Miller Oil Co Inc.

Miller Oil Co Inc., doing business as G.W. Miller Oil Co, supplies bulk fuel, propane, gasoline, diesel, and motor oil to federal agencies and military installations across Montana as a prime contractor, competing on non-set-aside and total small business set-aside purchase orders and blanket purchase agreements. The company is a for-profit Subchapter S Corporation based in Culbertson, Montana, registered in SAM.gov since May 2000, with no SBA set-aside designations on its recent awards — the bulk of its federal work arrives through full-and-open competitive procurement and, occasionally, small-business set-asides.

Miller Oil Co's customer footprint concentrates heavily on regional federal installations. The top four funding agencies account for 72% of awards by count: the Defense Logistics Agency (11 awards), the General Services Administration Public Buildings Service Region 8 (10 awards, $676 thousand combined potential value), the Department of the Interior Fish and Wildlife Service Region 6 (1 award, $75 thousand), and the Department of the Army (1 award, $38 thousand). The GSA and Interior rankings diverge slightly — GSA dominates dollar value despite lower award count, reflecting its regional property-maintenance footprint, while the DLA places numerous task orders of lower individual value. Miller Oil Co holds a five-year sole-source Blanket Purchase Agreement with Interior's Fish and Wildlife Service Region 6 (ceiling $75 thousand through July 2027) as the exclusive fuel and petroleum-product supplier to Medicine Lake National Wildlife Refuge.

Activity has been sparse — one award per year in 2025 and 2026, down from baseline levels of one to two awards annually across prior decades — but dollars obligated ($1.7 million across all awards) exceed the combined potential value ($815 thousand), signaling that several purchase orders and task orders have been fully drawn. Miller Oil Co places the majority of its volume through Defense Logistics Agency indefinite-delivery contracts (11 awards across five named IDCs), performing petroleum-fuel and propane delivery to Army installations and border facilities. Recent representative work includes a $37.5 thousand total small business purchase order from the Department of the Army for bulk fuel to support the 260th ECS annual training at Culperson, Montana (awarded July 2026), and a $123.6 thousand non-set-aside propane-supply purchase order from GSA Region 8 at the Raymond Land Port of Entry (awarded October 2022, completed March 2025). The company operates exclusively as a prime and carries no identified subcontractors across its federal portfolio.