# Relationship history for MSHA mine 3002855

Current hierarchy: **David W  Stout Jr → STOUTS READY MIX → STOUTS 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Slaga Trucking → STOUTS PIT; 1988-08-01 to 1989-03-26; source msha-controller-operator-history
- **controller_controls_mine:** Slaga David → STOUTS PIT; 1988-08-01 to 1989-03-26; source msha-controller-operator-history
- **controller_controls_operator:** Slaga David → Slaga Trucking; 1988-08-01 to 1989-03-26; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → STOUTS PIT; 1988-11-14 to 2007-08-22; source msha-controller-operator-history
- **operator_operates_mine:** Stout'S Ready Mix Ltd → STOUTS PIT; 1989-03-27 to 1997-07-31; source msha-controller-operator-history
- **controller_controls_mine:** David W  Stout Jr → STOUTS PIT; 1989-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David W  Stout Jr → Stout'S Ready Mix Ltd; 1989-03-27 to 1997-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Hanson Aggregates New York Inc → STOUTS PIT; 1997-08-01 to 2002-06-16; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Hanson Aggregates New York Inc; 1997-08-01 to 2002-06-16; source msha-controller-operator-history
- **operator_operates_mine:** STOUTS READY MIX → STOUTS PIT; 2002-06-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David W  Stout Jr → STOUTS READY MIX; 2002-06-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Heidelberg Materials AG → STOUTS PIT; 2007-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Heidelberg Materials AG → Hanson Aggregates New York Inc; 2007-08-23 to 2002-06-16; source msha-controller-operator-history