# Relationship history for MSHA mine 0405716

Current hierarchy: **Ace Development LLC; Quanta Affiliates → Barrons Management LLC → Plant A**

- 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:** Lubanko Brothers Inc → Plant A; 2007-03-29 to 2008-07-30; source msha-controller-operator-history
- **controller_controls_mine:** Milan D  Lubanko et al → Plant A; 2007-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Milan D  Lubanko et al → Lubanko Brothers Inc; 2007-03-29 to 2008-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Mike  Lubanko et al → Lubanko Brothers Inc; 2007-03-29 to 2008-07-30; source msha-controller-operator-history
- **operator_operates_mine:** LB Crushing LLC → Plant A; 2008-07-31 to 2009-09-09; source msha-controller-operator-history
- **controller_controls_mine:** Bruce  Degler et al → Plant A; 2008-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bruce  Degler et al → LB Crushing LLC; 2008-07-31 to 2009-09-09; source msha-controller-operator-history
- **controller_controls_operator:** Kim  Pugmire et al → LB Crushing LLC; 2008-07-31 to 2009-09-09; source msha-controller-operator-history
- **operator_operates_mine:** Barrons Management LLC → Plant A; 2009-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ace Development LLC  et al → Plant A; 2009-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ace Development LLC  et al → Barrons Management LLC; 2009-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Quanta Affiliates  et al → Barrons Management LLC; 2009-09-10 to current/open; source msha-controller-operator-history