# Relationship history for MSHA mine 3610214

Current hierarchy: **Matt A Kilmer → MATT KILMER FLAGSTONE LLC → MATT KILMER FLAGSTONE**

- 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:** Matt Kilmer Flagstone LLC → MATT KILMER FLAGSTONE; 2017-04-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Matt A Kilmer → MATT KILMER FLAGSTONE; 2017-04-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matt A Kilmer → Matt Kilmer Flagstone LLC; 2017-04-12 to current/open; source msha-controller-operator-history