# Relationship history for MSHA mine 1202298

Current hierarchy: **Jerry A Everly; Dave  Kilgore → Northeast Indiana Sand & Gravel Company LLC → PLANT 2**

- 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:** Northeast Indiana Sand & Gravel Company LLC → PLANT 2; 2000-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jerry A Everly et al → PLANT 2; 2000-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry A Everly et al → Northeast Indiana Sand & Gravel Company LLC; 2000-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dave  Kilgore et al → Northeast Indiana Sand & Gravel Company LLC; 2000-10-01 to current/open; source msha-controller-operator-history