# Relationship history for MSHA mine 4503349

Current hierarchy: **Mark E  McCutcheon → TCQ LLC → ROULEAU QUARRY**

- 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

- **operator_operates_mine:** Ed Rouleau → ROULEAU QUARRY; 1996-03-01 to 2020-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Ed  Rouleau → ROULEAU QUARRY; 1996-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ed  Rouleau → Ed Rouleau; 1996-03-01 to 2020-03-31; source msha-controller-operator-history
- **operator_operates_mine:** M.E.M ENTERPRISES, LLC → ROULEAU QUARRY; 2020-04-01 to 2022-01-25; source msha-controller-operator-history
- **controller_controls_mine:** Mark E  McCutcheon → ROULEAU QUARRY; 2020-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark E  McCutcheon → M.E.M ENTERPRISES, LLC; 2020-04-01 to 2022-01-25; source msha-controller-operator-history
- **operator_operates_mine:** TCQ LLC → ROULEAU QUARRY; 2022-01-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mark E  McCutcheon → ROULEAU QUARRY; 2022-01-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark E  McCutcheon → TCQ LLC; 2022-01-26 to current/open; source msha-controller-operator-history