# Relationship history for MSHA mine 3304709

Current hierarchy: **SDC LLC; Cox Enterprises LLC → Commonwealth Mining, LLC → HWM # 36**

- 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:** L C Management et al → HWM # 36; 2010-03-03 to 2018-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Commonwealth Mining, LLC → HWM # 36; 2014-03-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** L C Management et al → Commonwealth Mining, LLC; 2014-03-06 to 2018-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Cox Enterprises et al → Commonwealth Mining, LLC; 2014-03-06 to 2018-12-31; source msha-controller-operator-history
- **controller_controls_mine:** SDC LLC et al → HWM # 36; 2019-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** SDC LLC et al → Commonwealth Mining, LLC; 2019-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cox Enterprises LLC et al → Commonwealth Mining, LLC; 2019-01-01 to current/open; source msha-controller-operator-history