INVESTMENTS-AFFILIATED COMPANIES

12 Months Ended

Dec. 31, 2017

Equity Method Investments and Joint Ventures [Abstract]

INVESTMENTS—AFFILIATED COMPANIES

During 2013, we sold our equity interest in a bleach joint venture which resulted in a gain of $6.5 million. During both 2016 and 2015, we received $8.8 million as a result of the sale. As of December 31, 2016, all amounts had been collected under the sale arrangement.

We hold a 9.1% limited partnership interest in Bay Gas Storage Company, Ltd. (Bay Gas), an Alabama limited partnership, in which EnergySouth, Inc. (EnergySouth) is the general partner with interest of 90.9%. Bay Gas owns, leases and operates underground gas storage and related pipeline facilities, which are used to provide storage in the McIntosh, AL area and delivery of natural gas to EnergySouth customers.

The following table summarizes our investment in our non-consolidated equity affiliate:



	December 31,
	2017		2016
	($ in millions)
Bay Gas	$	28.5	$	26.7

The following table summarizes our equity earnings of our non-consolidated affiliate:



	Years Ended December 31,
	2017		2016		2015
	($ in millions)
Bay Gas	$	1.8	$	1.7	$	1.7

We did not receive any distributions from our non-consolidated affiliates in 2017, 2016 and 2015.