The politicians point to a recent Texas merger. Photo via Getty Images

Senate Majority Leader Chuck Schumer and 22 other Democratic senators are calling on the Department of Justice to “use every tool” at its disposal to prevent and prosecute alleged collusion and price-fixing in the oil industry.

In a letter Thursday to Attorney General Merrick Garland and other officials, the Democrats said a recent Federal Trade Commission investigation into a high-profile merger uncovered evidence of price-fixing by oil executives that led to higher energy costs for American families and businesses.

The FTC said earlier this month that Scott Sheffield, the former CEO of Texas-based Pioneer Natural Resources, colluded with OPEC and OPEC+ to potentially raise crude oil prices. Sheffield retired from the company in 2016 but returned as CEO in 2019. After retiring again in 2023, he continued to serve on its board.

The FTC cleared Houston-based ExxonMobil's $60 billion deal to buy Pioneer on May 2 but barred Sheffield from joining the new company’s board of directors. Pioneer, which is based in Dallas, said it disagreed with the allegations but would not impede closing of the merger, which was announced in 2023.

In a report, the FTC said collusion by Pioneer and others may have cost the average American household up to $500 per car in increased annual fuel costs, an amount Democrats called “an unwelcome tax that is particularly burdensome for lower-income families.'' Meanwhile, Exxon Mobil and other major oil companies collectively earned more than $300 billion in profits over the last two years, "a surge that many market experts believe cannot be explained away by increased production costs from the (coronavirus) pandemic or inflation,” Democrats said.

The letter calls for the Justice Department to launch an industry-wide investigation into possible violations of the Sherman Antitrust Act. It outlined how “Big Oil’s alleged collusion with OPEC is a national security concern that aids countries looking to undermine the U.S.," including Russia and Iran.

“Corporate malfeasance must be confronted, or it will proliferate," the letter said. “These alleged offenses do not simply enrich corporations; hardworking Americans end up paying the price through higher costs for gas, fuel and related consumer products. The DOJ must protect consumers, small businesses and the public from petroleum-market collusion."

The letter by Senate Democrats was the latest in a series of partisan actions targeting the oil industry.

Separately, Democratic Sen. Sheldon Whitehouse of Rhode Island and Democratic Rep. Jamie Raskin of Maryland have formally asked the Justice Department to investigate whether Exxon, Chevron and other oil companies misled the public over decades about the climate effects of burning fossil fuels. Whitehouse and Raskin led a multiyear investigation that uncovered what they described as “damning new documents that exposed the fossil fuel industry’s ongoing efforts to deceive the public and block climate action.”

Republicans, meanwhile, have attacked President Joe Biden's energy policies, including a freeze on liquefied natural gas exports, restrictions on new oil and gas leasing on a petroleum reserve in Alaska and a decision to charge companies higher rates to drill for oil and natural gas on federal lands.

Sen. John Barrasso, the top Republican on the Senate Energy Committee, said the Democratic president was “doing all he can to make it economically impossible to produce energy on federal lands.''

The letter released Thursday was signed by 23 Democrats, including Schumer, Whitehouse, Senate Commerce Committee Chairwoman Maria Cantwell of Washington state and Senate Judiciary Committee Chairman Dick Durbin of Illinois.

ExxonMobil got initial approval of its $60 billion deal to buy Houston-based Pioneer Natural Resources. Photo via ExxonMobil.com

ExxonMobil's $60B acquisition gets FTC clearance — with one condition

M&A moves

ExxonMobil's $60 billion deal to buy Pioneer Natural Resources on Thursday received clearance from the Federal Trade Commission, but the former CEO of Pioneer was barred from joining the new company's board of directors.

The FTC said Thursday that Scott Sheffield, who founded Pioneer in 1997, colluded with OPEC and OPEC+ to potentially raise crude oil prices. Sheffield retired from the company in 2016, but he returned as president and CEO in 2019, served as CEO from 2021 to 2023, and continues to serve on the board. Since Jan. 1, he has served as special adviser to the company’s chief executive.

