# Relationship history for MSHA mine 2003220

Current hierarchy: **Brian  Pitt; Paul  Wesley → Superior Modular Homes → SUPERIOR SAND & STONE**

- 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:** Superior Modular Homes → SUPERIOR SAND & STONE; 2001-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brian  Pitt et al → SUPERIOR SAND & STONE; 2001-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brian  Pitt et al → Superior Modular Homes; 2001-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Wesley et al → Superior Modular Homes; 2001-07-01 to current/open; source msha-controller-operator-history