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Gulf coast sour crude trades above sweet on SPR refill

  • Spanish Market: Crude oil
  • 23/08/23

US Gulf medium sour Southern Green Canyon (SGC) traded 42¢/bl above light sweet WTI Houston yesterday, supported by sour crude deliveries to US strategic reserves on the Texas Gulf coast.

SGC traded at a $1.90/bl premium to Nymex-quality WTI yesterday, while WTI Houston traded at premiums between $1.45-$1.55/bl.

The US Strategic Petroleum Reserve (SPR) Big Hill site near where SGC comes ashore is due to receive 3.3mn bl of US-produced sour crude in September, as the administration of President Joe Biden looks to refill US reserves after the 180mn bl emergency sale last year.

Medium sour grades typically trade at discounts to light sweet crude. SGC is averaging about a $2.80/bl discount to WTI Houston so far in 2023. But that discount has shrunk to 67¢/bl on average for the current September trade month, as the SPR deliveries provide additional demand.

The US Department of Energy (DOE) had planned to continue the SPR refill in October and November, but the plans to purchase an additional 6mn bl of crude were called off after a rise in prices.

With the September trade month to conclude on Friday, October SGC is poised to return to more typical discounts to light sweet grades as demand from the SPR concludes.


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