# Relationship history for MSHA mine 3302916

Current hierarchy: **Goeglein Albert-Charles & Avery → Goeglein Coal Company → Arabia Strip**

- 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:** Goeglein Albert-Charles & Avery → Arabia Strip; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Goeglein Coal Company → Arabia Strip; 1973-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Goeglein Albert-Charles & Avery → Goeglein Coal Company; 1973-06-01 to current/open; source msha-controller-operator-history