Phillips 66 and Ames-based Renewable Energy Group Inc. announced they are discontinuing their joint effort to construct a large-scale renewable diesel plant in Ferndale, Wash. The project has been canceled due to permitting delays and uncertainties, the companies said in a news release. Originally announced in fall 2018, the 250 million gallon per year Ferndale Refinery project would have resulted in the largest renewable diesel refinery on the West Coast. “Although we are disappointed in this result, REG is undeterred and continues to develop numerous opportunities to grow our renewable diesel production,” said Cynthia “CJ” Warner, Renewable Energy Group CEO.