Several independent U.S. oil producers are expected to sign production contracts with Venezuela’s state-run oil company in the coming days, according to three industry representatives familiar with the plans — a step forward for the Trump administration’s efforts to boost production in the beleaguered South American nation.

A signing ceremony involving several smaller U.S. producers and the Petróleos de Venezuela had been set for Tuesday evening in Houston, according to the people, who were granted anonymity because details of the event have not been made public. Venezuela’s oil minister is scheduled to attend, as is the head of exploration for PDVSA, one of the people said. The ceremony could be pushed back until Wednesday morning, another of the people added.

The White House, which did not immediately respond to a request for comment, is not expected to be formally involved with Tuesday’s ceremony, but it comes after top administration officials traveled to Caracas in late April to secure memorandums of understanding that laid the groundwork for formal production deals in the country that holds some of the world’s largest oil reserves.

It marks a sign of progress after the Trump administration’s effort to push new oil development in Venezuela, which began after the U.S. raid that captured former leader Nicolás Maduro in January, had slowed in recent months. Despite a boost from higher crude prices, negotiations have bogged down around key details like dispute resolution, while authorities in Caracas dealt with a devastating pair of June earthquakes that killed thousands.

Venezuela’s interim president Delcy Rodríguez last month unveiled new regulations offering more favorable fiscal terms to international oil companies.

The signings come after the Trump administration renewed pressure on Rodríguez to have PDVSA sign contracts with American companies, an industry source familiar with the negotiations. Those efforts included outreach from Secretary of State Marco Rubio to discuss how increased oil revenue could help the country after a devastating earthquake earlier this summer, this person said.

“There’s a renewed acknowledgement from Delcy that increased oil production is the pathway to rebuilding after the earthquakes and accomplishing what her government wants to do for the people who are suffering because of the earthquakes,” this person said.

David Goldwyn, head of the international energy consulting firm Goldwyn Global Strategies, said investment from independent oil producers and expanded production from existing fields are likely to be Venezuela’s “primary source of new oil growth for the next couple of years.”

“While the supermajors bide their time until they see how the politics sort out, and whether they can cherry pick the best assets, independents can derisk their projects in a short period of time,” Goldwyn said.

But those investments are only likely to add up to 300,000 barrels a day to the country’s oil production over the next year, far from the increase of millions of barrels the authorities in Caracas and Washington would like to see, Goldwyn said.

“Incremental production is all we will see until the framework improves, electricity is restored, and the political picture becomes clearer,” he said.

President Donald Trump turned up the heat on Exxon Mobil and Chevron over high gasoline prices on Monday, blasting his longtime industry allies for “making too much money” while Americans struggle with higher prices at the pump.

Oil majors have reported bumper quarterly earnings, buoyed by higher crude prices caused by the supply disruptions in the Middle East and the soaring profit margins for refineries. That has put targets on the backs of companies as the Trump administration faces mounting pressure to show it is working to bring down high gas prices ahead of the midterm elections.

“Based on a shortage, they’re making too much money,” Trump told reporters in the Oval Office Monday. “I don’t like it, and I should be the last one to say because I’m a big free enterprise guy — nobody bigger.”

Trump specifically called out the two biggest U.S. oil producers by name after both reported strong earnings on Friday.

“Chevron, too much money. Exxon Mobil, too much, too much money,” Trump said. “They ought to give some of that back to the public, and they better cut the retail price, the consumer price.”

The average U.S. retail gasoline price has hovered near $4.10 a gallon for the past week, up from less than $3 before the United States and Israel launched their attacks against Iran in February.

In late June, Trump ordered the Justice Department to investigate big oil companies for not bringing gasoline prices down fast enough as crude oil prices weakened. Pump prices are generally set by the retailers, often sole proprietors, who own gas stations, rather than major oil producers.

Chevron declined to comment on Trump’s remarks, and Exxon did not immediately respond to a request for comment. The two companies’ chief executives warned in earnings calls Friday that a shortage of refining capacity could keep gasoline prices high through the fall.

Andrea Woods, a spokesperson for the American Petroleum Institute, which represents major oil producers, said in a statement that higher prices are “driven by global supply, demand and continued uncertainty around the Strait of Hormuz and other critical shipping lanes—not by any one company.”

“Our industry shares the goal of delivering affordable, reliable energy for consumers,” she said.

Trump also criticized Chevron CEO Mike Wirth in a social media post Monday morning for failing to credit the administration’s policies for the company’s record quarter.

“The only thing he conveniently forgot to mention is that, without the genius, foresight, strength, and stability, of the TRUMP Administration, the Oil Industry, and our Country itself, would be DEAD!” Trump wrote, adding that all oil companies must “get your consumer (retail!) Oil Prices DOWN, NOW!”