In the following video, energy contributors Tyler Crowe and Aimee Duffy discuss what this earnings season shows us about the continuing boom in the American oil-refining industry. Tyler goes into what the earnings reports for Valero Energy (NYSE:VLO) and Marathon Petroleum (NYSE:MPC) looked like and highlights how both companies were able to exceed expectations based on the continuing glut of available cheap crude, and he tells us what he's going to be looking for to get a clearer picture of where the industry as a whole is heading.

Fool contributors Aimee Duffy and Tyler Crowe have no position in any stocks mentioned. The Motley Fool owns shares of Western Refining. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.