Investment in West Texas LPG Pipeline L.P. (Tables)

3 Months Ended

Mar. 31, 2018

Equity Method Investments and Joint Ventures [Abstract]

Select Financial Information for Significant Unconsolidated Equity Method Investees

Selected financial information for WTLPG is as follows:

	As of March 31,						Three Months Ended March 31,
	Total Assets		Long-Term Debt		Members' Equity		Revenues		Net Income
2018
WTLPG	$	870,691	$	—	$	839,028	$	23,041	$	7,706
	As of December 31,
2017
WTLPG	$	837,163	$	—	$	787,426	$	19,719	$	4,525