Rice Alliance, Greentown name most promising startups and more pitch competition winners

winner winners

Here's who won at two of Houston Energy and Climate Week's signature pitch competitions. Photo via greentown.org

Approximately 100 startups from around the world pitched their breakthrough technologies and businesses during Houston Energy and Climate Week, with a select few taking home top prizes and bragging rights.

Each year, investors at the Rice Alliance Energy Technology Venture Forum name the 10 most-promising startups. Greentown's Climatetech Summit also culminates in a pitch event, where member companies can earn cash prizes.

Here's who won at two of the week's anchor events and competitions.

Rice Alliance Energy Tech Venture Forum

The 23nd annual event was held Thursday, Sept. 17, at Rice University’s Jones Graduate School of Business. The most-promising companies were selected by industry experts and participating investors attending the event.

The 10 most-promising companies included:

Australia-based Aquafortus, which has developed a non-thermal liquid to liquid desalination technology for resource recovery from wastewater brine
Houston-based Focis AI, which converts industrial laser scans into a queryable digital twin of refineries and plants
Houston-based ironlattice, a semiconductor manufacturing company
Houston-based Licube, which has developed technology to produce ultra-high-purity lithium compounds for the fusion energy, pharmaceuticals, semiconductors and high-performance solid-state battery sectors
Houston-based Mars Materials, a clean chemical manufacturing business that is working to convert captured carbon into resources, such as carbon fiber and wastewater treatment chemicals
Dallas-based MCatalysis, which has developed a suite of proprietary microwave-driven catalysts to produce high-quality, ready-to-use fuels compatible with existing infrastructure
Oslo, Norway-based OTee, an automation machinery manufacturer
Houston-based Pike Robotics, which deploys its Wall-Eye robot to inspect hazardous tanks without taking assets offline
New Mexico-based Spiritus, a direct-air-capture (DAC) technology company
San Francisco-based UptimeAI Inc., which develops AI reasoning agents for industrial operations teams

Stellai won the People's Choice Award. The Norwegian company develops AI products for the waste management industry.

The energy technology ventures selected to participate in the forum were named earlier this year. See the full list here, and read about last year's winners here.

Greentown Lab's Climatetech Summit

The annual summit was held Wednesday, Sept. 16, featured a number of Houston startups in its pitch competition and lighting pitch round. Judges included Dave Dreessen,, Jon Greene, Naval Preet Singh, Philip Llewellyn, Erin Madro, Justin Yeung, Jay Kim, Rawand Rasheed and Moji Karimi.

Pitch winners included:

First place: Elementium Materials' CEO Matthew Dawson, winning a $10,000 cash prize sponsored by TotalEnergies plus another $10,000 in legal services sponsored by Foley Hoag. The company develops advanced battery electrolytes. It is a Greentown Boston member; though Dawson is based in Houston.
Second place: Houston-based Solidec CEO and co-founder Ryan DuChanois, winning $5,000 in legal services sponsored by Foley Hoag. The company electrolyzes air, water and electricity into onsite hydrogen peroxide.

Lightening pitch winners included:

First place: Montana-based MagDrive Technologies, winning a $1,000 cash prize sponsored by Energy Transition Ventures. The company develops magnetically actuated, zero-emission valve systems that eliminate fugitive emissions and improve reliability.
Second place: Houston-based HEXASpec, winning a $500 cash prize sponsored by Foley Hoag. The company has created a new material to improve heat management for the semiconductor industry.

Read Greentown's recap of the summit here.

Houston Energy and Climate Week announced that the 2027 event will move to the spring, held April 4-10.

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The CleanTech Breakthrough Awards honor “the visionaries and leaders accelerating the transition to a cleaner, more sustainable future.” Photo via quaise.com

8 Houston companies earn CleanTech Breakthrough Awards

winner, winners

Eight cleantech companies with Houston headquarters were recognized in this year’s CleanTech Breakthrough Awards program.

CleanTech Breakthrough, part of market intelligence platform Tech Breakthrough, honors innovative and influential energy, climate, and cleantech companies, products and services.

