# Relationship history for MSHA mine 0102944

Current hierarchy: **Cupps Mike → Egypt Contracting Company Inc → Mine No 10**

- 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:** Brown Barry L → Mine No 10; 1985-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cupps Mike → Mine No 10; 1991-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lost Creek Coal Company Inc → Mine No 10; 1992-01-01 to 1992-09-15; source msha-controller-operator-history
- **controller_controls_operator:** Brown Barry L → Lost Creek Coal Company Inc; 1992-01-01 to 1992-09-15; source msha-controller-operator-history
- **operator_operates_mine:** Egypt Contracting Company Inc → Mine No 10; 1992-09-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cupps Mike → Egypt Contracting Company Inc; 1992-09-16 to current/open; source msha-controller-operator-history