# Relationship history for MSHA mine 3503866

Current hierarchy: **Travis K  Jansik; Stacy H  Jansik → Eagle Creek Rock Products, L.L.C → Plant 1**

- 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:** Eagle Creek Rock Products, L.L.C → Plant 1; 2018-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Stacy H  Jansik et al → Plant 1; 2018-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stacy H  Jansik et al → Eagle Creek Rock Products, L.L.C; 2018-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Travis K  Jansik et al → Eagle Creek Rock Products, L.L.C; 2018-03-01 to current/open; source msha-controller-operator-history