# Relationship history for MSHA mine 4406146

Current hierarchy: **SunCoke Energy Incorporated → Dominion Coal Corporation → Dominion No 3**

- 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:** Sunoco, Inc. → Dominion No 3; 1979-10-29 to 2012-01-16; source msha-controller-operator-history
- **operator_operates_mine:** Lynn Coal Company Of Va Inc → Dominion No 3; 1984-10-01 to 1987-03-16; source msha-controller-operator-history
- **controller_controls_mine:** Herbie  Noel → Dominion No 3; 1984-10-01 to 1987-03-16; source msha-controller-operator-history
- **controller_controls_operator:** Herbie  Noel → Lynn Coal Company Of Va Inc; 1984-10-01 to 1987-03-16; source msha-controller-operator-history
- **operator_operates_mine:** Dominion Coal Corporation → Dominion No 3; 1987-03-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sunoco, Inc. → Dominion Coal Corporation; 1987-03-17 to 2012-01-16; source msha-controller-operator-history
- **controller_controls_mine:** SunCoke Energy Incorporated → Dominion No 3; 2012-01-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** SunCoke Energy Incorporated → Dominion Coal Corporation; 2012-01-17 to current/open; source msha-controller-operator-history