Reportable Segments (Tables)
|9 Months Ended|
Sep. 30, 2015
|Segment Reporting [Abstract]|
|Results of Operations by Reportable Segment||
The following table represents the results of operations by reportable segment:
(1)For the nine months ended September 30, 2015, our largest customer, Exxon Neftegas Limited (ENL), constituted approximately 27.0 percent of our total consolidated revenues and approximately 44.7 percent of our International & Alaska Drilling segment revenues. For the nine months ended September 30, 2014, our largest customer, ENL, constituted approximately 18.9 percent of our total consolidated revenues and approximately 39.9 percent of our International & Alaska Drilling segment revenues.
(2)Operating gross margin is calculated as revenues less direct operating expenses, including depreciation and amortization expense.
Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.
Reference 1: http://www.xbrl.org/2003/role/presentationRef