# Relationship history for MSHA mine 4607794

Current hierarchy: **Matney Danny → D & B Coal Company Inc → Jerico Auger Mine**

- 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

- **controller_controls_mine:** Matney Danny Et Al → Jerico Auger Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Larry  Lilly → Jerico Auger Mine; 1987-03-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hickory Resources Partnership → Jerico Auger Mine; 1989-11-01 to 1990-05-29; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Lilly → Hickory Resources Partnership; 1989-11-01 to 1990-05-29; source msha-controller-operator-history
- **operator_operates_mine:** D & B Coal Company Inc → Jerico Auger Mine; 1990-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matney Danny Et Al → D & B Coal Company Inc; 1990-05-30 to current/open; source msha-controller-operator-history