| Information on Our Business Segments |
| | | Three Months Ended | | | Nine Months Ended | | | | | September 30 | | | September 30 | | Millions of dollars | | 2011 | | | 2010 | | | 2011 | | | 2010 | | Revenue: | | | | | | | | | | | | | Completion and Production | | $ | 4,025 | | | $ | 2,655 | | | $ | 10,815 | | | $ | 7,012 | | Drilling and Evaluation | | | 2,523 | | | | 2,010 | | | | 6,950 | | | | 5,801 | | Total revenue | | $ | 6,548 | | | $ | 4,665 | | | $ | 17,765 | | | $ | 12,813 | | | | | | | | | | | | | | | | | | | | Operating income: | | | | | | | | | | | | | | | | | Completion and Production | | $ | 1,068 | | | $ | 609 | | | $ | 2,646 | | | $ | 1,344 | | Drilling and Evaluation | | | 369 | | | | 271 | | | | 923 | | | | 859 | | Total operations | | | 1,437 | | | | 880 | | | | 3,569 | | | | 2,203 | | Corporate and other | | | (105 | ) | | | (62 | ) | | | (262 | ) | | | (174 | ) | Total operating income | | $ | 1,332 | | | $ | 818 | | | $ | 3,307 | | | $ | 2,029 | | Interest expense, net of interest income | | | (62 | ) | | | (76 | ) | | | (194 | ) | | | (228 | ) | Other, net | | | (9 | ) | | | (7 | ) | | | (18 | ) | | | (56 | ) | Income from continuing operations before | | | | | | | | | | | | | | | | | income taxes | | $ | 1,261 | | | $ | 735 | | | $ | 3,095 | | | $ | 1,745 | |
|