# Relationship history for MSHA mine 0102606

Current hierarchy: **Whittney Blaine  Brassell → Selma Gravel Inc. → COGLE PIT**

- 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:** Selma Gravel Inc. → COGLE PIT; 1984-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Charles L  Brassell → COGLE PIT; 1984-09-01 to 2017-06-08; source msha-controller-operator-history
- **controller_controls_operator:** Charles L  Brassell → Selma Gravel Inc.; 1984-09-01 to 2017-06-08; source msha-controller-operator-history
- **controller_controls_mine:** Janis  Brassell → COGLE PIT; 2017-06-09 to 2019-01-23; source msha-controller-operator-history
- **controller_controls_operator:** Janis  Brassell → Selma Gravel Inc.; 2017-06-09 to 2019-01-23; source msha-controller-operator-history
- **controller_controls_mine:** Ronald  Brassell → COGLE PIT; 2019-01-24 to 2024-01-18; source msha-controller-operator-history
- **controller_controls_operator:** Ronald  Brassell → Selma Gravel Inc.; 2019-01-24 to 2024-01-18; source msha-controller-operator-history
- **controller_controls_mine:** Whittney Blaine  Brassell → COGLE PIT; 2024-01-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Whittney Blaine  Brassell → Selma Gravel Inc.; 2024-01-19 to current/open; source msha-controller-operator-history