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Markets tumble 2% as Israel attacks world’s largest gas field in Iran


What Happened

  • Israel conducted an air raid on March 18, 2026 targeting treatment facilities at Asaluyeh, the onshore processing hub for the South Pars gas field — the world's largest natural gas field — in Iran.
  • Iran retaliated by striking Qatar's Ras Laffan LNG complex, a gas facility in the UAE, a Saudi Arabian oil refinery, and two Kuwaiti gas units.
  • Global stock markets fell approximately 2%, and Brent crude prices surged past $115 per barrel before settling around $110 — the highest since the 2022 energy crisis.
  • Trump warned the US would "blow up" the South Pars gas field if Iran continued attacking Gulf energy infrastructure belonging to its neighbours.
  • The WTO warned that if energy prices remain elevated through 2026, global goods trade growth could slow to just 1.4%.

Static Topic Bridges

South Pars / North Dome Gas Field

The South Pars/North Dome gas-condensate field spans the maritime border between Iran and Qatar in the Persian Gulf and is the world's single largest natural gas field by reserve volume. The field holds an estimated 1,800 trillion cubic feet of usable gas — sufficient to supply global needs for approximately 13 years. Iran's portion (South Pars) covers 3,700 sq km and accounts for 36% of Iran's proven gas reserves and 5.6% of world proven reserves; Qatar's portion (North Field) holds nearly 99% of Qatar's total gas reserves and 14% of global proven reserves.

  • Total field area: ~9,700 sq km in the Persian Gulf
  • Iran's recoverable reserves: ~360 trillion cubic feet
  • Qatar's recoverable reserves: ~900 trillion cubic feet
  • South Pars is the primary source of Iran's domestic energy supply and a major revenue earner
  • Qatar has built the world's second-largest LNG export industry (after the US) around its North Field share

Connection to this news: Israel's strike on the Asaluyeh processing hub — the on-land gateway for South Pars gas — directly threatened Iran's domestic energy supply and export revenues, while Iranian counter-strikes on Qatar's Ras Laffan (the world's biggest LNG complex) escalated the conflict into a regional energy war with immediate consequences for global gas and oil markets.


Energy Security and Geopolitical Risk Premium

Energy security refers to the uninterrupted availability of energy at affordable prices. When major energy-producing regions face conflict, markets price in a "geopolitical risk premium" — an extra cost above fundamental supply-demand levels — reflecting uncertainty about future supply. The Persian Gulf region produces roughly 30% of the world's oil and a significant share of LNG; any threat to its infrastructure can trigger sharp, global price spikes even before actual supply disruptions materialise.

  • Brent crude is the global benchmark for oil pricing; it crossed $115/barrel — a level not seen since 2022 Russia-Ukraine crisis
  • LNG (Liquefied Natural Gas) is natural gas cooled to -162°C for shipping; Qatar is a top-2 global LNG supplier
  • Energy price shocks feed into inflation through higher transport, fertiliser, and manufacturing costs
  • India imports ~85% of its crude oil needs, making it highly sensitive to Gulf energy price volatility

Connection to this news: The simultaneous attack on Iran's South Pars and Iranian retaliation against Gulf LNG infrastructure created a dual oil-and-gas supply shock, directly affecting India's import bill and triggering global market sell-offs.


WTO Trade Multiplier Effect

The World Trade Organization (WTO) monitors global goods and services trade. Energy price shocks affect trade volumes through two channels: (1) higher shipping and input costs reduce the competitiveness of traded goods, and (2) slower economic growth in energy-importing countries reduces overall import demand. The WTO had already lowered 2026 trade growth forecasts; sustained high energy prices risk compressing that figure further.

  • WTO 2026 global trade growth projection at risk: down to 1.4% if energy prices stay elevated
  • Energy prices affect trade via freight costs, petrochemical inputs, and overall growth
  • Developing economies and major importers like India face amplified impact
  • Supply chain disruptions in the Gulf also affect fertiliser exports critical to global food security

Connection to this news: The Iran-Gulf energy conflict directly triggered the WTO warning about trade slowdown, underscoring that military escalation in energy-rich regions has cascading economic consequences far beyond the immediate combatants.


Key Facts & Data

  • South Pars gas field: world's largest, 1,800 trillion cubic feet total reserves
  • Asaluyeh (onshore hub) processes gas from all 24 phases of South Pars
  • Brent crude peaked above $115/barrel on March 18, 2026 — highest since the 2022 crisis
  • Iran counter-struck Qatar's Ras Laffan, UAE, Saudi Arabia, and Kuwait
  • WTO warned global goods trade could slow to 1.4% in 2026 if prices remain high
  • India imports ~85% of its crude needs from abroad; Gulf is the primary source
  • Qatar supplies ~20% of global LNG; disruption at Ras Laffan would be a major shock