This year’s winners from Houston are:

CleanTech Analytics Company of the Year: Amperon, a provider of AI-powered energy forecasting software
Overall Hydrogen Solution of the Year: Eclipse Energy, which converts maxed-out oilfields into low-cost sources of hydrogen
Energy Production Company of the Year: Fervo Energy, a provider of geothermal power
Production Solution of the Year: Quaise Energy, a developer of a drilling system for converting traditional power stations into geothermal energy plants
Green Materials Solution of the Year: Solidec, which uses air, water, and electricity to produce chemicals
Hydrogen Production Solution of the Year: VEMA Hydrogen, a producer of renewable hydrogen
CleanTech Analytics Innovation Award: Finland-based Wärtsilä, a provider of advanced energy storage systems and services, which maintains its U.S. headquarters in Houston
Energy Production Platform of the Year: France-based energy giant TotalEnergies, which maintains its U.S. headquarters in Houston

Other Texas companies made the list, including Austin-headquartered Base Power, founded by Justin Lopas and Zach Dell. Zach Dell is the son of Austin billionaire and Houston native Michael Dell, chairman and CEO of Dell Technologies. The company recently started servicing Houston and established an office in Katy.

CleanTech Breakthrough says its annual awards program honors “the visionaries and leaders accelerating the transition to a cleaner, more sustainable future.”

“In a world increasingly focused on sustainability and environmental responsibility, innovation in clean technology has never been more critical,” said Bryan Vaughn, managing director of CleanTech Breakthrough. “This year’s winners represent the very best in ingenuity and execution, delivering solutions that not only reduce environmental impact but also drive efficiency, scalability and real-world results.”

See the full list of the 2026 winners here.

Houston-based Flathead Forge Fund 1 has participated in Solidec's pre-seed funding round. Photo courtesy Greentown Labs

Solidec secures pre-seed funding from Houston VC firm

fresh funding

Houston-based Flathead Forge Fund 1 has invested in Houston startup Solidec, which specializes in modular onsite chemical manufacturing.

The investment was part of Solidec’s recent round of more than $2 million in pre-seed funding. The amount of Flathead Forge’s investment wasn’t disclosed.

“Flathead Forge brings exactly the kind of domain-specific capital and operational network that a company at our stage needs. Their focus on water and critical minerals makes this a genuinely strategic relationship,” Ryan DuChanois, co-founder and CEO of Solidec, said in a news release.

Other investors in the round included New Climate Ventures, Collaborative Fund, Echo River Capital, Ecosphere Ventures, Plug and Play Ventures, Safar Partners and Semilla Climate Capital.

Solidec produces industrial chemicals, including hydrogen peroxide, formic acid and acetic acid, using only air, water and electricity. Its modular reactors eliminate the need for energy-intensive production and long-haul distribution.

“Solidec’s platform cuts cost, emissions, and supply-chain fragility at the source,” Douglas Lee, managing director of Flathead Forge, added in the statement.

DuChanois said in an email that the company plans to use the funding to "scale (its) modular chemical manufacturing platform."

Solidec recently announced a pilot project with Lynas Rare Earths, the world’s only commercial producer of separated light and heavy rare earth oxides outside China, for production of hydrogen peroxide for a Lynas facility in Australia.

Solidec, a member of Greentown Labs Houston, spun out of associate professor Haotian Wang’s lab at Rice University in 2024. Wang focuses on developing new materials and technology for energy and environmental uses, such as energy storage and green synthesis.

U.S. Secretary of the Interior Doug Burgum and U.S. Secretary of Energy Chris Wright will return to CERAWeek this month, along with dozens of energy executives and innovators. Photos courtesy CERAWeek.

CERAWeek 2026 to bring energy leaders to Houston to discuss tech and geopolitics

where to be

CERAWeek returns this month, March 23-27, and will once again bring leading energy executives and government officials to Houston.

The 44th annual event will again host U.S. Secretary of Energy Chris Wright and U.S. Secretary of the Interior Doug Burgum.

Wright will participate in a plenary session focused on energy policy with Daniel Yergin, conference chair and vice chairman of S&P Global, on March 23. The following day, he will be featured in the Celebrating 10 Years of U.S. LNG reception with Jack Fusso, president and CEO, of Cheniere Energy. Both events are part of the Executive Conference track.

Burgum will participate in a leadership dialogue plenary session with Yergin on March 25. It is also part of the Executive Conference track. Burgum is also chairman of the National Energy Dominance Council, established by President Trump in 2025.

