# Relationship history for MSHA mine 3608263

Current hierarchy: **Holleran Joseph → Laurel Run Corp → Blvd Strip**

- 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:** Laurel Run Corp → Blvd Strip; 1991-06-01 to 1993-02-09; source msha-controller-operator-history
- **controller_controls_mine:** Michael G  Faleski → Blvd Strip; 1991-06-01 to 1994-02-20; source msha-controller-operator-history
- **controller_controls_operator:** Michael G  Faleski → Laurel Run Corp; 1991-06-01 to 1993-02-09; source msha-controller-operator-history
- **operator_operates_mine:** Laurel Run Corp → Blvd Strip; 1993-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Holleran Joseph → Blvd Strip; 1993-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Holleran Joseph → Laurel Run Corp; 1993-02-10 to current/open; source msha-controller-operator-history