* Top seven western majors all seeing liquids output fall * Supermajors’ share of global market dropping every year * BP reports fastest decline of 30% from 2009-13 * Production becoming more evenly split between oil and gas The biggest western oil companies are continuing to see their oil output decline , despite record investment in recent years spurred by sustained crude prices in excess of $100/barrel, according to data released by the companies. Furthermore, with total world oil output continuing to rise every year, the western majors are seeing their share of the global market fall even faster, with new volumes coming largely from their rivals in places like Russia and a host of smaller companies at the heart of the shale oil boom in the US. Analysis continues below… Request a free trial of: Oilgram News Oilgram […]