Petrobras teams up with Houston co. to improve efficiency in drilling

offshore optimization

GA Drilling will work with Petrobras’ R&D center to roll out an autonomous drilling system. Photo via Getty Images

Slovakian geothermal drilling technology company GA Drilling, whose U.S. headquarters is in Houston, has teamed up with Brazilian energy giant Petrobras to reduce well construction costs and well-drilling risks.

Under the new partnership, GA Drilling will work with Petrobras’ R&D center to roll out an autonomous drilling system that enables drilling at offshore wells from a light vessel instead of a costlier semi-submarine or drill ship.

“Taken together, the benefits of our drilling technologies equal better efficiency, leading to lower costs, [a] smaller operational footprint, and ultimately lower risk overall,” Igor Kočiš, co-founder and CEO of GA Drilling, says in a news release.

GA Drilling says its drilling system improves drilling efficiency and enables replacement of conventional drill pipes with lower-risk tubes. Features of the system include drilling automation and control systems, and real-time communications.

In April 2024, GA Drilling announced it had closed on $15 million in funding. Investors included Houston-based oil and gas drilling contractor Nabors Industries, the newly established Underground Ventures geothermal investment fund, and Slovakian venture capital firm Neulogy Ventures.

A year earlier, GA Drilling conducted the first public demonstration of its Anchorbit drilling tool at a Houston test well owned by Nabors. The tool is designed to simplify and improve drilling into high-temperature hard rock formations.

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In a Q&A with EnergyCapital, Guillermo Sierra of Nabors Industries explains how the 70-year-old company is navigating the energy transition. Photo via LinkedIn

Why Nabors wants to be an early leader within the energy transition

Q&A

With over 70 years of experience, Nabors Industries has established itself as one of the largest land contract drilling companies in the world, as well as a provider of offshore platform rigs in the United States and international markets. But how is the company thinking of its next decades amid the energy transition?

Considering the role Nabors is playing in the future of energy is Houston-based Guillermo Sierra's job as vice president of energy transition. In a Q&A with EnergyCapital, he explains how the company envisions its future as an energy leader and what all that entails, including sourcing new technologies — sometimes from promising startups like Sage Geosystems.

EnergyCapital: Tell me about Nabors' commitment to the energy transition. What are your responsibilities leading this initiative?

Guillermo Sierra: Understanding that no single source today consistently delivers affordable, reliable and responsible energy, Nabors sees its future innovating solutions for hydrocarbons and clean energy while removing the tradeoffs between them. “Energy Without Compromise” is the vision guiding these efforts. Ultimately, we view three critical paths for the industry and ourselves to realize this:

Embrace energy innovation over energy exclusion. Too often the energy transition conversation is about excluding particular sources when we should be focused on solving challenges or overcoming limitations with technology. Oil and gas provide affordable and reliable energy but we must address emissions. Renewables are a greener solution but powering society, heavy industries, and hard-to-abate sectors requires sources that are clean, scalable, and baseload-seeking. For our part, we are lowering the carbon intensity of oil and gas operations with AI-based engine management software, fuel enhancers, highline power solutions, energy storage and forthcoming hydrogen injection systems while also investing in geothermal, concentrated solar power, alternative energy storage, emissions monitoring, hydrogen, and advanced materials, to make renewables a viable solution to decarbonize the industrial and energy industries.
Capitalize on strengths and adjacencies. Companies should seek opportunities to apply skillsets and competencies to advance other industries in the pursuit of a sustainable future. It is easy to see how our drilling expertise is valuable to the geothermal industry. Those companies need to drill wells and use technology that’s been developed by the oil and gas industry for decades to produce heat instead of hydrocarbons. Beyond the drill bit though, companies in the broader clean energy community see tremendous strategic value in partnering with Nabors. Our robotics, remote operations, software, automation, AI, manufacturing and engineering capabilities, global customer base of some of the world’s largest companies, worldwide vendor relationships and supply chain can be used to help startups grow and scale much more quickly.
Collaborate to accelerate progress. The proverb is if you want to go fast, go alone. If you want to go deep or go far, go together. Working together and leveraging collective strengths will help us solve some of the most meaningful challenges. There’s room for us all and we need to work together to achieve emissions goals.

EC: When considering a clean tech company, what are the top qualities driving your investment decisions? How did Sage Geosystems fit what you were looking for?

GS: Traditionally, renewables have stumbled some in the power business because they are intermittent and therefore not dispatchable or reliable baseload. There are also safety, supply chain, and environmental challenges to overcome with lithium-ion batteries and the lack of circularity of panels, blades, and other equipment. Additionally, to decarbonize industrial processes, you need clean and efficient sources of heat – which have largely been nonexistent. And the broader industrials complex needs green fuels, hydrogen and sustainable aviation fuel to eliminate their carbon footprint.

