WASHINGTON — The Obama administration on Monday approved a terminal on the Oregon coast to export U.S. natural gas abroad, as pressure mounts on the president to use the nation’s energy bounty as a foreign policy weapon.

Some members of Congress claim natural gas exports would weaken Russia. The argument has holes, but the Ukrainian crisis is nevertheless increasing the political momentum for exports.

The Jordan Cove facility in Coos Bay, Ore., is the seventh terminal so far to receive conditional approval from the Department of Energy to export liquefied natural gas. Sen. Mary Landrieu, D-La., said Monday that approval of the Oregon project helps “solidify the U.S. as an energy superpower.”

“A quick and efficient approval process to responsibly export natural gas from our shores will also reduce the stronghold that countries, like Russia, currently exercise over their neighbors,” said Landrieu, the new chairwoman of the Senate Energy and Natural Resources Committee.

Europe relies on Russia for nearly a third of its natural gas, a fact that Russian President Vladimir Putin uses to his political advantage. But it is questionable how much increased American exports could hurt Putin, since most are destined for Asia, not Europe, and are years from reality.

The global consulting firm IHS Energy said in a new report that U.S. exports of liquefied natural gas, known as LNG, “can have no real” impact on the Ukrainian crisis, a conclusion that echoes other analysts.

“Much attention has been focused in recent weeks on the potential for U.S. exports of LNG to help Europe offset its dependence on Russian gas,” the report said. “Although the United States is currently on track to become one of the world’s three major LNG exporters by 2020-22, IHS Energy expects the ultimate impact on European gas supply to be limited.”

Most members of Congress are embracing natural gas exports, saying they could create American jobs as well as further geopolitical aims. But Sen. Ed Markey, D-Mass., expressed alarm at the developments, saying he’s worried energy costs for Americans could go up.

“We have crossed a line into an era when we could be massively exporting America’s natural gas, sending the jobs and consumer benefits abroad along with the fuel,” Markey said.