# Relationship history for MSHA mine 1519241

Current hierarchy: **Plains Capital Equity LLC; William H  Murphy → WHM Mineral Holdings, LLC → Warfield Mine**

- 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:** WHM Mineral Holdings, LLC → Warfield Mine; 2008-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Plains Capital Equity LLC et al → Warfield Mine; 2008-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Plains Capital Equity LLC et al → WHM Mineral Holdings, LLC; 2008-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William H  Murphy et al → WHM Mineral Holdings, LLC; 2008-05-30 to current/open; source msha-controller-operator-history