Note 5 Acquisitions  2018 Acquisitions  On October 3, 2018, we purchased PetroMar Technologies, a small developer and operator of LWD downhole tools focusing on high-value formation data to facilitate completion optimization particularly in unconventional reservoirs. The tools complement our existing wellbore placement capabilities and will be included in our Drilling Solutions operating segment. Under the terms of the transaction, we paid an initial purchase price of $25.0 million. We may also be required to make future payments that are contingent upon the future financial performance of this operation. As part of our purchase price allocation, we have recorded intangible assets of $36.2 million ($13.7 million of developed technology, $21.7 million of in process research and development and $0.8 million for tradename), goodwill of approximately $11.4 million and other liabilities of $22.6 million (net of other working capital items) primarily related to the estimate of contingent payments on future financial performance as noted above. The pro forma effect on revenue and net income (loss) have been determined to be immaterial to our financial statements. After further tests, the acquisition is not significant and as such we have not included disclosures of the allocation of the purchase price or any pro forma information.  2017 Acquisitions  Robotic Drilling Systems  On September 5, 2017 we paid approximately $50.7 million in cash, subject to customary closing adjustments, to acquire Robotic Drilling Systems AS (RDS), a provider of automated tubular and tool handling equipment for the onshore and offshore drilling markets based in Stavanger, Norway. This transaction will allow us to integrate RDSs highly capable team and product offering with the technology portfolio of our Rig Technologies segment and strengthens the development of our drilling automation solutions. As part of our purchase price allocation, we have recorded intangible assets of $53.3 million ($20.8 million of developed technology and $32.5 million of in process research and development), goodwill of approximately $5.7 million and other liabilities of $7.3 million (net of other working capital items). The intangible assets related to developed technology are being amortized using the straight-line method over the estimated useful life of 10 years. We have consolidated the operating results of RDS since the acquisition date and reported those results in our Rig Technologies segment. The pro forma effect on revenue and net income (loss) have been determined to be immaterial to our financial statements. Further, tests of significance for this acquisition do not result in a significant acquisition and as such we have not included disclosures of the allocation of the purchase price or any pro forma information.  Tesco Corporation  On December 15, 2017, Nabors completed the acquisition of Tesco Corporation (Tesco). Tescos tubular services business benefits our Drilling Solutions segment as we expanded into numerous key regions globally. Additionally, the acquisition combined Tescos rig equipment manufacturing, rental and aftermarket service business into our Rig Technologies segment, creating a leading rig equipment and drilling automation provider. Under the terms of the acquisition, Nabors acquired all common shares of Tesco in an all-stock transaction, with Tesco shareholders receiving 0.68 common shares of Nabors for each Tesco share owned, or approximately 32.1 million Nabors common shares. The fair value of common shares issued was $179.0 million based on the closing price of Nabors common shares as of the last trading day prior to the issuance as stipulated in the acquisition agreement.  The following table provides the final allocation of the purchase price as of the acquisition date.        Fair Value (In thousands)  at Acquisition Assets:     Cash and cash equivalents  $ 59,804  Accounts receivable  40,465  Inventory  44,525  Other current assets  13,889  Property, plant and equipment  68,591  Other long-term assets  3,647  Total assets  230,921  Liabilities:     Accounts payable  $ 14,111  Accrued liabilities  35,383  Other long-term liabilities   2,436  Total liabilities  51,930  Net assets acquired  $ 178,991   We have consolidated the operating results of Tesco since the acquisition date and reported those results in our Drilling Solutions and Rig Technologies segments. We included an additional $7.7 million in operating revenues and $0.1 million in earnings from the acquisition date through December 31, 2017 in our consolidated statements of income (loss) as a result of this acquisition.