# Relationship history for MSHA mine 4608183

Current hierarchy: **Perry  Queener → Eagle Ridge Development Group LLC → Beury Mountain Mine No. 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Dabeka Inc → Beury Mountain Mine No. 1; 1992-06-01 to 1995-09-18; source msha-controller-operator-history
- **controller_controls_mine:** Alvin W  Cox → Beury Mountain Mine No. 1; 1992-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alvin W  Cox → Dabeka Inc; 1992-06-01 to 1995-09-18; source msha-controller-operator-history
- **operator_operates_mine:** Dabeka Inc → Beury Mountain Mine No. 1; 1995-09-19 to 1996-08-26; source msha-controller-operator-history
- **controller_controls_mine:** John E  Plaster → Beury Mountain Mine No. 1; 1995-09-19 to 1996-08-26; source msha-controller-operator-history
- **controller_controls_operator:** John E  Plaster → Dabeka Inc; 1995-09-19 to 1996-08-26; source msha-controller-operator-history
- **operator_operates_mine:** Dabeka Inc → Beury Mountain Mine No. 1; 1996-08-27 to 1997-01-26; source msha-controller-operator-history
- **controller_controls_mine:** Lionel  Baldwin → Beury Mountain Mine No. 1; 1996-08-27 to 1997-01-26; source msha-controller-operator-history
- **controller_controls_operator:** Lionel  Baldwin → Dabeka Inc; 1996-08-27 to 1997-01-26; source msha-controller-operator-history
- **operator_operates_mine:** Dabeka Inc → Beury Mountain Mine No. 1; 1997-01-27 to 1999-01-06; source msha-controller-operator-history
- **controller_controls_mine:** Roy R  Tanner → Beury Mountain Mine No. 1; 1997-01-27 to 1999-01-06; source msha-controller-operator-history
- **controller_controls_operator:** Roy R  Tanner → Dabeka Inc; 1997-01-27 to 1999-01-06; source msha-controller-operator-history
- **operator_operates_mine:** Dabeka Inc → Beury Mountain Mine No. 1; 1999-01-07 to 2004-08-07; source msha-controller-operator-history
- **controller_controls_operator:** Alvin W  Cox → Dabeka Inc; 1999-01-07 to 2004-08-07; source msha-controller-operator-history
- **operator_operates_mine:** Eagle Ridge Development Group LLC → Beury Mountain Mine No. 1; 2004-08-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Perry  Queener et al → Beury Mountain Mine No. 1; 2004-08-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Perry  Queener et al → Eagle Ridge Development Group LLC; 2004-08-08 to current/open; source msha-controller-operator-history