Phillips 66 (PSX 0.70%)is up close to 80% since being spun off from its parent company ConocoPhillips in April 2012. The refiner continues to impress after announcing last quarter's results yesterday, smashing analyst estimates with non-GAAP EPS of $2.06. In this video, Motley Fool energy analyst Joel South gives investors some of the specifics behind another strong quarter for Phillips 66, and tells us what has driven its excellent cash flow and its fantastic equivalent year over year growth.