# Relationship history for MSHA mine 0503818

Current hierarchy: **Oxbow Carbon LLC → Oxbow Mining, LLC → Terror Creek Loadout**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Terror Creek Company → Terror Creek Loadout; 1982-10-01 to 2010-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Oxbow Carbon LLC → Terror Creek Loadout; 1982-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Oxbow Carbon LLC → Terror Creek Company; 1982-10-01 to 2010-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Oxbow Carbon LLC → Terror Creek Loadout; 1995-09-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Terror Creek LLC → Terror Creek Loadout; 2010-09-01 to 2015-05-03; source msha-controller-operator-history
- **controller_controls_mine:** Oxbow Carbon LLC → Terror Creek Loadout; 2010-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Oxbow Carbon LLC → Terror Creek LLC; 2010-09-01 to 2015-05-03; source msha-controller-operator-history
- **operator_operates_mine:** Oxbow Mining, LLC → Terror Creek Loadout; 2015-05-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Oxbow Carbon LLC → Oxbow Mining, LLC; 2015-05-04 to current/open; source msha-controller-operator-history