Rapid City, SD-based Black Hills Corp. has received regulatory approval from the Colorado Public Utilities Commission to consolidate its state utilities into newly named Black Hills Colorado Gas Inc.  The Nebraska Public Service Commission also has extended the recovery period of an existing safety and integrity rider to Dec. 31, 2020, for state utility Black Hills Gas Distribution LLC. The rider provides about $6 million of annual revenue on investments made before Jan. 1, 2018.

NW Natural Co. customers in Washington and Oregon will see lower rates after state regulators approved the utility's purchased gas adjustments (PGA). Residential rates in Washington will drop by an average of 7.2% ($3.81/month), and for commercial customers by 7.7% ($16/month). In Oregon, the PGA and separate adjustments result in an average 2.1% ($1.10/month) decline for residential customers; commercial customers would save 2.41% ($4.92/month). The rates, set to take effect on Nov. 1, were set separately by the Washington Utilities and Transportation Commission and the Oregon Public Utility Commission.