“Through public statements, text messages, in-person meetings, WhatsApp conversations and other communications while at Pioneer, Sheffield sought to align oil production across the Permian Basin in West Texas and New Mexico with OPEC+,” according to the FTC. It proposed a consent order that Exxon won't appoint any Pioneer employee, with a few exceptions, to its board.

Dallas-based Pioneer said in a statement it disagreed with the allegations but would not impede closing of the merger, which was announced in October 2023.

“Sheffield and Pioneer believe that the FTC’s complaint reflects a fundamental misunderstanding of the U.S. and global oil markets and misreads the nature and intent of Mr. Sheffield’s actions,” the company said.

Senate Majority Leader Chuck Schumer, D-N.Y., said it was “disappointing that FTC is making the same mistake they made 25 years ago when I warned about the Exxon and Mobil merger in 1999.”

Schumer and 22 other Democratic senators had urged the FTC to investigate the deal and a separate merger between Chevron and Hess, saying they could lead to higher prices, hurt competition and force families to pay more at the pump.

The deal with Pioneer vastly expands Exxon’s presence in the Permian Basin, a huge oilfield that straddles the border between Texas and New Mexico. Pioneer’s more than 850,000 net acres in the Midland Basin will be combined with Exxon’s 570,000 net acres in the Delaware and Midland Basin, nearly contiguous fields that will allow the combined company to trim costs.

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Investors close partial acquisition of Phillips 66 subsidiary with growing EV network

M&A activity

Energy Equation Partners, a London-based investment firm focused on clean energy companies, and New York-based Stonepeak have completed the acquisition of a 65 percent interest in JET Tankstellen Deutschland GmbH, a subsidiary of Houston oil and gas giant Phillips 66.

JET is one of the largest and most popular fuel retailers in Germany and Austria with a rapidly growing EV charging network, according to a news release. It also operates approximately 970 service stations, convenience stores and car washes.

“We are delighted to complete this acquisition and to partner with Stonepeak and Phillips 66 to take JET to the next level,” Javed Ahmed, managing partner of Energy Equation Partners, said in a news release. “This investment reflects EEP’s commitment to investing in established players in the energy sector who have the potential to make a meaningful impact on the energy transition, and we are excited to work alongside the entire JET team, including its dedicated service station operators, to realize this vision.”

The deal values JET at approximately $2.8 billion. Phillips 66 will retain a 35 percent non-operated interest in JET and received about $1.6 billion in pre-tax proceeds.

“Under Phillips 66’s ownership, JET has grown into one of the largest fuel retailers in Germany and Austria," Anthony Borreca, senior managing director and co-head of energy at Stonepeak, added in a news release. "We are excited to join forces with them, as well as Javed and the EEP team, who have long-standing experience investing in and operating retail fuel distribution and logistics globally, to support the next phase of JET’s growth.”

6 must-attend Houston energy events in December 2025

Event Guide

Editor's note: The year is coming to a close, but there are still exciting energy events to attend in Houston this month. Mark your calendar now for pitch days, seminars, networking, and Reuters Energy LIVE 2025.

Dec. 4 — Resiliency & Adaptation Sector Pitch Day

Join innovators, industry leaders, investors, and policymakers as they explore breakthrough climate and energy technologies at Greentown Labs' latest installment of its Sector Pitch Day series, focused on resiliency and adaptation. Hear from Adrian Trömel, Chief Innovation Officer at Rice University; Eric Willman, Executive Director of the Rice WaTER Institute; pitches from 10 Greentown startups; and more.

This event is Thursday, Dec. 4, from 1-3:30 p.m. at the Ion. The Ion Holiday Block Party follows. Register here.

Dec. 8 — Pumps & Pipes Annual Event 2025

The annual gathering brings together cross-industry leaders in aerospace, energy and medicine for engaging discussions and networking opportunities. Connor Grennan, Chief AI Architect at the NYU Stern School of Business, will present this year's keynote address, "Practical Strategies to Increase Productivity." Other sessions will feature leaders from Cena Research Institute, NASA Ames Research Center, ExxonMobil, Southwest Airlines, and more.

This event is Monday, Dec. 8, from 8 a.m.-5 p.m., at TMC Helix Park. Register here.

