# Relationship history for MSHA mine 3610234

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

- 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:** Matt A Kilmer → PETROSKY; 2017-04-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rock-N-Wood LLC → PETROSKY; 2018-04-09 to 2023-03-19; source msha-controller-operator-history
- **controller_controls_mine:** Donald  Twining → PETROSKY; 2018-04-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donald  Twining → Rock-N-Wood LLC; 2018-04-09 to 2023-03-19; source msha-controller-operator-history
- **operator_operates_mine:** Matt Kilmer Flagstone → PETROSKY; 2023-03-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matt A Kilmer → Matt Kilmer Flagstone; 2023-03-20 to current/open; source msha-controller-operator-history