NEW YORK, Sept 9 (Reuters) - Royal Dutch Shell said on Thursday it declared force majeure on several contracts due to damage to its offshore facilities in the Gulf of Mexico after Hurricane Ida.

Force majeure is a legal provision used by companies during unforeseen events such as hurricanes and fires when they cannot meet contractual obligations like delivering oil.

(Reporting by Devika Krishna Kumar in New York; Editing by Chizu Nomiyama)