# Relationship history for MSHA mine 4202628

Current hierarchy: **Anchorage Capital Group, LLC → 2020 Resources LLC → PR Spring 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

- **operator_operates_mine:** US Oil Sands (Utah) Inc. → PR Spring Mine; 2014-04-24 to 2018-07-26; source msha-controller-operator-history
- **controller_controls_mine:** Glen  Snarr et al → PR Spring Mine; 2014-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Glen  Snarr et al → US Oil Sands (Utah) Inc.; 2014-04-24 to 2018-07-26; source msha-controller-operator-history
- **controller_controls_operator:** Cameron  Todd et al → US Oil Sands (Utah) Inc.; 2014-04-24 to 2018-07-26; source msha-controller-operator-history
- **operator_operates_mine:** 2020 Resources LLC → PR Spring Mine; 2018-07-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Anchorage Capital Group, LLC → PR Spring Mine; 2018-07-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anchorage Capital Group, LLC → 2020 Resources LLC; 2018-07-27 to current/open; source msha-controller-operator-history