number and percentage of common units representing limited partner interests (“Common Units”) of Spectra Energy
Partners, LP (the “Issuer”) reported as beneficially owned by Spectra Energy in this Schedule 13D consists
of the following: 171,570,734 Common Units owned by SE Transmission (as defined below); 8,701,329 Common Units owned
by SESSH (as defined below); and 50,217,799 Common Units owned by SEP GP (as defined below). SEP GP also owns 6,358,495 general
partner units (“General Partner Units”) of the Issuer. Each of SE Transmission, SESSH and SEP GP is an indirect,
wholly owned subsidiary of Spectra Energy.