U.S. oil benchmark ends at more than 3-week low

U.S. oil benchmark futures dropped Friday on news that the Organization of the Petroleum Exporting Countries and Russia are discussing a possible increase in production to help offset supply declines in Venezuela and Iran. July West Texas Intermediate crude fell $2.83, or 4%, to settle at $67.88 a barrel on the New York Mercantile Exchange. For the week, prices lost about 4.9%.