# Relationship history for MSHA mine 1511338

Current hierarchy: **Valley Energy Resources → Valley Mining Company Inc → St Charles No 1 Strip**

- 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

- **controller_controls_mine:** Valley Energy Resources → St Charles No 1 Strip; 1976-10-26 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Valley Mining Company Inc → St Charles No 1 Strip; 1978-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Valley Energy Resources → Valley Mining Company Inc; 1978-05-01 to current/open; source msha-controller-operator-history