Italian energy company Eni said it was coordinating with Venezuelan officials on the progress at one of the largest offshore oil fields in the world.
Venezuela hopes to normalize relations with the United States and exchange ambassadors this year, the country's foreign minister said.
Venezuelan President Nicolas Maduro is grappling with embarrassing shortages of consumer goods, in some cases rated to be worse than under Hugo Chavez.
The United States denied allegations by Venezuelan President Nicolas Maduro U.S. operatives are involved in an assassination plot against him.
Venezuela's emboldened opposition coalition filed a Supreme Court challenge to President Nicolas Maduro in a hardening of political conflict in the country.
Venezuelan lawmakers were bloodied and bruised in a brawl set off by an opposition protest of a gag rule against those disputing the presidential vote results.
Venezuelan President Nicolas Maduro put the country's electricity supplies on an emergency footing after the capital and outlying areas plunged into darkness amid repeated blackouts.
American filmmaker Timothy Tracy, who went to Venezuela to shoot a film about the country's political divide, was arrested and accused of instigating unrest.
A man interrupted Venezuelan President Nicolas Maduro's inauguration speech by grabbing the microphone, officials said.
All parties to post-election violence in Venezuela are called on to work to reduce tensions as they chart the country's future, the British government said.