API joined the Teamsters Union in a teleconference to call for swift action by the U.S. State Department to approve the 2,000-mile Keystone XL pipeline that would transport crude oil from Canada's oil stands to the United States.
The project has been delayed for nearly three years as officials examine the pipeline's potential environmental impacts.
Environmentalists argue oilsands production results in higher greenhouse-gas emissions than traditional crude oil.
An environmental group called Tar Sands Action has been holding rallies in front of the White House to protest against the oil sands project, which the group calls "the largest carbon bomb in North America."
On July 26, the House of Representatives voted 279-147 in favor of a bill that would force the State Department to decide on a permit for the pipeline by Nov. 1.
The majority of the jobs created will be union jobs, says James Kimball, chief economist with the International Brotherhood of Teamsters.
The project would increase Teamsters pipeline employment in the United States by approximately 40 percent, Kimball said.
Another quarter of a million jobs could be created to support pipeline activities, according to Kimball.