# Relationship history for MSHA mine 5000996

Current hierarchy: **Jesse O  Passin → Mega Trucking LLC → Mega Sand and Gravel**

- 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:** Northwestern Construction Inc → Mega Sand and Gravel; 1950-01-01 to 2017-06-04; source msha-controller-operator-history
- **controller_controls_mine:** Northwestern Construction Inc → Mega Sand and Gravel; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Northwestern Construction Inc → Northwestern Construction Inc; 1950-01-01 to 2017-06-04; source msha-controller-operator-history
- **operator_operates_mine:** Mega Trucking LLC → Mega Sand and Gravel; 2017-06-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jesse O  Passin → Mega Sand and Gravel; 2017-06-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jesse O  Passin → Mega Trucking LLC; 2017-06-05 to current/open; source msha-controller-operator-history