The following video is from Thursday's Digging for Value in which host Alison Southwick and Motley Fool energy analysts Joel South and Taylor Muckerman dig into the most exciting stories in energy investing today.

Valero Energy (NYSE:VLO) has asked the Obama administration to waive the ethanol mandate in gasoline immediately, due to the recent skyrocketing costs of the Renewable Identification Numbers. In this segment, Joel takes a look at the EPA and Valero, and discusses how this mandate and the rising cost of ethanol are hurting American refiners today.

Alison Southwick has no position in any stocks mentioned. Joel South has no position in any stocks mentioned. Taylor Muckerman has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not 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.