Quarterly report pursuant to Section 13 or 15(d)

Reportable Segments

v2.4.0.8
Reportable Segments
3 Months Ended
Mar. 31, 2014
Segment Reporting [Abstract]  
Reportable Segments
Reportable Segments
We report our business activities in five business segments: (1) Rental Tools, (2) U.S. Barge Drilling, (3) U.S. Drilling, (4) International Drilling, and (5) Technical Services. We eliminate inter-segment revenues and expenses.

The following table represents the results of operations by reportable segment:
 
 
Three Months Ended 
 March 31,
Operations by Reportable Industry Segment
2014
 
2013
 
(Dollars in Thousands)
Revenues:
 
Rental Tools (1)
$
80,506

 
$
57,082

U.S. Barge Drilling (1)
30,490

 
29,865

U.S. Drilling (1)
19,417

 
11,635

International Drilling(1)
85,469

 
64,650

Technical Services(1)
13,343

 
3,903

Total revenues
229,225

 
167,135

Operating gross margin:
 
 
 
Rental Tools (2)
13,345

 
21,507

U.S. Barge Drilling (2)
7,824

 
8,758

U.S. Drilling (2)
1,641

 
(4,052
)
International Drilling (2)
5,477

 
(5,645
)
Technical Services (2)
576

 
309

Total operating gross margin
28,863

 
20,877

General and administrative expense
(8,964
)
 
(12,845
)
Gain (loss) on disposition of assets, net
(129
)
 
1,148

Total operating income
19,770

 
9,180

Interest expense
(12,039
)
 
(10,006
)
Interest income
32

 
59

Loss on extinguishment of debt
(29,673
)
 

Other
895

 
(165
)
Loss from continuing operations before income taxes
$
(21,015
)
 
$
(932
)
 
(1)
For the three months ended March 31, 2014, our largest customer, ENL, constituted 17.1% of our total consolidated revenues and approximately 37.6% and 52.4% of our International Drilling and Technical Services segment revenues, respectively. For the three months ended March 31, 2013, our largest customer, ENL, constituted approximately 15.1% of our total consolidated revenues and approximately 38.5% of our International Drilling segment revenues.
(2)
Operating gross margin is calculated as revenues less direct operating expenses, including depreciation and amortization expense.