# Relationship history for MSHA mine 1202449

Current hierarchy: **CASEY  DILLON; NICK  DILLON → Atlas Excavating, Inc. → Atlas Excavating, Inc.**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Atlas Excavating, Inc. → Atlas Excavating, Inc.; 2011-10-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tina  Dillon → Atlas Excavating, Inc.; 2011-10-21 to 2026-01-13; source msha-controller-operator-history
- **controller_controls_operator:** Tina  Dillon → Atlas Excavating, Inc.; 2011-10-21 to 2026-01-13; source msha-controller-operator-history
- **controller_controls_mine:** CASEY  DILLON ET AL → Atlas Excavating, Inc.; 2026-01-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CASEY  DILLON ET AL → Atlas Excavating, Inc.; 2026-01-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** NICK  DILLON ET AL → Atlas Excavating, Inc.; 2026-01-14 to current/open; source msha-controller-operator-history