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REVENUES (Tables)
9 Months Ended
Sep. 30, 2019
REVENUES  
Schedule of disaggregation of revenues

Three months ended

Nine months ended

September 30, 

September 30, 

(in thousands)

    

2019

    

2018

    

2019

    

2018

Oilfield services transferred at a point in time

$

$

$

$

Oilfield services transferred over time

 

293,240

 

439,994

 

986,412

 

1,344,254

Total revenues

$

293,240

$

439,994

$

986,412

$

1,344,254

Schedule of contract assets included in accounts receivable

    

September 30, 

    

December 31, 

    

September 30, 

    

December 31, 

(in thousands)

2019

2018

2018

2017

Unbilled trade receivables

$

55,837

$

56,408

$

102,760

$

68,494