# Relationship history for MSHA mine 4405965

Current hierarchy: **Browning Mike → Wolfpen Coal Company → #4 Strip Job**

- 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:** Wolfpen Coal Company → #4 Strip Job; 1982-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Browning Mike → #4 Strip Job; 1982-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Browning Mike → Wolfpen Coal Company; 1982-11-01 to current/open; source msha-controller-operator-history