Though publicly traded corporations have mostly shied away from new super PACs, one California energy giant is bucking the tide with a $2.5 million donation to a Republican group, new records show.

Chevron Corp. donated the money on Oct. 7 to the Congressional Leadership Fund, a super PAC focused on House races with close ties to Speaker John Boehner (R-Ohio).  The gift appears to be the largest contribution from a publicly traded corporation to a political group since the Supreme Court ruled in 2010 that companies could spend unlimited money on elections.