# Relationship history for MSHA mine 1519351

Current hierarchy: **Focus Energy Holdings LLC → Iron Eagle Enterprises LLC → Eagle #1**

- 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:** Iron Eagle Enterprises LLC → Eagle #1; 2008-11-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bill  Webb → Eagle #1; 2008-11-17 to 2009-06-29; source msha-controller-operator-history
- **controller_controls_operator:** Bill  Webb → Iron Eagle Enterprises LLC; 2008-11-17 to 2009-06-29; source msha-controller-operator-history
- **controller_controls_mine:** Focus Energy Holdings LLC → Eagle #1; 2009-06-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Focus Energy Holdings LLC → Iron Eagle Enterprises LLC; 2009-06-30 to current/open; source msha-controller-operator-history