# Relationship history for MSHA mine 4609128

Current hierarchy: **SunCoke Energy Incorporated → Vansant Coal Corporation → Vansant Coal Corporation Mine No. 5A**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** Sunoco, Inc. → Vansant Coal Corporation Mine No. 5A; 1994-09-01 to 2012-01-16; source msha-controller-operator-history
- **operator_operates_mine:** Vansant Coal Corporation → Vansant Coal Corporation Mine No. 5A; 2005-11-09 to 2008-06-19; source msha-controller-operator-history
- **controller_controls_operator:** Sunoco, Inc. → Vansant Coal Corporation; 2005-11-09 to 2008-06-19; source msha-controller-operator-history
- **operator_operates_mine:** Thumper Coal Co., Inc. → Vansant Coal Corporation Mine No. 5A; 2008-06-20 to 2009-07-08; source msha-controller-operator-history
- **controller_controls_mine:** Perry Allen  Whited → Vansant Coal Corporation Mine No. 5A; 2008-06-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Perry Allen  Whited → Thumper Coal Co., Inc.; 2008-06-20 to 2009-07-08; source msha-controller-operator-history
- **operator_operates_mine:** Vansant Coal Corporation → Vansant Coal Corporation Mine No. 5A; 2009-07-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sunoco, Inc. → Vansant Coal Corporation; 2009-07-09 to 2012-01-16; source msha-controller-operator-history
- **controller_controls_mine:** SunCoke Energy Incorporated → Vansant Coal Corporation Mine No. 5A; 2012-01-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** SunCoke Energy Incorporated → Vansant Coal Corporation; 2012-01-17 to 2008-06-19; source msha-controller-operator-history
- **controller_controls_operator:** SunCoke Energy Incorporated → Vansant Coal Corporation; 2012-01-17 to current/open; source msha-controller-operator-history