EIA recently added information on rail movements of propane, propylene, normal butane, and isobutane to its monthly petroleum data. These four products make up the majority of hydrocarbon gas liquids (HGL) moved by rail. This data adds transparency to market supply and demand dynamics for regions that are a source or destination for these products. Meanwhile, the growth in HGL-by-rail highlights market changes resulting from increased U.S. HGL production. ...

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