May 6 (Reuters) - The Russian rouble was stable against the U.S. dollar on Monday.

Against the euro, the rouble rose 0.12% to 98.64 and gained 0.26% to 12.66 against the yuan .

Brent crude oil, a global benchmark for Russia's main export, rose 0.7% to $83.51 a barrel.

Russian stock indexes fell. The dollar-denominated RTS index fell 0.2% to 1,182.35. The rouble-based MOEX Russian index lost 0.11% to 3,438.00.

(Reporting by Reuters; Editing by Alexander Smith)