It has been a busy spring season for a majority of U.S. base oil and finished lubricant manufacturers, with sales reported at or above expectations and inventories on the lean side. Suppliers attributed some of the brisk activity to spring retail motor oil promotions and strong U.S. auto sales, which resulted in fairly balanced base oil stocks overall. The start of the summer driving season was also expected to see refiners slightly reduce base oil output in favor of trans-Dortation fuels.
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