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South Pars / North Dome

Geography and Strategic Significance

The South Pars–North Dome gas field is the single largest natural gas field in the world, located offshore in the Persian Gulf. The field straddles the maritime boundary between Iran (South Pars) and Qatar (North Dome). It was discovered in the 1970s, and development has been ongoing since the 1990s.

Key details
  • Total estimated reserves: approximately 1,800 trillion cubic feet (tcf) — the largest single gas reservoir globally
  • Iran's South Pars contributes approximately 70–80% of Iran's total gas production
  • Qatar's North Dome makes Qatar the world's second-largest LNG exporter (after the US); Qatar supplies ~25% of global LNG
  • Ras Laffan Industrial City (Qatar) is the world's largest LNG production and export complex
  • Iran's South Pars has 24 development phases, most now in production
  • The field is located in the Persian Gulf, approximately 100 km south of Assaluyeh port in Iran
In the news

● Tracked since March 18, 2026 · last seen March 21, 2026 · updates as the daily brief publishes

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