Crude grade comparison

Alaska North Slope vs Cusiana

Price, Alaska North Slope spread, quality and refinery yields side by side. Updated .

USA (Alaska)

Alaska North Slope

$89.90USD/BBL
■ 0.00(0.00%)
Class
Medium/Sour
API
31.9°
Sulfur
0.93%
VS
Alaska North Slope – Cusiana spread -- USD/BBL · Alaska North Slope premium
Colombia (Cusiana field, Putumayo)

Cusiana

--
--
Class
Medium/Sour
API
26°
Sulfur
0.7%

Alaska North Slope Crude vs Cusiana Crude: on July 06, 2026 Alaska North Slope settled at $89.90/bbl (0.00%) and Cusiana price information is not available. Alaska North Slope is medium/sour crude (31.9° API, 0.93% sulfur); Cusiana is medium/sour crude (26° API, 0.7% sulfur).

Crude quality

Quality & refinery yields

How the two crudes differ in the barrel. Each property uses its own scale.

  • Alaska North Slope Crude
  • Cusiana Crude

Physical & chemical properties

API gravityhigher = lighter
ANS31.9°
C26°
Sulfur contenthigher = sourer
ANS0.93%
C0.7%
Densityhigher = heavier
ANS0.87 g/cm³
C0.89 g/cm³
Viscosityhigher = thicker
ANS7.8 cSt
C25 cSt
Pour pointhigher = waxier
ANS15 °C
C20 °C

Typical refinery yields

Gasoline% of barrel
ANS36-40%
C28-32%
Diesel% of barrel
ANS32-36%
C30-34%
Jet fuel% of barrel
ANS10-12'%
C10-12'%
Residual fuel% of barrel
ANS16-20%
C20-26%

Bars show each yield range; the faint part runs from 0 to the low end. Scale 0–50%.

Full specification comparison

Full specification comparison of Alaska North Slope Crude and Cusiana Crude
PropertyAlaska North Slope CrudeCusiana CrudeAlaska North Slope − Cusiana
Classification
ClassificationMedium/SourMedium/Sour
OriginUSA (Alaska)Colombia (Cusiana field, Putumayo)
Chemical properties
API gravity31.9° API26° API+5.9 °API
Sulfur content0.93%0.7%+0.23%
Density0.87 g/cm³0.89 g/cm³-0.02 g/cm³
Pour point15 °C20 °C-5 °C
Viscosity7.8 cSt25 cSt-17.2 cSt
Typical refinery yields
Gasoline36-40%28-32%+8 pts
Diesel32-36%30-34%+2 pts
Jet fuel10-12'%10-12'%0 pts
Residual fuel16-20%20-26%-6 pts
Trading & logistics
Delivery basisValdez, Alaska (US West Coast)Coveñas Terminal
Major exchangesPlatts (ANS West Coast); CMESpot differential
Export hubValdez, AlaskaCoveñas Terminal
Main destinationsUS West Coast, AsiaCaribbean, US Gulf
Benchmark typeRegional (US WC)Regional
Market profile
Key characteristicsUS West Coast benchmark, moderate sour gradeColombian heavy-medium crude, declining production
Refining notesModerate distillate yield; significant fuel oil portionMature field, blended with lighter grades
FAQ

Alaska North Slope vs Cusiana questions

The spread, the quality gap and why each grade is a benchmark.

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July 06, 2026 Alaska North Slope Crude was $89.90 and Cusiana Crude $ per barrel, so Cusiana traded at a premium of $0 over Alaska North Slope. Over the previous 30 shared price days the spread averaged -- $/bbl, with Cusiana priced above Alaska North Slope on 0 day(s).

Alaska North Slope Crude is a medium/sour USA (Alaska) crude (31.9° API, 0.93% sulfur) and Regional (US WC) benchmark. Cusiana Crude is a medium/sour Colombia (Cusiana field, Putumayo) crude (26° API, 0.7% sulfur) and Regional benchmark.