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Business Acquisitions | 12 Months Ended
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Dec. 31, 2015
Business Combinations [Abstract] |
Business Acquisitions | 3. Business Acquisitions August 2014 MidCon Acquisition On August 8, 2014, the Partnership completed an acquisition of natural gas compression assets, including a fleet of 162 compressor units, comprising approximately 110,000 horsepower from MidCon Compression, L.L.C. (“MidCon”) for $130.1 million. The purchase price was funded with borrowings under the Partnership’s revolving credit facility. The majority of the horsepower acquired is utilized under a five-year contract operations services agreement with BHP Billiton Petroleum (“BHP Billiton”), which expires in March 2019, to provide compression services. In connection with the acquisition, the contract operations services agreement with BHP Billiton was assigned to the Partnership effective as of the closing. During the year ended December 31, 2014, the Partnership incurred transaction costs of approximately $1.0 million related to this acquisition, which is reflected in other (income) expense, net, in our consolidated statements of operations. In accordance with the terms of the purchase and sale agreement between the Partnership and MidCon relating to this acquisition, the Partnership directed MidCon to sell a tract of real property and the facility located thereon, a fleet of vehicles, personal property and parts inventory to our wholly-owned subsidiary Archrock Services, L.P. (“ASLP”), an indirect parent company of the Partnership, for $4.1 million. The assets acquired by ASLP are used in conjunction with the compression units the Partnership acquired from MidCon to provide compression services. The acquisition of the assets by the Partnership and ASLP from MidCon is referred to as the “August 2014 MidCon Acquisition.” We accounted for the August 2014 MidCon Acquisition 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 following table summarizes the purchase price allocation based on estimated fair values of the acquired assets and liabilities as of the acquisition date (in thousands):
| Fair Value
Inventory | $ | 2,302 |
Property, plant and equipment | 80,154 |
Goodwill | 3,738 |
Intangible assets | 48,373 |
Current liabilities | (372 | )
Purchase price | $ | 134,195 |
Property, Plant and Equipment, Goodwill and Intangible Assets Acquired 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 24 years. Goodwill of $3.7 million resulting from the acquisition is attributable to the expansion of our services in the region and was assigned to our contract operations segment. The goodwill recorded is considered to have an indefinite life and is reviewed annually for impairment or more frequently if indicators of impairment exist. At December 31, 2015, we recorded a full impairment of our goodwill. See Note 6 (“Goodwill”) for further discussion of goodwill impairment. The amount of finite life intangible assets, and their associated average useful lives, was determined based on the period which the assets are expected to contribute directly or indirectly to our future cash flows, and consisted of the following:
| Amount (In thousands) |  | Average Useful Life
Customer related | $ | 21,590 |  |  | 25 years
Contract based | 26,783 |  |  | 5 years
Total acquired identifiable intangible assets | $ | 48,373 |  |  |
The results of operations attributable to the assets and liabilities acquired in the August 2014 MidCon Acquisition have been included in our consolidated financial statements as part of our contract operations segment since the date of acquisition. April 2014 MidCon Acquisition On April 10, 2014, the Partnership completed an acquisition of natural gas compression assets, including a fleet of 337 compressor units, comprising approximately 444,000 horsepower from MidCon for $352.9 million. The purchase price was funded with the net proceeds from the Partnership’s public sale of 6.2 million common units and a portion of the net proceeds from the Partnership’s issuance of $350.0 million aggregate principal amount of 6% senior notes due October 2022 (the “Partnership 2014 Notes”). The compressor units were previously used by MidCon to provide compression services to a subsidiary of Access Midstream Partners LP (“Access”). Effective as of the closing of the acquisition, the Partnership and Access entered into a seven-year contract operations services agreement under which the Partnership provides compression services to Williams Partners, L.P. (formerly Access). During the year ended December 31, 2014, the Partnership incurred transaction costs of approximately $1.5 million related to this acquisition, which is reflected in other (income) expense, net, in our consolidated statements of operations. In accordance with the terms of the purchase and sale agreement between the Partnership and MidCon relating to this acquisition, the Partnership directed MidCon to sell a tract of real property and the facility located thereon, a fleet of vehicles, personal property and parts inventory to our wholly-owned subsidiary ASLP, an indirect parent company of the Partnership, for $7.7 million. The assets acquired by ASLP are used in conjunction with the compression units the Partnership acquired from MidCon to provide compression services. The acquisition of the assets by the Partnership and ASLP from MidCon is referred to as the “April 2014 MidCon Acquisition.” We accounted for the April 2014 MidCon Acquisition 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 following table summarizes the purchase price allocation based on estimated fair values of the acquired assets and liabilities as of the acquisition date (in thousands):
