Oil prices fell rapidly amid expectations of a possible nuclear deal between the U.S. and Iran. Iran is ready to make a deal with the U.S. in exchange for the removal of economic sanctions, an Iranian official said.At the same time, the Organization of the Petroleum Exporting Countries (OPEC) and its allies continue to increase production, which also puts pressure on quotations.The decline is developing from the range we described at the beginning of the week: $61.80-65.In addition to news directly related to the oil sector, price dynamics will depend on data on the state of the U.S. economy and comments from the Fed, expected later on Thursday.