# Relationship history for MSHA mine 4608337

Current hierarchy: **Alpha Natural Resources, Inc. → White Flame Energy Inc → N0 7**

- 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:** Donald  Nicewonder → N0 7; 1988-02-01 to 2005-11-01; source msha-controller-operator-history
- **operator_operates_mine:** White Flame Energy Inc → N0 7; 1993-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donald  Nicewonder → White Flame Energy Inc; 1993-09-01 to 2005-11-01; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → N0 7; 2005-11-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → White Flame Energy Inc; 2005-11-02 to current/open; source msha-controller-operator-history