PROPANE MANAGEMENT SYSTEMS Warren Van Wyck has been the General Manager of Propane Management Systems, LLC for the past nine years and started in the propane business in 1997 as a District Manager for Ferrellgas. He is the architect of PMSAR Software and PMS Mobile Tablet Delivery and Service Software. Warren and the team at Propane Management Systems have a system designed by propane people for propane people. Warren has been a speaker at numerous propane conventions and engages in many sponsorship opportunities to help our industry.