Statistical Reports
The 2001-2006 results for the Heavy Crude Quality Monitoring program have been summarized and statistically tested and reported. The results of the statistical review are available through the following selections.
Summary properties sheets are available for light streams and heavy streams.
Charts
To get charts of different parameters of different crudes over time, select them below. Note: the trend lines in all charts are 3rd order polynomial (cubic spline fit). This 3rd order regression trending may not be the best method in all cases, however its applicability in trending seasonal changes across a wide range of properties does make it the best trending method for general and consistent use across all crudes and all properties.
Right click and select "Save picture as..." or "Save image as..." to download. These images are full scale 8 1/2" x 11" landscape when downloaded.
Note that we have not received data for various crudes over various years. Though we have tried to be as consistent as possible, some of the charts have different Y axis scales.
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