Air Quality | Par Montana, LLC., - Billing Refinery

The Department of Environmental Quality has prepared a Proposed Permit regarding Operating Permit #OP1564-22, for Par Montana, LLC. - Billings Refinery.

Location:

• Section 25, Township 1 North, Range 26 East

• Yellowstone County

Associated Materials:

• OP1564-22
• TRD1564-22

EPA Review Period Ends: 

• July 17, 2025 11:59PM

Contact: John P. Proulx

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Tags: Air and Public Notice