# Relationship history for MSHA mine 4407287

Current hierarchy: **Cobalt Coal LLC → Mill Creek Mining, Inc. → Hagy Deep Mine #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

- **controller_controls_mine:** Ron  Collins et al → Hagy Deep Mine #1; 2011-02-28 to 2012-08-14; source msha-controller-operator-history
- **operator_operates_mine:** C & B Coal, LLC → Hagy Deep Mine #1; 2011-08-10 to 2014-06-11; source msha-controller-operator-history
- **controller_controls_operator:** Ron  Collins et al → C & B Coal, LLC; 2011-08-10 to 2012-08-14; source msha-controller-operator-history
- **controller_controls_operator:** Vern  Bray et al → C & B Coal, LLC; 2011-08-10 to 2012-08-14; source msha-controller-operator-history
- **controller_controls_mine:** Charles L  Miller et al → Hagy Deep Mine #1; 2012-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles L  Miller et al → C & B Coal, LLC; 2012-08-15 to 2014-06-11; source msha-controller-operator-history
- **controller_controls_operator:** Clayton Van  Roberts et al → C & B Coal, LLC; 2012-08-15 to 2014-06-11; source msha-controller-operator-history
- **controller_controls_mine:** Stanley Kenneth D Et Al → Hagy Deep Mine #1; 2013-03-19 to 2014-05-28; source msha-controller-operator-history
- **controller_controls_mine:** Cobalt Coal LLC → Hagy Deep Mine #1; 2014-05-29 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mill Creek Mining, Inc. → Hagy Deep Mine #1; 2014-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cobalt Coal LLC → Mill Creek Mining, Inc.; 2014-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stanley Kenneth D Et Al → Mill Creek Mining, Inc.; 2014-06-12 to 2014-05-28; source msha-controller-operator-history