MOSCOW, April 2 (Reuters) - The Russian rouble weakened

slightly against the U.S. dollar on Tuesday.

By 0715 GMT, the rouble was 0.24% lower at

92.36 to the dollar after trading in a range of 92.163 to

92.470.

Against the euro, the rouble fell 0.04% to

99.14 and dropped 0.08% to 12.70 against the yuan

.

Brent crude oil, a global benchmark for Russia's

main export, rose 1.1% to $88.36 a barrel.

Russian stock indexes were mixed. The dollar-denominated RTS

index fell 0.02% to 1,147.59. The rouble-based MOEX

Russian index gained 0.03% to 3,364.46.

($1 = 92.3600 roubles)

(Reporting by Reuters

Editing by David Goodman

)