# Relationship history for MSHA mine 3402105

Current hierarchy: **Metamining Inc; Ryan Holdings → Coal Creek Minerals, LLC → Calder 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** AES Corp → Calder Mine; 1997-06-20 to 2010-06-20; source msha-controller-operator-history
- **operator_operates_mine:** Coal Creek Minerals, LLC → Calder Mine; 2010-06-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** AES Corp → Coal Creek Minerals, LLC; 2010-06-21 to 2010-06-20; source msha-controller-operator-history
- **controller_controls_mine:** Steven  Marusich → Calder Mine; 2010-06-21 to 2012-11-07; source msha-controller-operator-history
- **controller_controls_operator:** Steven  Marusich → Coal Creek Minerals, LLC; 2010-06-21 to 2012-11-07; source msha-controller-operator-history
- **controller_controls_mine:** Ryan Holdings et al → Calder Mine; 2012-11-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ryan Holdings et al → Coal Creek Minerals, LLC; 2012-11-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Metamining Inc et al → Coal Creek Minerals, LLC; 2012-11-08 to current/open; source msha-controller-operator-history