SOUTHWEST GAS STORAGE COMPANY

Southwest Gas Storage Company is engaged in the operation of underground natural gas storage facilities in the Borchers North Storage Field, Meade County, Kansas; the North Hopeton Storage Field, Woods County, Oklahoma; the Waverly Storage Field, Morgan and Sangamon Counties, Illinois; and the Howell Storage Field, Livingston and Washtenaw Counties, Michigan.

Southwest Gas Storage provides:

• Both firm and interruptible storage service at competitive rates in its east area and west area, with a total working storage capacity of approximately 60.9 MMDth.