WASHINGTON, DC - JUNE 25: U.S. President Barack Obama wipes sweat off his face as he unveils his plan on climate change June 25, 2013 at Georgetown University in Washington, DC. President Obama laid out his plan to diminish carbon pollution and prepare the country for the impacts of climate change. (Photo by Alex Wong/Getty Images)

The Obama administration will make its final decision on the Keystone XL pipeline by early summer, the Wall Street Journal reports.

The proposed pipeline, which would run from the Canadian oil sands to refineries in Texas, has been under consideration for years, but a final decision on it has been delayed several times due to requests for additional evaluations of the project's environmental impact.

The State Department's inspector general is looking into allegations that there was a conflict of interest with the company that prepared the project's latest draft environmental analysis. That report is expected to be released by the end of January. The State Department has the authority to approve the project because it crosses an international border.

The Journal reports that sources familiar with the decision said that the final environmental impact analysis is expected to be released next month. After that, the State Department will make a decision about whether the pipeline is in the national interest, and other agencies will have 90 days to comment on the verdict. That would put President Barack Obama in a position to make a final decision by May or June.

Click over to the Wall Street Journal to read more about what insiders expect the final analysis to say.

The State Department and the White House have not offered an official timeline for the decision.