15 chapter 2 ___________________________________________________ how large is the oil and gas sector of russia a research report masaaki kuboniwa shinichiro tabata nataliya ustinova introduction it difficult to overstate importance russian both economy world hydrocarbon markets possessing 6 percent proved reserves 27 natural accounted for 9 global exports 29 in 2003 1 major customers included european union china japan with considerable post 11 attention prospects penetrating us market eg see aron 2002 butler internally words clifford gaddy 2004 p 346 becoming increasingly clear that s has been will foreseeable future continue be key country economic performance being said there range views as size need assess more critically what actually measured official statistics bank 2004a 2004b only recently concluded share
