# Relationship history for MSHA mine 1901066

Current hierarchy: **William H  Hood; Mike  Sayles → B M S Land & Development → FORTUNE BLVD.**

- 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:** B M S Land & Development → FORTUNE BLVD.; 1999-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** William H  Hood  et al → FORTUNE BLVD.; 1999-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William H  Hood  et al → B M S Land & Development; 1999-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mike  Sayles  et al → B M S Land & Development; 1999-04-01 to current/open; source msha-controller-operator-history