New Delhi, Sep 5 Finance Minister Arun Jaitley on Wednesday said that there was no need for a "knee jerk" reaction due to high prices of global crude oil."There is no straight-line movement of global crude oil prices," Jaitley said at a media briefing after the meeting of the Union Cabinet.According to Jaitley, crude oil prices edged higher in April and May whereas they calmed down in June and July."As I am saying these are not situations which merit knee-jerk and panic reaction. There is no straight-line movement in global oil prices," the minister said.When asked about the country's preparations to deal with any upsurge in global crude oil prices, Jaitley at a press briefing here said: "Policy formulation is never a rigid process."Recently, geo-political factors such as trade wars fears, upcoming Iran sanctions and conflicts in Middle East along with supply side constraints have led to a sharp increase in global crude oil prices.The rise in global crude oil prices pushes the domestic cost of petrol and diesel higher as the country is a net importer of crude oil.