ACQUISITIONS

3 Months Ended

Mar. 31, 2015

Business Combinations [Abstract]

ACQUISITIONS

Acquisitions

Purchase of Alliant Energy Corporation's Natural Gas Distribution Business in Southeast Minnesota

On April 30, 2015, MERC acquired Alliant Energy Corporation's natural gas distribution business in southeast Minnesota for $13.6 million. The purchase price included a cash payment of $11.0 million and the issuance of a promissory note to Alliant Energy Corporation for $2.6 million. The purchase price was based on the estimated book value as of the closing date and is subject to post-closing adjustments. This transaction was not material to us.