Price increases continued to buffet the U.S. base oil market the past week, this time on the naphthenic side of the industry. Several pale oil suppliers announced plans to impose markups ranging from 6 cents to 10 cents per gallon this month, and the rest of the market was expected to do likewise.
The increases in naphthenic prices come in the wake of another round of hikes by paraffinic producers during the latter half of July. The most recent previous increase for naphthenics took place in June.
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