Montana Renewables (MRL), in collaboration with Calumet Montana Refining, has officially commissioned new onsite facilities to produce and ship MaxSAF Blended, a drop-in ready, nominal 50/50 blend of renewable and fossil jet fuel.
Montana Renewables (MRL), a key player in North America’s low-carbon fuel market and a subsidiary of Calumet Inc., announced the successful commissioning and launch of its new blended Sustainable Aviation Fuel (SAF) product, MaxSAF Blended. Developed in collaboration with Calumet Montana Refining, the new product is a nominal 50/50 blend of renewable jet fuel and traditional fossil jet fuel.
The blended fuel meets the rigorous aviation industry standards, certified under both ASTM D7566 (for the synthetic paraffinic kerosene component) and ASTM D1655 specifications, confirming its drop-in compatibility with all existing aircraft and fueling infrastructure. This eliminates the need for modifications to aircraft engines or airport facilities, overcoming a major logistical hurdle for SAF adoption.
Montana Renewables and Calumet Montana Refining have commissioned dedicated onsite blending and shipping facilities at the Great Falls complex to manage the production and logistics of MaxSAF. The finished product will initially be distributed through the extensive network of AEG Fuels, targeting select aviation hubs in Montana, Washington, and Oregon.
"AEG Fuels is honored to collaborate with Montana Renewables on this landmark SAF inaugural blend," stated Landon Larson, Vice President, Supply NA at AEG Fuels. "Together, we're demonstrating how strategic partnerships can accelerate the transition to sustainable aviation and deliver real value to operators across our fueling network."
The distribution model focuses on providing a drop-in fuel solution that helps regional customers immediately begin working toward their Environmental, Social, and Governance (ESG) targets and reduce both Scope 1 (direct) and Scope 3 (value chain) emissions.
MaxSAF is positioned as a triple-benefit product for the aviation sector.
• For Montana Renewables: Sales from the truck rack open up regional service opportunities and new customer segments in the sustainable aviation market, extending the reach of their Great Falls operations. MRL's feedstocks, which include agricultural byproducts like tallow, distiller’s corn oil, canola, used cooking oil, and camelina oil sourced from Pacific Northwest farms, contribute to the regional economic impact.
• For Customers: It provides an immediate, practical solution for airlines and operators to meet their carbon reduction goals and enhance their brand leadership in sustainability without incurring capital costs for infrastructure changes.
• For the Environment: SAF significantly reduces lifecycle greenhouse gas emissions compared to traditional Jet A fuel and also offers improvements in local air quality. The use of agricultural byproducts and waste fats supports the concept of a circular economy—transforming waste into high-value, sustainable fuel.
The launch of MaxSAF Blended marks a significant step forward in making sustainable aviation fuel a commercial reality for a broader set of air travel operators across the Western United States.
