In a social media post on Tuesday, Trump said Venezuela would hand over 30 to 50 million barrels of oil to the U.S., which in turn would sell them at their market price. The resulting funds -- as much as $2.8 billion at current prices -- will “benefit the people of Venezuela and the United States,” Trump said.

Oil prices rose for a second day on Friday, set for their third weekly gain, on uncertainty about the future of supply from Venezuela and as Iranian unrest increases concerns about output there.

Shell warned that a weak oil-trading performance would weigh on its earnings, compounding what is shaping up to be a challenging period as prices continue to slide.

Venezuela’s oil industry has been in the spotlight since President Donald Trump captured the country’s President Nicolas Maduro.

Oil prices rose on Thursday after two days of declines, as a larger-than-expected draw in U.S. crude inventories provided some impetus for investors to buy futures while they monitor developments in Venezuela.

Energy experts say President Donald Trump’s push to revive Venezuela’s oil market boosts the United States' leverage with China, while putting Canada at a disadvantage.

A mass departure by sanctioned tankers, some switching to Russian flags, has triggered a fresh effort by the United States to pursue Venezuelan oil shipments at sea.

When the markets reopened on Monday, however, just three oil company stocks seemed to benefit. Here's why these three oil stocks surged after Venezuelan President Maduro's capture and whether they're likely to reap long-term gains. Image source: Getty Images.