Yes, the pipeline that will deliver Canadian oil to China without a single penny of taxes being paid to the US since technically the oil will never have been considered as being in the United States, and even the profit earned refining the oil will be exempt from federal taxes because the refining will take place in a 'free-trade zone' set-up in Texas just for these sorts of deals. Any oil coming into the 'free-trade zone' from a foreign country, in this case Canada, that is refined and then shipped to another foreign destination, say China, is considered to have never been in the US for tax purposes. And in fact, this could increase the price of gasoline at the pump in the US since a significant amount of the oil that is currently coming into the US from Canada and refined in mid-western refineries, on which taxes are paid, this oil will now be diverted to the XL Pipeline and therefore will never make it to American consumers. And when the first leak occurs along the pipelines route, you can bet that neither Canada nor China will be footing the bill for the clean-up, that will be you and I.
And after all is said and done, something less than a 100 permanent jobs will have been created.