# Relationship history for MSHA mine 0101927

Current hierarchy: **Bulkcoal Inc & Fourth St Capital Corp → Bulkcoal Of Alabama → Bulkcoal Of Alabama Prep Plant**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Bulkcoal Of Alabama → Bulkcoal Of Alabama Prep Plant; 1978-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bulkcoal Inc & Fourth St Capital Corp → Bulkcoal Of Alabama Prep Plant; 1978-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bulkcoal Inc & Fourth St Capital Corp → Bulkcoal Of Alabama; 1978-08-01 to current/open; source msha-controller-operator-history