The battle over the future of the Renewable Fuel Standard (RFS) continued last week. Both biofuel proponents and petroleum interests brought groups to Washington to rally for their cause, and both cited studies that backed up their positions.

More White House meetings on the RFS have been set for this week, as the Trump administration looks for a compromise. Also, several lawmakers are pushing legislative fixes.

The oil interests are focused on finding a way to cap the price of Renewable Identification Numbers (RINs), the tradeable credits used to...