The Perfect Marriage Between Oil & Gas and Renewables
The energy transition isn’t replacing oil and gas. It’s creating a bigger, more diversified energy system - and produced water can help power it.
Rethinking the Energy Debate - Addition, Not Subtraction
The energy debate is often framed as a battleground: oil and gas vs. renewables. One side is treated as legacy. The other as the future.
But that story doesn’t fit the moment we’re in.
The world isn’t simply replacing one energy system with another. It’s building a bigger, more complex, and more diversified one. We need more electricity, more renewables, more storage, more critical minerals, more infrastructure, and more energy security.
That’s the reality of the energy addition.
In the short term, energy demand is still growing across the system. In 2025, demand increased across oil, natural gas, coal, renewables, and nuclear. Low-emissions sources grew fast, but fossil fuels didn’t disappear. They still expanded, too.
At the same time, electricity is becoming the fastest-growing part of the energy system. Global electricity demand grew more than twice as fast as total energy demand in 2025, driven by industry, buildings, data centers, EVs, and electrification.
That trend continues toward 2030. Electricity demand is expected to keep growing strongly as the Age of Electricity accelerates. Renewables, nuclear, solar, battery storage, EVs, data centers, and industrial electrification are all pulling the system in the same direction: more power, more infrastructure, and more materials.
Even in a more electrified, renewable-heavy future, the world will need dispatchable energy, industrial fuels, petrochemical feedstocks, existing infrastructure, and reliable supply. Oil and gas demand hasn’t disappeared and will not disappear.
That’s the point.
The future isn’t oil and gas or renewables. It’s oil, gas, renewables, storage, critical minerals, and smarter infrastructure working together in a larger energy system.
The world needs more energy and lower emissions at the same time. That means the fastest path forward isn’t always to dismantle the old system. It’s to rethink how existing infrastructure can support the new one.
That connection is practical:
- Switching from gasoline and diesel vehicles to EVs can reduce one of the largest sources of energy-related emissions.
- Adding more renewables helps meet rising energy demand with cleaner power.
- Extracting lithium from oil and gas wastewater can turn a liability into a clean-energy asset.
- Building a diversified energy mix gives the world more flexibility, resilience, and security.
Oil and gas already have assets, water-handling expertise, operating discipline, and produced water streams. Renewables need storage, flexibility, and critical minerals. EVs and batteries need lithium.
Produced water is where those systems can connect; it can become more than a disposal challenge. It can become a lithium-bearing feedstock for the battery supply chain.
That’s the real connection between oil, gas, renewables, and the energy addition. Not a contradiction. A practical way to build a more diversified energy future.
A future shaped by the perfect marriage between oil and gas and renewables.
Featured Talk: CERAWeek 2025
Want the executive perspective behind this article?
Watch Sune Mathiesen, CEO of Lithium Harvest, present “Securing the Supply Chain of Critical Minerals for the Energy Expansion” live at CERAWeek 2025, where energy leaders came together to discuss what the next energy system will require.
The message is simple: the energy future won’t be built by one sector alone. It will require energy integration, critical mineral innovation, and smarter use of existing infrastructure.
Explore the full story below.
Note: Some figures in the presentation reflect the data available at the time of recording. The strategic point remains the same: the world needs more energy, more electrification, more critical minerals, and a more diversified energy system.
Oil and Gas Still Matter
Oil and gas aren’t going away tomorrow.
That’s not a political statement. It’s an energy reality.
The latest energy data shows a system expanding in multiple directions at once. In 2025, demand increased across oil, natural gas, coal, renewables, and nuclear. Solar PV delivered the largest single share of global energy demand growth, and low-emissions sources supplied most of the increase.
But fossil fuels still grew, too.
Oil demand growth is slowing, especially as EV adoption keeps road fuel demand under pressure. But oil demand still increased in 2025. Natural gas demand also grew, supported by heating, power generation, industry, and oil-to-gas switching in key regions.
That’s the energy addition in real life.
More renewables. More electricity. More EVs. More data centers. More batteries. More demand for flexibility. And still, a large role for oil and gas.
The long-term picture is debated, but it points in the same direction: oil and gas remain part of the global energy system for decades. OPEC’s 2025 Reference Case projects global primary energy demand rising by 23% by 2050, electricity generation rising by more than 80%, and oil and gas together still accounting for more than half of the global energy mix.
