India’s LNG Trade: Supply Risks and Strategic Significance

Context

Qatar has regained its position as India’s largest Liquefied Natural Gas (LNG) supplier after supply disruptions linked to the Iran–US war temporarily changed supplier rankings. The episode highlights the impact of geopolitical tensions in West Asia on India’s energy security.

India’s LNG Import Profile

1. High Import Reliance: India imports nearly 50% of its natural gas requirements, driven by domestic production deficits.
2. Concentrated Sourcing: Top exporters—including Qatar, US, UAE, Oman, Nigeria, and Angola—account for over 80% of total LNG imports.
3. Major Suppliers: Qatar remains the largest long-term supplier (~40–45%), followed by increasing volumes from the US and UAE.
4. Supply & Price Vulnerability: High reliance on West Asian exporters and critical maritime chokepoints exposes India to global supply disruptions and price volatility.

About Liquefied Natural Gas (LNG)

1. Definition & Cryogenic Process: Natural gas converted to liquid by cooling to −161°C (−162°C) at atmospheric pressure.
2. Volume Reduction: Liquefaction reduces gas volume ~600 times, making long-distance maritime transport economically viable.
3. Transport & Regasification: Transported via specialised cryogenic vessels and re-converted into gas at coastal regasification terminals.
4. Chemical Composition: Primarily methane (85–95%) with trace amounts of ethane, propane, butane, and nitrogen; naturally colourless, odourless, and non-toxic.
5. LNG vs. LPG: Liquefied Petroleum Gas (LPG) comprises propane and butane stored under moderate pressure (derived from oil refining/gas processing), whereas LNG is ultra-cooled methane.
6. LNG vs. CNG: Compressed Natural Gas (CNG) is natural gas compressed under high pressure at ambient temperatures (used in vehicles), while LNG is natural gas stored in liquid state via cryogenic cooling.

Key Uses of LNG

1. Industrial Feedstock: Serves as a vital feedstock for fertiliser production (urea), petrochemicals, and oil refining.
2. Power Generation: Used as a fuel source for gas-based power plants to support grid stability.
3. City Gas Distribution (CGD): Regasified LNG feeds into CGD networks as Piped Natural Gas (PNG) for domestic/commercial use and Compressed Natural Gas (CNG) for transport.
4. Clean Transition Fuel: Emits significantly lower carbon dioxide and particulate matter than coal or oil, acting as a critical bridge fuel in India’s energy transition.

Strategic Significance of LNG for India

1. Energy Security: Diversifies sourcing and maritime supply routes, mitigating critical fuel supply risks.
2. Gas-Based Economy: Crucial for raising natural gas share in India’s primary energy mix from ~6% to 15% by 2030.
3. Industrial Feedstock: Guarantees reliable gas supply for critical sectors like fertilisers (urea) and petrochemicals.
4. Renewable Energy Complement: Provides fast, flexible power generation to balance grid supply when solar and wind energy
5. Cleaner Freight Fuel: Replaces diesel in long-haul trucks and shipping, reducing vehicular pollution and greenhouse emissions.

Critical Concerns & Challenges

1. Methane Leakage & BOG: Methane losses and boil-off gas (BOG) evaporation during transport compound high Global Warming Potential (GWP).
2. Energy-Intensive Process: Sub-zero cryogenic cooling (−161°C) consumes substantial energy, increasing lifecycle carbon intensity.
3. Maritime Emissions: Long-distance shipping via specialized vessels generates significant cumulative GHG emissions.

4. Carbon Lock-in: High-capital, long-life assets (terminals and pipelines) risk creating infrastructure lock-in, delaying renewable adoption and complicating India’s Net Zero 2070

1. Price Volatility: High reliance on spot markets exposes domestic industries to severe geopolitical price shocks.

Way Forward

1. Import Diversification: Expand multi-country sourcing to reduce reliance on specific regional suppliers and mitigate supply shocks.

1. Strategic Storage: Build strategic gas reserves and strengthen supply chain security to buffer price fluctuations.
2. Methane Abatement: Implement strict leak detection and boil-off gas (BOG) recovery across the supply chain.
3. Balanced Transition: Position LNG as a temporary bridge fuel while scaling renewable energy and domestic gas exploration.
4. Avoiding Infrastructure Lock-in: Conduct demand assessments before expanding LNG infrastructure to prevent stranded fossil-fuel assets.

FAQs

Q1. How does LNG differ from LPG?
Ans. LNG mainly contains methane, while LPG mainly contains propane and butane.

Q2. Why is LNG called a transition fuel?
Ans. It emits less carbon dioxide than coal but still contributes to greenhouse gas emissions.

Q3. What is infrastructure lock-in?
Ans. Long-lived assets like LNG terminals can prolong fossil fuel dependence and delay the shift to cleaner energy.