# Relationship history for MSHA mine 1202396

Current hierarchy: **Daniel  Balkema → West Plains Mining LLC → Kentner Creek**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** West Plains Mining LLC → Kentner Creek; 2007-04-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** William A  Woodward → Kentner Creek; 2007-04-17 to 2023-04-05; source msha-controller-operator-history
- **controller_controls_operator:** William A  Woodward → West Plains Mining LLC; 2007-04-17 to 2023-04-05; source msha-controller-operator-history
- **controller_controls_mine:** Daniel  Balkema → Kentner Creek; 2023-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel  Balkema → West Plains Mining LLC; 2023-04-06 to current/open; source msha-controller-operator-history