# Relationship history for MSHA mine 3610245

Current hierarchy: **Matthew  Curry → Curry & Kepple Inc → South Bend Pit #1**

- 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:** Curry & Kepple Inc → South Bend Pit #1; 2018-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Glenn R  Kepple → South Bend Pit #1; 2018-06-12 to 2020-01-14; source msha-controller-operator-history
- **controller_controls_operator:** Glenn R  Kepple → Curry & Kepple Inc; 2018-06-12 to 2020-01-14; source msha-controller-operator-history
- **controller_controls_mine:** Matthew  Curry → South Bend Pit #1; 2020-01-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matthew  Curry → Curry & Kepple Inc; 2020-01-15 to current/open; source msha-controller-operator-history