However, an Iranian source familiar with the negotiations said there were still gaps to bridge in the talks with the U.S. Oil prices fell by about $2 on Thursday on expectations of a U.S.-Iran nuclear deal that could result in sanctions easing.

Talks between Iranian and U.S. negotiators to resolve disputes over Tehran’s nuclear programme ended in Oman on Sunday with further negotiations expected, officials said, as Tehran publicly insisted on continuing its uranium enrichment.

The Trump administration gave Iran a proposal for a nuclear deal during the fourth round of negotiations on Sunday, a U.S. official and two other sources with direct knowledge of the matter told Axios.