Top energy executives, many of whom are based in Houston, will also be featured prominently at the week-long event. Other speakers include:

Bill Blevins, director of grid coordination for the Electric Reliability Council of Texas (ERCOT)
Trevor Best, CEO of Syzygy Plasmonics
Marie Contour Carrere, executive director of the Rice Sustainability Institute
Ryan DuChanois, co-founder and CEO of Solidec
Reginald DesRoches, president of Rice University
Georgina Campbell Flatter, CEO of Greentown Labs
Jim Fitterling, chair and CEO of Dow Inc.
Vicki Hollub, CEO of Occidental Petroleum Corp.
Renu Katon, chancellor and president of the University of Houston
Ryan Lance, chairman and CEO of ConocoPhillips
Olivier Le Peuch, CEO of SLB
Patrick Pouyanné, chairman and CEO of TotalEnergies SE
Adrian Tromel, chief innovation officer and interim VP for Innovation at Rice University
Bobby Tudor, founder and CEO of Artemis Energy Partners and chairman of HETI
Wael Sawan, CEO of Shell plc
Lorenzo Simonelli, chairman and CEO of Baker Hughes Co.
Mike Wirth, chairman and CEO of Chevron Corp.
Jeremy Pitts, managing director of Activate Houston
And many others

This year, CERAWeek will center around the theme of Convergence and Competition: Energy, Technology and Geopolitics.

"Change is inescapable," Yergin said in a news release. "The global energy landscape—and to a large extent the entire global economy—is being fundamentally reshaped by the dual forces of convergence and competition. The race for AI is fusing the energy and technology industries like never before, bringing into sharp relief the need to align energy expansion with sustainable economic growth."

"Yet, the potential for collaboration and innovation is increasingly matched by the risk for collision and conflict in a world marked by geopolitical rivalry, tariffs and fragmented supply chains," he continued. "Reconciling an increasingly complex world with the growing demand for energy that is stable, secure and affordable is a complex reality that CERAWeek 2026 will tackle when global energy leaders meet in Houston."

Key topics of discussion will include:

Politics, Economics, Trade and Supply Chains
Policy, Regulations and Stakeholders
Oil Value Chain
Power, Renewables, Generation and Grid
AI and Digital
Minerals and Mining
Electrification Technologies
Investment and Financing
Chemicals and Materials
Business Strategies
The Innovation Ecosystem
Managing Emissions
Low-Carbon Fuels and Mobility
Climate and Sustainability
Workforce Strategy

The CERAWeek Innovation Agora track, which is the program's deeper dive into technology and innovation, will feature thought leadership on "AI, decarbonization, low carbon fuels, cybersecurity, hydrogen, nuclear, mining and minerals, mobility, automation and more," according to the release.

Agora Hubs will return this year and be divided into three zones: new energies, carbon and climate, and AI. The hubs will feature amphitheater-style sessions and panels. Agora Pods will allow energy startups to showcase their ideas in 20- to 30-minute presentations.

Additionally, CERAWeek will introduce a new program this year on Friday, March 27. Known as Look Forward, it will focus on economics, politics and technology.

See the full agenda for the week here. Find more information and register for the event here.

Houston-based Solidec has partnered with Lynas Rare Earth on a clean hydrogen peroxide production pilot in Australia. Photo courtesy Greentown Labs.

Solidec partners with Australian company for clean hydrogen peroxide pilot

rare earth pilot

Solidec has partnered with Australia-based Lynas Rare Earth, an environmentally responsible producer of rare earth oxides and materials, to reduce emissions from hydrogen peroxide production.

The partnership marks a milestone for the Houston-based clean chemical manufacturing startup, as it would allow the company to accelerate the commercialization of its hydrogen peroxide generation technology, according to a news release.

"This collaboration is a major milestone for Solidec and a catalyst for sustainability in rare earths," Yang Xia, co-founder and CTO of Solidec, said in the release. "Solidec's technology can reduce the carbon footprint of hydrogen peroxide production by up to 90%. By combining our generators with the scale of a global leader in rare earths, we can contribute to a more secure, sustainable supply of critical minerals."

Through the partnership, Solidec will launch a pilot program of its autonomous, on-site generators at Lynas's facility in Australia. Solidec's generators extract molecules from water and air and convert them into carbon emission-free chemicals and fuels, like hydrogen peroxide. The generators also eliminate the need for transport, storage and permitting, making for a simpler, more efficient process for producing hydrogen peroxide than the traditional anthraquinone process.

