• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia

Trendingnow

1

Microsoft AI chief gives it 18 months—for all white-collar work to be automated by AI

2

Despite having a $165 million net worth, Scarlett Johansson says work-life balance doesn’t exist—and the first step to success is admitting that

3

The Bezos family just donated $100 million to help achieve one of Mayor Zohran Mamdani’s top campaign promises

1

Microsoft AI chief gives it 18 months—for all white-collar work to be automated by AI

2

Despite having a $165 million net worth, Scarlett Johansson says work-life balance doesn’t exist—and the first step to success is admitting that

3

The Bezos family just donated $100 million to help achieve one of Mayor Zohran Mamdani’s top campaign promises
biofuels

Former Trump Adviser Carl Icahn Subpoenaed Over Efforts to Halt Biofuels Program

By
Reuters
Reuters
Down Arrow Button Icon
By
Reuters
Reuters
Down Arrow Button Icon
November 8, 2017, 9:44 PM ET
Carl Icahn gives an interview on FOX Business Network's Neil Cavuto show in New York
Billionaire investor Carl Icahn gives an interview on FOX on Feb. 11, 2014. Brendan McDermid—Reuters

Billionaire investor Carl Icahn has been subpoenaed by the U.S. Justice Department over his efforts to overhaul the U.S. biofuels program during his time as an unpaid adviser to President Donald Trump, his company said in a securities filing.

Icahn‘s dual role as a presidential adviser and an investor with interests in multiple industries raised eyebrows earlier this year with Democratic lawmakers and government watchdogs.

The U.S. Attorney’s Office for the Southern District of New York subpoenaed Icahn and his firm Icahn Enterprises LP (IEP) for information on its activities around the U.S. Renewable Fuel Standard, Icahn Enterprises said in a filing with the Securities and Exchange Commission on Nov. 3.

Icahn is a majority owner in a refining company, CVR Energy Inc (CVI), directly affected by U.S. biofuels regulations.

“We are cooperating with the request and are providing information in response to the subpoena. The U.S. Attorney’s Office has not made any claims or allegations against us or Mr. Icahn,” the company said in the filing.

A spokeswoman for acting U.S. Attorney Joon Kim in Manhattan declined to comment. Icahn‘s attorney did not respond to requests for comment.

The U.S. Renewable Fuels Standard requires oil refiners to blend increasing volumes of ethanol and other biofuels into the nation’s fuel supplies, or purchase credits from those who do. It was introduced by former President George W. Bush more than a decade ago as a way to reduce U.S. energy imports, help U.S. farmers, and slash greenhouse gas emissions.

The regulation has helped corn growers, but it has been a burden for Icahn and other independent oil refiners who claim it costs them hundreds of millions of dollars per year.

As an adviser to Trump, Icahn had presented a proposal to the White House in February that the Renewable Fuel Standard be altered to lift responsibility for blending fuels off of refiners, and moved further down the supply chain to supply terminals.

After an uproar over the proposal, Icahn resigned his post as adviser in August. In his resignation letter, Icahn downplayed his role, saying: “I never had access to nonpublic information or profited from my position.”

The Environmental Protection Agency has said it does not currently believe shifting the blending responsibility off refiners is appropriate.

While Icahn was pushing for the change, his refining company CVR Energy built up a large short position in the obscure biofuel blending credit market, which was worth around $280 million at the end of June.

The changes Icahn promoted would have tanked prices for the credits, resulting in massive profits for CVR.

The company significantly reduced its short position in the past quarter, according to filings.

Renewable fuel credits are now trading at about 95 cents each, three times their lows hit this winter as Icahn lobbied for changes to the biofuel program.

Lawmakers including Democratic Senator Sheldon Whitehouse of Rhode Island had demanded information from the government officials on the nature of Icahn‘s role. Whitehouse on Wednesday said he welcomed the investigation.

“I hope this leads to answers that all Americans deserve,” he said in a statement.

Watchdog groups like Public Citizen and American Oversight also applauded the move, saying that Icahn‘s role presented ethical and legal concerns.

“It’s critical that prosecutors get to the bottom of Icahn‘s involvement in the administration and uncover why, and how, he was given so much access despite the obvious ethical concerns,” said Austin Evers, head of the watchdog group American Oversight.

About the Author
By Reuters
See full bioRight Arrow Button Icon

Latest in

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in

Trump’s IRS suit may end with a $1.7 billion compensation fund
PoliticsDonald Trump
Trump’s IRS suit may end with a $1.7 billion compensation fund
By Zoe Tillman, Chris Strohm, Hadriana Lowenkron and BloombergMay 16, 2026
2 hours ago
World’s largest aircraft carrier returns from 11-month deployment, longest since Vietnam, after supporting Iran war and Maduro raid
PoliticsMilitary
World’s largest aircraft carrier returns from 11-month deployment, longest since Vietnam, after supporting Iran war and Maduro raid
By The Associated PressMay 16, 2026
2 hours ago
Ray Dalio says China’s ascent ushers in era of ‘tribute system’
AsiaChina
Ray Dalio says China’s ascent ushers in era of ‘tribute system’
By David Westin, Edward Dufner and BloombergMay 16, 2026
2 hours ago
Oil markets could be a month away from the moment of truth. Brace for a ‘non-linear’ price spike and panic buying, analysts warn
EnergyOil
Oil markets could be a month away from the moment of truth. Brace for a ‘non-linear’ price spike and panic buying, analysts warn
By Jason MaMay 16, 2026
3 hours ago
SpaceX heads into a record-shattering IPO with the ‘deepest moat that exists today’ as investors vow to ‘never bet against Elon’
InnovationIPOs
SpaceX heads into a record-shattering IPO with the ‘deepest moat that exists today’ as investors vow to ‘never bet against Elon’
By Jason MaMay 16, 2026
5 hours ago
tarot
AICulture
We talked to 12 tarot card readers who are using AI. They split in 2 camps, with big implications for the technology
By Ziv Epstein, Farnaz Jahanbakhsh, Vana Goblot and The ConversationMay 16, 2026
7 hours ago

Most Popular

Microsoft AI chief gives it 18 months—for all white-collar work to be automated by AI
AI
Microsoft AI chief gives it 18 months—for all white-collar work to be automated by AI
By Jake AngeloMay 16, 2026
10 hours ago
Despite having a $165 million net worth, Scarlett Johansson says work-life balance doesn’t exist—and the first step to success is admitting that
Success
Despite having a $165 million net worth, Scarlett Johansson says work-life balance doesn’t exist—and the first step to success is admitting that
By Preston ForeMay 13, 2026
3 days ago
The Bezos family just donated $100 million to help achieve one of Mayor Zohran Mamdani’s top campaign promises
Politics
The Bezos family just donated $100 million to help achieve one of Mayor Zohran Mamdani’s top campaign promises
By Jake AngeloMay 12, 2026
4 days ago
Current price of oil as of May 15, 2026
Personal Finance
Current price of oil as of May 15, 2026
By Joseph HostetlerMay 15, 2026
1 day ago
Meet the 20-year-old CEO who launched a company in high school to solve Gen Z's entry-level job crisis
Future of Work
Meet the 20-year-old CEO who launched a company in high school to solve Gen Z's entry-level job crisis
By Jake AngeloMay 16, 2026
13 hours ago
‘You’re not a hero, you’re a liability’: Shark Tank’s Kevin O’Leary warns Gen Z founders to stop glorifying hustle culture
Future of Work
‘You’re not a hero, you’re a liability’: Shark Tank’s Kevin O’Leary warns Gen Z founders to stop glorifying hustle culture
By Jacqueline MunisMay 16, 2026
10 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.