PROPERTY, PLANT AND EQUIPMENT

12 Months Ended

Dec. 31, 2017

Property Plant And Equipment [Abstract]

PROPERTY, PLANT AND EQUIPMENT

NOTE 7. PROPERTY, PLANT AND EQUIPMENT

Major classes of property, plant and equipment and their respective balances for Questar Gas are as follows:

Year Ended December 31,	2017		2016
(millions)
Distribution	$	2,605.0	$	2,436.7
General and other		345.6		369.5
Plant under construction		91.1		76.8
Total property, plant and equipment	$	3,041.7	$	2,883.0