# Relationship history for MSHA mine 2100788

Current hierarchy: **L G Everist Inc → L.G. Everist, Inc. → Jasper**

- 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

- **controller_controls_mine:** L G Everist Inc → Jasper; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jasper Stone Company → Jasper; 1950-01-01 to 2001-07-31; source msha-controller-operator-history
- **controller_controls_mine:** C F  Lytle → Jasper; 1950-01-01 to 2001-07-31; source msha-controller-operator-history
- **controller_controls_operator:** C F  Lytle → Jasper Stone Company; 1950-01-01 to 2001-07-31; source msha-controller-operator-history
- **operator_operates_mine:** L.G. Everist, Inc. → Jasper; 2001-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** L G Everist Inc → L.G. Everist, Inc.; 2001-08-01 to current/open; source msha-controller-operator-history