Calumet Announces CMR Asset Lease Details and Revised Agreement with Warburg Pincus

Calumet restructures Montana Renewables with $30M lease income, streamlined capital, and full control.

What the company is saying

Calumet, Inc. is announcing two linked transactions to accelerate the MaxSAF® expansion at its Montana Renewables subsidiary. The company emphasizes a new long-term lease of key refining assets from Calumet Montana Refining (CMR) to Montana Renewables (MRL), projecting $30 million in annual lease income for CMR. Calumet also highlights an amended agreement with Warburg Pincus, where Warburg exchanges its 13.17% equity in Montana Renewables Holdings (MRH) for warrants covering up to 8% of MRH equity, exercisable only above a $750 million valuation, and receives an increased preferred return rate of 11.5%. CEO Todd Borgmann frames these moves as capturing 70% of the original economic benefit for just 15% of the planned capital, and positions the company as a leading SAF producer with strong institutional support from Warburg Pincus and the U.S. Department of Energy. The announcement stresses the capital efficiency of the revised plan, the operational advantages of redeployed assets, and the strategic importance of full equity control in MRL.

What the data suggests

The transactions immediately increase Calumet’s equity interest in Montana Renewables from 86.83% to 100% (or 92% if Warburg’s warrants are exercised at a $750 million strike). CMR will receive $30 million per year in lease income from MRL, a new recurring revenue stream. Warburg Pincus’s preferred units rise from $346 million to $395 million, and its preferred return rate jumps from 8% to 11.5%, reflecting a higher cost of capital for Calumet but a more streamlined equity structure. The revised MaxSAF® expansion requires $137 million in remaining capital, a dramatic reduction from the $1.2 billion originally contemplated, while targeting 200 million gallons of annual SAF production and 17,000 barrels per day of total product sales by year-end 2028. The company claims to capture 70% of the economic benefit for 15% of the capital, but does not provide a detailed breakdown or operational evidence for these percentages. The operational improvements (higher SAF yields, reduced by-product) are described in qualitative terms without supporting data. Overall, the hard numbers show a shift to recurring income, lower capital intensity, and full control, but operational delivery remains to be demonstrated.

Analysis

The announcement is positive in tone and discloses several realised financial transactions, such as the executed long-term lease agreement and amended equity arrangements with Warburg Pincus. These are supported by specific figures for lease income, capital spend, and equity changes. However, the most material operational benefits—namely, the targeted 200 million gallons of annual SAF production and 17,000 barrels per day of product sales—are forward-looking and projected for year-end 2028, making the execution distance long-term. While the capital outlay has been reduced to $137 million from the originally planned $1.2 billion, this is still a significant investment with benefits that will not be realised for over two years. The claim of capturing 70% of the economic benefit for 15% of the capital is not substantiated with detailed calculations or operational evidence. No profitability metrics (net income, EBITDA, operating profit, or free cash flow) are disclosed, so the true_signal cannot exceed weak_positive. The language around operational improvements (higher SAF yields, reduced by-product) is not backed by quantifiable data, inflating the narrative relative to the evidence.

Risk flags

• ●The $137 million remaining capital spend, while much lower than the original $1.2 billion, still requires successful execution of the MaxSAF® expansion plan; delays or cost overruns could erode projected returns.
• ●Operational targets, including 200 million gallons of annual SAF production and 17,000 barrels per day of sales by 2028, are forward-looking and not supported by current production data, leaving a multi-year execution gap.
• ●Warburg Pincus’s preferred return rate increases from 8% to 11.5%, and preferred units rise to $395 million, raising Calumet’s cost of capital and potentially impacting future cash flows if operational targets are not met.
• ●The claim of capturing 70% of the economic benefit for 15% of the capital is not substantiated with detailed calculations or operational evidence, making it difficult to independently verify the true economic upside.
• ●The lease income of $30 million per year is subject to certain adjustments, and the long-term sustainability of this revenue stream depends on MRL’s operational performance and market demand for SAF.

Bottom line

Calumet’s restructuring of Montana Renewables delivers immediate financial benefits: $30 million in annual lease income, full equity control, and a sharply reduced capital requirement for the MaxSAF® expansion. The company’s narrative is credible in terms of financial engineering and capital efficiency, but operational claims—such as higher SAF yields and reduced by-products—lack quantifiable evidence. Warburg Pincus’s shift from equity to warrants and a higher preferred return increases Calumet’s cost of capital but simplifies the ownership structure. The most important takeaway is that while the financial foundation for expansion is now in place, the operational and market delivery of 200 million gallons of SAF by 2028 remains unproven. Investors should focus on future updates that provide realized production data and evidence of operational progress.

Announcement summary

(NASDAQ:CLMT) Calumet, Inc. announced two transactions to support the continued development of Montana Renewables, LLC (MRL) and advance the company's MaxSAF® expansion plans. Calumet Montana Refining, LLC (CMR), a restricted subsidiary, entered into a long-term lease agreement with MRL for certain CMR assets used in the expansion. The lease agreement is expected to provide CMR with approximately $30 million of annual lease income, subject to certain adjustments. The leased assets will enable MRL to increase SAF production volume, capture renewable propane, reduce naphtha yield, and increase total throughput. Calumet also amended its existing agreement with Warburg Pincus LLC, under which Warburg Pincus will exchange its 13.17% ownership in Montana Renewables Holdings LLC (MRH) for warrants to acquire up to 8% of MRH's common equity, exercisable above a $750 million common equity value. Warburg Pincus's preferred return rate will increase to 11.5%. The agreements are designed to capture 70% of the originally expected economic project benefit for approximately 15% of the planned capital. The revised MaxSAF® expansion plan involves redeploying selected CMR assets to MRL under a long-term lease, including a hydrotreater, hydrogen plant, naphtha splitter, and equipment to recover renewable propane. The hydrotreater will create a proprietary dual reactor system that delivers higher SAF yields and reduces by-product production and yield loss. CMR will continue to operate its asphalt production facility. The expansion aims to reach approximately 200 million gallons of annual Sustainable Aviation Fuel (SAF) production and 17,000 barrels per day of total product sales by year-end 2028. The total remaining project capital spend for this expansion is $137 million, compared to the $1.2 billion megaproject originally contemplated in the U.S. Department of Energy (DOE) loan. As of November 4, 2026, Calumet's intercompany instruments remain at approximately $398 million, with the blended rate increasing from ~9.7% to 11%. CMR's lease payment from MRL increases from $0 per year to $30 million per year. Calumet's equity interest in MRL increases from 86.83% to 100% (or 92% assuming warrants are exercised at the $750 million equity strike). Warburg Pincus's preferred units increase from approximately $346 million to approximately $395 million, and the preferred unit rate (IRR) increases from 8% to 11.5%. Warburg Pincus's equity interest in MRL decreases from 13.17% to 0% (with 8% warrants at the $750 million equity strike). MRL is one of only three SAF producers running at commercial scale in North America. Calumet operates twelve facilities throughout North America.

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