# Relationship history for MSHA mine 4407093

Current hierarchy: **O A  Stump Jr → Double A Mining, Inc. → No. 1**

- 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:** Double A Mining, Inc. → No. 1; 2004-02-05 to 2004-04-12; source msha-controller-operator-history
- **controller_controls_mine:** Steven Rocky  Justus → No. 1; 2004-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steven Rocky  Justus → Double A Mining, Inc.; 2004-02-05 to 2004-04-12; source msha-controller-operator-history
- **operator_operates_mine:** Double A Mining, Inc. → No. 1; 2004-04-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** O A  Stump Jr et al → No. 1; 2004-04-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** O A  Stump Jr et al → Double A Mining, Inc.; 2004-04-13 to current/open; source msha-controller-operator-history