Senate Democrats opened an investigation on Thursday into former President Donald J. Trump’s meeting with oil and gas executives last month to determine whether Mr. Trump offered a “policies-for-money transaction” when he asked for $1 billion for his 2024 campaign so he could retake the White House and delete President Biden’s climate regulations.
The investigation is the second congressional inquiry into the April 11 fund-raising dinner at Mar-a-Lago, Mr. Trump’s private club in Florida. Over a chopped steak dinner, Mr. Trump told about 20 oil and gas executives that they would save far more than $1 billion in avoided taxes and legal fees after he repealed environmental regulations, according to several people who were present and who requested anonymity to discuss a private event.
The former president has vowed to “drill, baby, drill” if he wins in November. He has made no secret of his plans to end Mr. Biden’s policies that support wind and solar energy as well as electric vehicles.
On Wednesday Mr. Trump headlined a fund-raiser for MAGA Inc., a super PAC, that was hosted by three oil executives at a five-star hotel in Houston. One host was Kelcy Warren, a billionaire who owns a pipeline empire with an ambitious international expansion plan that depends on new export terminals. Mr. Biden paused permits for new terminals in January. Another was Harold G. Hamm, one of the pioneers of the shale oil boom that turned the United States into the world’s largest crude exporter. The third, Vicki Hollub, leads Occidental Petroleum, a Houston-based oil company.
In letters sent Thursday morning to top executives of eight oil companies and a trade group, the chairmen of two Senate committees, Senator Sheldon Whitehouse of Rhode Island and Senator Ron Wyden of Oregon, sought details of the executives’ participation in the meeting and accused them and Mr. Trump of engaging in a quid pro quo.
“Time and time again, both Mr. Trump and the U.S. oil and gas industry have proved they are willing to sell out Americans to pad their own pockets,” the senators wrote to companies.
They accused the industry and the Trump campaign of “conferring on how to trade campaign cash for policy changes.”
The companies could not immediately be reached for comment.
At the Mar-a-Lago dinner, Mr. Trump promised to immediately end the Biden administration’s pause on permits for new facilities that export liquefied natural gas, according to people who attended the meeting. That issue has galvanized the oil and gas industry against Mr. Biden, according to industry lobbyists.
Mr. Trump also criticized Mr. Biden’s restrictions on drilling on federal lands and in federal waters and promised to “bring back” the energy industry. (In fact, the oil and gas production have set records under the Biden administration and the United States is the world’s leading exporter of liquefied natural gas. Even with the pause on permits for new export terminals, the United States is still on track to nearly double its export capacity by 2027 because of projects already permitted and under construction.)
Lawmakers wrote to the chief executives of Cheniere Energy Inc., Chesapeake Energy, Chevron, Continental Resources, EQT Corporation, Exxon Mobil, Occidental Petroleum and Venture Global, as well as the president of the American Petroleum Institute, the oil industry’s main lobbying group.
Mr. Whitehouse, who leads the Senate Committee on the Budget, and Mr. Wyden, head of the Senate Committee on Finance, asked for copies of any draft executive orders, regulatory proposals or other policy-related documents that the companies may have created “for the purpose of potential use in a possible Trump administration.”
They are also seeking details of all campaign donations made by the companies, or any affiliated political action committees, to support Mr. Trump.
The joint inquiry is the second congressional examination of the April 11 fund-raising dinner. Representative Jamie Raskin of Maryland, the top Democrat on the House Oversight Committee, is seeking similar information from the companies.
Such letters typically are the first step before subpoenas can be issued. Because Democrats do not control the House, Mr. Raskin would not have the power to subpoena companies. In the Senate, where Democrats have the majority, Mr. Whitehouse or Mr. Wyden would be able to take such a step if they felt information was not forthcoming.
The American Petroleum Institute said in a statement that Mr. Raskin’s assertion of a quid pro quo was “patently false and an attempt to distract from a needed debate about America’s future — one that requires more energy, including more oil and natural gas.”