# Relationship history for MSHA mine 4607366

Current hierarchy: **Edward A  Asbury → Sally Ann Coal Company Inc → 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Larry David  Cochran et al → No 1; 1981-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Phil-Matt Mining Company Inc → No 1; 1987-09-01 to 1999-05-16; source msha-controller-operator-history
- **controller_controls_operator:** Larry David  Cochran et al → Phil-Matt Mining Company Inc; 1987-09-01 to 1999-05-16; source msha-controller-operator-history
- **controller_controls_operator:** Harry G  Cooke et al → Phil-Matt Mining Company Inc; 1987-09-01 to 1999-05-16; source msha-controller-operator-history
- **operator_operates_mine:** Blue Haven Energy Inc → No 1; 1999-05-17 to 2004-01-11; source msha-controller-operator-history
- **controller_controls_mine:** Howard Russell  Morris → No 1; 1999-05-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Howard Russell  Morris → Blue Haven Energy Inc; 1999-05-17 to 2004-01-11; source msha-controller-operator-history
- **controller_controls_mine:** Howard Russell  Morris → No 1; 2000-12-05 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ruscat Enterprises, Inc. → No 1; 2004-01-12 to 2010-01-24; source msha-controller-operator-history
- **controller_controls_operator:** Howard Russell  Morris → Ruscat Enterprises, Inc.; 2004-01-12 to 2010-01-24; source msha-controller-operator-history
- **operator_operates_mine:** Sally Ann Coal Company Inc → No 1; 2010-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Edward A  Asbury → No 1; 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