This Open File contains the gas chromatograms of light hydrocarbon (C5-C8) and saturate fractions of oil samples recovered during drillstem tests of the Bakken Fomation (9 samples) and Madison Formation (88 samples) for wells drilled in the southeastern Saskatchewan and southwestern Manitoba part of the Williston Basin. Geochemical and geological interpretation of these data have been partially published in journals and /or presented publicly. Further publications based on these data on data from GC-MS analysis of saturated and aromatic biomarkers are in process.
Both the light hydrocarbon and saturate fraction gas chromatograms have been obtained over the last ten years or so. More than one temperature program has been used for the gas chromatography of saturate fractions and consequently there is some variation in retention times between different samples.