Oil Forecast: Is a Multi-Million Barrel Surplus Approaching in 2027?

Morgan Stanley has cut its crude price forecasts for the second time in two weeks, citing a faster-than-expected normalisation of flows through the Strait of Hormuz alongside resilient US supply and persistently weak Chinese demand that has pushed the global oil market back into surplus territory.

The forecast revision sent ripples through energy markets, reinforcing a bearish narrative that has capped recent rallies in crude benchmarks. Dated Brent crude has traded in a compressed US$72–78 range over recent sessions, struggling to hold gains above US$75 per barrel as the bank’s downgrade validated concerns about oversupply heading into the second half of the year. The shift marks a dramatic reversal from April, when geopolitical tensions around the Strait of Hormuz had pushed Brent above US$110 per barrel on disruption fears.

Morgan Stanley’s latest projections now see Dated Brent averaging US$75 per barrel in both the third and fourth quarters of 2026, representing cuts of US$15 and US$5 respectively from the bank’s previous forecasts issued just weeks earlier. More significantly, the Wall Street firm has lowered its outlook for all four quarters of 2027, with Dated Brent expected to drift to US$70 per barrel by year-end 2027 as a structural surplus takes hold.

What is happening in oil markets?

The bank’s revised outlook centres on what its analysts describe as “twin solvers” that have fundamentally altered the supply-demand equation: robust US crude exports providing flexible barrels to global markets, and unexpectedly low Chinese import volumes as the world’s largest crude buyer grapples with slower economic growth and accelerating electric vehicle adoption.

Morgan Stanley’s analysis points to an implied global surplus of approximately 4.8 million barrels per day in 2027, a stark contrast to the tighter market conditions many forecasters had anticipated earlier this year. The bank argues that the market has come “full circle – back to surplus,” with attention now shifting from near-term disruption risks to medium-term oversupply concerns.

The Strait of Hormuz, through which roughly one-fifth of global oil supply transits, has seen flows recover more rapidly than Morgan Stanley’s April and May base-case scenarios assumed. This faster normalisation has unwound much of the war-risk premium that had supported prices earlier in the spring, removing a key pillar of the bullish narrative.

On the supply side, US production has proved more resilient than many expected, with operators maintaining high output levels and export volumes even as prices have moderated. Non-OPEC supply growth from the United States, Guyana, Brazil and Canada is now projected to outpace global demand increases by a significant margin, leaving less room for OPEC+ barrels in the market.

Chinese demand has emerged as perhaps the most significant bearish factor. Refiners in China have adopted a cautious stance amid slower macroeconomic growth, rising petrochemical overcapacity, and the rapid penetration of electric vehicles in the transport sector. This has translated into lower crude import volumes and increased product exports, pressuring refining margins and further dampening the call on global crude supplies.

The outlook

Morgan Stanley’s downgrade aligns with a broader shift in Wall Street sentiment toward oil markets. Goldman Sachs has similarly cut its 2027 Brent forecast to around US$80 per barrel, citing stronger non-OPEC supply and persistently weak demand, particularly from China. Rabobank has also lowered its projections, describing a “softer path” for both Brent and WTI as geopolitical premiums fade and supply normalises.

The convergence of multiple tier-one investment banks around a US$70–80 Brent range for 2027 creates a powerful anchoring effect on market expectations, making it more difficult for sustained rallies to take hold without a fresh supply shock or significant shift in OPEC+ policy.

The structural drivers behind the surplus narrative extend beyond cyclical factors. Forecasts from the International Energy Agency and major banks increasingly point to non-OPEC+ supply growth of around 8 million barrels per day by 2027, against demand growth of only 2 million barrels per day. This imbalance suggests the “call on OPEC+” – the volume of crude the cartel needs to supply to balance markets – will decline materially, forcing the group to either maintain production discipline through extended cuts or accept lower prices.

For OPEC+, the dilemma is acute. The group has already implemented significant production cuts to support prices, but the effectiveness of this strategy is being undermined by rising non-OPEC supply and demand headwinds. If the cartel opts to defend market share rather than price, crude could test levels below Morgan Stanley’s US$70 floor. Conversely, deeper or extended cuts could provide upside to current forecasts, though this would require a level of coordination and discipline that has proved elusive in recent years.