# Relationship history for MSHA mine 4609158

Current hierarchy: **John  Janney; Juegen  Kasperczyk → Mountain Energy Holdings, LLC → Beury Mountain Mine No 2**

- 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:** Perry  Queener et al → Beury Mountain Mine No 2; 2004-08-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Eagle Ridge Development Group LLC → Beury Mountain Mine No 2; 2006-04-05 to 2011-08-09; source msha-controller-operator-history
- **controller_controls_operator:** Perry  Queener et al → Eagle Ridge Development Group LLC; 2006-04-05 to 2011-08-09; source msha-controller-operator-history
- **operator_operates_mine:** Mountain Energy Holdings, LLC → Beury Mountain Mine No 2; 2011-08-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Juegen  Kasperczyk et al → Beury Mountain Mine No 2; 2011-08-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Juegen  Kasperczyk et al → Mountain Energy Holdings, LLC; 2011-08-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Janney et al → Mountain Energy Holdings, LLC; 2011-08-10 to current/open; source msha-controller-operator-history