Head of PA DEP Oil & Gas Division Departs Industrywide Issues | Pennsylvania | Regulation | Statewide PA May 29, 2014May 29, 2014 Alan Eichler has worked in the Oil and Gas Management division of the Pennsylvania Dept. of Environmental Protection (DEP) for the past 28 years. For a number of years Alan has been the head of the Oil and Gas Management division. Now he’s gone… Please Login to view this content. (Not a member? Join Today!) Related