# Relationship history for MSHA mine 3303263

Current hierarchy: **Rossiter J E Contracting Company → J E Rossiter Contracting Company → Phyllis Strip**

- 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

- **controller_controls_mine:** Rossiter J E Contracting Company → Phyllis Strip; 1974-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J E Rossiter Contracting Company → Phyllis Strip; 1974-12-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rossiter J E Contracting Company → J E Rossiter Contracting Company; 1974-12-23 to current/open; source msha-controller-operator-history