# Relationship history for MSHA mine 1518990

Current hierarchy: **Benjamin R  Spurlock → Cripple Creek, LLC → Cripple Creek Mining LLC**

- 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:** Cripple Creek, LLC → Cripple Creek Mining LLC; 2006-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Benjamin R  Spurlock → Cripple Creek Mining LLC; 2006-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Benjamin R  Spurlock → Cripple Creek, LLC; 2006-05-05 to current/open; source msha-controller-operator-history