Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2019



	Millions of Dollars					Per Common Unit
	Total Revenues and Other Income		Income Before Income Taxes	Net Income Attributable to the Partnership	Limited Partners’ Interest in Net Income Attributable to the Partnership	Net Income Attributable to the Partnership
	Total Revenues and Other Income		Income Before Income Taxes	Net Income Attributable to the Partnership		Basic	Diluted
2019
First	$	423	199	198	119	0.96	0.92
Second	401		234	233	153	1.23	1.15
Third	411		238	237	228	1.18	1.15
Fourth	432		255	255	246	1.08	1.06

2018
First	$	355	174	172	110	0.91	0.87
Second	354		186	186	121	0.99	0.94
Third	384		217	217	144	1.17	1.10
Fourth	393		223	221	144	1.16	1.09