"Hydrogen peroxide is essential to rare earth production, yet centralized manufacturing adds cost and complexity," Ryan DuChanois, co-founder and CEO of Solidec, added in the release. "By generating peroxide directly on-site, we're reinventing the chemical supply chain for efficiency, resilience, and sustainability."

The companies report that the pilot is expected to generate 10 tons of hydrogen peroxide per year.

If successful, the pilot would serve as a model for large-scale deployments of Solidec's generators across Lynas' operations—and would have major implications for the high-performance magnet, electric vehicles, wind turbine, and advanced electronics industries, which rely on rare earth elements.

"This partnership with Solidec is another milestone on the path to achieving our Towards 2030 vision," Luke Darbyshire, general manager of R&I at Lynas, added. "Working with Solidec allows us to establish transformative chemical supply pathways that align with our innovation efforts, while contributing to our broader vision for secure, sustainable rare earth supply chains."

Haotian Wang, co-founder of Solidec, a 2025 Houston Startup of the Year finalist. Photo courtesy Welch Foundation.

3 energy transition cos. in the running for Houston Startup of the Year

People's Choice

We're just two weeks away from the 2025 Houston Innovation Awards, presented by InnovationMap.com, and while an expert panel of judges will determine the winners in most categories, one award is up to the public.

Voting is now open for 2025 Houston Startup of the Year, the people's choice award. Six exceptional finalists are in the running for the title, including three from the energy transition sector.

From next-gen biobased materials to technology that creates chemicals without carbon emissions, these companies are shaping the future.

Read about all of the Startup of the Year finalists and their missions below, then cast your vote. You can vote once per day through November 12.

The winner, along with winners in all other categories, will be revealed live on November 13 at Greentown Labs. Tickets to the 2025 Houston Innovation Awards are available now — get yours today.

2025 Houston Startup of the Year finalists:

Eclipse Energy

Eclipse Energy, previously known as Gold H2, is a climatetech startup converting end-of-life oil fields into low-cost, sustainable hydrogen sources. The company completed its first field trial this summer, which demonstrated subsurface bio-stimulated hydrogen production. Eclipse Energy says Its technology could yield up to 250 billion kilograms of low-carbon hydrogen.

Rheom Materials

Rheom Materials is a next-generation startup developing biobased materials for a more sustainable future. Its two flagship offerings are Shorai, a sustainable leather alternative that is usable for apparel, accessories, car interiors, and more, and Benree, an alternative to plastic without the carbon footprint.

Solidec

Solidec is a chemical manufacturing company developing autonomous generators that extract molecules from water and air and convert them into pure chemicals and fuels that are free of carbon emissions. The technology eliminates the need for transport, storage, and permitting.

FlowCare

FlowCare is developing a period health platform that integrates smart dispensers, education, and healthcare into one system to make free, high-quality, organic period products more accessible. FlowCare is live at prominent Houston venues, including Discovery Green, Texas Medical Center, The Ion, and, most recently, Space Center Houston, helping make Houston a “period positivity” city.

MyoStep

MyoStep is a next-generation, lightweight, soft exoskeleton developed at University of Houston for children with cerebral palsy. The soft skeleton aims to address motor impairments that impact their ability to participate in physical activities, self-care, and academics, via an affordable, child-friendly solution that empowers mobility and independence.

Persona AI

Persona AI is a humanoid robotics startup that is creating rugged, autonomous robots for skilled, heavy industry work for various "4D" (dull, dirty, dangerous, and declining) jobs. In May, the company announced a memorandum of understanding with HD Korea Shipbuilding & Offshore Engineering, HD Hyundai Robotic, and Vazil Company to create and deploy humanoid robots for complex welding tasks in shipyards. The project will deliver prototype humanoids by the end of 2026.

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The Houston Innovation Awards program is sponsored by Houston City College Northwest, Houston Powder Coaters, FLIGHT by Yuengling, and more to be announced soon. For sponsorship opportunities, please contact sales@innovationmap.com.

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Houston carbon removal company secures $35M in financing

national scale

Houston-based Vaulted Deep, a waste management and carbon removal company, has announced a major $35 million debt facility from Italian investment bank Mediobanca to support its national expansion.