Therefore we believe the world needs clean, renewable, scalable, and baseload/dispatchable generation, and alternatives to today’s chemical-based energy storage. When we evaluate our investments, this is what we’re ultimately seeking.

Sage checks every one of these boxes. The company envisions producing renewable baseload power from geothermal and has novel solutions to energy storage. And unlike many geothermal companies, their approach is deployable today with off the shelf technologies.

EC: What role do you see enhanced geothermal playing in the energy transition?

GS: In my opinion, geothermal has been the gaping hole so to speak in net zero plans from companies and governments. Less than 1 percent of the earth is cooler than 1,000 degrees Celsius. Heat gradients needed are miles away while the sun is 93 million miles away. The oil and gas industry has spent decades perfecting how we drill safely and efficiently. We have near limitless energy beneath our feet and have the tools to tap it. Now we need the focus and capital of the broader energy complex.

EC: How big are your long-term aspirations for Nabors in regards to the energy transition?

GS: I believe the energy transition will represent one of the biggest reallocations of capital in human history. By some estimates, some $300 trillion is expected to spent. We want to be a leader. We want in early. We believe we have the skills, competencies, workforce, relationships, and scale to make a meaningful impact and we are taking action.

———

This conversation has been edited for brevity and clarity.

Houston startup Sage Geosystems released the results of its pilot at a Shell-drilled oil well in the Rio Grande Valley’s Starr County. Photo via sagegeosystems.com

Houston-based geothermal energy startup releases promising results of Texas pilot

hot off the press

As it seeks an additional $30 million in series A funding, Houston startup Sage Geosystems has released promising results from a test of its technology for underground storage of geothermal energy.

Sage says the pilot project, conducted at a Shell-drilled oil well in the Rio Grande Valley’s Starr County, showed the company’s long-term energy storage can compete on a cost basis with lithium-ion battery storage, hydropower storage, and natural gas-powered peaker plants. Peaker plants supply power during periods of peak energy demand.

Furthermore, Sage’s geothermal technology will provide more power capacity at half the cost of other advanced geothermal systems, the company says.

Sage’s storage system retrofits oil and gas wells with the company’s geothermal technology. But the company says its technology “can be deployed virtually anywhere.”

The system relies on mechanical storage instead of battery storage. In mechanical storage, heat, water, or air works in tandem with compressors, turbines, and other machinery. By contrast, battery storage depends on chemistry to get the job done.

“We have cracked the code to provide the perfect complement to renewable energy. … The opportunities for our energy storage to provide power are significant — from remote mining operations to data centers to solving energy poverty in remote locations,” former Shell executive Cindy Taff, CEO of Sage, says in a September 12 news release.

Sage says its storage capacity can be connected to existing power grids, or it can develop microgrids that harness stored energy.

An August 2023 article in The New York Times explained that Sage “is pursuing fracked wells that act as batteries. When there’s surplus electricity on the grid, water gets pumped into the well. In times of need, pressure and heat in the fractures pushes water back up, delivering energy.”

The pilot project, a joint venture between Sage and the Bureau of Economic Ecology at the University of Texas at Austin, was performed as part of a feasibility study financed by the Air Force. Now that the test results are in, Sage plans to build a prototype geothermal project at the Air Force’s Ellington Field Joint Reserve Base in Houston.

Sage says another feasibility study is underway in the Middle East in partnership with an unnamed oil and gas company.

Founded in 2020, Sage plans to raise another $30 million to accompany its previous series A funding.

The Virya climate fund and Houston-based drilling contractor Nabors Industries helped finance the pilot project in Starr County.

Last year, Sage announced it received an undisclosed amount of equity from Houston-based Ignis H2 Energy, a geothermal exploration and development company, and Dutch energy company Geolog International. Also last year, Sage said Nabors and Virya had teamed up for a $12 million investment in the startup.

Nabors executive Subodh Saxena challenged leaders to think more like Generation Z at OTC2023. Photo courtesy of nabors.com

Drilling executive calls for a new course of action to achieve success

EMPOWERING TRANSITION

Gone are the days of people, process, and technology. Welcome to purpose, partnering, and governance.

In the early morning hours of the third day of OTC2023, Subodh Saxena, senior vice president at Nabors Industries, succinctly summarized both the challenges and opportunities faced by an industry in the middle of an identity crisis.

