# Relationship history for MSHA mine 1901318

Current hierarchy: **Michael P  Hogan; Christopher  Makepeace → Read Custom Soils LLC → Read Custom Soils Pit #96**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Read Custom Soils LLC → Read Custom Soils Pit #96; 2023-09-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael P  Hogan et al → Read Custom Soils Pit #96; 2023-09-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael P  Hogan et al → Read Custom Soils LLC; 2023-09-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Christopher  Makepeace et al → Read Custom Soils LLC; 2023-09-05 to current/open; source msha-controller-operator-history