Segments of Business

At December 31, 2018, our operations are divided into two primary reportable segments. The Gas Distribution Operations segment provides natural gas service and transportation for residential, commercial and industrial customers in Ohio, Pennsylvania, Virginia, Kentucky, Maryland, Indiana and Massachusetts. The Electric Operations segment provides electric service in 20 counties in the northern part of Indiana.

The following table provides information about our reportable segments. We use operating income as our primary measurement for each of the reported segments and make decisions on finance, dividends and taxes at the corporate level on a consolidated basis. Segment revenues include intersegment sales to affiliated subsidiaries, which are eliminated in consolidation. Affiliated sales are recognized on the basis of prevailing market, regulated prices or at levels provided for under contractual agreements. Operating income is derived from revenues and expenses directly associated with each segment.



Year Ended December 31, (in millions)	2018			2017			2016
Operating Revenues
Gas Distribution Operations
Unaffiliated	$	3,406.4		$	3,087.9		$	2,818.2
Intersegment	13.1			14.2			12.4
Total	3,419.5			3,102.1			2,830.6
Electric Operations
Unaffiliated	1,707.4			1,785.7			1,660.8
Intersegment	0.8			0.8			0.8
Total	1,708.2			1,786.5			1,661.6
Corporate and Other
Unaffiliated	0.7			1.0			13.5
Intersegment	517.6			510.8			413.3
Total	518.3			511.8			426.8
Eliminations	(531.5		)	(525.8		)	(426.5		)
Consolidated Operating Revenues	$	5,114.5		$	4,874.6		$	4,492.5



Year Ended December 31, (in millions)	2018			2017		2016
Operating Income (Loss)
Gas Distribution Operations	$	(254.1	)	$	550.1	$	569.7
Electric Operations	386.1			367.4		301.3
Corporate and Other	(7.3		)	3.7		(4.9		)
Consolidated Operating Income	$	124.7		$	921.2	$	866.1
Depreciation and Amortization
Gas Distribution Operations	$	301.0		$	269.3	$	252.9
Electric Operations	262.9			277.8		274.5
Corporate and Other	35.7			23.2		19.7
Consolidated Depreciation and Amortization	$	599.6		$	570.3	$	547.1
Assets
Gas Distribution Operations	$	13,527.0		$	12,048.8	$	11,096.4
Electric Operations	5,735.2			5,478.6		5,233.3
Corporate and Other	2,541.8			2,434.3		2,362.2
Consolidated Assets	$	21,804.0		$	19,961.7	$	18,691.9
Capital Expenditures⁽¹⁾
Gas Distribution Operations	$	1,315.3		$	1,125.6	$	1,054.4
Electric Operations	499.3			592.4		420.6
Corporate and Other	—			35.8		15.4
Consolidated Capital Expenditures	$	1,814.6		$	1,753.8	$	1,490.4

⁽¹Amounts differ from those presented on the Statements of Consolidated Cash Flows primarily due to the inclusion of capital expenditures included in current liabilities and AFUDC Equity.