X0306 4 2014-06-05 0 0001578932 OCI Partners LP OCIP 0001225310 GREGORY NATHANIEL A C/O OCI PARTNERS LP 5470 N. TWIN CITY HIGHWAY NEDERLAND TX 77627 1 0 0 1 SEE REMARKS COMMON UNITS (LIMITED PARTNER INTERESTS) 2014-06-05 4 P 0 5000 20.0105 A 5000 D The price reported in Column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $20.00 to $20.07, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the ranges set forth in this footnote. The Reporting Person is a director of OCI GP LLC, the general partner of the Issuer (the "General Partner"). The Issuer is managed by the directors and executive officers of the General Partner. /s/ Fady Kiama, Attorney-in-Fact for Nathaniel A. Gregory 2014-06-06