Oil prices edged up in Asia on Tuesday as OPEC member Venezuela indicated a deal to limit output is close and after fresh fighting in Libya.

But gains were limited by continuing worries about a supply glut.

Samsung Electronics said Sunday it had sold shares it held in four technology companies including U.S. chipmaker Rambus and Japan's Sharp to free up money and focus on its main business.

Demonstrators took to the streets across Germany on Saturday in protest over a massive transatlantic trade agreement, dealing a new blow to the disputed accord.

In Berlin, as in Munich, there was a sea of flags as people flocked to join the rallies despite the rain, carrying placards and banners representing everything from anti-globalization groups to political parties and unions, Agence France Presse correspondents said. 

Turkmenistan's President Gurbanguly Berdymukhamedov on Saturday hailed his country's "solid transit potential" as he unveiled an international airport worth over $2 billion in the capital Ashgabat.

Berdymukhamedov said the new airport's two passenger terminals would have the capacity to serve 17 million passengers a year while the freight terminal could handle 200,000 tons of freight annually.

Middle East economies have plunged into decline in the years of war since the Arab Spring, creating daunting economic and development challenges, according to an IMF report released Friday.

World oil prices fell Friday as the prospects of higher output from Libya and Nigeria further fueled oversupply concerns, cutting short a nascent rebound.

Russia's central bank on Friday cut its key interest rate by half a percentage point to 10 percent, the first reduction since June as Moscow seeks to jump-start its battered economy.

The bank said in a statement that the decision, expected by analysts, was due to a "decrease in inflation expectations and unstable economic activity", but noted it intends now to hold off on another cut until early next year at the earliest.

Ukraine has launched a dispute before the World Trade Organization, complaining that Russian restrictions on road and rail transit of Ukrainian goods violate international trade agreements, sources close to the WTO said Thursday.

Ukraine alleged that Moscow had imposed a range of restrictions on the transit of goods from the country, including banning the transit of any goods with tariff rates above zero, and all goods under the embargo imposed by Russia in August 2014.

Taiwan regulators have ordered the removal of executives of a local bank linked to the Panama Papers scandal and barred it from opening overseas branches, saying not enough was done to prevent money laundering.

Oil prices edged up after tanking the previous day but the gains were limited following fresh US stockpiles data and the prospect of a boost in Libyan output.

Both main contracts tumbled almost three percent Wednesday after the US Energy Information Administration said gasoline and distilled products inventories rose last week, dampening news of a surprise fall in crude supplies.