# Relationship history for MSHA mine 2200708

Current hierarchy: **R J Billingsley Inc → Mobile Asphalt Company Llc → LUCEDALE 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Mobile Asphalt Company Llc → LUCEDALE PLANT; 1998-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** R J Billingsley Inc et al → LUCEDALE PLANT; 1998-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** R J Billingsley Inc et al → Mobile Asphalt Company Llc; 1998-06-01 to current/open; source msha-controller-operator-history