# Relationship history for MSHA mine 1519372

Current hierarchy: **Blackhawk Mining LLC → Blackhawk Mining LLC → Blackhawk #1 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:** John M  Potter et al → Blackhawk #1 Surface Mine; 2005-11-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** General Equipment Sales Inc → Blackhawk #1 Surface Mine; 2009-01-12 to 2010-07-11; source msha-controller-operator-history
- **controller_controls_mine:** Wayne J  Moseley → Blackhawk #1 Surface Mine; 2009-01-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wayne J  Moseley → General Equipment Sales Inc; 2009-01-12 to 2010-07-11; source msha-controller-operator-history
- **operator_operates_mine:** Eagle Creek Mining LLC → Blackhawk #1 Surface Mine; 2010-07-12 to 2011-01-06; source msha-controller-operator-history
- **controller_controls_operator:** John M  Potter et al → Eagle Creek Mining LLC; 2010-07-12 to 2011-01-06; source msha-controller-operator-history
- **controller_controls_operator:** Thomas A  Potter et al → Eagle Creek Mining LLC; 2010-07-12 to 2011-01-06; source msha-controller-operator-history
- **controller_controls_mine:** John M  Potter et al → Blackhawk #1 Surface Mine; 2010-07-16 to 2013-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Blackhawk Mining LLC → Blackhawk #1 Surface Mine; 2011-01-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John M  Potter et al → Blackhawk Mining LLC; 2011-01-07 to 2013-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Thomas A  Potter et al → Blackhawk Mining LLC; 2011-01-07 to 2013-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Blackhawk Mining LLC → Blackhawk #1 Surface Mine; 2013-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Blackhawk Mining LLC; 2013-07-01 to current/open; source msha-controller-operator-history