Gazprom's (GAZP.RS) exports to Europe and Turkey rose 10% in the first half of this year and are set to reach 160 billion cubic meters in the whole of 2013, the Russian company's chief executive said Friday, Interfax reported.

Alexei Miller said that 2012 was an uneasy year for the European gas market although Gazprom's share in supplies to the region began to rise. In 2012, exports of the world's largest natural-gas producer to Europe and Turkey reached 151 bcm.

Gazprom is under pressure from shrinking sales in its most lucrative European market amid an economic slowdown and increasing competition. This year customers in Europe have demanded price cuts after it was flooded by gas intended for the U.S. market but not needed because of the rapid rise in shale gas output there.