# Relationship history for MSHA mine 3607056

Current hierarchy: **Slusser Bruce & Harold Klemow → Stoney Creek Mining → Black Creek Strip #2**

- 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:** Pazzalia Richard → Black Creek Strip #2; 1979-06-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Costa Anthony Peter Sr → Black Creek Strip #2; 1979-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lackawanna Contracting Company Inc → Black Creek Strip #2; 1980-11-01 to 1981-06-23; source msha-controller-operator-history
- **controller_controls_operator:** Costa Anthony Peter Sr → Lackawanna Contracting Company Inc; 1980-11-01 to 1981-06-23; source msha-controller-operator-history
- **operator_operates_mine:** Pazzalia Coal Company Inc → Black Creek Strip #2; 1981-06-24 to 1984-08-16; source msha-controller-operator-history
- **controller_controls_operator:** Pazzalia Richard → Pazzalia Coal Company Inc; 1981-06-24 to 1984-08-16; source msha-controller-operator-history
- **operator_operates_mine:** Stoney Creek Mining → Black Creek Strip #2; 1984-08-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Slusser Bruce & Harold Klemow → Black Creek Strip #2; 1984-08-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Slusser Bruce & Harold Klemow → Stoney Creek Mining; 1984-08-17 to current/open; source msha-controller-operator-history