# Relationship history for MSHA mine 0102817

Current hierarchy: **Doris  Haley → Haley Bros. Coal, Inc. → Dogtown 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Doris  Haley → Dogtown Mine; 1979-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Haley Brothers & Partridge Coal Inc → Dogtown Mine; 1989-08-01 to 2004-02-23; source msha-controller-operator-history
- **controller_controls_operator:** Doris  Haley → Haley Brothers & Partridge Coal Inc; 1989-08-01 to 2004-02-23; source msha-controller-operator-history
- **controller_controls_mine:** Doris  Haley → Dogtown Mine; 2001-07-31 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Haley Bros. Coal, Inc. → Dogtown Mine; 2004-02-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Doris  Haley → Haley Bros. Coal, Inc.; 2004-02-24 to current/open; source msha-controller-operator-history