# Relationship history for MSHA mine 4601995

Current hierarchy: **Pittston Company → Dante Coal Company → Badger No 15 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Badger Coal Company → Badger No 15 Mine; 1950-01-01 to 1979-07-29; source msha-controller-operator-history
- **controller_controls_mine:** Pittston Company → Badger No 15 Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pittston Company → Badger Coal Company; 1950-01-01 to 1979-07-29; source msha-controller-operator-history
- **controller_controls_mine:** Barnes Charles → Badger No 15 Mine; 1979-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Balar Coal Company → Badger No 15 Mine; 1979-07-30 to 1981-04-28; source msha-controller-operator-history
- **controller_controls_operator:** Barnes Charles → Balar Coal Company; 1979-07-30 to 1981-04-28; source msha-controller-operator-history
- **operator_operates_mine:** Badger Coal Company → Badger No 15 Mine; 1981-04-29 to 1982-02-15; source msha-controller-operator-history
- **controller_controls_operator:** Pittston Company → Badger Coal Company; 1981-04-29 to 1982-02-15; source msha-controller-operator-history
- **operator_operates_mine:** Mountaineer Mining Contractors Inc → Badger No 15 Mine; 1982-02-16 to 1982-11-14; source msha-controller-operator-history
- **controller_controls_mine:** Schifano Larry → Badger No 15 Mine; 1982-02-16 to 1982-11-14; source msha-controller-operator-history
- **controller_controls_operator:** Schifano Larry → Mountaineer Mining Contractors Inc; 1982-02-16 to 1982-11-14; source msha-controller-operator-history
- **operator_operates_mine:** Dante Coal Company → Badger No 15 Mine; 1982-11-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pittston Company → Dante Coal Company; 1982-11-15 to current/open; source msha-controller-operator-history