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Crude grade comparison

Alaska North Slope vs Arab Medium

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 – Arab Medium spread +15.97 USD/BBL · Alaska North Slope premium
Saudi Arabia (multiple fields)

Arab Medium

$73.93USD/BBL
▲ +0.01 (+0.01%)
Class
Medium/Sour
API
31.5°
Sulfur
2.49%

Alaska North Slope Crude vs Arab Medium Crude: on July 06, 2026 Alaska North Slope settled at $89.90/bbl (0.00%) and Arab Medium at $73.93/bbl (+0.01%), putting Alaska North Slope $15.97 above Arab Medium. Alaska North Slope is medium/sour crude (31.9° API, 0.93% sulfur); Arab Medium is medium/sour crude (31.5° API, 2.49% sulfur).

Price history

Alaska North Slope vs Arab Medium price chart

Daily assessed prices in USD per barrel and the spread between them.

  • Alaska North Slope Crude
  • Arab Medium Crude
30-day Alaska North Slope avg
$101.33
30 shared days
30-day Arab Medium avg
$99.32
30 shared days
Average spread
+2.01
Alaska North Slope minus Arab Medium
Days Alaska North Slope above
10 / 30
widest $13.62 on 2026-06-11

Alaska North Slope – Arab Medium spread $/bbl · above zero: Alaska North Slope premium · below zero: Arab Medium premium

Free view: last 30 days. Gaps mark days with no assessment. Subscribe for longer history and Excel export.

View as table
DateAlaska North SlopeArab MediumSpread
05 Jun 2026-103.27-
02 Jun 2026-101.87-
01 Jun 2026-101.87-
29 May 2026-100.35-
28 May 2026-102.30-
27 May 2026-103.52-
22 May 2026-111.40-
20 May 2026-115.21-
18 May 2026-117.35-
14 May 2026-112.82-
13 May 2026-113.65-
12 May 2026-112.59-
11 May 2026-111.42-
05 May 2026-119.29-
04 May 2026-119.29-
01 May 2026-119.29-
29 Apr 2026-118.05-
28 Apr 2026-118.45-
27 Apr 2026-117.73-
24 Apr 2026-117.12-
06 Jul 202689.90--
02 Jul 202689.90--
01 Jul 202689.90--
30 Jun 202689.90--
29 Jun 202689.90--
26 Jun 202689.90--
25 Jun 202689.90--
23 Jun 202689.90--
22 Jun 202689.90--
18 Jun 2026104.55--
17 Jun 2026104.55--
16 Jun 2026104.55--
15 Jun 2026104.55--
12 Jun 2026104.55--
11 Jun 2026104.5590.93+13.62
10 Jun 2026104.5592.43+12.12
09 Jun 2026104.5594.77+9.78
08 Jun 2026104.5598.28+6.27
04 Jun 2026106.53105.67+0.86
03 Jun 2026106.53106.10+0.43000000000001
21 May 2026116.17112.75+3.42
19 May 2026116.17115.94+0.23
15 May 2026116.17114.46+1.71
08 May 2026115.54105.72+9.82
25 Apr 2026109.05--
17 Apr 202690.38--
10 Apr 2026109.36--
Price analysis

Highs and lows by period

PeriodAlaska North SlopeArab Medium
HighLowRangeHighLowRange
7 Days---%---%
30 Days---%---%
90 Days---%---%
180 Days116.1789.922.61%117.3573.0137.78%
365 Days116.1789.922.61%119.2973.0138.8%

Range = (high − low) ÷ high.

Daily prices

Recent prices & spread

DateAlaska North SlopeChgArab MediumChgSpread
109.360
90.38-18.98
109.05+18.67
115.54+6.49105.72-13.57+9.82
116.17+0.63114.46+1.64+1.71
Full daily history for both grades since 2019 is available to subscribers.Subscribe now
Crude quality

Quality & refinery yields

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

  • Alaska North Slope Crude
  • Arab Medium Crude

Physical & chemical properties

API gravityhigher = lighter
ANS31.9°
AM31.5°
Sulfur contenthigher = sourer
ANS0.93%
AM2.49%
Densityhigher = heavier
ANS0.87 g/cm³
AM0.87 g/cm³
Viscosityhigher = thicker
ANS7.8 cSt
AM10 cSt
Pour pointhigher = waxier
ANS15 °C
AM18 °C

Typical refinery yields

Gasoline% of barrel
ANS36-40%
AM18-22%
Diesel% of barrel
ANS32-36%
AM40-44%
Jet fuel% of barrel
ANS10-12'%
AM10-12'%
Residual fuel% of barrel
ANS16-20%
AM20-25%

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

Full specification comparison

PropertyAlaska North Slope CrudeArab Medium CrudeAlaska North Slope − Arab Medium
Classification
ClassificationMedium/SourMedium/Sour
OriginUSA (Alaska)Saudi Arabia (multiple fields)
Chemical properties
API gravity31.9° API31.5° API+0.4 °API
Sulfur content0.93%2.49%-1.56%
Density0.87 g/cm³0.87 g/cm³0 g/cm³
Pour point15 °C18 °C-3 °C
Viscosity7.8 cSt10 cSt-2.2 cSt
Typical refinery yields
Gasoline36-40%18-22%+18 pts
Diesel32-36%40-44%-8 pts
Jet fuel10-12'%10-12'%0 pts
Residual fuel16-20%20-25%-5 pts
Trading & logistics
Delivery basisValdez, Alaska (US West Coast)Ras Tanura, Jubail
Major exchangesPlatts (ANS West Coast); CMESaudi OSP
Export hubValdez, AlaskaRas Tanura, Jubail
Main destinationsUS West Coast, AsiaAsia-Pacific, Europe
Benchmark typeRegional (US WC)Regional/Global
Market profile
Key characteristicsUS West Coast benchmark, moderate sour gradeSaudi Arabia medium sour, balanced yields
Refining notesModerate distillate yield; significant fuel oil portionBalanced refinery feedstock
FAQ

Alaska North Slope vs Arab Medium 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 Arab Medium Crude $73.93 per barrel, so Alaska North Slope traded at a premium of $+15.97 over Arab Medium. Over the previous 30 shared price days the spread averaged +2.01 $/bbl, with Arab Medium priced above Alaska North Slope on 10 day(s).

Alaska North Slope Crude is a medium/sour USA (Alaska) crude (31.9° API, 0.93% sulfur) and Regional (US WC) benchmark. Arab Medium Crude is a medium/sour Saudi Arabia (multiple fields) crude (31.5° API, 2.49% sulfur) and Regional/Global benchmark.
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