# Relationship history for MSHA mine 2302357

Current hierarchy: **Corles R  Stehlik → County Line Stone LLC → County Line Stone LLC**

- 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:** County Line Stone LLC → County Line Stone LLC; 2007-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Corles R  Stehlik  et al → County Line Stone LLC; 2007-03-09 to 2010-07-18; source msha-controller-operator-history
- **controller_controls_operator:** Corles R  Stehlik  et al → County Line Stone LLC; 2007-03-09 to 2010-07-18; source msha-controller-operator-history
- **controller_controls_operator:** Brian S  Stehlik  et al → County Line Stone LLC; 2007-03-09 to 2010-07-18; source msha-controller-operator-history
- **controller_controls_mine:** Corles R  Stehlik → County Line Stone LLC; 2010-07-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Corles R  Stehlik → County Line Stone LLC; 2010-07-19 to current/open; source msha-controller-operator-history