"When testing for the asymmetry relating to the magnitude of oil price changes, we find that stock return sensitivities are significantly higher for large oil variations in Oman and Qatar," the IMF working paper said.
Oil fell more than 1 percent on Monday as markets opened following western air strikes in Syria over the weekend, while a rise in US drilling for new production also dragged on prices.
Opec and its allies should maintain oil supply curbs to guarantee healthy price levels which will allow increased investment in the industry and help avoid a supply and price shock in the long run, Qatar's Minister of Energy and Industry HE Dr Mohamed bin Saleh al-Sada said.
Oil fell on Thursday, giving up earlier gains after Opec members agreed to extend curbs on output to the end of next year at a meeting in Vienna, though a final deal hinges on the decision of non-Opec producers, expected towards the end of the day.
Crude oil rose for a sixth straight session on Thursday to its highest since June 19 on a decline in US output, but ongoing worries about global oversupply continued to drag.
Saudi Arabia's energy minister Khalid Al-Falih said on Monday that oil markets were rebalancing after years of oversupply, but that he still expected an Opec-led deal to cut output during the first half of the year to be extended to all of 2017.
Crude oil eased from a five-week high on Tuesday as rising US shale oil production offset concerns over geopolitical tensions in the Middle East and output cuts being made to support prices.