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The aim of this study was to identify, through econometric models, which variables can explain the prices of pipeline transportation for crude oil and petroleum products. For this purpose, it was used a database of United States Companies, with rates charged between 2011 and 2013. The estimated regressions show, as it results, that pipeline length and diameter are critical variables to explain the charged rates for pipeline transportation. Through robustness tests, we found out that the inclusion of a variable for product type also influences the transportation price. [ABSTRACT FROM AUTHOR]