# Relationship history for MSHA mine 4606843

Current hierarchy: **Edward A  Asbury → Sally Ann Coal Company Inc → No 2 Mine**

- 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:** Spirit Energy Inc → No 2 Mine; 1984-09-01 to 2005-03-03; source msha-controller-operator-history
- **controller_controls_mine:** Belcher Harold L → No 2 Mine; 1984-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Belcher Harold L → Spirit Energy Inc; 1984-09-01 to 2005-03-03; source msha-controller-operator-history
- **controller_controls_mine:** Howard Russell  Morris → No 2 Mine; 2000-12-05 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ruscat Enterprises, Inc. → No 2 Mine; 2005-03-04 to 2010-01-24; source msha-controller-operator-history
- **controller_controls_operator:** Howard Russell  Morris → Ruscat Enterprises, Inc.; 2005-03-04 to 2010-01-24; source msha-controller-operator-history
- **operator_operates_mine:** Sally Ann Coal Company Inc → No 2 Mine; 2010-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Edward A  Asbury → No 2 Mine; 2010-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward A  Asbury → Sally Ann Coal Company Inc; 2010-01-25 to current/open; source msha-controller-operator-history