# Relationship history for MSHA mine 4703628

Current hierarchy: **Paul  McCourt; Eamon  McCourt; Connor  McCourt → McCourt Reclamation Services Inc → MRS Bloomer**

- 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:** Chippewa Sand Company, LLC → MRS Bloomer; 2011-11-03 to 2020-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Eric  Strang → MRS Bloomer; 2011-11-03 to 2014-06-19; source msha-controller-operator-history
- **controller_controls_operator:** Eric  Strang → Chippewa Sand Company, LLC; 2011-11-03 to 2014-06-19; source msha-controller-operator-history
- **controller_controls_mine:** Sand Investment Co et al → MRS Bloomer; 2014-06-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sand Investment Co et al → Chippewa Sand Company, LLC; 2014-06-20 to 2020-12-31; source msha-controller-operator-history
- **operator_operates_mine:** McCourt Reclamation Services Inc → MRS Bloomer; 2021-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Eamon  McCourt et al → MRS Bloomer; 2021-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eamon  McCourt et al → McCourt Reclamation Services Inc; 2021-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul  McCourt et al → McCourt Reclamation Services Inc; 2021-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Connor  McCourt et al → McCourt Reclamation Services Inc; 2021-01-01 to current/open; source msha-controller-operator-history