2024 underscored a need for market participants to remain nimble in the face of uncertainty. The record of over two billion futures and options traded across ICE during the year highlights the role of our data and tools in global risk management, price discovery and capital allocation.
For over 20 years, we've worked with clients to build a network of interconnected energy markets that provide critical price signals to inform decision making. Against a backdrop of shifting trade dynamics, we offer thousands of hedging instruments, underpinned by the deep liquidity in our global energy benchmarks ICE Brent, Gasoil, Dubai (Platts) and TTF, each of which traded at record levels during the year.
Investments we’ve made in our global platform mean we are uniquely positioned to provide critical price transparency across the energy spectrum, so customers can navigate the energy transition and meet forward-looking demand. In oil markets, our strong trading volumes were driven by uncertainty around supply and demand fundamentals, geopolitical risk and ongoing movements in Russia/Ukraine sanctions policy, as well as managed money flows.
Brent continues to hold its title as the world’s largest and most traded oil contract, anchoring price discovery for three quarters of global crude. In the U.S., the shift of oil activity from Oklahoma in the mid-continent to the Gulf Coast illustrates the evolution of pricing and trading patterns, with Houston today the central location for domestic crude price formation. ICE’s Midland WTI contract, known as HOU, had a particularly strong year in 2024, seeing a significant endorsement from the oil producer Continental Resources which switched a portion of its Permian production to price off HOU. Continental had previously priced this production as a differential to WTI Cushing. Similarly, in recognition of HOU's establishment within Midland WTI pricing, we saw two price assessment companies - Platts, part of S&P Global Commodity Insights, and General Index - both launch daily price assessments of Midland WTI crude as a differential to HOU.
Cleaner energy sources, which include our global natural gas and environmental markets, account for nearly half of our energy revenues compared to one-third a decade ago. Still, the shift to these energy sources remains a complex, long-term dynamic. In Asia for example, coal accounts for ~50% of the region's energy supply, and the coal switching opportunity there alone represents more energy than total energy consumption in North America.
Record traded volume in 2024 across our natural gas market reflects changing market dynamics around the flow of LNG – including a renewed focus on energy security - all of which has implications for trade, pricing, and the way participants address risk. Against this backdrop, our natural gas benchmark TTF had a record 2024 for traded volume and has continued to trade strongly in 2025.
Around the world, the way energy is produced and consumed is changing. Built over the past two decades, our environmental markets are the most liquid for participants to price their emissions. Trading across our environmental contracts hit $1 trillion in notional value for the fourth consecutive year in 2024, while our North American environmental suite hit record traded volume. As more programs are launched, we are creating new markets such as CORSIA for airline emissions.
In interest rates, central banks diverged in their policies as mixed inflation, economic data and geopolitical uncertainty increased the need for risk management. This dynamic saw our interest rate derivatives markets trade at their highest volume levels in 2024. ICE is the only exchange globally to offer a diverse, liquid derivatives complex across European rates, with our Euribor and SONIA contracts representing the most liquid benchmarks for European and U.K. rates respectively.
In equity markets, we saw a cautious reopening of the IPO market with the New York Stock Exchange welcoming 53 new companies including Reddit, LandBridge, Loar Holdings, Viking Cruises, Standard Aero, UL Solutions and Rubrik, helping to raise over $17 billion in new proceeds and representing nine of the top 10 performing IPOs. At NYSE Arca, the top U.S. exchange for listing and trading exchange traded funds (ETFs), work continues to extend weekday trading to 22 hours a day - a move which should make U.S. markets more accessible to investors across the globe.