# Relationship history for MSHA mine 4607849

Current hierarchy: **Muncy Danny L → Star Buck Coal Inc → No 22-A**

- 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:** Star Buck Coal Inc → No 22-A; 1990-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Muncy Danny L → No 22-A; 1990-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Muncy Danny L → Star Buck Coal Inc; 1990-02-01 to current/open; source msha-controller-operator-history