Dec. 9 — Energy in Action Seminar

The Energy Transition Institute hosts a monthly Energy in Action Seminar focused on the digitization of the global energy transition. This month's topic is "Exploring AI’s Impact on the Fuels & Petrochemicals Industry," featuring speaker Leo Chiang, Senior Director of Corporate Technology at The Lubrizol Corporation. The event includes a one-hour talk followed by an hour of networking.

This event is Dec. 9 from 4-6 pm at the University of Houston.

Dec. 9-10 — Energy LIVE 2025

Energy LIVE is Reuters Events' flagship conference and expo that brings the full energy ecosystem together under one roof in Houston to solve the industry's most urgent commercial and operational challenges. The event will feature 3,000-plus senior executives across three strategic stages, a showcase of 75-plus exhibitors, and six strategic content pillars.

This event is Dec. 9-10 at NRG Park. Register here.

Dec. 11-12 — Fundamentals of The Texas ERCOT Electric Power Market

This two-day seminar provides a comprehensive overview of the structure, function, and current status of the Texas ERCOT ISO. Attendees will gain an understanding of the dynamic Texas wholesale and retail competitive markets, and learn how these markets interface with ERCOT ISO energy auctions and ISO operations. This two-day event will also address the rapidly expanding new market opportunities in Texas renewables, distributed generation, demand response, and demand side management, and more.

This event is Dec. 11-12 at the Courtyard Marriott Houston near the Galleria. Register here.

Dec. 9-11 — AST Conference & Trade Show

The 18th Annual National Aboveground Storage Tank (AST) Conference & Trade Show is the premier event for professionals in storage tank and terminal operations. Join industry leaders and experts for a three-day conference providing regulatory updates, technical insights, hands-on learning, and networking opportunities.

This event is Dec. 9-12 at The Woodlands Waterway Marriott. Register here.

Houston scientists develop 'recharge-to-recycle' reactor for lithium-ion batteries

reduce, recharge, recycle

Engineers at Rice University have developed a cleaner, innovative process to turn end-of-life lithium-ion battery waste into new lithium feedstock.

The findings, recently published in the journal Joule, demonstrate how the team’s new “recharge-to-recycle” reactor recharges the battery’s waste cathode materials to coax out lithium ions into water. The team was then able to form high-purity lithium hydroxide, which was clean enough to feed directly back into battery manufacturing.

The study has major implications for the electric vehicle sector, which significantly contributes to the waste stream from end-of-life battery packs. Additionally, lithium tends to be expensive to mine and refine, and current recycling methods are energy- and chemical-intensive.

“Directly producing high-purity lithium hydroxide shortens the path back into new batteries,” Haotian Wang, associate professor of chemical and biomolecular engineering, co-corresponding author of the study and co-founder of Solidec, said in a news release. “That means fewer processing steps, lower waste and a more resilient supply chain.”

Sibani Lisa Biswal, chair of Rice’s Department of Chemical and Biomolecular Engineering and the William M. McCardell Professor in Chemical Engineering, also served as co-corresponding author on the study.

“We asked a basic question: If charging a battery pulls lithium out of a cathode, why not use that same reaction to recycle?” Biswal added in the release. “By pairing that chemistry with a compact electrochemical reactor, we can separate lithium cleanly and produce the exact salt manufacturers want.”

The new process also showed scalability, according to Rice. The engineers scaled the device to 20 square centimeters, then ran a 1,000-hour stability test and processed 57 grams of industrial black mass supplied by industry partner Houston-based TotalEnergies. The results produced lithium hydroxide that was more than 99 percent pure. It also maintained an average lithium recovery rate of nearly 90 percent over the 1,000-hour test, showing its durability. The process also worked across multiple battery chemistries, including lithium iron phosphate, lithium manganese oxide and nickel-manganese-cobalt variants.

Looking ahead, the team plans to scale the process and consider ways it can sustain high efficiency for greater lithium hydroxide concentrations.

“We’ve made lithium extraction cleaner and simpler,” Biswal added in the release. “Now we see the next bottleneck clearly. Tackle concentration, and you unlock even better sustainability.