3. Business Transactions Elite Acquisition On August 1, 2019, we completed the Elite Acquisition whereby we acquired from Elite Compression substantially all of its assets, including a fleet of predominantly large compressor units comprising approximately 430,000 horsepower, vehicles, real property and inventory, and certain liabilities for aggregate consideration consisting of $209.2 million in cash and 21,656,683 shares of common stock with an acquisition date fair value of $225.9 million . The cash portion of the acquisition was funded with borrowings on the Credit Facility. The purchase price paid is subject to customary post-closing adjustments in accordance with the terms of the acquisition's asset purchase agreement. The Elite Acquisition was accounted for using the acquisition method which requires, among other things, assets acquired and liabilities assumed to be recorded at their fair value on the acquisition date. The excess of the consideration transferred over those fair values is recorded as goodwill. The preliminary allocation of the purchase price, which is subject to certain adjustments, was based upon preliminary valuations and our estimates and assumptions are subject to change upon the completion of managements review of the final valuations. We are in the process of finalizing valuations related to property, plant and equipment, identifiable intangible assets and goodwill. Post-closing adjustments to the purchase price could impact future depreciation and amortization expense as well as income tax expense. The final valuation of net assets acquired is expected to be completed as soon as possible, but no later than one year from the acquisition date. The following table summarizes the preliminary purchase price allocation based on the estimated fair values of the acquired assets and liabilities as of the acquisition date (in millions): Accounts receivable $ 9.0 Inventory 7.7 Other current assets 0.8 Property, plant and equipment 286.3 Operating lease ROU assets 0.7 Intangible assets 29.1 Goodwill 106.9 Accounts payable, trade (2.1 ) Accrued liabilities (3.0 ) Operating lease liabilities (0.3 ) Purchase price $ 435.1 The preliminary amount of property, plant and equipment is primarily comprised of compression equipment that will be depreciated on a straight-line basis over an estimated average remaining useful life of 15 years . The intangible assets consist of customer relationships that have an estimated useful life of 15 years . The preliminary amount of intangible assets and their associated useful life were determined based on the period over which the assets are expected to contribute directly or indirectly to our future cash flows. The preliminary amount of goodwill resulting from the acquisition is attributable to the expansion of our services in various regions in which we currently operate and was allocated to our contract operations segment. The goodwill recorded is considered to have an indefinite life and will be reviewed annually for impairment or more frequently if indicators of potential impairment exist. All of the goodwill recorded for this acquisition is expected to be deductible for U.S. federal income tax purposes. The results of operations attributable to the assets and liabilities acquired in the Elite Acquisition have been included in our condensed consolidated financial statements as part of our contract operations segment since the date of acquisition. Revenue attributable to the assets acquired from the date of acquisition, August 1, 2019, through September 30, 2019 was $13.1 million . We are unable to provide earnings attributable to the assets and liabilities acquired since the date of acquisition as we do not prepare full stand-alone earnings reports for those assets and liabilities. Unaudited Pro Forma Financial Information The unaudited pro forma financial information for the three and nine months ended September 30, 2019 and 2018 was derived by adjusting our historical financial statements in order to give effect to the assets and liabilities acquired in the Elite Acquisition. The Elite Acquisition is presented in this unaudited pro forma financial information as though the acquisition occurred as of January 1, 2018, and reflects the following:  the acquisition of substantially all of Elite Compressions assets, including a compression fleet of approximately 430,000 horsepower, vehicles, real property and inventory, and certain liabilities;  borrowings of $209.2 million under the Credit Facility for cash consideration exchanged in the acquisition; and  the exclusion of $4.8 million and $7.4 million of financial advisory, legal and other professional fees incurred related to the acquisition and recorded to transaction-related costs in our condensed consolidated statements of operations during the three and nine months ended September 30, 2019 , respectively. The unaudited pro forma financial information below is presented for informational purposes only and is not necessarily indicative of our results of operations that would have occurred had the transaction been consummated at the beginning of the period presented, nor is it necessarily indicative of future results. Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Revenue $ 251,505 $ 251,060 $ 763,776 $ 728,188 Net income attributable to Archrock stockholders 27,207 11,957 65,152 11,907 Harvest Sale On August 1, 2019, we completed an asset sale in which Harvest acquired from us approximately 80,000 active and idle compression horsepower, vehicles and parts inventory for cash consideration of $30.0 million . We recorded a $6.6 million gain on the sale of these assets to other income, net in our condensed consolidated statements of operations during the three and nine months ended September 30, 2019 . The assets were previously reported under our contract operations segment.