# Relationship history for MSHA mine 4703279

Current hierarchy: **Brian  Pitlik; Scott  Wick → Pitlik & Wick, Inc. → Wash Plant 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Kent  Pitlik et al → Wash Plant 1; 1950-01-01 to 2022-01-17; source msha-controller-operator-history
- **operator_operates_mine:** Pitlik & Wick, Inc. → Wash Plant 1; 2001-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kent  Pitlik et al → Pitlik & Wick, Inc.; 2001-06-01 to 2022-01-17; source msha-controller-operator-history
- **controller_controls_operator:** Brian  Pitlik et al → Pitlik & Wick, Inc.; 2001-06-01 to 2022-01-17; source msha-controller-operator-history
- **controller_controls_mine:** Scott  Wick et al → Wash Plant 1; 2022-01-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott  Wick et al → Pitlik & Wick, Inc.; 2022-01-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brian  Pitlik et al → Pitlik & Wick, Inc.; 2022-01-18 to current/open; source msha-controller-operator-history
