Oil prices continued to grow on Thursday amid new risks of supply reduction. Washington announced new restrictions against the Iranian oil sector, including a Chinese independent refiner, which increased tensions around supply. The impact is also influenced by the approaching Easter holidays, which made Thursday the last trading day of the week.However, the oil market remains under pressure amid expectations of OPEC, the international energy agency and leading banks including Goldman Sachs and JPMorgan revising downward their demand and price estimates.