The spread between the two products was $1.22/gal for the week ended 11 November, compared to $1.09/gal the prior week.
US spot benzene prices last week rose amid strengthening downstream prices and a partial restart of a downstream styrene plant. US benzene sentiment also was bolstered by higher prices in Asian benzene markets.
Meanwhile, US benchmark WTI crude oil futures on 11 November were 66 cents/bbl (1.6 cents/gal) lower week on week.
The benzene-crude ratio moved higher to 2.18, up from 2.04 the prior week.
Major US benzene producers include ExxonMobil, Flint Hills Resources, LyondellBasell, Marathon Petroleum, Shell and Phillips 66.