The upstream energy industry focused the better part of the last two decades on physical safety, division and clarity of responsibilities, and technology adoption and adaptation. Rightfully so, given the Macondo incident of 2010, the Enron collapse in 2002, and the general wildfire growth of technology in the workplace over the same time frame.

But as leadership that came of age during these tragedies takes the reigns, a new set of challenges arises. Consistent lack of positive financial returns, a shrinking talent pool, and of course, the climate crisis, combine to form the perfect storm for an industry just trying to manage the rising and falling tides of unstable commodity pricing.

To avoid completely capsizing during this squall in which the industry finds itself, Saxena describes three opportunities for improvement.

Attracting new talent by creating psychological safety in our workplaces and improving the perception of technology adaptation in the industry

Embracing a collaborative approach to building new solutions to limit the amount of siloed rework that currently stymies rapid advancement

Improved financial discipline with greater honesty about ROI for the entire supply chain

“We have a mindset in the industry, that we have to build everything ourselves," Saxena laments. "We have to learn to partner because [if] every company invests in new technology to create transition, whether that's hydrogen or any other source of green energy, that return on invested capital is going to become negative. We need to learn to collaborate to ensure that we are all going to be successful.”

The requests made by Saxena represent a growing movement within the incumbent industry to think not of the energy transition as a shift from one energy source to another but as a transition in mindset. Collaboration is the name of the game now, as are mindfulness, responsibility, and above all else, sustainability.

Revisiting purpose, partnering, and governance to identify room for improvement will ultimately determine whether organizations will sink or sail.

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10+ must-attend Houston energy transition events happening in Q3 2025

Must-Attend Meetings

Editor's note: Q3 is here, and with it, a full slate of must-attend events for Houston energy professionals. On the agenda are casual mixers, exciting showcases, week-long happenings, and more. Mark your calendars for these top Houston energy transition events coming up from July to September 2025, and begin registering today. Please note: this article may be updated to include additional events.

July 17 — TEX-E Energy, Innovation, and Entrepreneurship networking mixer

The Texas Exchange for Energy & Climate Entrepreneurship hosts this casual networking event to connect the Houston energy and climate tech ecosystem.

This event takes place Thursday, July 17 at 5 pm at Second Draught. Click here to register.

July 29 — Center for Houston's Future presents Summer Salon

This year's Summer Salon breakfast program is titled "Digital Technology and AI: Challenges and Opportunities for Driving Energy Innovation." Sponsored by bp, it will feature a timely conversation about the intersection of digital technology (including AI) and energy innovation.

This event takes place Tuesday, July 29 at 7:30 am at Junior League of Houston. Click here to register.

August 21 — Transition on Tap

Greentown Labs’ signature networking event returns in August to foster conversations and connections within Houston's climate and energy transition ecosystem. Entrepreneurs, investors, students, philanthropists, and more are invited to attend, meet colleagues, discuss solutions, and engage with the growing community.

This event takes place Thursday, August 21 at 5:30 pm at Greentown Labs. Click here to register.

August 22 – Determined to Lead Women Lunch: Investing Through Market Cycles with Ellen Wilkirson

EnergyTech Nexus hosts a monthly Determined to Lead Women’s Lunch as part of its ongoing efforts to create safe spaces for women leaders in the energy transition to connect, learn, and lead. The August session features Ellen Wilkirson, principal at Rev Innovations. With deep experience across traditional and transition energy sectors, Wilkirson will share how she’s approached investing through multiple market and commodity cycles and what it means to be a clean energy investor in today’s evolving landscape.

This event takes place Friday, August 22 at 1 pm. Click here to register.

August 27-28 — 6th Texas Energy Forum 2025

The 6th Texas Energy Forum will dive deep into the strategies, policies, and innovative solutions that reinforce energy security for the United States and its allies and fuel economic growth — centered on Texas’ pivotal role in the global energy landscape. Key discussions will address the future of regulatory reform, tariffs, and tax incentives; advancements in oil, gas, and LNG markets; the expansion of power generation; and breakthroughs in EVs and charging infrastructure. This year's topic is "Texas: The Energy Innovation Powerhouse."

This event begins Wednesday, August 27 at the Petroleum Club of Houston. Click here to register.

September 3-4 — 11th Annual Digitalization in Oil & Gas Conference

This conference will delve deep into the intersection of digitalization and decarbonization, highlighting the transformation required for the oil and gas sector to stay relevant, resilient, and achieve business value. This year, the focus is on leveraging AI and generative AI, driving sustainability and workforce development, and achieving operational excellence through digitalization. Key objectives include building future-ready facilities, planning for a lower carbon market, and realizing business value through innovative solutions.

This event begins Wednesday, September 3 at Hilton Americas Houston. Click here to register.

