# Relationship history for MSHA mine 4405055

Current hierarchy: **Stevenson David & Leon → Bandit Mining Corp → No 2 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:** Preece-Mc Clanahan & Belcher Coal Company Inc → No 2 Mine; 1974-01-01 to 1980-09-17; source msha-controller-operator-history
- **controller_controls_mine:** Owens Jack → No 2 Mine; 1977-10-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** P M & B Coal Company Inc → No 2 Mine; 1978-06-01 to 1980-09-17; source msha-controller-operator-history
- **controller_controls_operator:** Preece-Mc Clanahan & Belcher Coal Company Inc → P M & B Coal Company Inc; 1978-06-01 to 1980-09-17; source msha-controller-operator-history
- **controller_controls_mine:** Stevenson David & Leon → No 2 Mine; 1979-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** H & T Coal Company Inc → No 2 Mine; 1980-09-18 to 1982-02-17; source msha-controller-operator-history
- **controller_controls_operator:** Owens Jack → H & T Coal Company Inc; 1980-09-18 to 1982-02-17; source msha-controller-operator-history
- **operator_operates_mine:** Bandit Mining Corp → No 2 Mine; 1982-02-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stevenson David & Leon → Bandit Mining Corp; 1982-02-18 to current/open; source msha-controller-operator-history