# Relationship history for MSHA mine 0103014

Current hierarchy: **Ronald S  Bryant → Colonial Contracting Inc → Dixie Springs**

- 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:** Colonial Contracting Inc → Dixie Springs; 1994-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ronald S  Bryant et al → Dixie Springs; 1994-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ronald S  Bryant et al → Colonial Contracting Inc; 1994-05-01 to current/open; source msha-controller-operator-history