Western Canadian Select

Stream Description

Western Canadian Select is a Hardisty based blend of conventional and oilsands production managed by Canadian Natural Resources, Cenovus Energy, and Suncor Energy. Argus has launched daily volume-weighted average price indexes for Western Canadian Select (WCS) and will publish this index in the daily Argus Crude and Argus Americas Crude publications.

Most Recent Sample Details

Batch: WCS-4305 --- Date: September 01, 2026 --- Sample Location: Hardisty

Western Canadian Select saw elevated density, with reduced BTEX and C6 x C9 contents, for the September 1st sample. Simulated distillation results showed a larger than usual residue cut.

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Safety Data Sheets

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Property (unit)	Most Recent: 2026-09-01	6 Month Average	1 Year Average	5 Year Average
Density (kg/m³)	934.1	925.1	926.5	926.6
Gravity (°API)	19.9	21.4	21.2	21.1
Sulphur (wt%)	3.77	3.67	3.69	3.68
Micro Carbon Residue (wt%)	10.3	10.2	10.1	9.93
Sediment (ppmw)	150	212	232	208
Total Acid Number (mgKOH/g)	1.10	1.10	1.03	0.93
Salt (ptb)	14.2	16.3	14.2	12.2
Nickel (mg/kg)	59.4	58.2	55.8	54.7
Vanadium (mg/kg)	143.0	142.8	138.1	132.4

Component by GC/FID	Most Recent: 2026-09-01	6 Month Average	1 Year Average	5 Year Average
C3- (vol%)	0.06	0.07	0.08	0.09
iC4 iso-Butane (vol%)	0.71	0.65	0.73	0.83
nC4 n-Butane (vol%)	1.56	1.50	1.66	1.80
iC5 iso-Pentane (vol%)	2.27	2.36	2.27	2.44
nC5 n-Pentane (vol%)	2.43	2.54	2.48	2.68
C6 Hexanes (vol%)	2.65	2.93	3.33	3.98
C7 Heptanes (vol%)	2.23	2.46	2.74	3.10
C8 Octanes (vol%)	1.97	2.23	2.39	2.53
C9 Nonanes (vol%)	1.06	1.28	1.47	1.71
C10 Decanes (vol%)	0.90	1.07	1.01	0.92

Component by GC/FID	Most Recent: 2026-09-01	6 Month Average	1 Year Average	5 Year Average
Benzene (vol%)	0.06	0.09	0.10	0.13
Toluene (vol%)	0.12	0.22	0.24	0.30
Ethylbenzene (vol%)	0.02	0.03	0.04	0.05
Xylenes (vol%)	0.14	0.24	0.26	0.34

Mass % Recovered by ASTM D7169	Most Recent: 2026-09-01 (°C)	5 Year Average (°C)	Most Recent: 2026-09-01 (°F)	5 Year Average (°F)
IBP	-2.0	17.2	28.4	63.0
5	57.7	48.2	135.9	118.8
10	122.4	114.7	252.3	238.5
20	265.3	250.2	509.5	482.4
30	355.8	330.5	672.4	626.9
40	433.1	398.6	811.6	749.5
50	512.7	463.3	954.9	865.9
60	604.7	536.3	1,120.5	997.3
70	684.4	618.9	1,263.9	1,146.0
80	---	704.1	---	1,299.4
90	---	---	---	---
95	---	---	---	---
99	---	---	---	---

Component by GC/FID	Most Recent: 2026-09-01	6 Month Average	1 Year Average	5 Year Average
C3- (mass%)	0.03	0.04	0.04	0.05
iC4 iso-Butane (mass%)	0.43	0.40	0.45	0.51
nC4 n-Butane (mass%)	0.98	0.95	1.05	1.14
iC5 iso-Pentane (mass%)	1.52	1.59	1.53	1.65
nC5 n-Pentane (mass%)	1.64	1.74	1.69	1.83
Hexanes (mass%)	1.88	2.10	2.39	2.85
Heptanes (mass%)	1.64	1.83	2.03	2.30
Octanes (mass%)	1.49	1.70	1.82	1.93
Nonanes (mass%)	0.82	1.00	1.15	1.33
Decanes (mass%)	0.71	0.85	0.80	0.73

