# Phillips 66 Billings Refinery
> **Administrative - Formal** · FY2019 · — · Final Order With Penalty
## Case
- **Activity ID:** `3601844267`
- **Case Number:** 08-2019-0042
- **Type:** Administrative - Formal
- **Lead:** EPA
- **Outcome:** Final Order With Penalty
- **Penalty assessed:** —
- **Cost recovery:** —
- **Compliance action $:** —
- **Multimedia (multi-env):** —
## Defendants
- Phillips 66 Billings Refinery (complaint) (settlement)
## Summary

At various times from May 16, 2010, to September 30, 2018 the Main Plant Flare at Phillips 66 - Billings Refinery was operated with an Assist Steam-to-Flare Vent Gas ratio that increased the likelihood of flame quenching
and reduced combustion efficiency.

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*Source: [EPA ECHO](https://echo.epa.gov/) · AI Analytics · CC0 1.0*