# Relationship history for MSHA mine 4002939

Current hierarchy: **Reeves Terry C → Scarab Energy Corp → Mine No 3r**

- 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:** Reeves Terry C → Mine No 3r; 1984-04-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Scarab Energy Corp → Mine No 3r; 1986-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Reeves Terry C → Scarab Energy Corp; 1986-10-01 to current/open; source msha-controller-operator-history