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South Pars / North Dome Gas Field

World's Largest Natural Gas Reserve

South Pars (Iranian side) / North Dome (Qatari side) is the world's largest natural gas field, straddling the maritime boundary between Iran and Qatar in the Persian Gulf. The field contains an estimated 51 trillion cubic metres of gas and 50 billion barrels of gas condensates — making it uniquely important to both nations' energy sectors and global gas supply.

Key details
  • Location: Persian Gulf, shared maritime boundary between Iran and Qatar
  • Total estimated gas reserves: ~51 trillion cubic metres (~40% of Iran's total gas reserves; ~90% of Qatar's gas reserves)
  • South Pars (Iran): 24 development phases; managed by National Iranian Oil Company (NIOC) and its subsidiaries
  • North Dome (Qatar): Managed by Qatar Energy (formerly Qatar Petroleum); supplies feedstock for Qatar's LNG trains at Ras Laffan
  • Qatar's LNG production capacity: ~77–110 million tonnes per annum (MTPA) — makes Qatar the world's largest or second-largest LNG exporter (alongside Australia)
  • Global significance: Qatar's LNG from North Dome supplies Europe, India, Japan, South Korea, and China under long-term contracts
In the news

Tracked since March 19, 2026 · last seen March 20, 2026 · updates as the daily brief publishes

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