The Idaho Public Utilities Commission granted Boise, ID-based Intermountain Gas Co. reconsideration of part of its April general rate case decision that authorized a $4.1 million (1.58%) rate increase, compared to the $9.3 million (3.7%) hike sought by the utility. The MDU Resources Group utility challenged the regulators’ calculations and methodology on several issues, including affiliate costs for the services provided by the parent company.