# Relationship history for MSHA mine 3800743

Current hierarchy: **Richard B  Hutto; John O'Bryan  Hutto → Hutto Bros Properties LLC → Hutto Mine**

- 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:** Merit Enterprises LLC → Hutto Mine; 2014-09-17 to 2020-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Mechelle  Merritt → Hutto Mine; 2014-09-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mechelle  Merritt → Merit Enterprises LLC; 2014-09-17 to 2020-06-14; source msha-controller-operator-history
- **operator_operates_mine:** Hutto Bros Properties LLC → Hutto Mine; 2020-06-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Richard B  Hutto et al → Hutto Mine; 2020-06-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard B  Hutto et al → Hutto Bros Properties LLC; 2020-06-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John O'Bryan  Hutto et al → Hutto Bros Properties LLC; 2020-06-15 to current/open; source msha-controller-operator-history