# Relationship history for MSHA mine 4104364

Current hierarchy: **(Fred) Dickie  Tillman → Superior Stone Inc. → Superior Stone Inc.**

- 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:** Superior Stone Inc. → Superior Stone Inc.; 2002-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** (Fred) Dickie  Tillman → Superior Stone Inc.; 2002-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** (Fred) Dickie  Tillman → Superior Stone Inc.; 2002-05-02 to current/open; source msha-controller-operator-history