# Relationship history for MSHA mine 2000706

Current hierarchy: **Kim  Ruse → Ruse's Sand & Gravel Inc → RUSE'S SAND & GRAVEL, 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Eastman Gravel Pit → RUSE'S SAND & GRAVEL, INC.; 1950-01-01 to 1995-06-24; source msha-controller-operator-history
- **controller_controls_mine:** Melvil O  Eastman → RUSE'S SAND & GRAVEL, INC.; 1950-01-01 to 1995-06-24; source msha-controller-operator-history
- **controller_controls_operator:** Melvil O  Eastman → Eastman Gravel Pit; 1950-01-01 to 1995-06-24; source msha-controller-operator-history
- **operator_operates_mine:** Eastman Gravel Pit → RUSE'S SAND & GRAVEL, INC.; 1995-06-25 to 1996-09-06; source msha-controller-operator-history
- **controller_controls_mine:** Dennis Ray  Eastman  et al → RUSE'S SAND & GRAVEL, INC.; 1995-06-25 to 1996-09-06; source msha-controller-operator-history
- **controller_controls_operator:** Dennis Ray  Eastman  et al → Eastman Gravel Pit; 1995-06-25 to 1996-09-06; source msha-controller-operator-history
- **operator_operates_mine:** Ruse's Sand & Gravel Inc → RUSE'S SAND & GRAVEL, INC.; 1996-09-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kim  Ruse → RUSE'S SAND & GRAVEL, INC.; 1996-09-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kim  Ruse → Ruse's Sand & Gravel Inc; 1996-09-07 to current/open; source msha-controller-operator-history