The controversial Keystone XL Pipeline is still in limbo. TransCanada, the company building the pipeline, announced in a recent Securities and Exchange Commission filing that it did not expect to receive presidential approval for the northern leg of the pipeline in 2013. The company has nearly completed construction of the southern leg of the pipeline, which will run from Cushing, Oklahoma, to refineries along the Texas Gulf Coast. However, construction on the northern leg of the pipeline, which would carry crude oil from Hardisty, Alberta, to Steele City, Nebraska, has yet to begin. The State Department and the Obama administration have previously rejected approval of the pipeline, saying the pipeline route required further study and that its then-proposed route could pose environmental problems. Now a lawsuit pending in Lincoln, Nebraska, could force TransCanada to postpone pipeline construction even further.