# Relationship history for MSHA mine 4503003

Current hierarchy: **Allen  Shearer; Jeff  Hartman → Allen Shearer Sand & Gravel Llc → ALLEN SHEARER SAND & GRAVEL LLC**

- 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

- **operator_operates_mine:** Service Fuel Company Inc → ALLEN SHEARER SAND & GRAVEL LLC; 1983-04-01 to 1994-05-01; source msha-controller-operator-history
- **controller_controls_mine:** James W  Bennett → ALLEN SHEARER SAND & GRAVEL LLC; 1983-04-01 to 1994-05-01; source msha-controller-operator-history
- **controller_controls_operator:** James W  Bennett → Service Fuel Company Inc; 1983-04-01 to 1994-05-01; source msha-controller-operator-history
- **operator_operates_mine:** Belfair Sand & Gravel Inc → ALLEN SHEARER SAND & GRAVEL LLC; 1994-05-02 to 1998-11-10; source msha-controller-operator-history
- **controller_controls_mine:** Walter J  Goit → ALLEN SHEARER SAND & GRAVEL LLC; 1994-05-02 to 1998-11-10; source msha-controller-operator-history
- **controller_controls_operator:** Walter J  Goit → Belfair Sand & Gravel Inc; 1994-05-02 to 1998-11-10; source msha-controller-operator-history
- **operator_operates_mine:** Allen Shearer Sand & Gravel Llc → ALLEN SHEARER SAND & GRAVEL LLC; 1998-11-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jeff  Hartman et al → ALLEN SHEARER SAND & GRAVEL LLC; 1998-11-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeff  Hartman et al → Allen Shearer Sand & Gravel Llc; 1998-11-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Allen  Shearer et al → Allen Shearer Sand & Gravel Llc; 1998-11-11 to current/open; source msha-controller-operator-history