Russian energy major Rosneft announced Wednesday that an international consortium has started production at the Zohr gas field offshore Egypt, in which it has a stake. Gas output at the field, the largest in the Mediterranean Sea, will total up to 28 billion cubic meters a year by 2020, the company added. Rosneft owns up to 35 percent in Zohr, Eni controls 60 percent and BP has 10 percent. Source: Reuters