# Relationship history for MSHA mine 4405386

Current hierarchy: **SunCoke Energy Incorporated → Dominion Coal Corporation → Dominion No 20**

- 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:** Whited Alfred → Dominion No 20; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sunoco, Inc. → Dominion No 20; 1979-10-17 to 2012-01-16; source msha-controller-operator-history
- **controller_controls_mine:** Sunoco, Inc. → Dominion No 20; 1979-10-29 to 2012-01-16; source msha-controller-operator-history
- **operator_operates_mine:** Alfred Whited Coal Company Inc → Dominion No 20; 1980-03-01 to 1988-01-04; source msha-controller-operator-history
- **controller_controls_operator:** Whited Alfred → Alfred Whited Coal Company Inc; 1980-03-01 to 1988-01-04; source msha-controller-operator-history
- **operator_operates_mine:** T C & W Inc → Dominion No 20; 1988-01-05 to 1988-10-06; source msha-controller-operator-history
- **controller_controls_mine:** Whited Woodie → Dominion No 20; 1988-01-05 to 1988-10-06; source msha-controller-operator-history
- **controller_controls_operator:** Whited Woodie → T C & W Inc; 1988-01-05 to 1988-10-06; source msha-controller-operator-history
- **operator_operates_mine:** Jewell Smokeless Coal Corp → Dominion No 20; 1988-10-07 to 1990-11-06; source msha-controller-operator-history
- **controller_controls_operator:** Sunoco, Inc. → Jewell Smokeless Coal Corp; 1988-10-07 to 1990-11-06; source msha-controller-operator-history
- **operator_operates_mine:** Cripple Creek Contractors Inc → Dominion No 20; 1990-11-07 to 1992-07-30; source msha-controller-operator-history
- **controller_controls_mine:** Smith Albert N → Dominion No 20; 1990-11-07 to 1992-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Smith Albert N → Cripple Creek Contractors Inc; 1990-11-07 to 1992-07-30; source msha-controller-operator-history
- **controller_controls_mine:** Mack  Stiltner et al → Dominion No 20; 1992-06-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mackie J Coal Company Inc → Dominion No 20; 1992-07-31 to 1993-05-04; source msha-controller-operator-history
- **controller_controls_operator:** Mack  Stiltner et al → Mackie J Coal Company Inc; 1992-07-31 to 1993-05-04; source msha-controller-operator-history
- **operator_operates_mine:** Dominion Coal Corporation → Dominion No 20; 1993-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sunoco, Inc. → Dominion Coal Corporation; 1993-05-05 to 2012-01-16; source msha-controller-operator-history
- **controller_controls_mine:** SunCoke Energy Incorporated → Dominion No 20; 2012-01-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** SunCoke Energy Incorporated → Jewell Smokeless Coal Corp; 2012-01-17 to 1990-11-06; 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