Brent crude was down 80 cents, or 1.1pc, at $69.79 a barrel by 1:10 p.m. EDT (1710 GMT) after falling to $68.14 earlier in the sessions. U.S. oil fell by 87 cents, or 1.3pc, to $67.57 after reaching lows of $65.73.
Goldman Sachs said last week it expects Brent to rise to $80 per barrel this summer as the rollout of inoculations boosts economic activity around the world.
U.S. investment bank Goldman Sachs said it expects Brent crude prices to reach $80 per barrel this summer as vaccine rollouts boost global economic activity.
He said in a statement accompanying the report that delivering cleaner emissions constituted "a massive investment opportunity" that would provide job opportunities.
Exxon holds its annual shareholder meeting on Wednesday and investors have the option of changing their votes until then.
The International Energy Agency (IEA) has said investors should stop funding new fossil fuel projects if they want to cut greenhouse gas emissions by 2050.
"We still see no sign of a slowdown in global electric car markets," said Timur Gül, head of the IEA's energy technology policy division, in a presentation on the global outlook for EVs.
First quarter global EV sales soared 140% to 1.1 million vehicles, with strong growth in China, Europe and the United States, the IEA said.