Feb 22 (LNGJ) - Novatek, the Russian developer of the Yamal LNG project, said independent petroleum engineers, DeGolyer and MacNaughton, completed their comprehensive reserve appraisal of the company's hydrocarbon reserves. Total proved reserves of natural gas increased by 493 billion cubic metres to 1,758 Bcm, inclusive of 2012 production. At year-end, the company's reserve to production ratio rose from 25 years in 2011 to 31 years.