U.K.-based market energy solutions CFP Energy arranged the deal, which is “the largest publicly disclosed U.S. commercial debt deal in durable carbon removal to be secured by long-term purchase contracts,” according to a news release from the companies.

The financing will support new waste disposal sites for Vaulted Deep and advancements of the company’s AI-enabled site development platform. The platform helps identify locations, navigate permitting and optimize injection operations. When candidates are looking for sites, the platform will pull from regulatory, geology and waste-supply data to assist, which Vaulted Deep says will help streamline the permitting process. After the site is operating, the platform helps control algorithms to maximize safe disposal capacity and monitor the process along the way.

"Waste operators across the country need new options as traditional disposal options become limited,” Julia Reichelstein, CEO and co-founder of Vaulted Deep, said in the release. “This financing lets us take on more projects and invest in the tools that help us evaluate and develop new sites faster. This is a meaningful milestone for Vaulted as we move into the next phase of building infrastructure at a much larger scale."

The deal is supported by Vaulted Deep's long-term waste service and carbon removal purchase contracts. The company says it delivered more than 20,000 tons of carbon removal to buyers in the first half of 2026, which is more than it delivered in all of 2025.

"By facilitating these types of transactions, we connect institutional capital with innovative climate technologies, helping accelerate the deployment of high-integrity carbon removal solutions,” Tyler Manchester, head of voluntary carbon for CFP Energy, added in the release. “It reflects growing investor confidence in these solutions, driven by rising demand from corporate buyers seeking permanent pathways to support net-zero commitments and long-term climate strategies."

Beyond the facility, Vaulted Deep has secured $48 million in equity financing in addition to its $8 million from the XPRIZE Carbon Removal competition, backed by Elon Musk’s charitable organization, The Musk Foundation.

The company's well injection technology is used to store organic waste deep underground in stable geologic formations. In 2025, it inked a 12-year deal with Microsoft to remove up to 4.9 million metric tons of carbon dioxide from the environment.

Houston's power future report and more top energy transition headlines

Hot News

Editor's note: It's time to look back at the top Houston energy transition news in recent weeks, from a report that examines Houston's power future, to exciting funding raises for a local startup and a member of a local incubator. Here are the five most-read EnergyCapitalHTX stories from September 16-30, 2026:

Houston’s power future: The role of energy efficiency and demand response

A new report from the Houston Energy Transition Initiative, “Role of Efficiency & Demand Response to Meet Near-Term Regional Power Demand,” examines how Houston can get more from the grid it has today. Its central finding: energy efficiency (EE) and demand response (DE) can create measurable grid “headroom” while new major infrastructure projects are being planned, financed, permitted and built. Explore the key takeaways from the report. Continue reading.

ExxonMobil secures approval for $5B East Texas carbon capture project

Spring-based ExxonMobil has won approval from the Texas Railroad Commission for a $5 billion carbon capture and storage project in East Texas. The project will enable the company to inject about 53 metric tons of industrial customers’ carbon emissions into three underground wells it drilled in the Beaumont-Port Arthur area. Over a 13-year period, ExxonMobil plans to inject about 4 million metric tons per year into the Fleming and Upper Frio rock formations, according to Carbon Herald. Continue reading.

Houston-based ‘grid in a box’ provider Branch Energy raises $33M

Houston-based startup Branch Energy, which offers a self-contained “grid in a box,” has collected $33 million in a Series B round. Piva Capital and Clean Energy Ventures led the round. Active Impact Investments, Whitecap Venture Partners, Prelude Ventures, Zero Infinity Partners and Inovia Capital also contributed to the round. In 2024, Branch raised $10.8 million in an oversubscribed Series A round. Continue reading.

Kanin Energy raises up to $100M for waste-heat-to-power projects

Kanin Energy, a member of the Greentown Labs climatech and energy incubator in Houston, recently raised as much as $100 million in capital to grow its energy-as-a-service platform. S2G Investments led a round of up to $50 million, and the Canada Growth Fund chipped in an additional $50 million. The money will primarily support Kanin’s development and operation of waste-heat-to-power projects. Continue reading.

