# Relationship history for MSHA mine 1511395

Current hierarchy: **Morgan Wayne T Jr → Regal Mining Inc → Regal No 2 Surface**

- 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:** Morgan Wayne T Jr → Regal No 2 Surface; 1978-04-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Regal Mining Inc → Regal No 2 Surface; 1978-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Morgan Wayne T Jr → Regal Mining Inc; 1978-06-01 to current/open; source msha-controller-operator-history