In a piece from Marketplace about the U.S.' relationship with Canadian oil supplies, Harris Prof. Ryan Kellogg was called upon as an expert source. 

All of that capacity was built before the shale boom started. And all of a sudden, we had all this really nice, light, sweet crude available in the U.S.,” Kellogg said. “So, we’re now in this position where we have these very high-tech refineries that can process the really heavy crude.

Read the full story here: https://www.marketplace.org/2024/08/13/why-canada-has-become-a-critical-supplier-of-crude-oil-to-the-u-s/