# Relationship history for MSHA mine 4406155

Current hierarchy: **Compton William → Neece Creek Coal Company Inc → 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:** Coleman Dennis S & Shannon → No 2 Mine; 1984-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bear Branch Fuel Corp → No 2 Mine; 1984-11-01 to 1986-12-07; source msha-controller-operator-history
- **controller_controls_operator:** Coleman Dennis S & Shannon → Bear Branch Fuel Corp; 1984-11-01 to 1986-12-07; source msha-controller-operator-history
- **operator_operates_mine:** Neece Creek Coal Company Inc → No 2 Mine; 1986-12-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Compton William → No 2 Mine; 1986-12-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Compton William → Neece Creek Coal Company Inc; 1986-12-08 to current/open; source msha-controller-operator-history