Component by GC/FID	Most Recent: 2026-09-01	6 Month Average	1 Year Average	5 Year Average
Benzene (mass%)	0.06	0.09	0.10	0.12
Toluene (mass%)	0.11	0.21	0.23	0.28
Ethylbenzene (mass%)	0.02	0.03	0.04	0.05
Xylenes (mass%)	0.13	0.23	0.24	0.31

Property (units)	Five Year Average	2026-09-01	2026-08-02	2026-07-07	2026-06-15	2026-05-11	2026-05-01
Density (kg/m³)	926.6 ± 5.2	934.1	934.1	930.3	927.6	921.0	922.1
Gravity (°API)	21.1 ± 0.9	19.9	19.9	20.6	21.0	22.1	21.9
Sulphur (wt%)	3.68 ± 0.10	3.77	3.85	3.91	3.60	3.63	3.57
Micro Carbon Residue (wt%)	9.93 ± 0.37	10.3	10.4	10.4	10.7	10.2	9.98
Sediment (ppmw)	208 ± 73	150	260	---	---	---	160
Total Acid Number (mgKOH/g)	0.93 ± 0.11	1.10	1.13	1.18	1.12	1.20	1.05
Salt (ptb)	12.2 ± 2.9	14.2	15.0	---	---	---	16.3
Nickel (mg/kg)	54.7 ± 3.7	59.4	62.2	73.9	52.7	62.5	59.2
Vanadium (mg/kg)	132.4 ± 8.2	143.0	153.0	181.0	129.0	158.0	142.0

Component by GC/FID	Five Year Average	2026-09-01	2026-08-02	2026-07-07	2026-06-15	2026-05-11	2026-05-01
C3- (vol%)	0.09 ± 0.02	0.06	0.06	0.06	0.05	0.13	0.05
iC4 iso-Butane (vol%)	0.83 ± 0.14	0.71	0.59	0.57	0.54	0.68	0.57
nC4 n-Butane (vol%)	1.80 ± 0.30	1.56	1.35	1.39	1.31	1.55	1.39
iC5 iso-Pentane (vol%)	2.44 ± 0.31	2.27	2.12	2.37	2.21	2.55	2.38
nC5 n-Pentane (vol%)	2.68 ± 0.34	2.43	2.31	2.50	2.41	2.74	2.57
C6 Hexanes (vol%)	3.98 ± 0.53	2.65	2.62	2.68	2.67	3.15	2.84
C7 Heptanes (vol%)	3.10 ± 0.41	2.23	2.41	2.25	2.29	2.55	2.71
C8 Octanes (vol%)	2.53 ± 0.31	1.97	1.98	1.95	2.07	2.39	2.43
C9 Nonanes (vol%)	1.71 ± 0.27	1.06	1.17	1.12	1.21	1.39	1.42
C10 Decanes (vol%)	0.92 ± 0.16	0.90	0.83	0.93	0.96	1.22	1.04

Component by GC/FID	Five Year Average	2026-09-01	2026-08-02	2026-07-07	2026-06-15	2026-05-11	2026-05-01
Benzene (vol%)	0.13 ± 0.03	0.06	0.08	0.07	0.08	0.11	0.10
Toluene (vol%)	0.30 ± 0.07	0.12	0.19	0.17	0.19	0.27	0.26
Ethylbenzene (vol%)	0.05 ± 0.02	0.02	0.04	0.03	0.03	0.04	0.04
Xylenes (vol%)	0.34 ± 0.09	0.14	0.24	0.21	0.22	0.30	0.33

Custom Cut Input
°C °F
Cut Name	Start Temperature	End Temperature
	IBP
	177
	343
	549

Western Canadian Select

Stream Description

Most Recent Sample Details

Last Six Sample Data

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Safety Data Sheets

Light Ends Mass% for Western Canadian Select

BTEX Mass% for Western Canadian Select

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Last Six Samples for Western Canadian Select

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