Spectra Energy Partners, an L.P. formed to own and operate natural gas transportation and storage assets, filed for IPO Friday. Citigroup and Lehman Brothers are bookrunning the deal. Terms have not yet been announced.

Spectra Energy Partners, an L.P. formed to own and operate natural gas transportation and storage assets, filed for IPO Friday. Citigroup and Lehman Brothers are bookrunning the deal. Terms have not yet been announced.