Houston-based ENGIE wins national award for clean energy leadership

Houston-based ENGIE has been recognized for its work in the clean energy space. The battery storage and energy infrastructure company recently won the 2026 Green Power Leadership Award in the Market Innovation category for its work advancing 24/7 renewable energy solutions. The awards honor individuals and companies advancing sustainability and renewables in the energy industry through innovation and leadership. Continue reading.

8+ must-attend Houston energy transition events in October 2026

Must-Attend Meetings

Editor's note: October is here, and there are many energy events to plug into in Houston this month. From summits and forums to exhibitions and networking opportunities, these are the top events to put on your calendar. Learn more below, and register now.

Oct. 6-7: Hydrogen Americas Summit and Exhibition

Hydrogen Americas delivers an unparalleled opportunity to explore how hydrogen integrates with CCUS and other energy solutions under the new U.S. and Americas energy paradigm. This event moves to Houston in 2026, providing unmatched access to industry leaders and opportunities. The summit will include CCUS dedicated sessions integrated directly into the conference programming, providing deeper insights into carbon capture, utilization, and storage. Look forward to networking opportunities to connect with global suppliers, regional developers, and key policymakers.

This event begins Oct. 6 at George R. Brown Convention Center. Register here.

Oct. 6-7: Annual Energy Summit — Energy, Risk, and Geopolitics

The 10th annual energy summit is co-hosted by Baker Botts and the Center for Energy Studies at Rice University's Baker Institute. This year's summit, “Energy, Risk, and Geopolitics,” will explore how a changing geopolitical landscape and shifts in supply chain risks are impacting investment, innovation, and market dynamics. The two-day program will include discussions spanning petroleum and LNG markets, critical minerals, electricity reliability, AI, and power demand.

This event begins Oct. 6 at 7:30 am at James A Baker III Hall. The event will also be livestreamed. Register here.

Oct. 7: Industrial Data Forward Forum 2026

Houston continues to sit at the intersection of energy, chemical production, and advanced manufacturing. Industrial data experts, automation engineers, and enterprise architects will gather for this one-day forum to address one of the region's biggest operational challenges: modernizing massive, legacy industrial plants without incurring high costs.

This event takes place Oct. 7 at Norris Conference Center. Register here.

Oct. 14: Houston Engineering, Energy & Transportation Networking Event

Connect with leading engineers, energy experts, environmental innovators, and transportation professionals during an evening of collaboration, insight, and opportunity. This exclusive event is designed for engineers, project developers, renewable energy specialists, urban planners, environmental consultants, and infrastructure leaders eager to expand their networks, exchange ideas, and explore solutions driving the future of sustainable development.

This event takes place on Oct. 14 at 7 pm at SOHO Garden. Get tickets here.

Oct. 14: Future of Global Energy Conference

This October, the sixth annual Future of Global Energy Conference kicks off, convening influential leaders from across energy, technology, finance and public policy who will come together to explore the forces defining the next era of global energy and Houston’s role in shaping it. Ryan Lance, Executive Chairman of ConocoPhillips and 2027 Chair of the Greater Houston Partnership’s Board of Directors, is the keynote speaker, bringing a global perspective on rising demand, market volatility and Houston’s role in the next era of energy growth.

This event takes place Oct. 14 at Marriott Marquis. Register here.

Oct. 17: Energy Day 2026

Energy Day Houston is the nation’s largest free, family-friendly STEM festival. It features over 50 interactive exhibits and live demonstrations focused on traditional and emerging energy career paths to power up your curiosity.

This event begins at 11 am on Oct. 17 at Sam Houston Park. Get details here.

Oct. 22: Geophysical Society of Houston Fall Forum

This one-day event will explore how geophysics continues to drive value in hydrocarbon development while opening new opportunities in geothermal, critical minerals, mining, microseismic monitoring, and other emerging subsurface applications. The forum will highlight both the technologies and business strategies needed to succeed in a rapidly evolving energy landscape.

This event begins at 7 am on Oct. 22 at SLB. Get details here.

Oct. 28-29: Energy Council Houston 2026

Energy Council Houston is a private executive forum for leaders across the U.S. upstream oil and gas sector. Over two days, operators, investors, financiers, and strategic partners will come together to discuss the issues shaping capital allocation, energy security, M&A activity, and energy investment across North America.

This event begins Oct. 28 at the Four Seasons Hotel Houston. Register here.

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