# Relationship history for MSHA mine 2200471

Current hierarchy: **Mike  Juckes → LimeCo LLC → LimeCo**

- 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:** LimeCo LLC → LimeCo; 1978-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Betty  Engelstad et al → LimeCo; 1978-03-09 to 2013-03-28; source msha-controller-operator-history
- **controller_controls_operator:** Betty  Engelstad et al → LimeCo LLC; 1978-03-09 to 2013-03-28; source msha-controller-operator-history
- **controller_controls_mine:** Mike  Juckes et al → LimeCo; 2013-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mike  Juckes et al → LimeCo LLC; 2013-03-29 to current/open; source msha-controller-operator-history