Accounting For Certain Long-Lived Assets

12 Months Ended

Dec. 31, 2015

Accounting For Certain Long-Lived Assets [Abstract]

Accounting For Certain Long-Lived Assets

Accounting for Certain Long-Lived Assets

EOG reviews its proved oil and gas properties for impairment purposes by comparing the expected undiscounted future cash flows at a depreciation, depletion and amortization group level to the unamortized capitalized cost of the asset.  During 2015, 2014 and 2013, such reviews indicated that unamortized capitalized costs of certain properties were higher than their expected undiscounted future cash flows primarily due to lower commodity prices and, to a lesser extent, downward reserve revisions, drilling of marginal or uneconomic wells, or development dry holes in certain producing fields.  Several impairments over this period were recognized in connection with the signing of purchase and sale agreements.  As a result, EOG recorded pretax charges of $6,130 million, $171 million and $73 million in the United States during 2015, 2014 and 2013, respectively, and $196 million, $404 million and $85 million in Other International during 2015, 2014 and 2013, respectively.  Additionally, EOG recorded pretax charges of $14 million in Trinidad during 2013.  The pretax charges are included in Impairments on the Consolidated Statements of Income and Comprehensive Income.  The carrying values for assets determined to be impaired were adjusted to estimated fair value using the Income Approach described in the Fair Value Measurement Topic of the ASC.  In certain instances, EOG utilizes accepted bids as the basis for determining fair value.  Amortization and impairments of unproved oil and gas property costs, including amortization of capitalized interest, were $288 million, $168 million and $115 million during 2015, 2014 and 2013, respectively.