MOSCOW, July 17 (Reuters) - The Russian rouble strengthened slightly against the dollar on Wednesday, but currency trading remains subdued.

Sanctions on Moscow Exchange and its clearing agent, the National Clearing Centre (NCC), led to a range of varying prices and spreads as trading shifted to the over-the-counter (OTC) market on June 14, obscuring access to reliable pricing for the Russian currency.

In a report published on Tuesday, the central bank noted that delays in international payments for goods imported to Russia, due to Western sanctions, were a factor behind the rouble's strengthening in June.

Against the yuan, which had already become the most traded foreign currency in Moscow before the latest sanctions were imposed, the rouble was flat at 12.05, according to an analysis of the OTC market.

The central bank said on Tuesday that demand for its yuan swaps fell to zero after it raised interest rates on this instrument by 2 percentage points. The regulator stated that this move should limit its influence on the yuan exchange rate.

The rouble was also flat against the euro at 96.34 .

Brent crude oil, a global benchmark for Russia's main export, was down 0.2% at $83.58 a barrel hovering near a one-month low hit in the prior session on signs of weakening demand in China. (Reporting by Gleb Bryanski; Editing by Sharon Singleton)