# Relationship history for MSHA mine 4801752

Current hierarchy: **Nicholas  Hout → 383 Construction LLC → Screen #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:** Hout Fencing of Wyoming Inc → Screen #1; 2011-05-17 to 2021-07-13; source msha-controller-operator-history
- **controller_controls_mine:** David  Hout → Screen #1; 2011-05-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Hout → Hout Fencing of Wyoming Inc; 2011-05-17 to 2021-07-13; source msha-controller-operator-history
- **controller_controls_mine:** Nicholas  Hout → Screen #1; 2019-06-13 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** 383 Construction LLC → Screen #1; 2021-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nicholas  Hout → 383 Construction LLC; 2021-07-14 to current/open; source msha-controller-operator-history