# Relationship history for MSHA mine 4405530

Current hierarchy: **Bill  Stacy → Hollow Point Mining 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Beechnut Mining Corp → No 3 Mine; 1980-10-01 to 1990-03-25; source msha-controller-operator-history
- **controller_controls_mine:** Beller Steve Et Al → No 3 Mine; 1980-10-01 to 1990-03-25; source msha-controller-operator-history
- **controller_controls_operator:** Beller Steve Et Al → Beechnut Mining Corp; 1980-10-01 to 1990-03-25; source msha-controller-operator-history
- **controller_controls_mine:** Bill  Stacy → No 3 Mine; 1989-05-05 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hollow Point Mining Inc → No 3 Mine; 1990-03-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bill  Stacy → Hollow Point Mining Inc; 1990-03-26 to current/open; source msha-controller-operator-history