You don’t have to agree with every long-term forecast to see the core point.
The future energy system isn’t one-dimensional. It’s larger, more electrified, more renewable, more mineral-intensive, and still dependent on reliable energy infrastructure.
The industry already manages complex assets, large fluid volumes, industrial water systems, pipelines, power access, land positions, permits, and field operations. It knows how to run infrastructure safely, reliably, and at scale.
Those capabilities aren’t outdated in the energy addition. They’re useful.
The question isn’t whether oil and gas have a role in the future energy system. It does. The better question is how that role evolves in a world that also needs renewables, batteries, critical minerals, and lower-emission supply chains.
That’s where produced water changes the conversation.
Produced water is already part of oil and gas operations. It’s already being handled, treated, transported, reinjected, or disposed of. In many cases, it’s seen mainly as a cost and operational burden.
But in the right brine conditions, produced water can become something else. A critical mineral feedstock.
That gives oil and gas a practical role in the next energy system. Not by replacing renewables. Not by becoming a battery company overnight. But by using existing infrastructure to support the supply chains that renewables, EVs, and battery storage depend on.
For oil and gas operators, that’s the bigger opportunity. The future role of oil and gas isn’t only about producing hydrocarbons. It’s also about using the industry’s infrastructure, expertise, and water streams more intelligently.
That’s how oil and gas can support the energy addition.
Renewables Need Critical Minerals
Renewables are scaling fast.
That’s good news. But it also creates a harder question: what does the energy system need around them?
Solar and wind can add cleaner power. But they don’t solve the whole energy challenge by themselves. A more renewable power system also needs stronger grids, more storage, more flexibility, and more resilient supply chains.
That makes the energy transition a minerals transition too.
Solar PV needs materials like silicon, silver, copper, aluminum, and glass. Wind power needs steel, copper, rare earth elements, and large-scale infrastructure. Grids need copper, aluminum, transformers, and new transmission capacity. Battery storage needs lithium, graphite, nickel, manganese, iron, phosphate, and other battery materials depending on chemistry.
Lithium’s role is especially clear.
It doesn’t make solar panels generate power. It doesn’t make wind turbines turn. But it helps store electricity, move energy into batteries, and support the integration of EVs, battery storage, and the broader shift toward electrified transport, resilient grids, and a more flexible energy system.
That’s why renewable energy and lithium demand are now connected.
As more renewables enter the grid, power systems need more short-term storage to manage variability. As more cars, buses, trucks, and industrial systems electrify, battery demand rises. As battery storage becomes a core part of grid infrastructure, lithium becomes more important to the energy system.
The numbers already show it. Lithium demand is rising, driven mainly by EVs and battery storage. For battery metals like lithium, nickel, cobalt, and graphite, the energy sector accounted for most demand growth.
That’s the part of the renewable energy story that often gets missed.
Clean power still needs physical supply chains. It needs materials. It needs refining. It needs infrastructure. And it needs projects that can turn resources into battery-grade products fast enough to matter.
The energy transition can’t be built on generation alone; it needs the minerals behind the machines.
That’s why critical mineral supply has become part of energy security. Not because renewables are failing, but because they’re scaling.
And the faster they scale, the more important the supply chain becomes.
EVs continue to drive lithium demand, and the rapid growth of intermittent renewable energy sources is pushing it even further.
Rethinking Critical Mineral Supply
Why look overseas when a new supply pathway may already be flowing below our feet?
As EVs, battery storage, and renewable technologies scale, demand for critical minerals - especially lithium - is becoming an energy security issue. But today’s lithium supply chain isn’t built for speed, resilience, or local control.
Most lithium still comes from hard-rock mines and evaporation ponds, often far from battery manufacturing centers and heavily concentrated. These routes remain important, but they can be slow, capital-heavy, water-intensive, and difficult to permit. Processing and refining are also concentrated in a small number of countries, which increases geopolitical risk, logistics exposure, and supply-chain vulnerability.
Meanwhile, governments and companies continue searching for new mineral sources in remote areas, often with limited infrastructure and long development timelines.
And here’s the irony.
A scalable, domestic supply pathway can already exist inside the energy system we use today.
Produced water is generated every day by oil and gas operations. It’s already flowing through wells, gathering systems, treatment facilities, pipelines, and reinjection infrastructure. Oil and gas operations can generate 2-6 barrels of produced water for every barrel of oil produced. For operators, that water is often a cost center. For the battery supply chain, in the right brine conditions, it can become a lithium-bearing feedstock.
