Major offshore Persian Gulf Oil fields include Khafji and Hout, both of which are connected to Saudi Arabias Safaniyah, the worlds largest offshore oilfield (with estimated reserves of 35 billion barrels). Offshore production includes Arab Medium crude from the Zuluf (over 500,000 bbl/d capacity) and Marjan (270,000 bbl/d capacity) fields and Arab Heavy Crude from the Safaniya field. 
The Doroud 1&2, Salman, Abuzar, Foroozan, and Sirri fields comprised the bulk of Irans offshore output, all of which is exported.  Iran plans extensive development of existing offshore fields and hopes to raise its offshore production capacity sharply to 1.1 million bbl/d from about 675,000 bbl/d currently. In early October 2003, Iran re-launched a tender for eight exploration blocks in the Persian Gulf after receiving little interest from a January 2003 announcement. One area considered to have potential is located near the Strait of Hormuz. Another interesting area is offshore near Bushehr, where Iran claimed in July 2003 to have discovered three fields with as much as 38 billion barrels of oil reserves.