Oil prices remained flat heading into the week amid the prospect of a stalled Iran nuclear deal and the threat of new sanctions on Russia following its latest actions on Wednesday.
Most recently, a senior US State Department official said efforts to restore the 2015 Iran nuclear deal had stalled following Tehran's insistence on shutting down the UN nuclear watchdog's investigation.
Generally it is a positive factor for the black commodity since this also means that Iran's oil supply will not flow back to the market.
However, oil prices failed to rise following the decision of the Federal Reserve (Fed) to raise interest rates in its latest meeting, continuing to bleak the outlook for economic growth and demand.
Meanwhile, the European Union (EU) is reportedly planning new sanctions against Russia after it announced additional military deployments to Ukraine on Wednesday and threatened to use nuclear weapons.
During the Asian trading session, Brent crude oil futures traded hovering at $90 per barrel, while US WTI traded little changed at $83 per barrel.
Overall, crude oil trading remained around the same price throughout the week.
