# Relationship history for MSHA mine 3901631

Current hierarchy: **James  Werdel; Willie  Werdel → Center Point Aggregates LLC → Screen #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:** Center Point Aggregates LLC → Screen #1; 2017-11-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Willie  Werdel et al → Screen #1; 2017-11-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Willie  Werdel et al → Center Point Aggregates LLC; 2017-11-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Werdel et al → Center Point Aggregates LLC; 2017-11-07 to current/open; source msha-controller-operator-history