* 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.
Combined output of crude and other liquids by the seven biggest western majors -- ExxonMobil, Shell, BP, Chevron, Total, ConocoPhillips and Eni -- amounted to 9.517 million b/d last year, down 2.2% from 2012 and marking the fourth consecutive year of decline.
Liquids output from the same group has been falling every year of late, having been as high as 10.865 million b/d in 2009.
As a group, the seven have seen their combined liquids output fall by 1.348 million b/d, or 12.4% over the period from 2009 to 2013.
The most notable contribution to the overall decline comes from BP, whose production of oil and other liquids has fallen by more than 30% from 1.695 million b/d in 2009 to 1.176 million b/d in 2013.
platts
Table: Production of oil and other liquids by leading western companies