September 8-10 — SPE Energy Transition Symposium

The SPE Energy Transition Symposium brings together professionals from multiple disciplines across the energy sector, offering a comprehensive platform for learning, networking, and collaboration. Its primary objective is to facilitate the exchange and dissemination of knowledge drawn from the insights of industry leaders, technical experts, academics, practitioners, representatives from the financial community, and environmental, social, and governance (ESG) leaders. This year's symposium is titled "Synergizing Innovation and Collaboration: Transforming Energy for a Sustainable Future."

This event begins Monday, September 8 at Houston Marriott Sugar Land. Click here to register.

September 15-19 — Houston Energy & Climate Week

Houston Energy & Climate Week utilizes Houston's potential to propel global climate action. This gathering welcomes an unparalleled selection of global energy leaders and communities, giving participants opportunities to interact and discuss capital, technology, workforce, and policy needs. It is organized by Allies in Energy, a nonprofit dedicated to building energy and climate literacy and a pathway to the workforce of the future.

Following an invite-only dinner on Sunday, September 14, this event begins with Opening Ceremonies on Monday, September 15. Click here for details.

September 15-19 — Houston Energy + Climate Startup Week

Launched in 2024, the official Houston Energy and Climate Startup Week returns for its second year, showcasing how Houston is developing and scaling real solutions for the dual challenge of meeting growing global energy demand while reducing carbon emissions. Join leading energy and climate venture capital investors, industry leaders, and startups from around the world for this showcase of the most innovative companies and technologies that are transforming the energy industry while driving a sustainable, low-carbon energy future.

This event begins Monday, September 15 with a kickoff event at the Ion Plaza. Click here for details.

September 16 — Pilotathon 2025 & Company Showcase

EnergyTech Nexus hosts its annual Pilotathon — a high-impact event designed to fast-track pilot deployments for climate and energy tech startups. Expect a full day of curated startup pitches, a 50-plus company innovation showcase, and direct engagement with corporate partners, investors, and ecosystem leaders. The afternoon will also feature participants from the ETN CoPilot Accelerator. Startup applications and event registration is now open at www.pilotathon.com.

This event takes place Tuesday, September 16 at 8 am at GreenStreet. Click here to register.

September 18 — ACCEL Year 3 Showcase

As part of Houston Energy and Climate Startup Week, Greentown Labs will celebrate ACCEL, an accelerator program for startups led by BIPOC and other underrepresented founders. The third ACCEL cohort will present a showcase featuring their technologies, what they’ve accomplished in the first six months of the program, and where they’re headed next. Attendees will also have the opportunity to network with industry leaders who are passionate about and building an inclusive and sustainable future.

This event takes place Thursday, September 18 at 5 pm at Greentown Labs. Click here to register.

Greentown Labs adds 6 Texas clean energy startups to Houston incubator

green team

Greentown Labs announced the six startups to join its Houston community in Q2 of 2025.

The companies are among a group of 13 that joined the climatetech incubator, which is co-located in Houston and Boston, in the same time period. The companies that joined the Houston-based lab specialize in a number of clean energy applications, from long-duration energy storage systems to 3D solar towers.

The new Houston members include:

Encore CO2, a Louisiana-based company that converts CO2 into ethanol, acetate, ethylene and other sustainable chemicals through its innovative electrolysis technology
Janta Power, a Dallas-based company with proprietary 3D-solar-tower technology that deploys solar power vertically rather than flatly, increasing power and energy generation
Licube, an Austin-based company focused on sustainable lithium recovery from underutilized sources using its proprietary and patented electrodialysis technology
Newfound Materials, a Houston-based company that has developed a predictive engine for materials R&D
Pix Force, a Houston-based company that develops AI algorithms to inspect substations, transmission lines and photovoltaic plants using drones
Wattsto Energy, a Houston-based manufacturer of a long-duration-energy-storage system with a unique hybrid design that provides fast, safe, sustainable and cost-effective energy storage at the microgrid and grid levels

Seven other companies will join Greentown Boston's incubator. See the full list here.

Greentown Houston also added five startups to its local lab in Q1. Read more about the companies here.

How Planckton Data is building the sustainability label every industry will need

now streaming

There’s a reason “carbon footprint” became a buzzword. It sounds like something we should know. Something we should measure. Something that should be printed next to the calorie count on a label.

But unlike calories, a carbon footprint isn’t universal, standardized, or easy to calculate. In fact, for most companies—especially in energy and heavy industry—it’s still a black box.

That’s the problem Planckton Data is solving.

