Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment Impairment

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Property, Plant and Equipment Impairment
9 Months Ended
Sep. 30, 2018
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Impairment Note 2 - Property, Plant and Equipment Impairment        
Historically, our barge rig utilization has trended closely with oil prices in periods of both decline and recovery. During the third quarter of 2018, management determined the divergence between oil prices and utilization for our Gulf of Mexico inland barge and International barge asset groups necessitated performance of a recoverability analysis for these two asset groups. Average quarterly oil prices have increased sequentially beginning in the third quarter of 2017, reaching an average quarterly 3-year high in the third quarter of 2018, while our utilization remained flat for the nine months ending September 30, 2018 as compared to the year ended December 31, 2018.
Based upon our recoverability analysis, where the carrying values exceeded both estimated future undiscounted cash flows and a subsequent aggregate fair value determination based upon a cost approach method, we determined the Gulf of Mexico inland barge and International barge asset groups were impaired. The significant unobservable inputs to the cost approach method included replacement costs and remaining economic life. See also Note 5 - Fair Value of Measurements.
We estimated the fair values to be $19.7 million and $3.4 million for the Gulf of Mexico inland barge asset group and the International barge asset group, respectively, as of September 30, 2018. We recognized a pretax impairment loss of approximately $44.0 million in total, or $34.2 million and $9.8 million for the Gulf of Mexico inland barge asset group and the International barge asset group, respectively, for the three months ended September 30, 2018. The Gulf of Mexico inland barge asset group is reported as part of the U.S. (Lower 48) Drilling segment and the International barge asset group is reported as part of the International & Alaska Drilling segment.