X0306 4 2013-05-09 0 0001523733 PetroLogistics LP PDH 0001575697 Vanderhider Hallie A. 600 TRAVIS STREET, SUITE 3250 HOUSTON TX 77002 1 0 0 0 Common Units representing limited partner interests 2013-05-09 4 A 0 7819 12.79 A 7819 D The reporting person was awarded a number of Phantom Units calculated according to the closing price of the Common Units representing limited partner interests of PetroLogistics LP (the "Partnership") on May 9, 2013. Each Phantom Unit is the economic equivalent of one Common Unit and is accompanied by a Distribution Equivalent Right entitling the holder to an amount of cash equal to the value of any cash distributions paid on each of the Partnership's Common Units during the period in which the Phantom Unit is held. The Phantom Units vest into Common Units on a one-for-one basis annually. /s/ Hallie A. Vanderhider 2013-05-11