# Relationship history for MSHA mine 4605746

Current hierarchy: **Bane William H → Strawberry Energy Corp → #1 Tipple**

- 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:** Barnhill Robert E Sr → #1 Tipple; 1974-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Winkelman Dwight W → #1 Tipple; 1974-07-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Energy Producers Inc → #1 Tipple; 1978-02-01 to 1978-10-02; source msha-controller-operator-history
- **controller_controls_operator:** Barnhill Robert E Sr → Energy Producers Inc; 1978-02-01 to 1978-10-02; source msha-controller-operator-history
- **controller_controls_mine:** Coventry Energy Corp → #1 Tipple; 1978-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ellison Coal Company Inc → #1 Tipple; 1978-10-03 to 1979-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Coventry Energy Corp → Ellison Coal Company Inc; 1978-10-03 to 1979-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Craig Contractors Inc → #1 Tipple; 1979-10-01 to 1980-12-08; source msha-controller-operator-history
- **controller_controls_operator:** Winkelman Dwight W → Craig Contractors Inc; 1979-10-01 to 1980-12-08; source msha-controller-operator-history
- **operator_operates_mine:** Strawberry Energy Corp → #1 Tipple; 1980-12-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bane William H → #1 Tipple; 1980-12-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bane William H → Strawberry Energy Corp; 1980-12-09 to current/open; source msha-controller-operator-history