Saudi Arabia’s Energy Minister Khalid al-Falih said on Monday that OPEC needs to ensure it does not crimp oil supply too tightly and give the market a harmful shock, and said he was optimistic a production deal could be reached by November. Speaking at the World Energy Congress in Istanbul, Falih said OPEC needed to behave in a balanced and responsible manner and that he continued to believe in its important role. OPEC officials are embarking on a flurry of meetings to nail down details of their deal to cut production agreed last month in Algiers. (Reporting by Rania El Gamal and Ron Bousso; Writing by Nick Tattersall)