# Relationship history for MSHA mine 3607784

Current hierarchy: **Mooney Robert P → Eastern Energy Corp → Read #1 Job**

- 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:** Ferdin E Wallace → Read #1 Job; 1986-03-01 to 1988-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Wallace Ferdin E → Read #1 Job; 1986-03-01 to 1988-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Wallace Ferdin E → Ferdin E Wallace; 1986-03-01 to 1988-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Energy Corp → Read #1 Job; 1988-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mooney Robert P → Read #1 Job; 1988-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mooney Robert P → Eastern Energy Corp; 1988-07-01 to current/open; source msha-controller-operator-history