# Relationship history for MSHA mine 4202614

Current hierarchy: **Stephen G  Bunn → Broken Arrow, Inc. → Dugway Pit**

- 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

- **controller_controls_mine:** Stephen G  Bunn → Dugway Pit; 1994-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Broken Arrow, Inc. → Dugway Pit; 2013-10-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stephen G  Bunn → Broken Arrow, Inc.; 2013-10-08 to current/open; source msha-controller-operator-history