# Relationship history for MSHA mine 4606277

Current hierarchy: **Fazenbaker Paul F Sr → Fork Lick Coal Processors Inc → Beaver Run 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

- **controller_controls_mine:** Beasley Industries Inc & John Mc Call Coal Co Inc → Beaver Run Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Spring Ridge Coal Company → Beaver Run Mine; 1980-12-01 to 1982-11-21; source msha-controller-operator-history
- **controller_controls_operator:** Beasley Industries Inc & John Mc Call Coal Co Inc → Spring Ridge Coal Company; 1980-12-01 to 1982-11-21; source msha-controller-operator-history
- **operator_operates_mine:** Spring Ridge Coal Company → Beaver Run Mine; 1982-11-22 to 1983-08-21; source msha-controller-operator-history
- **controller_controls_mine:** Mc Call-John Coal Company Inc → Beaver Run Mine; 1982-11-22 to 1988-12-08; source msha-controller-operator-history
- **controller_controls_operator:** Mc Call-John Coal Company Inc → Spring Ridge Coal Company; 1982-11-22 to 1983-08-21; source msha-controller-operator-history
- **operator_operates_mine:** Fork Lick Coal Processors Inc → Beaver Run Mine; 1983-08-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Fazenbaker Paul F Sr → Beaver Run Mine; 1983-08-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fazenbaker Paul F Sr → Fork Lick Coal Processors Inc; 1983-08-22 to current/open; source msha-controller-operator-history