"Prior to the Great East Japan Earthquake of March 11, 2011, Japan paid $10 per 1 million Btu (British thermal unit) of LNG. It now pays $18 per Btu."
Source: FAR EAST FOCUS: Siberia an opportunity too good for Japan to pass up
June 19, 2012
The Asahi Shimbun
Takashi Kida in Kozmino, Masami Ono in Vladivostok and Tetsuo Kogure