The consortium of foreign companies headed by BP has ended well-drilling from the C25z borehole in the Western Azeri platform in the Azeribaijani sector of the Caspian Sea in the first quarter of 2011, 1news.az reports.
Until April 1st 2011 the Western Azeri platform had 19 operating wells. 9.6 million tons of oil were produced in the first four months of 2011.