# Relationship history for MSHA mine 3303054

Current hierarchy: **Flavin Raymond M Jr → C A B Coal Co → C A B 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

- **operator_operates_mine:** C A B Coal Co → C A B Strip; 1974-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Flavin Raymond M Jr → C A B Strip; 1974-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Flavin Raymond M Jr → C A B Coal Co; 1974-07-01 to current/open; source msha-controller-operator-history