India, March 18 -- Oil futures failed to hold early gains and settled lower on Tuesday as concerns about supply disruptions eased following Russian President Vladimir Putin agreeing to refrain from attacking Ukrainian energy infrastructure for 30 days.

Worries about global growth due to the impact of U.S. government's trade tariffs weighed on oil prices.

The Organization for Economic Co-operation and Development has warned that the Trump administration's tariffs would hurt growth in the U.S., Canada and Mexico.

Oil prices climbed higher earlier in the day amid concerns about supplies amid tensions in the Middle East, and on optimism about improved demand after China announced a 30-point plan to boost consumer spending.

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