Turkey's sole oil refiner Tupras said on Friday that its profit in the second quarter was 710.07 million lira ($255.87 million).
Tupras, which is owned by Koc Holding, outperformed a Reuters forecast of 509 million lira.
Its sales rose 10.45 percent to 10.6 billion lira.
($1 = 2.7751 liras)
(Reporting by Ece Toksabay, writing by Jonny Hogg)