

· Europe’s Group I/II base oils price premium to gasoil edges down from eight-month high in mid-May.
· Group I base oil premium to gasoil still up more than $400/t since 2H Jan; Group II premium to gasoil still up more than $340/t since end-Feb.
· High base oil premiums suggest strong demand and tight supply.
· High base oil premiums incentivize refiners to boost base oils production.
· Price signal to boost base oils production comes ahead of seasonal slowdown in demand during Q3 2023.
· Asia Group I base oils premium to gasoil falls after peaking in early May at highest since end-2021.
· Base oils premium remains up more than $250/t since 2H Jan.
· Asia Group II premium to gasoil follows similar trend, still up more than $300/t since 2H Jan.
· High base oils premium incentivizes Asia-Pacific refiners to increase output.
· Signal to maintain higher output coincides with plant maintenance in NE/SE Asia, completion of maintenance in China, muted demand and further slowdown in demand in Q3.
· China’s domestic Group II light-grade premium to Shandong diesel prices falls more steeply to lowest since early February.
· Fall in base oils premium coincides with completion of more plant maintenance in China and likely rise in supply.
· Premium remains relatively firm, but speed and size of recent fall could incentivize refiners to hold off raising output.
· Fragility of base oils premium points to concern about ability of demand to absorb rise in supply.
· US Group II posted prices maintain steep premium to heating oil prices.
· Steady posted price premium contrasts with falling spot price premium to heating oil, and falling price premium to gasoil in other regions.
· High premium incentivizes refiners to maintain or increase production.