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North Sea Crude-Oseberg weakens amid ample supply

LONDON, March 12 (Reuters) - North Sea Oseberg crude differentials weakened on Thursday after two cargoes traded following lower offers, reflecting ample supply in the market. PLATTS WINDOW * Oseberg: Mercuria sold to Litasco a cargo at dated Brent plus 90 cents loading April 1-3, down 40 cents from a similar offer on Wednesday. * Oseberg: Equinor sold to Total at dated Brent plus 85 cents, down 40 cents from an offer on Wednesday. (Reporting by Alex Lawler Editing by)