PREEM with its two refineries in Lysekil and Gothenburg is positioned among the most modern, environmentally-sound and energy efficient refineries in Europe. Preem AB’s business operation comprises three parts – supply and trading, production and marketing and sales. Refining activities take place at the facilities in Lysekil and Gothenburg where crude oil is refined and then finished goods delivered to own depots around the country. Capacity is approximately 345,000 barrels per calendar year. PREEM Refinery in Lysekil has a Field Analytical Department working with approx. 200 different analyzers. The Analyser group are five Analyser technicians, one engineer and one manager. A lot of the analysers are online measurements and have own control/verification systems. Siemens AG are our main contractor for all gas chromatographs.