# Relationship history for MSHA mine 0203084

Current hierarchy: **Kelly J  Shepherd; Maurice  Tanner → Granite Express LLC → Crusher #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

- **controller_controls_mine:** Kelly J  Shepherd et al → Crusher #1; 2002-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Granite Express LLC → Crusher #1; 2005-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kelly J  Shepherd et al → Granite Express LLC; 2005-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Maurice  Tanner et al → Granite Express LLC; 2005-05-01 to current/open; source msha-controller-operator-history