PetroChina to join Exxon at giant Iraqi oilfield by Asharq Al-Awsat | Aug 10, 2013 | BusinessBeijing/Moscow, Reuters—China’s biggest energy firm, PetroChina, will join Exxon Mobil in developing Iraq’s giant West Qurna oilfield and is in talks with Russia’s Lukoil to buy into a second project at the field, industry sources said. China is...