Opposition from independent petroleum oil refiners to RFS changes almost derailed a House-passed E15 bill in May. SNAP is another big issue to watch ahead of ag committee debate next week on the new farm bill. The revised farm bill would push the effective cost-sharing date by one year to FY29. Senate Ag Chairman John Boozman, R-Ark., said the overall revised farm bill is aimed at bolstering the ag sector and rural America. MCOOLThe farm bill markup on Thursday is sure to include a raft of proposed amendments to the bill.