Big Banks Reignite Fossil Fuel Financing as Energy Demand Rewrites the Climate Playbook

Fossil fuel financing surged again in 2025, led by major U.S. and Japanese banks, as Wall Street’s energy-security concerns, LNG demand, and the power needs of the AI boom began to outweigh the climate pledges that dominated the post-COP26 era.

According to an annual report coordinated by the Rainforest Action Network, global banks provided roughly $906 billion to coal, oil, and gas companies and projects last year, an 8% increase from 2024. The rebound shows how quickly the banking industry’s climate posture can shift when energy reliability, inflation pressure, and geopolitical risk move back to the center of the market conversation.

JPMorgan Leads the Rebound

JPMorgan Chase was the largest provider, delivering approximately $58 billion in coal, oil, and gas financing, up 12% year over year. Bank of America followed with $47.3 billion, while Citigroup ranked among the top five with $45.3 billion.

The report said U.S. banks accounted for almost one-third of global sector financing, while just 12 banks provided 40% of all global bank lending and underwriting tied to fossil fuels. That concentration matters because it shows how a relatively small group of institutions can drive the direction of energy capital markets.

Japanese Banks Step In Aggressively

Japanese banks also increased their exposure, adding roughly $17 billion in overall fossil fuel deals and representing more than a tenth of global financing. Mitsubishi UFJ Financial Group increased financing by about one-fifth to $47 billion, with Mizuho Financial close behind.

This reflects Japan’s continued focus on energy security and LNG supply. For a country heavily dependent on imported energy, natural gas remains a strategic bridge between decarbonization goals and the need for reliable power.

Europe Moves the Other Way

European banks reduced market share. BNP Paribas cut fossil fuel deals by 28%, while UBS reduced financing by 36%. Barclays remained Europe’s largest fossil fuel financier at $34.1 billion, although that was slightly lower than the prior year.

Barclays argued that economic growth, energy affordability, energy security, and decarbonization remain interconnected. In plain English, the bank is saying the transition cannot happen by starving the old energy system before the new one is fully ready.

Why This Matters to Markets

The renewed rise in fossil fuel financing comes at a critical moment. AI data centers, semiconductor plants, electrification, and industrial reshoring are all increasing demand for reliable power. That makes energy a market story again, not just a political or environmental one.

For traders, this creates a broader watchlist than just oil majors. LNG exporters, pipeline operators, natural gas producers, utilities, engineering firms, coal transport names, and energy infrastructure companies may all benefit if capital continues flowing toward traditional energy assets.

It may also affect bank stocks. U.S. and Japanese banks that remain willing to finance conventional energy could see more deal flow, while European banks may continue to face pressure from stricter climate policies and investor scrutiny.

The AI-Energy Connection

The most important twist is that the same AI boom driving semiconductor demand may also be helping revive fossil fuel financing. Data centers require enormous amounts of electricity, and the grid cannot be rebuilt overnight with renewables alone.

That does not mean the energy transition is dead. It means the transition is becoming messier, slower, and more dependent on traditional power sources than many investors expected just a few years ago.

Trading Takeaway

Markets follow capital. When nearly $906 billion flows into coal, oil, and gas financing in one year, traders should pay attention. The banks may be signaling that the next phase of the AI trade is not only about chips, servers, and cloud platforms — it is also about electricity, LNG, pipelines, and power generation.

The key question now is whether fossil fuel financing is making a temporary comeback because of energy security concerns, or whether this is the beginning of a longer structural repricing of traditional energy in the age of AI.

Either way, fossil fuel financing is back on the market’s radar, and traders should treat it as a major macro theme with direct implications for energy stocks, bank stocks, and the infrastructure side of the AI buildout.