OSLO, Feb 7 (Reuters) - Norway's IE&FLT labour union said on Wednesday it plans strike action by 75 workers at the Ekofisk oilfield in the North Sea from Feb. 29.

Some 52 of the workers are employed by oil service group Archer while 23 are employed by Ekofisk operator ConocoPhillips, the union said in a statement. (Reporting by Terje Solsvik, editing by Gwladys Fouche)