EX-21 4 d271449dex21.htm SUBSIDIARIES OF COLORADO INTERSTATE GAS COMPANY Subsidiaries of Colorado Interstate Gas Company

EXHIBIT 21

Colorado Interstate Gas Company, L.L.C.

Ownership List as of December 31, 2011

 

Company Name    Jurisdiction of
Incorporation		      % Held

Colorado Interstate Gas Company, L.L.C.

    Delaware     

CIG Funding Company, L.L.C.

    Delaware      100.00

Colorado Interstate Issuing Corporation

    Delaware      100.00

WYCO Development LLC

    Colorado      50.00