The West Coast energy market, PADD 5, is undergoing a profound transformation. Consumption of petroleum-based refined products is declining due to a host of factors including increased renewable diesel (RD) usage, slowing population growth, electric vehicle (EV) penetration and fuel efficiency improvements, just to name a few, but that’s only half the story. Further upping the stakes, crude oil production in the region has declined faster than downstream consumption, so it has had to increasingly rely on imported barrels to support its dwindling refinery throughput. In today’s RBN blog, we look at how the West Coast’s supply of refined products and crude oil has evolved over time and why its reliance on imports has grown.