X0306 4 2016-04-08 0 0001394074 Spectra Energy Partners, LP SEP 0001373835 Spectra Energy Corp. 5400 WESTHEIMER COURT HOUSTON TX 77056 0 0 1 1 Director by Deputization 0001051116 Spectra Energy Capital, LLC 5400 WESTHEIMER COURT HOUSTON TX 77056 0 0 1 0 0001404855 Spectra Energy Transmission, LLC 5400 WESTHEIMER COURT HOUSTON TX 77056 0 0 1 0 0001404854 Spectra Energy Southeast Pipeline Corp. 5400 WESTHEIMER COURT HOUSTON TX 77056 0 0 1 0 0001394072 Spectra Energy Partners GP, LLC 5400 WESTHEIMER COURT HOUSTON TX 77056 0 0 1 0 0001394073 Spectra Energy Partners (DE) GP, LP 5400 WESTHEIMER COURT HOUSTON TX 77056 0 0 1 0 Common Units representing limited partner interests 2016-04-08 4 A 0 9056136 45.96 A 229131442 I See footnotes On April 8, 2016, pursuant to the Common Purchase Unit Agreement, dated as of April 4, 2016, by and between the Issuer and Spectra Energy Corp ("Spectra Energy"), the Issuer agreed to issue and sell, and Spectra Energy agreed to purchase, through its wholly owned subsidiary, Spectra Energy Transmission, LLC ("SET"), 9,056,136 common units representing limited partnership interests in the Issuer, at a price per common unit of $45.96. As of April 8, 2016, giving effect to the reported transaction, SET owns a 56.8% limited partner interest in the Issuer. Spectra Energy Capital, LLC ("Spectra Energy Capital") owns 100% of SET and Spectra Energy owns 100% of Spectra Energy Capital. Accordingly, Spectra Energy, Spectra Energy Capital, and SET may be deemed to beneficially own all of the reported securities. As of April 8, 2016, Spectra Energy Partners (DE) GP, LP (the "General Partner") owns a 17.0% limited partner interest in the Issuer. Spectra Energy Partners GP, LLC ("SEP GP LLC") owns a 1% general partner interest in the General Partner, SET owns a 49.5% limited partner interest in the General Partner, and Spectra Energy Southeast Pipeline Corporation ("SE Southeast Pipeline") owns a 49.5% limited partner interest in the General Partner. SET owns 100% of each of SEP GP LLC and SE Southeast Pipeline, Spectra Energy Capital owns 100% of SET, and Spectra Energy owns 100% of Spectra Energy Capital. Accordingly, Spectra Energy, Spectra Energy Capital, SET, SE Southeast Pipeline, SEP GP LLC and the General Partner may be deemed to beneficially own some or all of the reported securities. /s/ Annachiara Jones, Assistant Secretary for Spectra Energy Corp 2016-04-12 /s/ Annachiara Jones, Secretary for Spectra Energy Capital, LLC 2016-04-12 /s/ Annachiara Jones, Secretary for Spectra Energy Transmission, LLC 2016-04-12 /s/ Annachiara Jones, Secretary for Spectra Energy Southeast Pipeline Corporation 2016-04-12 /s/ Annachiara Jones, Assistant Secretary for Spectra Energy Partners GP, LLC 2016-04-12 /s/ Annachiara Jones, Assistant Secretary for Spectra Energy Partners GP, LLC, as general partner of Spectra Energy Partners (DE) GP, LP 2016-04-12