# Relationship history for MSHA mine 4103003

Current hierarchy: **AA  Price → Price Construction → Old Western**

- 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:** AA  Price → Old Western; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Nowlin Kent → Old Western; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kent Nowlin Construction Inc → Old Western; 1980-03-01 to 1983-06-26; source msha-controller-operator-history
- **controller_controls_operator:** Nowlin Kent → Kent Nowlin Construction Inc; 1980-03-01 to 1983-06-26; source msha-controller-operator-history
- **operator_operates_mine:** Price Construction → Old Western; 1983-06-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** AA  Price → Price Construction; 1983-06-27 to current/open; source msha-controller-operator-history