There is much debate on the environmental effect of pumping tar sands from Canada to be refined in Texas but so far I have not heard where this oil is to be processed. The biggest oil refinery plant in the World is at Baytown, Houston and presumably it will handled there. This refinery, like many others, is very close to sea level and with one or two meters of sea level rise in the next ninety years and being in a hurricane area there must surely be some concern about its viability due to the high risk and short operational life.
If anybody was thinking clearly about this they would either not build it (favourite) or build a new refinery in Chicago.