# Relationship history for MSHA mine 4605873

Current hierarchy: **Riddle Rodney → Stockton Fuels Inc → Number 1 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:** Rosenblatt Tilman → Number 1 Mine; 1977-04-01 to 1980-12-28; source msha-controller-operator-history
- **operator_operates_mine:** Mining Development Enterprises Inc → Number 1 Mine; 1978-09-01 to 1980-12-28; source msha-controller-operator-history
- **controller_controls_operator:** Rosenblatt Tilman → Mining Development Enterprises Inc; 1978-09-01 to 1980-12-28; source msha-controller-operator-history
- **operator_operates_mine:** Limerick Coal Corp → Number 1 Mine; 1980-12-29 to 1982-12-07; source msha-controller-operator-history
- **controller_controls_mine:** Mondisette Don → Number 1 Mine; 1980-12-29 to 1982-12-07; source msha-controller-operator-history
- **controller_controls_operator:** Mondisette Don → Limerick Coal Corp; 1980-12-29 to 1982-12-07; source msha-controller-operator-history
- **operator_operates_mine:** Stockton Fuels Inc → Number 1 Mine; 1982-12-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Riddle Rodney → Number 1 Mine; 1982-12-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Riddle Rodney → Stockton Fuels Inc; 1982-12-08 to current/open; source msha-controller-operator-history