# Relationship history for MSHA mine 4609354

Current hierarchy: **Gladys A  Stacy → G & R Augering, Inc. → Auger #2, Ed Coal, Inc.**

- 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:** Douglas M  Epling et al → Auger #2, Ed Coal, Inc.; 2000-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gladys A  Stacy → Auger #2, Ed Coal, Inc.; 2001-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** G & R Augering Inc → Auger #2, Ed Coal, Inc.; 2009-10-05 to 2011-10-02; source msha-controller-operator-history
- **controller_controls_operator:** Gladys A  Stacy → G & R Augering Inc; 2009-10-05 to 2011-10-02; source msha-controller-operator-history
- **operator_operates_mine:** Hanover Resources LLC → Auger #2, Ed Coal, Inc.; 2011-10-03 to 2012-12-18; source msha-controller-operator-history
- **controller_controls_operator:** Douglas M  Epling et al → Hanover Resources LLC; 2011-10-03 to 2012-12-18; source msha-controller-operator-history
- **operator_operates_mine:** G & R Augering, Inc. → Auger #2, Ed Coal, Inc.; 2012-12-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gladys A  Stacy → G & R Augering, Inc.; 2012-12-19 to current/open; source msha-controller-operator-history