Data / Environmental compliance / Montana / Phillips 66, Billings Refinery
Phillips 66, Billings Refinery: 2 formal enforcement actions
Updated November 7, 2026. Source: US EPA, Enforcement and Compliance History Online (ECHO).
EPA's ECHO database records 12 inspections, 2 informal enforcement actions and 2 formal enforcement actions at Phillips 66, Billings Refinery, 401 S 23rd St, Billings, MT 59101, in the five years to November 1, 2026. No penalty is recorded in that period. The facility had violations in 1 of the last 12 quarters.
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- Site
- 401 S 23rd St, Billings, MT 59101
- EPA registry ID (FRS)
- 110043806085
- Industry
- 32411 Petroleum Refineries; 324110 Petroleum Refineries; 48611 Pipeline Transportation of Crude Oil
- County
- Yellowstone
- Programs
- Clean Air Act, Clean Water Act, Hazardous waste (RCRA)
- Compliance status
- No Violation Identified
- Inspections
- 12, latest April 9, 2026
- Formal actions
- 2, latest July 30, 2024
- Informal actions
- 2, latest June 12, 2024
- Penalties
- None recorded in five years
- ECHO facility report
- echo.epa.gov
By program
Inspections, enforcement actions and penalties of the last five years in each EPA program that covers the facility, as the program systems record them. Federal case penalties are listed under federal enforcement cases. Quarters count the last 12.
| Program | Inspections | Informal actions | Formal actions | Penalties | Latest penalty | Latest amount | Quarters with violations | Quarters in significant noncompliance | Status |
|---|---|---|---|---|---|---|---|---|---|
| Clean Air Act | 2 | 0 | 0 | $0 | $150,000 | 0 | 0 | No Violation Identified | |
| Clean Water Act | 5 | 1 | 0 | $0 | $18,125 | 0 | 0 | No Violation Identified | |
| Hazardous waste (RCRA) | 5 | 1 | 0 | $0 | $0 | 1 | 0 | No Violation Identified |
Federal enforcement cases
EPA cases that name this facility, newest first. The penalty is the whole case penalty, shared with the other facilities named in the case.
| Case | Case name | Status date | Type | Status | Outcome | Statutes | Case penalty | Facilities in case | Source |
|---|---|---|---|---|---|---|---|---|---|
| 08-2024-0261 | Phillips 66, Billings Refinery NOD | July 30, 2024 | Administrative, Formal | Final Order Issued | EPCRA | $0 | 2 | echo.epa.gov | |
| 08-2019-0042 | Phillips 66 Billings Refinery | December 9, 2021 | Administrative, Formal | Closed | Final Order With Penalty | Clean Air Act | $150,000 | 2 | echo.epa.gov |
EPA inspections and evaluations
Compliance monitoring EPA itself carried out, newest first. State inspections are counted above, with the date of the latest.
| Date | Activity | Type | Law |
|---|---|---|---|
| August 22, 2022 | Inspection/Evaluation | Evaluation | Clean Water Act |
| August 22, 2022 | Inspection/Evaluation | Evaluation | Clean Water Act |
Also on SpecStream
Public domain (U.S. government work). Counts and penalties cover the five years to November 1, 2026 as ECHO publishes them in its exporter and case downloads, drawn from EPA's air, water, hazardous waste and drinking water systems and from the states that report to them. Records can be incomplete, late or corrected after this page was read. A federal case penalty that names several facilities is shown on each of them and counted once in industry, state and national totals. Each row links to EPA's own report. A quarter in significant noncompliance is EPA's term for a serious violation status in a program, not a finding of fault beyond that status. This page uses US EPA data and is not endorsed or certified by the US EPA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.