The 2013 IGU Wholesale Gas Price survey is the sixth to be undertaken in a series which began at the start of the 2006 to 2009 triennium culminating in the World Gas Conference in Buenos Aires.
Prior to the 2013 survey, previous surveys were undertaken for the years 2005, 2007, 2009, 2010 and 2012.
The six surveys are now indicating the changing trends in wholesale price formation mechanisms over a period of rapid and significant change in the global gas market.
In the 2013 survey responses were received for some 65 out of 108 countries, but these responses covered 93% of total world consumption.