# Relationship history for MSHA mine 3609142

Current hierarchy: **Santino  Ferretti → N&B Enterprises → Marvine Bank/Dickson City Bank**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** Gene B  Gangloff → Marvine Bank/Dickson City Bank; 2002-05-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** West Penn Contracting → Marvine Bank/Dickson City Bank; 2003-05-08 to 2003-12-15; source msha-controller-operator-history
- **controller_controls_mine:** Edward G  Krout → Marvine Bank/Dickson City Bank; 2003-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward G  Krout → West Penn Contracting; 2003-05-08 to 2003-12-15; source msha-controller-operator-history
- **operator_operates_mine:** Devil's Hole, Inc. → Marvine Bank/Dickson City Bank; 2003-12-16 to 2005-05-15; source msha-controller-operator-history
- **controller_controls_operator:** Gene B  Gangloff → Devil's Hole, Inc.; 2003-12-16 to 2005-05-15; source msha-controller-operator-history
- **operator_operates_mine:** N&B Enterprises → Marvine Bank/Dickson City Bank; 2005-05-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Santino  Ferretti → Marvine Bank/Dickson City Bank; 2005-05-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Santino  Ferretti → N&B Enterprises; 2005-05-16 to current/open; source msha-controller-operator-history