# Relationship history for MSHA mine 4105692

Current hierarchy: **Harold  Chapman → Wilco Aggregates, LLC → Armadillo Pit**

- 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:** Harold  Chapman et al → Armadillo Pit; 2019-02-01 to 2022-10-19; source msha-controller-operator-history
- **controller_controls_mine:** Harold  Chapman → Armadillo Pit; 2022-10-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Wilco Aggregates, LLC → Armadillo Pit; 2023-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harold  Chapman et al → Wilco Aggregates, LLC; 2023-06-01 to 2022-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Duane  McGlauflin et al → Wilco Aggregates, LLC; 2023-06-01 to 2022-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Harold  Chapman → Wilco Aggregates, LLC; 2023-06-01 to current/open; source msha-controller-operator-history