The Russian rouble opened up on Tuesday, helped by stable oil prices and low demand for forex by exporters ahead of tax payments.

At 0740 GMT, the rouble was 0.24% stronger against the dollar at 92.16 and had lost 0.05% to trade at 100 versus the euro. It had firmed 0.16% against the yuan to 12.74.

The Russian currency on Monday hit a one-week high, as markets opened for the first time since the latest round of Western sanctions were imposed on Moscow.

In a note, Bogdan Zvarich, chief analyst at the online marketplace, said that stable oil prices and seasonal demand for roubles by exporters to make tax payments was keeping the rouble strong. "As a result, the American currency may retreat below 92 roubles during trading," he said.

The rouble should be at least temporarily buttressed by month-end tax payments that usually see exporters convert foreign exchange revenues to meet local liabilities.

Brent crude oil, a global benchmark for Russia's main export, was up 0.41% at $82.87 a barrel. Russia on Tuesday banned gasoline exports for six months from March 1, due to shortages and high domestic prices.

Russian stock indexes were up on Tuesday.

The dollar-denominated RTS index was up 0.23% to 1,100 points. The rouble-based MOEX Russian index was 0.20% higher at 3,219 points.

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(Editing by Andrew Heavens)