EXHIBIT 21

El Paso Pipeline Partners, L.P.

Ownership List as of December 31, 2011

	Jurisdiction of
Company Name	Incorporation		% Held
El Paso Pipeline Partners, L.P.		Delaware
El Paso Pipeline Partners Operating Company, L.L.C.		Delaware		100.00
Elba Express Company, L.L.C.		Delaware		100.00
EPPP CIG GP Holdings, L.L.C.		Delaware		100.00
Colorado Interstate Gas Company, L.L.C.		Delaware		86.00
CIG Funding Company, L.L.C.		Delaware		100.00
Colorado Interstate Issuing Corporation		Delaware		100.00
WYCO Development LLC		Colorado		50.00
Southern Natural Gas Company, L. L.C.		Delaware		100.00
Bear Creek Storage Company, L.L.C.		Louisiana		50.00
SNG Funding Company, L.L.C.		Delaware		100.00
Southern Natural Issuing Corporation		Delaware		100.00
Southern LNG Company, L.L.C.		Delaware		100.00
Wyoming Interstate Company, L.L.C.		Delaware		100.00