# Relationship history for MSHA mine 1515792

Current hierarchy: **Charles E  Mc Cullah → Bowling Mountain Coal Inc → Bowling Mountain #3**

- 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:** Charles E  Mc Cullah → Bowling Mountain #3; 1986-04-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rains Coal Company → Bowling Mountain #3; 1986-10-01 to 1987-02-26; source msha-controller-operator-history
- **controller_controls_mine:** Rains Ronal → Bowling Mountain #3; 1986-10-01 to 1987-02-26; source msha-controller-operator-history
- **controller_controls_operator:** Rains Ronal → Rains Coal Company; 1986-10-01 to 1987-02-26; source msha-controller-operator-history
- **operator_operates_mine:** Bowling Mountain Coal Inc → Bowling Mountain #3; 1987-02-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles E  Mc Cullah → Bowling Mountain Coal Inc; 1987-02-27 to current/open; source msha-controller-operator-history