Kemp: Mind The Gap - Brent And WTI Point In Opposite Directions

Kemp: Mind The Gap - Brent And WTI Point In Opposite Directions
Commodity markets abhor a gap and will find a way to arbitrage it away.


(John Kemp is a Reuters market analyst. The views expressed are his own)

LONDON, Sept 12 (Reuters) - Commuters and tourists are regularly warned to “mind the gap” between train doors and the platform at certain stations on the London Underground.

But the warning could just as easily apply to traders in Brent and WTI after the two crude benchmarks diverged sharply over the last month.

Commodity markets abhor a gap and will find a way to arbitrage it away. Such a large gap between forward Brent and WTI prices is unlikely to persist for every long.

Either Brent prices and calendar spreads must weaken, WTI prices and spreads must strengthen, or some combination of both.

In the short term, Hurricanes Harvey and Irma have extensively disrupted oil refineries, distribution systems and motorists along the U.S. Gulf Coast.

The result has been to cut refinery consumption of domestic crude and depress the price of WTI compared with Brent.

WTI futures for delivery in November 2017 are trading at a discount to Brent of around $5.30 per barrel compared with $2.75 on Aug 14 (

WTI is trading in a contango of about 44 cents per barrel between November 2017 and December 2017 compared with a backwardation of 22 cents in Brent (

Backwardation in Brent is consistent with a tightening global oil market while contango in WTI is consistent with local oversupply of crude as a result of refinery shutdowns and the closure of export terminals.

Most of this can be put down to temporary disruptions caused by the hurricanes.

Restarting refineries after flooding is a slow and complicated process plagued with safety risks ("After Harvey: precautions needed during oil and chemical facility start up", U.S. Chemical Safety Board, Aug 2017).

And U.S. export terminals were badly affected by the storm which cut crude exports to just 153,000 barrels per day in the week ending on Sept.1 compared with 902,000 bpd the week before.

So the hurricanes will almost certainly leave the United States with a short-term build up of crude stocks that could linger for some weeks or months until it can be exported or absorbed by domestic refineries.


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