Slightly weaker for gasoline prices at the start of this week has suggested for many traders that the product markets aren't as concerned with Middle East supply issues as the crude oil market. Reports of increased gasoline imports into Brazil next year and concerns of lower US ethanol production in the wake of subsidy changes may at least partially responsible for the gains in gasoline during the last three weeks. There was a minor supply glitch seen in Colombia late last week, which may be another supply side issue for the market to digest.