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Asset Impairments
 12 Months Ended
Dec. 31, 2017
Asset Impairment Charges [Abstract]  
Asset Impairments

6.

Asset Impairments

 

The following table presents a summary of Devon’s asset impairments. Unproved impairments shown below are included in exploration expenses in the consolidated comprehensive statements of earnings.

 

 

 

Year Ended December 31,

 

 

 

2017

 

 

2016

 

 

2015

 

Proved oil and gas assets

 

$

—

 

 

$

435

 

 

$

16,076

 

EnLink goodwill

 

 

—

 

 

 

873

 

 

 

1,328

 

EnLink other intangible assets

 

 

—

 

 

 

—

 

 

 

223

 

Other assets

 

 

17

 

 

 

2

 

 

 

20

 

Total asset impairments

 

$

17

 

 

$

1,310

 

 

$

17,647

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unproved impairments

 

$

217

 

 

$

77

 

 

$

260

 

 

Proved Oil and Gas Impairments

In 2015 and 2016, Devon impaired a significant portion of its U.S. oil and gas portfolio due to lower forecasted oil, gas and NGL prices.

EnLink Goodwill and Other Intangible Assets Impairments

In 2016 and 2015, Devon recognized goodwill and other intangible asset impairments related to EnLink’s business. Additional information regarding the impairments is discussed in Note 14.

Unproved Impairments

In 2017, 2016 and 2015, Devon allowed certain non-core acreage to expire without plans for development resulting in unproved impairments