TransCanada, the Calgary, Alberta-based energy giant behind the controversial Keystone XL pipeline, has retained Washington, D.C.-based lobbying and public affairs shop CGCN Group for representation on Capitol Hill regarding energy-related matters.

According to lobbying registration documents filed in February, TransCanada has hired CGCN for help on issues pertaining to “natural gas policies in the United States and between the U.S. and Canada,” “any energy legislation impacting cross-border and domestic transmission of natural gas,” and “policy issues and executive branch approval of the Keystone pipeline.”

Keystone

TransCanada, which owns and manages a network of 2,150 miles of oil pipeline and more than 35,000 miles of gas pipeline across North America, is the owner of the Keystone Pipeline System that runs from Alberta to U.S. refineries in Illinois and Texas. Its proposed Keystone XL extension would transport approximately 83,000 barrels of tar sands each day from a preexisting TransCanada pipeline system in Alberta to Nebraska, where it would then continue via another pipeline network to refineries in the Gulf of Mexico.

The proposed project became the subject of fierce protest among environmental groups and activists. After more than a half-dozen years of review, President Obama in late 2015 denied the permits needed for construction of the XL pipeline, claiming the project wouldn’t increase energy security, lower gas prices or “make a meaningful, long-term contribution to the economy.”

In January, however, President Donald Trump signed an executive order re-authorizing the Keystone XL pipeline, allowing TransCanada to resubmit its application, thus effectively reviving the project. Trump’s January executive action also revived the controversial Dakota Access pipeline, whose approval Obama had similarly blocked late last year.

TransCanada last year spent $1.1 million in total lobbying expenditures, following $1.38 million in lobbying spends the year prior. Infamously, TransCanada had previously tapped number-one independent PR giant Edelman to develop a communications program involving its Energy East Pipeline, which would have transported oil from western Canada and the North Western U.S. to refineries in Quebec. That relationship fell apart in late 2014 after environmental group Greenpeace obtained a cache of documents detailing Edelman’s strategy for the project and leaked it to Canadian media outlets.

CGCN, formerly known as Clark Geduldig Cranford & Nielsen, is the right-leaning lobbying firm that has counted Ally Bank, GM, Ernst & Young, Koch Industries, Deloitte and the U.S. Chamber of Commerce as clients. Founder Steve Clark was previously communications director for the National Republican Congressional Committee.

The account will be led by Jay Cranford, who was previously a policy advisor to House Speaker John Boehner and a legislative assistant and communications director to Rep. Jim Gibbons (R-NV).