Iran Oil and Gas - Market Share Analysis, Industry Trends & Statistics, Growth Forecasts (2026-2031)

Iran oil and gas market size in 2026 is estimated at USD 39.18 billion, growing from 2025 value of USD 37.10 billion with 2031 projections showing USD 51.51 billion, growing at 5.62% CAGR over 2026-2031. This report is Segmented by Sector (Upstream, Midstream, and Downstream), Location (Onshore and Offshore), and Service (Construction, Maintenance and Turn-Around, and Decommissioning). The Market Sizes and Forecasts are Provided in Terms of Value (USD).

Iran Oil And Gas Market Trends and Insights

Expansion of South Pars Gas-Field Phases

South Pars is the largest single growth lever for the Iranian oil and gas market. NIOC signed USD 17 billion of pressure-boosting contracts that cover new compressor platforms, subsea lines, and additional wells. The shared reservoir holds 14 trillion cubic meters of gas and already supplies 700 million cubic meters per day; however, production would begin to decline from 2027 without the upgrades. Phase 11 has recently added a seventh well, which will increase daily flow by 28 million m³ once all platforms are online. Phase 14 operates at a design throughput of 18.25 billion m³ per year, providing condensate feedstock for domestic refineries. The investment protects recovery rates vis-à-vis Qatar, whose faster drawdown could otherwise trigger a 42 million m³ annual Iranian loss by 2029.

Post-JCPOA Access to LNG Technology and Know-How

Easing technology barriers since 2024 has revived the Iran LNG project, which targets 10 million tonnes per annum (tpa) based on South Pars Phase 12 gas. A preliminary agreement with OMV and a USD 500 million EPC award to a consortium including Daelim highlight renewed European and Asian participation. Iran holds 1,200 trillion cubic feet (tcf) of gas reserves, but remains a negligible LNG exporter because its existing terminals were never completed. Technology inflows enable the monetization of stranded gas, diversification away from sanctions-exposed pipelines, and positioning as a swing supplier to Asia once trains start operating by the late 2020s. Domestic valve and pump makers also gain learning-curve benefits as they localize high-pressure cryogenic components for future schemes.

US Secondary Sanctions Reinstatement Risk

Washington’s secondary sanctions hinder tanker insurance, banking, and spare parts procurement, thereby increasing operational costs and limiting capital for expansion. New designations in 2025 targeted a network facilitating shadow-fleet deliveries to China and imposed penalties on Iran’s oil minister. Iran’s crude exports recovered to about 1.65 mbpd in 2025, yet remain vulnerable to stricter maritime monitoring that could slash flows and dent fiscal receipts. Financial isolation also delays payments to EPC contractors, disrupts equipment imports, and limits foreign direct investment, which is essential for advanced enhanced oil recovery methods.

Other drivers and restraints analyzed in the detailed report include:

• Domestic Fuel-Subsidy Reform Boosting Retail Prices
• Rising Petrochemical Demand from Asia-Pacific
• Ageing Onshore Production Infrastructure

Segment Analysis

The upstream segment contributed USD 26.06 billion to the Iran oil and gas market size in 2025, translating into a commanding 70.25% share of the Iran oil and gas market for the year. Meanwhile, midstream activities are forecast to expand at a 7.18% CAGR through 2031 as new pipelines and storage terminals come online. National Iranian Oil Company has signed USD 13 billion of development contracts that will lift output by 350,000 bpd across six fields, with Azadegan alone slated to reach 550,000 bpd once surface facilities, gas-injection units, and gathering networks are completed. Midstream momentum centers on the 300,000 bpd crude line linking Bandar Abbas refinery to interior supply hubs; this line removes coastal tanker shuttles and saves USD 80 million per year in freight. Downstream gains are expected to come from the fully domestic fourth phase of the Persian Gulf Star Refinery, which will add 120,000 bpd of condensate capacity, positioning Iran as a consistent gasoline exporter rather than importer.

Iran’s sectoral mix reflects an adaptive response to sanctions that limit foreign technology; local contractors now manage complex modules, such as delayed-coking and hydrocracker trains, previously handled by international engineering firms. Domestic fabrication of pumps, valves, and catalysts curtails procurement delays and anchors cost in local currency. Petrochemical integration provides an additional demand sink; output reached 100 million tons in 2024, a 10% rise that cements Iran’s status as the Gulf’s second-largest supplier of polymers and fertilizers. Upstream still dominates cash flow because every incremental barrel secures foreign exchange; however, the parallel expansion of midstream and downstream facilities mitigates export disruptions and captures higher margins from refined and petrochemical products.

Complete Report Scope:

• By Sector
  • Upstream
  • Midstream
  • Downstream
• By Location
  • Onshore
  • Offshore
• By Service
  • Construction
  • Maintenance and Turn-around
  • Decommissioning

List of Companies Covered in this Report:

• National Iranian Oil Company (NIOC)
• National Iranian Gas Company (NIGC)
• National Iranian Oil Refining & Distribution Company (NIORDC)
• National Petrochemical Company (NPC)
• Iranol Oil Company
• Pars Oil Company
• PetroIran Development Company (PEDCO)
• Petropars Ltd
• Dana Energy
• Mapna Group (Oil & Gas Division)
• Persia Oil & Gas Industry Development Co.
• Pasargad Energy Development Co.
• Tadbir Energy Development Group
• Iranian Offshore Engineering & Construction Co. (IOEC)
• National Iranian Drilling Company (NIDC)
• Sina Energy Development Co.
• Khatam al-Anbiya Construction HQ (Oil division)
• Ghadir Investment (Oil & Gas)
• Omid Investment Management (Energy)

Additional Benefits:

• The market estimate (ME) sheet in Excel format
• 3 months of analyst support