# Relationship history for MSHA mine 3402141

Current hierarchy: **Don M  Donaho → Donaho Stone LLC → Brooks Shaw #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:** Bobby  Coyle → Brooks Shaw #1; 2008-01-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Don M  Donaho et al → Brooks Shaw #1; 2011-03-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Quality Production Company → Brooks Shaw #1; 2014-01-20 to 2014-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Bobby  Coyle → Quality Production Company; 2014-01-20 to 2014-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Quality Production Rock, LLC → Brooks Shaw #1; 2014-04-01 to 2025-04-20; source msha-controller-operator-history
- **controller_controls_mine:** Jarrod  Coyle et al → Brooks Shaw #1; 2014-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jarrod  Coyle et al → Quality Production Rock, LLC; 2014-04-01 to 2025-04-20; source msha-controller-operator-history
- **controller_controls_operator:** Bobby  Coyle et al → Quality Production Rock, LLC; 2014-04-01 to 2025-04-20; source msha-controller-operator-history
- **controller_controls_mine:** Miguel  Gonzalez → Brooks Shaw #1; 2022-03-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rocklahoma LLC → Brooks Shaw #1; 2025-04-21 to 2025-07-13; source msha-controller-operator-history
- **controller_controls_operator:** Miguel  Gonzalez → Rocklahoma LLC; 2025-04-21 to 2025-07-13; source msha-controller-operator-history
- **operator_operates_mine:** Donaho Stone LLC → Brooks Shaw #1; 2025-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Don M  Donaho et al → Donaho Stone LLC; 2025-07-14 to current/open; source msha-controller-operator-history