Intelligent Design or Natural Selection you decide on Keystone XL (New & Improved)

TransCanada Corp said on Monday it will build the southern leg of its $7 billion Keystone XL oil pipeline first.

Building the portion of the contentious pipeline that would run to Texas refineries from the Cushing, Oklahoma, storage hub before the northern section would help remove a pinch-point that has led to deep price discounts for U.S. and Canadian crude and forced refiners to rely more heavily on imports.

TransCanada said it wants the $2.3 billion southern leg in service by mid- to late 2013. It said construction would create 4,000 U.S. jobs.

The company also wrote to the U.S. State Department on Monday detailing plans to refile an application shortly for the remainder of line running to Steele City, Nebraska, from the Canada-U.S. border.