Acquisition On January 3, 2017, CES, a wholly-owned subsidiary of CERC, closed the previously announced agreement to acquire AEM. After working capital adjustments, the final purchase price was $147 million and was allocated to identifiable assets acquired and liabilities assumed based on their estimated fair values on the acquisition date. The following table summarizes the final purchase price allocation and the fair value amounts recognized for the assets acquired and liabilities assumed related to the acquisition: (in millions) Total purchase price consideration $ 147 Cash $ 15 Receivables 140 Natural gas inventory 78 Derivative assets 35 Prepaid expenses and other current assets 5 Property and equipment 8 Identifiable intangibles 25 Total assets acquired 306 Accounts payable 113 Derivative liabilities 43 Other current liabilities 7 Other liabilities 1 Total liabilities assumed 164 Identifiable net assets acquired 142 Goodwill 5 Net assets acquired $ 147 The goodwill of $5 million resulting from the acquisition reflects the excess of the purchase price over the fair value of the net identifiable assets acquired. The goodwill recorded as part of the acquisition primarily reflects the value of the complementary operational and geographic footprints, scale and expanded capabilities provided by the acquisition. Identifiable intangible assets were recorded at estimated fair value as determined by management based on available information, which includes a preliminary valuation prepared by an independent third party. The significant assumptions used in arriving at the estimated identifiable intangible asset values included managements estimates of future cash flows, the discount rate which is based on the weighted average cost of capital for comparable publicly traded guideline companies and projected customer attrition rates. The useful lives for the identifiable intangible assets were determined using methods that approximate the pattern of economic benefit provided by the utilization of the assets. The estimate