X0205 3 2012-05-03 0 0001523733 PetroLogistics LP PDH 0001077430 GOLDBERG ALAN E 630 FIFTH AVENUE, 30TH FLOOR NEW YORK NY 10111 1 0 1 0 Common Units representing limited partner interest 137225000 I See footnote As of the date hereof, LG Propylene LLC ("LGP") is the record holder of 1,100,000 common units ("Common Units") representing limited partner interests in PetroLogistics LP. In addition, LGP has the right to appoint six members of the ten-member board of managers of PL Manufacturing LLC, the sole member of Propylene Holdings LLC ("Holdings"). Holdings is the record holder of 136,125,000 Common Units. Through his control over a series of affiliated investment funds, the reporting person may be deemed to beneficially own the Common Units held of record by LGP and Holdings. The reporting person disclaims beneficial ownership of such Common Units, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for the purpose of Section 16 or for any other purpose, except to the extent of his pecuniary interest therein. /s/ Alan E. Goldberg 2012-05-03