(millions)	Tampa								Tampa Electric
Three months ended March 31, 2019	Electric			PGS		Eliminations			Company
Electric revenue
Residential	$	206		$	0	$	0		$	206
Commercial		120			0		0			120
Industrial		34			0		0			34
Regulatory deferrals and unbilled revenue		(7	)		0		0			(7	)
Other ⁽¹⁾		59			0		(1	)		58
Total electric revenue		412			0		(1	)		411
Gas revenue
Residential		0			50		0			50
Commercial		0			42		0			42
Industrial ⁽²⁾		0			5		0			5
Other ⁽³⁾		0			36		(5	)		31
Total gas revenue		0			133		(5	)		128
Total revenue	$	412		$	133	$	(6	)	$	539
Three months ended March 31, 2018
Electric revenue
Residential	$	230		$	0	$	0		$	230
Commercial		132			0		0			132
Industrial		38			0		0			38
Regulatory deferrals and unbilled revenue		(1	)		0		0			(1	)
Other ⁽¹⁾		62			0		0			62
Total electric revenue		461			0		0			461
Gas revenue
Residential		0			56		0			56
Commercial		0			44		0			44
Industrial ⁽²⁾		0			5		0			5
Other ⁽³⁾		0			37		(6	)		31
Total gas revenue		0			142		(6	)		136
Total revenue	$	461		$	142	$	(6	)	$	597

(1) Other includes sales to public authorities, off-system sales to other utilities and various other items.

(2) Industrial includes sales to power generation customers.

(3) Other includes off-system sales to other utilities and various other items.

Remaining performance obligations primarily represent lighting contracts and gas transportation contracts with fixed contract terms. As of March 31, 2019 and December 31, 2018, the aggregate amount of the transaction price allocated to remaining performance obligations was approximately $135 million. As allowed under ASC 606, this amount excludes contracts with an original expected length of one year or less and variable amounts for which TEC recognizes revenue at the amount to which it has the right to invoice for services performed. TEC expects to recognize revenue for the remaining performance obligations through 2033.