# Relationship history for MSHA mine 3304557

Current hierarchy: **David B Renner → Mid Ohio Aggregates LLC → Mid Ohio Aggregates**

- 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:** Mid-Ohio Resources, Inc → Mid Ohio Aggregates; 2005-11-16 to 2024-04-08; source msha-controller-operator-history
- **controller_controls_mine:** Darryl C  Lanker → Mid Ohio Aggregates; 2005-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Darryl C  Lanker → Mid-Ohio Resources, Inc; 2005-11-16 to 2024-04-08; source msha-controller-operator-history
- **controller_controls_mine:** David B Renner → Mid Ohio Aggregates; 2008-09-29 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Orrville Trucking & Grading Co → Mid Ohio Aggregates; 2024-04-09 to 2024-05-13; source msha-controller-operator-history
- **controller_controls_operator:** David B Renner → Orrville Trucking & Grading Co; 2024-04-09 to 2024-05-13; source msha-controller-operator-history
- **operator_operates_mine:** Mid Ohio Aggregates LLC → Mid Ohio Aggregates; 2024-05-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David B Renner → Mid Ohio Aggregates; 2024-05-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David B Renner → Mid Ohio Aggregates LLC; 2024-05-14 to current/open; source msha-controller-operator-history