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-1535 --- Date: March 02, 2026 --- Sample Location: Hardisty

The March 2nd sample of Western Canadian Select saw slightly reduced density. The new light ends testing method showed reduced BTEX, hexanes, and heptanes. Simulated distillation results showed a smaller than usual residue fraction.

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Safety Data Sheets

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Property (unit)	Most Recent: 2026-03-02	6 Month Average	1 Year Average	5 Year Average
Density (kg/m³)	920.8	926.5	927.3	926.8
Gravity (°API)	22.1	21.1	21.0	21.1
Sulphur (wt%)	3.62	3.69	3.73	3.67
Micro Carbon Residue (wt%)	9.75	9.98	9.91	9.90
Sediment (ppmw)	250	249	211	209
Total Acid Number (mgKOH/g)	1.00	0.97	0.97	0.92
Salt (ptb)	17.8	13.2	12.4	11.9
Nickel (mg/kg)	51.8	53.6	53.7	54.3
Vanadium (mg/kg)	133.0	133.8	135.7	131.5

Component by GC/FID	Most Recent: 2026-03-02	6 Month Average	1 Year Average	5 Year Average
C3- (vol%)	0.05	0.08	0.09	0.10
iC4 iso-Butane (vol%)	0.66	0.79	0.78	0.85
nC4 n-Butane (vol%)	1.50	1.77	1.75	1.84
iC5 iso-Pentane (vol%)	2.03	2.19	2.32	2.43
nC5 n-Pentane (vol%)	2.25	2.43	2.54	2.67
C6 Hexanes (vol%)	3.18	3.64	3.81	4.04
C7 Heptanes (vol%)	2.48	2.96	3.06	3.13
C8 Octanes (vol%)	2.31	2.53	2.62	2.55
C9 Nonanes (vol%)	1.28	1.60	1.75	1.74
C10 Decanes (vol%)	1.17	0.99	0.97	0.90

Component by GC/FID	Most Recent: 2026-03-02	6 Month Average	1 Year Average	5 Year Average
Benzene (vol%)	0.06	0.11	0.12	0.13
Toluene (vol%)	0.20	0.25	0.27	0.30
Ethylbenzene (vol%)	0.01	0.04	0.05	0.06
Xylenes (vol%)	0.10	0.26	0.31	0.34

Mass % Recovered by ASTM D7169	Most Recent: 2026-03-02 (°C)	5 Year Average (°C)	Most Recent: 2026-03-02 (°F)	5 Year Average (°F)
IBP	-2.2	18.4	28.0	65.1
5	57.3	47.9	135.1	118.2
10	106.8	114.5	224.2	238.1
20	229.5	249.6	445.1	481.3
30	315.3	329.7	599.5	625.5
40	385.4	397.5	725.7	747.5
50	449.7	461.8	841.5	863.2
60	517.4	534.2	963.3	993.6
70	594.4	616.9	1,101.9	1,142.4
80	674.6	703.6	1,246.3	1,298.5
90	---	---	---	---
95	---	---	---	---
99	---	---	---	---

Component by GC/FID	Most Recent: 2026-03-02	6 Month Average	1 Year Average	5 Year Average
C3- (mass%)	0.03	0.04	0.05	0.05
iC4 iso-Butane (mass%)	0.41	0.48	0.48	0.52
nC4 n-Butane (mass%)	0.96	1.12	1.11	1.17
iC5 iso-Pentane (mass%)	1.38	1.48	1.56	1.64
nC5 n-Pentane (mass%)	1.54	1.66	1.73	1.82
Hexanes (mass%)	2.29	2.61	2.73	2.89
Heptanes (mass%)	1.85	2.20	2.27	2.33
Octanes (mass%)	1.77	1.93	2.00	1.94
Nonanes (mass%)	1.00	1.24	1.36	1.35
Decanes (mass%)	0.93	0.78	0.76	0.72

Component by GC/FID	Most Recent: 2026-03-02	6 Month Average	1 Year Average	5 Year Average
Benzene (mass%)	0.06	0.10	0.11	0.12
Toluene (mass%)	0.19	0.24	0.26	0.28
Ethylbenzene (mass%)	0.01	0.04	0.05	0.06
Xylenes (mass%)	0.09	0.24	0.29	0.32

Property (units)	Five Year Average	2026-03-02	2026-02-13	2026-02-01	2026-01-16	2026-01-06	2025-12-10
Density (kg/m³)	926.8 ± 5.1	920.8	921.0	921.3	921.3	922.3	929.2
Gravity (°API)	21.1 ± 0.8	22.1	22.1	22.0	22.0	21.9	20.7
Sulphur (wt%)	3.67 ± 0.11	3.62	3.57	3.65	3.56	3.53	3.73
Micro Carbon Residue (wt%)	9.90 ± 0.35	9.75	10.4	9.65	9.63	9.84	10.1
Sediment (ppmw)	209 ± 73	250	---	350	---	350	---
Total Acid Number (mgKOH/g)	0.92 ± ND	1.00	1.05	1.09	1.07	1.07	0.84
Salt (ptb)	11.9 ± 2.7	17.8	---	15.4	---	18.9	---
Nickel (mg/kg)	54.3 ± 3.5	51.8	50.7	57.3	51.3	54.3	55.2
Vanadium (mg/kg)	131.5 ± 6.7	133.0	131.0	145.0	119.0	127.0	138.0

Component by GC/FID	Five Year Average	2026-03-02	2026-02-13	2026-02-01	2026-01-16	2026-01-06	2025-12-10
C3- (vol%)	0.10 ± 0.02	0.05	0.07	0.07	0.07	0.07	0.11
iC4 iso-Butane (vol%)	0.85 ± 0.14	0.66	0.73	0.75	0.71	0.68	1.00
nC4 n-Butane (vol%)	1.84 ± 0.29	1.50	1.69	1.66	1.61	1.54	2.26
iC5 iso-Pentane (vol%)	2.43 ± 0.32	2.03	2.46	2.12	2.17	1.99	2.98
nC5 n-Pentane (vol%)	2.67 ± 0.34	2.25	2.71	2.36	2.39	2.23	3.24
C6 Hexanes (vol%)	4.04 ± 0.44	3.18	3.39	3.17	3.10	3.04	5.17
C7 Heptanes (vol%)	3.13 ± 0.38	2.48	2.63	2.67	2.56	2.64	4.19
C8 Octanes (vol%)	2.55 ± 0.30	2.31	2.33	2.52	2.40	2.45	3.33
C9 Nonanes (vol%)	1.74 ± 0.24	1.28	1.25	1.39	1.40	1.42	2.20
C10 Decanes (vol%)	0.90 ± 0.15	1.17	1.11	1.16	1.22	1.28	1.04

Component by GC/FID	Five Year Average	2026-03-02	2026-02-13	2026-02-01	2026-01-16	2026-01-06	2025-12-10
Benzene (vol%)	0.13 ± 0.02	0.06	0.07	0.08	0.07	0.08	0.19
Toluene (vol%)	0.30 ± 0.07	0.20	0.11	0.16	0.15	0.17	0.45
Ethylbenzene (vol%)	0.06 ± 0.02	0.01	0.01	0.01	0.02	0.02	0.09
Xylenes (vol%)	0.34 ± 0.08	0.10	0.08	0.18	0.03	0.07	0.49

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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