In 2011, ten big customers procured gas in the open market. 775 million m3 were delivered to those customers, i.e. 33.5% of total gas quantities delivered to final customers. In 2010, seven customers exercised their eligible customer status and 1,059 million m3 of gas were delivered to them, i.e. 46.4% of total gas quantities. Despite the incomplete regulation, this was viable since there was a small number of customers and only two traders in the open market.