# Relationship history for MSHA mine 3003354

Current hierarchy: **Amy R  Pariso; Michael J  Doyle → Seven Springs Gravel Products LLC → Seven Springs Gravel Products 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:** Seven Springs Gravel Products LLC → Seven Springs Gravel Products LLC; 2000-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael  Doyle → Seven Springs Gravel Products LLC; 2000-09-01 to 2018-10-09; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Doyle → Seven Springs Gravel Products LLC; 2000-09-01 to 2018-10-09; source msha-controller-operator-history
- **controller_controls_mine:** Michael J  Doyle et al → Seven Springs Gravel Products LLC; 2018-10-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael J  Doyle et al → Seven Springs Gravel Products LLC; 2018-10-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Amy R  Pariso et al → Seven Springs Gravel Products LLC; 2018-10-10 to current/open; source msha-controller-operator-history