SHELF DRILLING LTD revenue for the last year amounted to 9.25 B NOK, the most of which — 9.03 B NOK — came from its highest performing source at the moment, Contract Services, the year earlier bringing 6.37 B NOK. The greatest contribution to the revenue figure was made by Saudi Arabia — last year it brought SHELF DRILLING LTD 2.86 B NOK, and the year before that — 1.95 B NOK.