# Relationship history for MSHA mine 4607651

Current hierarchy: **Dulaney Lowell J → Braxton Minerals Inc → Baker Ridge Surface 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Blankenship Paul → Baker Ridge Surface Mine; 1988-10-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dulaney Lowell J → Baker Ridge Surface Mine; 1988-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Paul'S Construction Inc → Baker Ridge Surface Mine; 1989-01-01 to 1989-10-01; source msha-controller-operator-history
- **controller_controls_operator:** Blankenship Paul → Paul'S Construction Inc; 1989-01-01 to 1989-10-01; source msha-controller-operator-history
- **operator_operates_mine:** Braxton Minerals Inc → Baker Ridge Surface Mine; 1989-10-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dulaney Lowell J → Braxton Minerals Inc; 1989-10-02 to current/open; source msha-controller-operator-history