# Relationship history for MSHA mine 4607076

Current hierarchy: **Rose Ed → Westside Transportation Inc → Wharf #1**

- 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:** Westside River Terminal Inc → Wharf #1; 1986-02-01 to 1988-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Jasper  Petitte et al → Wharf #1; 1986-02-01 to 1988-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Jasper  Petitte et al → Westside River Terminal Inc; 1986-02-01 to 1988-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Westside River Terminal Inc → Wharf #1; 1989-01-01 to 1993-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Petitte Christopher → Wharf #1; 1989-01-01 to 1993-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Petitte Christopher → Westside River Terminal Inc; 1989-01-01 to 1993-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Westside Transportation Inc → Wharf #1; 1993-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rose Ed → Wharf #1; 1993-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rose Ed → Westside Transportation Inc; 1993-10-01 to current/open; source msha-controller-operator-history