OPET Petrolcülük A.Ş. is a Turkish company engaged in retail sales, as well as the sale of commercial and industrial fuels, mineral oils, warehousing and international sales. OPET Petroleum’s roots date from the fuel oil distribution company, "Öztürkler Petrol" founded by Fikret Öztürk.
Having a 50% partnership with Koç Holding Energy Group as of the end of 2002, OPET has focused on infrastructure investments since its inception. OPET’s warehousing capacity has reached 1.076.318 cubic meters as of 2010. OPET is the first firm ever to have brought 98 octane unleaded fuel to Turkey and introduced Ultra Euro Diesel fuel to the Turkish consumers before it was launched in the European market. Still being the 3rd biggest fuel oil distribution company of Turkey, OPET has more than 1200 gas stations along with its SUNPET trademark.
OPET awarded as best customer satisfied company for 10 times consequently as of 2015.