# Relationship history for MSHA mine 0801274

Current hierarchy: **Bill  Chandler; Doug  Connor → Indian River Mining Inc → INDIAN RIVER MINING**

- 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:** Indian River Mining Inc → INDIAN RIVER MINING; 1999-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bill  Chandler et al → INDIAN RIVER MINING; 1999-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bill  Chandler et al → Indian River Mining Inc; 1999-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Doug  Connor et al → Indian River Mining Inc; 1999-05-01 to current/open; source msha-controller-operator-history