| Fair Value
Inventory | $ | 4,357 |
Property, plant and equipment | 314,556 |
Intangible assets | 42,474 |
Current liabilities | (827 | )
Purchase price | $ | 360,560 |
Property, Plant and Equipment and Intangible Assets Acquired 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 25 years. The amount of finite life intangible assets, and their associated average useful lives, was determined based on the period which the assets are expected to contribute directly or indirectly to our future cash flows, and consisted of the following:
| Amount (In thousands) |  | Average Useful Life
Customer related | $ | 4,701 |  |  | 25 years
Contract based | 37,773 |  |  | 7 years
Total acquired identifiable intangible assets | $ | 42,474 |  |  |
The results of operations attributable to the assets and liabilities acquired in the April 2014 MidCon Acquisition have been included in our consolidated financial statements as part of our contract operations segment since the date of acquisition. Unaudited Pro Forma Financial Information The unaudited Pro forma financial information for the years ended December 31, 2014 and 2013 has been included to give effect to the additional assets acquired in the August 2014 MidCon Acquisition and the April 2014 MidCon Acquisition. The August 2014 MidCon Acquisition and the April 2014 MidCon Acquisition are presented in the unaudited pro forma financial information as though these transactions occurred as of January 1, 2013. The unaudited pro forma financial information reflects the following transactions: As related to the August 2014 MidCon Acquisition:
• | the Partnership’s acquisition in August 2014 of natural gas compression assets and identifiable intangible assets from MidCon;
• | our wholly-owned subsidiary ASLP’s, an indirect parent company of the Partnership, acquisition from MidCon, as directed by the Partnership, of a tract of real property and the facility located thereon, a fleet of vehicles, personal property and parts inventory;
• | the Partnership’s borrowings under its revolving credit facility to pay $130.1 million to MidCon for the August 2014 MidCon Acquisition; and
• | our borrowings under our revolving credit facility to pay $4.1 million to MidCon for assets acquired by ASLP in the August 2014 MidCon Acquisition.
As related to the April 2014 MidCon Acquisition:
• | the Partnership’s acquisition in April 2014 of natural gas compression assets and identifiable intangible assets from MidCon;
• | our wholly-owned subsidiary ASLP’s, an indirect parent company of the Partnership, acquisition from MidCon, as directed by the Partnership, of a tract of real property and the facility located thereon, a fleet of vehicles, personal property and parts inventory;
• | the Partnership’s issuance of 6.2 million common units to the public and approximately 126,000 general partner units to us;
• | the Partnership’s issuance of $350.0 million aggregate principal amount of the Partnership 2014 Notes;
• | the Partnership’s use of proceeds from the issuance of common units, general partner units and the Partnership 2014 Notes to pay $352.9 million to MidCon for the April 2014 MidCon Acquisition and to pay down $157.5 million on its revolving credit facility; and
• | our borrowings under our revolving credit facility to pay $7.7 million to MidCon for assets acquired by one of our wholly-owned subsidiaries in the April 2014 MidCon Acquisition.
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 each transaction been consummated at the beginning of the period presented, nor is it necessarily indicative of future results. The unaudited pro forma financial information below was derived by adjusting our historical financial statements. The following table shows unaudited pro forma financial information for the years ended December 31, 2014 and 2013 (in thousands, except per share amounts):
| Years Ended December 31,
| 2014 |  | 2013
Revenue | $ | 996,961 |  |  | $ | 974,518 |
Net income attributable to Archrock common stockholders | $ | 100,208 |  |  | $ | 127,028 |
Basic net income per common share attributable to Archrock common stockholders | $ | 1.51 |  |  | $ | 1.97 |
Diluted net income per common share attributable to Archrock common stockholders | $ | 1.51 |  |  | $ | 1.97 |

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