Oil prices whipsawed on Thursday morning as traders reacted to comments from OPEC delegates ahead of a widely anticipated extension of the OPEC-led production cut agreement.

"Nine months with the same level of production that our member countries have been producing at is a very safe and almost certain option to do the trick," Khalid Al-Falih, Saudi Arabia's energy and industry oil minister told CNBC ahead of the closed-door meeting on Thursday.

Saudi Arabia's delegate explained while all options had been considered ahead of the announcement - including deeper cuts and a possible six-month extension - he suggested reaching an agreement to curtail oil production by a further nine months appeared the "safe bet".

Oil prices contracted sharply just minutes after Falih's comments, with Brent, the international crude oil benchmark, shedding $1 a barrel immediately afterward. Oil's fall is believed to be due to traders feeling disappointed at the lack any deeper cuts to its production. Miswin Mahesh, an oil analyst at Energy Aspects, told CNBC via telephone that "oil prices are always choppy at this point" when OPEC meetings are happening.