On this episode of the Energy Tech Startups Podcast, Planckton Data co-founders Robin Goswami and Sandeep Roy sit down to explain how they’re turning complex, inconsistent, and often incomplete emissions data into usable insight. Not for PR. Not for green washing. For real operational and regulatory decisions.

And they’re doing it in a way that turns sustainability from a compliance burden into a competitive advantage.

From calories to carbon: The label analogy that actually works

If you’ve ever picked up two snack bars and compared their calorie counts, you’ve made a decision based on transparency. Robin and Sandeep want that same kind of clarity for industrial products.

Whether it’s a shampoo bottle, a plastic feedstock, or a specialty chemical—there’s now consumer and regulatory pressure to know exactly how sustainable a product is. And to report it.

But that’s where the simplicity ends.

Because unlike food labels, carbon labels can’t be standardized across a single factory. They depend on where and how a product was made, what inputs were used, how far it traveled, and what method was used to calculate the data.

Even two otherwise identical chemicals—one sourced from a refinery in Texas and the other in Europe—can carry very different carbon footprints, depending on logistics, local emission factors, and energy sources.

Planckton’s solution is built to handle exactly this level of complexity.

AI that doesn’t just analyze

For most companies, supply chain emissions data is scattered, outdated, and full of gaps.

That’s where Planckton’s use of AI becomes transformative.

It standardizes data from multiple suppliers, geographies, and formats.
It uses probabilistic models to fill in the blanks when suppliers don’t provide details.
It applies industry-specific product category rules (PCRs) and aligns them with evolving global frameworks like ISO standards and GHG Protocol.
It helps companies model decarbonization pathways, not just calculate baselines.

This isn’t generative AI for show. It’s applied machine learning with a purpose: helping large industrial players move from reporting to real action.

And it’s not a side tool. For many of Planckton’s clients, it’s becoming the foundation of their sustainability strategy.

From boardrooms to smokestacks: Where the pressure is coming from

Planckton isn’t just chasing early adopters. They’re helping midstream and upstream industrial suppliers respond to pressure coming from two directions:

Downstream consumer brands—especially in cosmetics, retail, and CPG—are demanding footprint data from every input supplier.
Upstream regulations—especially in Europe—are introducing reporting requirements, carbon taxes, and supply chain disclosure laws.

The team gave a real-world example: a shampoo brand wants to differentiate based on lower emissions. That pressure flows up the value chain to the chemical suppliers. Who, in turn, must track data back to their own suppliers.

It’s a game of carbon traceability—and Planckton helps make it possible.

Why Planckton focused on chemicals first

With backgrounds at Infosys and McKinsey, Robin and Sandeep know how to navigate large-scale digital transformations. They also know that industry specificity matters—especially in sustainability.

So they chose to focus first on the chemicals sector—a space where:

Supply chains are complex and often opaque.
Product formulations are sensitive.
And pressure from cosmetics, packaging, and consumer brands is pushing for measurable, auditable impact data.

It’s a wedge into other verticals like energy, plastics, fertilizers, and industrial manufacturing—but one that’s already showing results.

Carbon accounting needs a financial system

What makes this conversation unique isn’t just the product. It’s the co-founders’ view of the ecosystem.

They see a world where sustainability reporting becomes as robust as financial reporting. Where every company knows its Scope 1, 2, and 3 emissions the way it knows revenue, gross margin, and EBITDA.

But that world doesn’t exist yet. The data infrastructure isn’t there. The standards are still in flux. And the tooling—until recently—was clunky, manual, and impossible to scale.

Planckton is building that infrastructure—starting with the industries that need it most.

Houston as a launchpad (not just a legacy hub)

Though Planckton has global ambitions, its roots in Houston matter.

The city’s legacy in energy and chemicals gives it a unique edge in understanding real-world industrial challenges. And the growing ecosystem around energy transition—investors, incubators, and founders—is helping companies like Planckton move fast.

“We thought we’d have to move to San Francisco,” Robin shares. “But the resources we needed were already here—just waiting to be activated.”

The future of sustainability is measurable—and monetizable

The takeaway from this episode is clear: measuring your carbon footprint isn’t just good PR—it’s increasingly tied to market access, regulatory approval, and bottom-line efficiency.

And the companies that embrace this shift now—using platforms like Planckton—won’t just stay compliant. They’ll gain a competitive edge.

Listen to the full conversation with Planckton Data on the Energy Tech Startups Podcast:

Hosted by Jason Ethier and Nada Ahmed, the Digital Wildcatters’ podcast, Energy Tech Startups, delves into Houston's pivotal role in the energy transition, spotlighting entrepreneurs and industry leaders shaping a low-carbon future.

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