# Relationship history for MSHA mine 4607352

Current hierarchy: **Thomas M  Rasnake → Abb'S Resources 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

- **operator_operates_mine:** Bulldog Mining Inc → No 1; 1987-09-01 to 1989-09-19; source msha-controller-operator-history
- **controller_controls_mine:** Hurley Kathy → No 1; 1987-09-01 to 1989-09-19; source msha-controller-operator-history
- **controller_controls_operator:** Hurley Kathy → Bulldog Mining Inc; 1987-09-01 to 1989-09-19; source msha-controller-operator-history
- **operator_operates_mine:** Abb'S Resources Inc → No 1; 1989-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Thomas M  Rasnake → No 1; 1989-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas M  Rasnake → Abb'S Resources Inc; 1989-09-20 to current/open; source msha-controller-operator-history