# Relationship history for MSHA mine 2103765

Current hierarchy: **Dennis  Lundblad; Kent  Lundblad → Premier Services Corporation → Tracked Screener**

- 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:** Lundblad Brothers Excavating Inc. → Tracked Screener; 2012-06-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kent  Lundblad et al → Tracked Screener; 2012-06-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kent  Lundblad et al → Lundblad Brothers Excavating Inc.; 2012-06-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dennis  Lundblad et al → Lundblad Brothers Excavating Inc.; 2012-06-20 to current/open; source msha-controller-operator-history