# Relationship history for MSHA mine 4609106

Current hierarchy: **Michael  Tolbert → Arjay Mining Inc → Adkins Branch Mine No 1A**

- 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:** Kenneth D  Coe → Adkins Branch Mine No 1A; 2004-08-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Adkins Branch Mine No 1A; 2004-09-21 to 2016-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Riverside Energy Company LLC → Adkins Branch Mine No 1A; 2005-05-31 to 2005-08-09; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Riverside Energy Company LLC; 2005-05-31 to 2005-08-09; source msha-controller-operator-history
- **operator_operates_mine:** Marco Mining, Inc. → Adkins Branch Mine No 1A; 2005-08-10 to 2005-11-02; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth D  Coe → Marco Mining, Inc.; 2005-08-10 to 2005-11-02; source msha-controller-operator-history
- **operator_operates_mine:** Arjay Mining Inc → Adkins Branch Mine No 1A; 2005-11-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael  Tolbert → Adkins Branch Mine No 1A; 2005-11-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Tolbert → Arjay Mining Inc; 2005-11-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Adkins Branch Mine No 1A; 2016-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Riverside Energy Company LLC; 2016-07-26 to 2005-08-09; source msha-controller-operator-history