What is WTI-Cushing crude?

The West Texas Intermdiate (WTI) designation is often used interchangeably with Domestic Sweet Crude Oil. The latter is a fully blended aggregate of many streams, not all of which originate from west Texas. Historical WTI-Cushing test results are included for comparison purposes only, and are limited with respect to light ends and distillation data.

Most Recent Sample Comments:
WTI-C-152, Feb 2, 2018

Last 6 Samples

The February 2nd sample of WTI at Cushing was consistent with historical data in all aspects. Typical merged simulated distillation results are included.

Light Ends Summary

Property (vol%)Most Recent Sample6 Month Average1 Year Average5 Year Average
C3- 0.85 0.87 0.79 0.37
Butanes 2.49 2.44 2.30 2.30
Pentanes 4.37 4.35 4.33 4.33
Hexanes 4.66 4.65 4.78 4.78
Heptanes 8.67 7.66 8.10 8.10
Octanes 5.60 5.84 6.30 6.30
Nonanes 3.05 3.66 4.47 4.47

BTEX

Property (vol%)Most Recent Sample6 Month Average1 Year Average5 Year Average
Benzene 0.23 0.22 0.22 0.22
Toluene 1.82 0.73 0.68 0.68
Ethyl Benzene 0.12 0.11 0.12 0.12
Xylenes 0.70 0.71 0.77 0.77

COQA Recommended Analysis

PropertyMost Recent Sample6 Month Average1 Year Average5 Year Average
Gravity (oAPI) 41.50 41.31 41.33 41.16
Density (kg/m3) 817.8 818.1 818.0 818.8
Sulfur (wt%) 0.405 0.402 0.406 0.403
MCR (wt%) 1.80 1.82 1.80 1.74
TAN (mgKOH/g) 0.10 ND ND ND
Nickel (mg/kg) 4.94 5.31 5.21 4.97
Vanadium (mg/kg) 14.90 16.05 15.32 14.31
220oF minus
(HTSD mass%)
16.5 16.7 17.1 17.1
Temp at 50 mass% (oF) 551.5 553.3 533.4 533.4
1020oF resid
(HTSD mass%)
16.4 15.8 14.0 14.0

*ND indicates a tested value below the instrument threshold.

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