HF Sinclair inks supply deals amid pending segment spinoff, refinery closure
HF Sinclair Corp. said it signed long-term supply deals to support its lubricants and specialties segment transition alongside a planned retirement of its 15,600 b/d Mississauga, Ontario base oil refinery. According to HF Sinclair, SK Enmove will supply Group III base oils and Chevron Products Group II. The lubricants-specialties separation is expected in 12-18 months, with refinery retirement largely completed by end-2027.
How this was made

The 30-second read
Why it matters
By securing Group II and Group III base oil supply from Chevron Products and SK Enmove, HF Sinclair aims to maintain coverage during the refinery retirement and preserve continuity for distribution of YUBASE and Chevron-branded products.
Market read
Fresh procurement and distribution contract details tied to the spinoff reduce operational continuity risk and may support valuation for the separated lubricants and specialties business.
What to watch
The article does not quantify contract volumes, pricing formulas, or duration beyond “long-term,” so traders should watch for later filings that clarify economics and any take-or-pay or indexation terms.
Background
HF Sinclair is transforming and separating its lubricants and specialties segment into an independent public company while retiring its 15,600 b/d Mississauga base oil plant.
Market effects
May signal tighter, more contract-driven base oil sourcing and distribution models during refinery rationalizations in North America.
Ontario and broader North American base oil and lubricants supply chains could see re-routing as Mississauga refining winds down by yearend 2027.
Could influence how global Group II and Group III base oil suppliers structure long-term offtake and regional distribution partnerships.
Counterpoint
Long-term agreements may not fully offset margin pressure if demand weakens or if Group II and Group III pricing diverges from HF Sinclair’s cost assumptions post-separation.
Key entities
- companyHF Sinclair Corp.
Subject of the article, planning a lubricants and specialties segment separation and Mississauga refinery retirement.
- supplierSK On Co. Ltd.
Parent of SK Enmove, supplying Group III base oils under a strategic long-term agreement.
- supplierSK Enmove
Contracted supplier of Group III base oils and distribution partner for YUBASE in North America.
- supplierChevron USA Inc.
Parent of Chevron Products Co., supplying Group II base oils under a strategic long-term agreement.
- supplierChevron Products Co.
Contracted supplier of Group II base oils and distribution partner for Chevron-branded products in Canada and select US regions.

