The following table provides the components of the Company's interest and other income for the three and six months ended June 30, 2015 and 2014:



	Three Months Ended June 30,					Six Months Ended June 30,
	2015		2014			2015		2014
	(in millions)
Equity interest in income of EFS Midstream (a)	$	3	$	3		$	5	$	6
Income (loss) from vertical integration services (b)	5		(5		)	4		(7		)
Deferred compensation plan income	—		—			3		2
Other income	3		5			5		6
Total interest and other income	$	11	$	3		$	17	$	7

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(a)	The Company accounts for its investment in EFS Midstream LLC ("EFS Midstream") using the equity method. EFS Midstream provides gathering, treating and transportation services for the Company. See Note O for additional information on the Company's sale of EFS Midstream in July 2015.

(b)

Income (loss) from vertical integration services primarily represents net margins that result from Company-provided fracture stimulation and service operations, which are ancillary to and supportive of the Company's oil and gas joint operating activities, and do not represent intercompany transactions. For the three and six months ended June 30, 2015, these vertical integration net margins included $86 million and $198 million, respectively, of revenues and $81 million and $194 million, respectively, of costs and expenses. For the same period in 2014, these vertical integration net margins included $104 million and $196 million, respectively, of revenues and $109 million and $203 million, respectively, of costs and expenses.