# Relationship history for MSHA mine 1510915

Current hierarchy: **Collins James & James Sturgill → C & C Coal Company → Lou Ann No 3 Surface/Underground**

- 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:** Collins James & James Sturgill → Lou Ann No 3 Surface/Underground; 1977-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C & C Coal Company → Lou Ann No 3 Surface/Underground; 1977-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Collins James & James Sturgill → C & C Coal Company; 1977-11-01 to current/open; source msha-controller-operator-history