PEOPLES GAS SYSTEM
GAS OPERATING STATISTICS (Unaudited)
	Operating Revenues*						Therms*
Three Months Ended June 30,					Percent						Percent
	2001		2000		Change		2001		2000		Change
By Customer Segment:
Residential	$ 17,780		$ 13,565		31.1		10,994		9,836		11.8
Commercial	40,224		32,796		22.6		72,321		67,462		7.2
Industrial	2,888		3,594		(19.6)		63,066		72,288		(12.8)
Off System Sales	8,714		11,169		(22.0)		19,022		29,309		(35.1)
Power generation	2,829		2,982		(5.1)		108,365		109,255		(0.8)
Other revenues	9,839		7,339		34.1		-		-		--
	$ 82,274		$ 71,445		15.2		273,768		288,150		(5.0)
By Sales Type:
System supply	$ 58,050		$ 52,576		10.4		61,934		79,371		(22.0)
Transportation	14,385		11,530		24.8		211,834		208,779		1.5
Other revenues	9,839		7,339		34.1		--		--		--
	$ 82,274		$ 71,445		15.2		273,768		288,150		(5.0)
Average customers	266,171		255,602		4.1		--		--		--
	Operating Revenues*						Therms*
Six Months Ended June 30,					Percent						Percent
	2001		2000		Change		2001		2000		Change
By Customer Segment:
Residential	$ 59,580		$ 38,985		52.8		38,477		33,723		14.1
Commercial	107,703		71,142		51.4		163,131		151,799		7.5
Industrial	6,827		7,111		(4.0)		125,085		152,348		(17.9)
Off System Sales	13,103		20,360		(35.6)		25,641		59,544		(56.9)
Power generation	5,714		5,499		3.9		186,393		211,689		(11.9)
Other revenues	23,484		14,965		56.9		--				--
	$ 216,411		$ 158,062		36.9		538,727		609,103		(11.6)
By Sales Type:
System supply	$ 163,094		$ 118,640		37.5		143,960		183,267		(21.4)
Transportation	29,833		24,457		22.0		394,767		425,836		(7.3)
Other revenues	23,484		14,965		56.9		--		--		--
	$ 216,411		$ 158,062		36.9		538,727		609,103		(11.6)
Average customers	266,227		255,607		4.2		--		--		--
	Operating Revenues*						Therms*
Twelve Months Ended June 30,					Percent						Percent
	2001		2000		Change		2001		2000		Change
By Customer Segment:
Residential	$ 93,827		$ 66,903		40.2		62,385		55,501		12.4
Commercial	182,392		130,206		40.1		303,409		286,499		5.9
Industrial	12,606		13,202		(4.5)		251,107		282,496		(11.1)
Off System Sales	31,505		32,675		(3.6)		61,873		101,679		(39.1)
Power generation	10,939		11,130		(1.7)		393,288		439,957		(10.6)
Other revenues	41,538		27,819		49.3		--				--
	$ 372,807		$ 281,935		32.2		1,072,062		1,166,132		(8.1)
By Sales Type:
System supply	$ 277,228		$ 206,377		34.3		281,295		323,792		(13.1)
Transportation	54,041		47,739		13.2		790,767		842,340		(6.1)
Other revenues	41,538		27,819		49.3		--		--		--
	$ 372,807		$ 281,935		32.2		1,072,062		1,166,132		(8.1)
Average customers	261,533		251,007		4.2		--		--		--
* in thousands