# Relationship history for MSHA mine 3004034

Current hierarchy: **Roy D  Reeves → RMS Gravel Inc → Eagle 15x36 Portable Jaw s/n 11129**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** Roy D  Reeves → Eagle 15x36 Portable Jaw s/n 11129; 1985-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** RMS Gravel Inc → Eagle 15x36 Portable Jaw s/n 11129; 2019-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roy D  Reeves → RMS Gravel Inc; 2019-06-01 to current/open; source msha-controller-operator-history