DALLAS, Texas – August 3, 2026 – HF Sinclair Corporation (NYSE: DINO) ("HF Sinclair") today announced that its Lubricants & Specialties segment has entered into strategic long-term commercial agreements with SK Enmove, CIC of SK On Co., Ltd., and Chevron Products Company, a division of Chevron U.S.A. Inc., establishing a diversified base oil supply network to support customers across North America. 

Under these agreements, SK Enmove will supply Group III base oils, and Chevron will supply Group II base oils to HF Sinclair’s Lubricants & Specialties segment. 

HF Sinclair’s Lubricant’s & Specialties business will serve as SK Enmove’s distributor for YUBASE Group III base oils in key regional markets in North America, while also distributing Chevron-branded Group II base oils in Canada and select regions of the United States.
 

"These agreements represent an important milestone in the evolution of our Lubricants & Specialties business," said Matthew Joyce, Senior Vice President and President, Lubricants & Specialties segment. 

"By establishing strategic commercial arrangements with two globally recognized leaders in base oils – SK Enmove and Chevron – we are creating a diversified supply platform that combines world-class products, strong supply security and the technical expertise our customers have come to expect from Lubricants & Specialties." 

"We are pleased to be announcing this agreement, which strengthens our North American footprint by securing a highly reliable route to market," said Jay Kim, CEO of SK Enmove. "This strategic supply arrangement combined with HF Sinclair’s Lubricants & Specialties segment’s extensive logistics network provides unmatched value to our customers throughout the region." 

"This agreement reflects our commitment to helping customers succeed through reliable supply, proven product quality, and deep technical expertise," said Alicia Logan, General Manager of Chevron Base Oils. "We're pleased to work with HF Sinclair’s Lubricants & Specialties segment, a business that shares our focus on performance and customer value." 

Together with continued access to Group I and specialty products from HF Sinclair's Tulsa refinery, these agreements position HF Sinclair’s Lubricants & Specialties business to continue offering a comprehensive portfolio of high-quality Group I, Group II and Group III base oils, supported by flexible supply arrangements and extensive technical expertise with the flexibility to expand coverage over time. 

SK Enmove is a global leader in premium Group III base oils used in high-performance lubricant formulations while Chevron is widely recognized for its broad portfolio of Group II base oils and extensive OEM qualifications.

The combination of these strategic relationships with HF Sinclair’s Lubricants & Specialties segment's formulation expertise, market knowledge and customer relationships strengthens HF Sinclair’s ability to deliver value across a broad range of lubricant and specialty applications. 

"As we continue to advance our strategy and prepare for the future, these agreements provide a strong foundation for growth and further enhance our ability to serve customers around the world," Joyce added.

These agreements support HF Sinclair’s recently announced plans to retire its base oil refining assets in Mississauga, Ontario. The transition to the new base oil solutions model is expected to be complete in the second half of 2027. 

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