Business Combinations and Divestitures Acquisitions In the first six months of 2019, we made no acquisitions of businesses. In the first quarter of 2018, we acquired the remaining 50% equity interest in our Qatari joint venture that we previously accounted for as an equity method investment and consolidated the entity. The joint venture was established in 2008 to provide energy related services required for the drilling and completion of oil and gas wells at onshore and offshore locations within the State of Qatar. The total consideration to purchase the remaining equity interest was $87 million , which is comprised of a cash consideration of $72 million and an estimated contingent consideration of $15 million related to services the Qatari entity will render under new contracts. Of the $72 million in cash consideration, $48 million was paid in accordance with closing terms through the joint venture, with the remaining payment of $24 million to be paid two years from closing, in 2020. As a result of this step acquisition transaction with a change in control, we remeasured our previously held equity investment to fair value and recognized a $12 million gain. The Level 3 fair value of the acquisition was determined using an income approach. Divestitures On April 30, 2019, we completed the sale of our Reservoir Solutions business, also known as our laboratory services business to Oil &amp; Gas Labs, LLC, an affiliate of CSL Capital Management, L.P., for an aggregate purchase price of $206 million in cash, subject to escrow release and customary post-closing working capital adjustments. The business disposition included our laboratory and geological analysis business, including the transfer of substantially all personnel and associated contracts related to the business. We recognized a gain of $117 million and divested a carrying amount of $61 million in net assets previously included in held for sale. On April 30, 2019, we completed the sale of our surface data logging business to Excellence Logging for $50 million in total consideration, subject to customary post-closing working capital adjustments. The business disposition included our surface data logging equipment, technology and associated contracts related to the business. We recognized an insignificant loss and divested a carrying amount of $34 million in net assets previously included in held for sale. In the first quarter of 2019, we completed the final closings in a series of closings pursuant to the purchase and sale agreements (Agreements) entered into with ADES International Holding Ltd. (ADES). We entered into the Agreements in July of 2018 to sell our land drilling rig operations in Algeria, Kuwait and Saudi Arabia, as well as two idle land rigs in Iraq, for an aggregate purchase price of $287.5 million . We received gross proceeds of $72 million in the first quarter of 2019. The ADES sale was subject to regulatory approvals, consents and other customary closing conditions, including potential adjustments based on working capital, net cash, loss or destruction of rigs and drilling contract backlog. The $11 million ADES advance of the purchase price held in escrow as of December 31, 2018 was released in the first quarter of 2019 as a credit towards the purchase price. The loss on the sale of land drilling rigs operations recognized in the first quarter of 2019 was $6 million and divested a carrying amount of $66 million in net assets previously included in held for sale. The Agreements divest a majority of our land drilling rig operations. In the first quarter of 2018, we completed the sale of our continuous sucker rod service business in Canada for a purchase price of $25 million and recognized a gain of $2 million . The carrying amounts of the major classes of assets divested total $23 million and included PP&amp;E, allocated goodwill and inventory. Held for Sale During the second quarter of 2019, we reclassified remaining land drilling rigs held for sale assets of $53 million to assets held for use. We continue to pursue options to sell all of our remaining land drilling rigs operations however the time required to close the recent land drilling rigs sales indicate that we may not be able to conclude that a sale is probable to occur in an appropriate timeline. At June 30, 2019, assets qualifying as held for sale were insignificant. At December 31, 2018, assets qualifying as held for sale totaled $265 million and liabilities held for sale totaled $17 million . These amounts primarily consisted of our surface data logging and laboratory services business held for sale (which was completed as of April 30, 2019) and our remaining land drilling rigs operations held for sale (which the unsold portions were reclassified back to held for use in the second quarter of 2019).