المصادر :- https://edition.cnn.com/2020/03/09/business/oil-price-crash-explainer/index.html

https://oilprice.com/Energy/Energy-General/Do-Saudi-Arabia-And-Russia-Really-Want-To-Kill-US-Shale.html

https://knoema.com/rqaebad/cost-of-producing-a-barrel-of-crude-oil-by-country

https://www.cnbc.com/2018/07/13/risks-rising-that-oil-prices-will-cause-next-recession.html

https://www.bloomberg.com/news/articles/2020-03-09/oil-crash-sends-new-shock-through-world-crippled-by-virus

https://economictimes.indiatimes.com/news/international/business/the-changing-winners-and-losers-from-oils-historic-plunge/articleshow/74570524.cms?from=mdr

https://nationalinterest.org/blog/buzz/how-far-reaching-will-oil-crisis-2020-be-132932

https://markets.businessinsider.com/news/stocks/oil-price-could-go-negative-coronavirus-opec-war-boosts-supply-2020-3-1029009784

https://www.bnnbloomberg.ca/russia-admits-need-to-bolster-oil-but-does-not-reach-out-to-opec-1.1408124

https://finance.yahoo.com/news/putin-risky-oil-gamble-pay-220000326.html?guccounter=1&guce_referrer=aHR0cHM6Ly93d3cuZ29vZ2xlLmNvbS8&guce_referrer_sig=AQAAANFFIAC9IlS99UvJVLYjtr5SXrnNpiyfDmsm6i9_VO52Uo3KTW4qPIcTzQ-bBfH80S4W3hU3W0sbVkU_8PuIZjvtiq-hBUAxEO_5HxkpOsnNAqVufjx1D5wjPyC3zQXKGx8klKlbJp7FrINeJnOj-jaxYaDyUxBMLsaNzz5JDIn9