sentences:  In 2010, Statoil and DONG Energy opened the Mongstad Power Station, a natural gas-fired thermal power plant, to provide the site with heat energy and electricity, as well as power to the Troll gas field.The first use of the site was in 1975, when Statoil opened its refinery.At the end of the 1980s, the refinery was expanded to the tune of , resulting in the Mongstad scandal after a overexpenditure on the facility, costing several Statoil executives their jobs.