# Relationship history for MSHA mine 3102095

Current hierarchy: **Jones Bart W → Kipling Sand & Gravel Inc → KIPLING PIT**

- 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:** Kipling Sand & Gravel Inc → KIPLING PIT; 1993-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jones Bart W → KIPLING PIT; 1993-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jones Bart W → Kipling Sand & Gravel Inc; 1993-06-01 to current/open; source msha-controller-operator-history