# Relationship history for MSHA mine 4609171

Current hierarchy: **CONSOL Energy Inc → Little Eagle Coal Company LLC → Rocklick Coalburg Deep Mine**

- 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:** Amvest Corporation → Rocklick Coalburg Deep Mine; 2002-08-16 to 2007-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Little Eagle Coal Company LLC → Rocklick Coalburg Deep Mine; 2006-06-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Amvest Corporation → Little Eagle Coal Company LLC; 2006-06-08 to 2007-07-31; source msha-controller-operator-history
- **controller_controls_mine:** CONSOL Energy Inc → Rocklick Coalburg Deep Mine; 2007-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CONSOL Energy Inc → Little Eagle Coal Company LLC; 2007-08-01 to current/open; source msha-controller-operator-history