Transocean Ltd. Reports Fourth Quarter and Full Year 2020 Results Total contract drilling revenues were $690 million (total adjusted contract drilling revenues of $747 million), compared with $773 million in the third quarter of 2020 (total adjusted contract drilling revenues of $830 million); Revenue efficiency Operating and maintenance expense was $465 million, compared with $470 million in the prior period; Net loss attributable to controlling interest was $37 million, $0.06 per diluted share, compared with net income attributable to controlling interest of $359 million, $0.51 per diluted share, in the third quarter of 2020; Adjusted net loss was $209 million, $0.34 per diluted share, excluding $172 million of net favorable items. This compares with adjusted net loss of $69 million, $0.11 per diluted share, in the previous quarter;