A U.S. House panel on April 20 passed a bill to open the OPEC oil production group and countries working with it to lawsuits for collusion in boosting petroleum prices, but it was uncertain whether the full chamber would consider the legislation.

The so-called NOPEC bill, introduced by Representative Steve Chabot, a Republican, passed on a voice vote in the House Judiciary Committee. It would allow the U.S. Justice Department to bring anti-trust lawsuits against oil-producing countries in OPEC.

Similar bills to pressure OPEC when oil prices are on the rise have appeared in Congress without success for more than 20 years.

“It’s high time that we do more to fight ... production controls that continue to keep the price of crude oil and gasoline arbitrarily high in the United States,” Chabot told the committee before the vote.

Oil prices have risen about 33% this year and on April 20 hit the highest level in a month, above $68/bbl for Brent international crude. But that was well below the level of more than $100 a barrel in 2008 when a similar bill passed in the full House.

The rise came despite a deal OPEC+, a group consisting of OPEC members, Russia and their allies, struck this month to gradually ease oil output cuts from May, as economies recover from the global pandemic. The deal came after U.S. Energy Secretary Jennifer Granholm called on top OPEC producer Saudi Arabia to keep energy affordable for consumers.

The OPEC+ group had implemented the deep production cuts after the pandemic led to an oil price collapse last year.

A similar bill to pressure OPEC was reintroduced in the Senate last month, by Republican Senator Chuck Grassley, a supporter of ethanol, a motor fuel additive made from corn, and Democrat Amy Klobuchar. To become law, a bill would have to pass both chambers in Congress and be signed by President Joe Biden.

In 2018, Qatar, one of OPEC’s core Gulf members, quit the group after nearly six decades, partly because of the risk that potential passage of NOPEC could harm its U.S. expansion plans.