That changes the model.
Instead of starting with a new mine, new land disturbance, and long-distance logistics, produced water lithium recovery starts with an existing industrial stream. Existing infrastructure. Existing operating expertise. Existing water management. Existing domestic production basins.
That doesn’t mean every produced water stream should become a lithium project.
It shouldn’t.
Brine chemistry matters. Flow rate matters. Pretreatment matters. Integration matters. Economics matters.
But where the conditions are right, produced water can turn an oilfield liability into a critical mineral opportunity - and give oil and gas a practical role in the energy addition.
The future doesn’t need to be built only on new footprints. Some of it can be built on the footprints we already have.
Why rely only on distant, high-cost supply when part of the solution may already be flowing below our feet?
The Best Part? It Can Cut Emissions Where They Matter Most
Here’s the best part.
The perfect marriage between oil and gas and renewables doesn’t just create a fast, regional lithium supply pathway.
It can help tackle one of the biggest emissions levers in the global economy: transport.
Gasoline and diesel vehicles create a major share of energy-related CO₂ emissions. One of the fastest ways to reduce those emissions is to replace combustion engines with EVs.
But EVs don’t scale on ambition. They scale on batteries. And batteries scale on lithium.
That’s where produced water becomes powerful.
Oil and gas operators have the infrastructure. Lithium Harvest recovers the lithium with a lower-footprint process than traditional mining. Battery supply chains get cleaner feedstock. EVs get the material they need to replace gasoline and diesel vehicles faster, on time, and with a more sustainable footprint from the beginning.
That’s the connection.
Cleaner lithium helps make cleaner EVs.
And that matters because EVs aren’t automatically low-carbon from day one.
Battery production creates an upfront emissions footprint. The cleaner the lithium supply chain, the faster an EV can repay that footprint and deliver its climate benefit on the road.
That’s why lithium production matters. Not just for supply. But also for emissions.
From Energy Addition to Energy Integration
The energy future won’t be built by choosing sides.
It’ll be built by connecting systems that used to be treated separately.
Oil and gas have infrastructure, water flows, land access, operating discipline, and scale. Renewables need storage, flexibility, and critical minerals. EVs need battery-grade lithium. Battery storage needs reliable lithium supply to make renewable power more useful.
Produced water is where those systems can meet.
That’s what makes this opportunity different.
It doesn’t ask oil and gas to become something it’s not. It doesn’t ask renewables to stand alone. And it doesn’t ask the battery supply chain to rely only on distant, conventional lithium supply.
It creates a practical connection: A way to recover lithium from water that’s already being produced, handled, and managed by oil and gas operations.
That’s the perfect marriage between oil and gas and renewables. Because when these systems connect, the impact becomes bigger:
- Switching from gasoline and diesel vehicles to EVs can reduce one of the largest sources of energy-related emissions.
- Adding more renewables helps meet rising energy demand with cleaner power.
- Extracting lithium from oil and gas wastewater can turn a liability into a clean-energy asset.
- Building a diversified energy mix gives the world more flexibility, resilience, and security.
That’s what securing the supply chain of critical minerals for the energy expansion really means.
It’s not only about finding more lithium; it’s about finding smarter ways to produce it.
Closer to demand. Connected to existing infrastructure. Designed for lower footprint. Built for the energy system we’re actually moving into.
Oil and gas don’t have to sit outside the energy transition. It can help build the supply chain behind it. By turning produced water into battery-grade lithium, oil and gas can support the materials base behind cleaner transport, stronger battery storage, and more reliable renewable power.
Not because old energy and new energy are the same. Because the future needs both transformation and infrastructure.
The future of energy isn’t divided. It’s diversified and integrated.
The future of energy isn't about choosing between oil and renewables - it's about integrating them into a balanced, more sustainable energy mix.
By extracting lithium from oilfields, we're turning today's infrastructure into tomorrow's solutions - accelerating a more sustainable future.
Ready to Rethink Produced Water?
Produced water is already moving through oil and gas infrastructure.
The question is whether it remains a cost or becomes part of the critical mineral supply chain.
Explore how Lithium Harvest turns lithium-rich produced water into a lower-footprint pathway for battery-grade lithium.
Energy Transition and Sustainability
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