MOSCOW- Russian state gas giant Gazprom exported 87.8 billion cubic metres of natural gas to countries outside the former Soviet Union from Jan. 1 to June 15, 6.3% less than in the same period last year, the company said on Monday.

Natural gas output for the same period rose 2.2% year-on-year to 240.6 bcm, Gazprom said.

(Reporting by Gabrielle Tétrault-Farber; writing by Tom Balmforth; editing by Jane Merriman) ((Tom.Balmforth@thomsonreuters.com;))