# Relationship history for MSHA mine 4601816

Current hierarchy: **ERP Compliant Fuels, LLC → Pinnacle Mining Company LLC → Pinnacle 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

- **operator_operates_mine:** U. S.  Steel Mining Company LLC → Pinnacle Mine; 1950-01-01 to 2003-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Usx Corp → Pinnacle Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Usx Corp → U. S.  Steel Mining Company LLC; 1950-01-01 to 2003-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Pinnacle Mining Company LLC → Pinnacle Mine; 2003-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Questor Management Company LLC  et al → Pinnacle Mine; 2003-07-01 to 2007-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Questor Management Company LLC  et al → Pinnacle Mining Company LLC; 2003-07-01 to 2007-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Benjamin M  Statler et al → Pinnacle Mining Company LLC; 2003-07-01 to 2007-07-30; source msha-controller-operator-history
- **controller_controls_mine:** Cleveland-Cliffs Inc → Pinnacle Mine; 2007-07-31 to 2015-12-21; source msha-controller-operator-history
- **controller_controls_operator:** Cleveland-Cliffs Inc → Pinnacle Mining Company LLC; 2007-07-31 to 2015-12-21; source msha-controller-operator-history
- **controller_controls_mine:** Virginia Conservation Legacy Fund (VCLF) → Pinnacle Mine; 2015-12-22 to 2016-11-17; source msha-controller-operator-history
- **controller_controls_operator:** Virginia Conservation Legacy Fund (VCLF) → Pinnacle Mining Company LLC; 2015-12-22 to 2016-11-17; source msha-controller-operator-history
- **controller_controls_mine:** ERP Compliant Fuels, LLC → Pinnacle Mine; 2016-11-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** ERP Compliant Fuels, LLC → Pinnacle Mining Company LLC; 2016-11-18 to current/open; source msha-controller-operator-history