# Relationship history for MSHA mine 0102701

Current hierarchy: **Whittney Blaine  Brassell → Asphalt Contractors Inc → Doe Run 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Asphalt Contractors Inc → Doe Run Pit; 1986-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Charles L  Brassell → Doe Run Pit; 1986-09-01 to 2017-06-08; source msha-controller-operator-history
- **controller_controls_operator:** Charles L  Brassell → Asphalt Contractors Inc; 1986-09-01 to 2017-06-08; source msha-controller-operator-history
- **controller_controls_mine:** Janis  Brassell → Doe Run Pit; 2017-06-09 to 2019-01-23; source msha-controller-operator-history
- **controller_controls_operator:** Janis  Brassell → Asphalt Contractors Inc; 2017-06-09 to 2019-01-23; source msha-controller-operator-history
- **controller_controls_mine:** Ronald  Brassell → Doe Run Pit; 2019-01-24 to 2024-01-18; source msha-controller-operator-history
- **controller_controls_operator:** Ronald  Brassell → Asphalt Contractors Inc; 2019-01-24 to 2024-01-18; source msha-controller-operator-history
- **controller_controls_mine:** Whittney Blaine  Brassell → Doe Run Pit; 2024-01-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Whittney Blaine  Brassell → Asphalt Contractors Inc; 2024-01-19 to current/open; source msha-controller-operator-history