# Relationship history for MSHA mine 4103976

Current hierarchy: **Delvin H  Hoot; Diana L  Hoot → Delven H Hoot → Delven Hoot**

- 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:** E R  Hoot → Delven Hoot; 1987-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** H & S Rental Inc → Delven Hoot; 1997-09-01 to 1999-02-12; source msha-controller-operator-history
- **controller_controls_mine:** Larry W  Hargrave → Delven Hoot; 1997-09-01 to 1999-02-12; source msha-controller-operator-history
- **controller_controls_operator:** Larry W  Hargrave → H & S Rental Inc; 1997-09-01 to 1999-02-12; source msha-controller-operator-history
- **operator_operates_mine:** E R Hoot → Delven Hoot; 1999-02-13 to 2003-08-31; source msha-controller-operator-history
- **controller_controls_operator:** E R  Hoot → E R Hoot; 1999-02-13 to 2003-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Delven H Hoot → Delven Hoot; 2003-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Diana L  Hoot et al → Delven Hoot; 2003-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Diana L  Hoot et al → Delven H Hoot; 2003-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Delvin H  Hoot et al → Delven H Hoot; 2003-09-01 to current/open; source msha-controller-operator-history