# Relationship history for MSHA mine 4300391

Current hierarchy: **Sean  O'Donovan → SEAN O'DONOVAN → POWNAL PIT**

- 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

- **operator_operates_mine:** R L Barlow Inc → POWNAL PIT; 1985-04-01 to 2016-10-22; source msha-controller-operator-history
- **controller_controls_mine:** R L Barlow Inc → POWNAL PIT; 1985-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** R L Barlow Inc → R L Barlow Inc; 1985-04-01 to 2016-10-22; source msha-controller-operator-history
- **operator_operates_mine:** Maxon Trucking Limited → POWNAL PIT; 2016-10-23 to 2022-07-27; source msha-controller-operator-history
- **controller_controls_mine:** Priscilla G  Maxon → POWNAL PIT; 2016-10-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Priscilla G  Maxon → Maxon Trucking Limited; 2016-10-23 to 2022-07-27; source msha-controller-operator-history
- **operator_operates_mine:** Sean O'Donovan → POWNAL PIT; 2022-07-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sean  O'Donovan → POWNAL PIT; 2022-07-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sean  O'Donovan → Sean O'Donovan; 2022-07-28 to current/open; source msha-controller-operator-history