Revenue (Tables)

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Revenues disaggregated by revenue source were as follows:

		Three Months Ended				Nine Months Ended
(In thousands)		September 30,				September 30,
Electric revenues		2018		2017		2018		2017
Residential	$	42,371	$	39,905	$	107,847	$	104,892
Commercial(a)		61,638		64,036		159,264		168,921
Industrial		3,668		4,555		11,193		13,286
Other-retail/municipal		9,431		10,459		26,245		29,141
Total retail		117,108		118,955		304,549		316,240
Sales to the market		1,505		1,068		6,334		3,090
Other revenues		482		445		1,406		1,436
Adjustments to revenues		80		181		344		513
Total electric revenues		119,175		120,649		312,633		321,279
Gas revenues
Residential		11,916		12,121		64,087		61,164
Commercial/Industrial(a)		5,570		5,622		38,728		36,512
Total retail		17,486		17,743		102,815		97,676
Gas transportation		829		944		3,018		3,285
Other revenues		92		91		319		324
Total gas revenues		18,407		18,778		106,152		101,285
Non-regulated energy revenues		213		112		904		261
Total Operating Revenue(a)	$	137,795	$	139,539		419,689	$	422,825

(a)In 2017, MGE had less than $0.1 million of revenues related to CNG vehicle fuel servicing.No revenue was recognized for fuel servicing by MGE Energy in 2017.