The global oil supply monthly report provides analysis on short-term global oil supply through 2020. The written document is accompanied by a related excel data download. Strong non-OPEC supply growth countered by declining OPEC production continues to be a central theme in our short term supply outlook. Revisions to the outlook made since last month echo this: non-OPEC supply has been revised up by around 140,000 b/d in 2019, while OPEC supply is revised down by 160,000 b/d. The focus of uncertainty and risk is on OPEC this year. Crude oil production fell to 30.2 million b/d in March, the lowest level since early 2015. Production cuts primarily led by Saudi Arabia, US sanctions targeting Iran exports and a combination of sanctions and a deteriorating operating environment in Venezuela have all contributed to the fall.