# Relationship history for MSHA mine 2104102

Current hierarchy: **Jacob  Barkley → Kasota Stone Fabricators Inc. → L-159**

- 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:** Jacob  Barkley → L-159; 2015-03-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kasota Stone Fabricators Inc. → L-159; 2025-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jacob  Barkley → Kasota Stone Fabricators Inc.; 2025-06-19 to current/open; source msha-controller-operator-history