# Relationship history for MSHA mine 0801282

Current hierarchy: **McDonald Investment Company Inc → MID Coast Aggregates LLC → Mid-Coast Aggregates LLC-Mazak 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:** Darryl C  Lanker → Mid-Coast Aggregates LLC-Mazak Mine; 1986-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ronald M  Bergeron Sr → Mid-Coast Aggregates LLC-Mazak Mine; 1988-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bergeron Sand Rock & Aggregate Inc → Mid-Coast Aggregates LLC-Mazak Mine; 2000-02-01 to 2001-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Ronald M  Bergeron Sr → Bergeron Sand Rock & Aggregate Inc; 2000-02-01 to 2001-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Ocala Bedrock, Inc., DBA Bedrock Resources → Mid-Coast Aggregates LLC-Mazak Mine; 2001-10-01 to 2002-07-23; source msha-controller-operator-history
- **controller_controls_operator:** Darryl C  Lanker → Ocala Bedrock, Inc., DBA Bedrock Resources; 2001-10-01 to 2002-07-23; source msha-controller-operator-history
- **operator_operates_mine:** Florida Mining Corporation → Mid-Coast Aggregates LLC-Mazak Mine; 2002-07-24 to 2005-12-15; source msha-controller-operator-history
- **controller_controls_mine:** Paul  Mazak II → Mid-Coast Aggregates LLC-Mazak Mine; 2002-07-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Mazak II → Florida Mining Corporation; 2002-07-24 to 2005-12-15; source msha-controller-operator-history
- **operator_operates_mine:** MID Coast Aggregates LLC → Mid-Coast Aggregates LLC-Mazak Mine; 2005-12-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** McDonald Investment Company Inc → Mid-Coast Aggregates LLC-Mazak Mine; 2005-12-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** McDonald Investment Company Inc → MID Coast Aggregates LLC; 2005-12-16 to current/open; source msha-controller-operator-history