The country’s exports of so-called sour crude — the heavy, dense kind that many refineries are designed to process — now stand to shrink even further as state-controlled oil company Pemex has canceled some supply contracts to foreign refiners, Bloomberg News reported last week.
That decision has roiled oil markets around the world. Mars Blend, a medium-density sour crude from the US Gulf Coast, has in recent days risen to a multi-year premium over lighter West Texas Intermediate, the national benchmark. Mars usually trades at a discount to WTI. Brent crude hit $90 a barrel on Thursday, the highest since October, and extended gains on Friday. JPMorgan Chase & Co. has said it could hit $100 by August or September.
Canadian Cold Lake oil priced at the Gulf Coast traded at the narrowest discount to WTI in almost a year. Key indicators for Middle Eastern medium-sour crude, such as Oman and Dubai contracts, are rallying too.
Before Mexico’s move, there was a sequence of supply disruptions both large and small. In January, a deep freeze ate away at crude output and inventories in the US at a time when they would normally grow, keeping stockpiles below seasonal averages through late March.
Mexico, the US, Qatar and Iraq cut their combined oil flows by more than 1 million barrels a day in March, tanker tracking data compiled by Bloomberg show. Baghdad has pledged to limit output to make up for non-compliance with prior pledges to the Organization of the Petroleum Exporting Countries and its allies, known as OPEC+.
Adding to the tightness, OPEC member the United Arab Emirates curbed shipments of Upper Zakum, a medium-sour oil, by 41% in March compared with last year’s average, according to data from maritime intelligence firm Kpler. The state oil company is diverting more supplies of that crude to its own refinery, traders said. Though the cuts were expected and Abu Dhabi National Oil Co. is offering buyers another type of crude as a substitute, the decline in Upper Zakum exports is contributing to higher regional prices amid the broader OPEC+ curtailment.
Crude markets in Europe, meanwhile, were pressured higher by the Houthi attacks in the Red Sea, which sent millions of barrels of crude on a detour around Africa, delaying some supplies for weeks. Disruptions to a key North Sea pipeline, unrest in Libya and a damaged pipe in South Sudan also contributed to the rally, while US sanctions have deprived Russia of tankers that previously transported its oil to buyers including India.
The supply pinch could become even more acute in the weeks ahead. With President Nicolas Maduro showing no sign of heeding promises to move toward free and fair elections, the Biden administration could reimpose sanctions this month.
The market for heavier, dirtier oil “has been rangebound to bearish for some time now, but this tightness in sour markets and the outlook for the summer driving season in the US suggest the market is turning a corner,” said Samantha Hartke, an analyst with analytics firm Sparta Commodities.