/open; source msha-controller-operator-history