Proxy Group INGAA Post-technical Conference Supplemental Workpaper 3-12-08

Attached to the Interestate Natural Gas Association of America (“INGAA”)’s post-technical conference supplemental comments is an affidavit of its witness, Dr. Michael J. Vilbert, in response to the Reply Comments of the State of Alaska. Dr. Vilbert’s affidavit, Table 1, references a workpaper.