# Relationship history for MSHA mine 4407143

Current hierarchy: **Fredrick J  Murell → Wolf Creek Coal Corp LLC → Feds Creek #1**

- 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

- **operator_operates_mine:** Wolf Creek Coal Corp LLC → Feds Creek #1; 2005-07-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Fredrick J  Murell → Feds Creek #1; 2005-07-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fredrick J  Murell → Wolf Creek Coal Corp LLC; 2005-07-21 to current/open; source msha-controller-operator-history