# Relationship history for MSHA mine 1800809

Current hierarchy: **Lucy M  Taylor → Black Water, Inc → Black Water Auger #3**

- 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:** Lucy M  Taylor → Black Water Auger #3; 2017-03-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Black Water, Inc. → Black Water Auger #3; 2020-05-12 to 2024-04-23; source msha-controller-operator-history
- **controller_controls_operator:** Lucy M  Taylor → Black Water, Inc.; 2020-05-12 to 2024-04-23; source msha-controller-operator-history
- **controller_controls_mine:** Thomas W Turpin II → Black Water Auger #3; 2023-02-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** LONE WOLFE NATURAL RESOURCE SERVICES, INC. → Black Water Auger #3; 2024-04-24 to 2024-08-21; source msha-controller-operator-history
- **controller_controls_operator:** Thomas W Turpin II → LONE WOLFE NATURAL RESOURCE SERVICES, INC.; 2024-04-24 to 2024-08-21; source msha-controller-operator-history
- **operator_operates_mine:** Black Water, Inc → Black Water Auger #3; 2024-08-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lucy M  Taylor → Black Water, Inc; 2024-08-22 to current/open; source msha-controller-operator-history