# Relationship history for MSHA mine 3401010

Current hierarchy: **Hanes Floyd → Randall & Blake Of Oklahoma Inc → Danger Creek**

- 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:** Randall & Blake Inc → Danger Creek; 1977-05-01 to 1982-11-17; source msha-controller-operator-history
- **controller_controls_mine:** Randall & Blake Inc → Danger Creek; 1977-05-01 to 1982-11-17; source msha-controller-operator-history
- **controller_controls_operator:** Randall & Blake Inc → Randall & Blake Inc; 1977-05-01 to 1982-11-17; source msha-controller-operator-history
- **operator_operates_mine:** Randall & Blake Of Oklahoma Inc → Danger Creek; 1982-11-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hanes Floyd → Danger Creek; 1982-11-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hanes Floyd → Randall & Blake Of Oklahoma Inc; 1982-11-18 to current/open; source msha-controller-operator-history