# Relationship history for MSHA mine 3610329

Current hierarchy: **Edward J  Ratay Jr → Coal Loaders Inc → Big Pine 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:** James W  Cooper → Big Pine Mine; 1978-10-01 to 2025-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Scott E  Fieg → Big Pine Mine; 1987-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Fieg Brothers → Big Pine Mine; 2020-05-04 to 2022-06-26; source msha-controller-operator-history
- **controller_controls_operator:** Scott E  Fieg → Fieg Brothers; 2020-05-04 to 2022-06-26; source msha-controller-operator-history
- **operator_operates_mine:** Coal Loaders Inc → Big Pine Mine; 2022-06-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James W  Cooper → Coal Loaders Inc; 2022-06-27 to 2025-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Edward J  Ratay Jr → Big Pine Mine; 2025-12-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward J  Ratay Jr → Coal Loaders Inc; 2025-12-31 to current/open; source msha-controller-operator-history