# Relationship history for MSHA mine 1518658

Current hierarchy: **James H  Booth → Beech Fork Processing Inc → No. 6**

- 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:** James H  Booth et al → No. 6; 1987-07-21 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Beech Fork Processing Inc → No. 6; 2003-08-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James H  Booth et al → Beech Fork Processing Inc; 2003-08-14 to current/open; source msha-controller-operator-history