India’s Oil Supply Chain: From Wellhead to Wheel
How a country with almost no oil of its own became one of the world’s most powerful oil refiners
India imports nearly 5 million barrels of crude oil every single day. It refines more oil than any country except the US, China, and Russia. It exports $85 billion worth of diesel and petrol annually — much of it to Europe. And yet it owns less than 0.3% of the world’s proven oil reserves.
This is the story of how that’s possible.
Where the Oil Comes From
Every morning, somewhere in the Arabian Sea or the Indian Ocean, a Very Large Crude Carrier is making its way toward one of India’s ports — Vadinar, Paradip, Kochi, or Mumbai. There are dozens of them, always in transit, forming a continuous conveyor belt of crude oil from across the world.
India buys 4.86 million barrels of crude per day from the global market — 89% of everything it needs. The remaining 11% comes from its own ageing oilfields, a share that has been shrinking every year for the past decade.
The most dramatic shift in recent years has been Russia. Before 2022, Russia supplied less than 2% of India’s crude. Today it supplies 37% — nearly 1 in every 3 barrels. When Western sanctions hit after the Ukraine invasion and European buyers turned away, India stepped in and bought Urals crude at a steep discount. It was a purely economic decision, and it transformed India’s import map almost overnight.
| Supplier | Volume | Share | Context |
|---|---|---|---|
| 🇷🇺 Russia | 1.80 Mbpd | 37% | Up from <2% pre-2022; Ukraine war discounts |
| 🇮🇶 Iraq | 1.02 Mbpd | 21% | Historically India’s top supplier |
| 🇸🇦 Saudi Arabia | 0.63 Mbpd | 13% | Key OPEC partner |
| 🇦🇪 UAE | 0.44 Mbpd | 9% | Growing diversification partner |
| 🇺🇸 USA | 0.34 Mbpd | 7% | Light, sweet crude for blending |
| 🌍 Nigeria & W. Africa | 0.29 Mbpd | 6% | Angola, Nigeria |
| 🌐 Others | 0.34 Mbpd | 7% | Kuwait, Oman, Mexico |
| Total | 4.86 Mbpd | 100% |
OPEC as a group still accounts for just over half of total imports — but the Russia story dominates everything.
What India Produces Itself
India’s domestic oilfields produce 0.58 million barrels per day — modest, declining, and concentrated in a handful of ageing assets.
| Producer | Share | Key Assets |
|---|---|---|
| ONGC | ~70% | Mumbai High (offshore), Assam (onshore) |
| Oil India Ltd | ~15% | Assam & Arunachal Pradesh basins |
| Cairn / Vedanta | ~10% | Rajasthan (Barmer basin) |
| Others | ~5% | Small private blocks |
ONGC’s Mumbai High field, once a gusher producing nearly half a million barrels a day in the 1990s, now yields a fraction of that. At current production rates, India’s 4.98 billion barrels of proven reserves would last about 14 years. At current consumption rates, they’d be gone in roughly two and a half years.
The hidden story is what India hasn’t found yet. Only about 10% of India’s total sedimentary basin area has been properly explored. Four largely untouched basins — the Andaman Sea, Mahanadi, Bengal, and Kerala-Konkan — are estimated to hold up to 22 billion barrels of undiscovered oil. India’s challenge has never really been geology. It’s been the capital, technology, and regulatory will to go find what’s there.
The Refining Machine
Here is where India’s story gets genuinely remarkable.
India has 23 refineries with a combined capacity of 5.16 million barrels per day — more than it even imports. It is the world’s fourth-largest refiner, and it didn’t build this capacity to meet domestic demand alone. It built it to be a processing hub for the world.
| Company | Capacity | Refineries | Notes |
|---|---|---|---|
| Indian Oil Corp (IOC) | 1.41 Mbpd | 9 | Panipat, Paradip, Mathura, Gujarat… |
| Reliance Industries | 1.36 Mbpd | 1 complex | World’s largest single site; NCI 21.1 |
| BPCL | 0.71 Mbpd | 3 | Mumbai, Kochi, Bina |
| HPCL | 0.49 Mbpd | 2 | Vizag, Mumbai; Barmer u/c |
| Nayara Energy | 0.40 Mbpd | 1 | Vadinar; Rosneft-backed |
| MRPL (ONGC) | 0.30 Mbpd | 1 | Mangalore |
| Others | ~0.50 Mbpd | 6 | CPCL, HMEL, NRL, Digboi… |
| Total | 5.16 Mbpd | 23 | 4th largest globally |
Jamnagar deserves its own spotlight. At 1.36 Mbpd, it is the largest single-location oil refinery on earth. But raw size isn’t what makes it special — complexity does. The Nelson Complexity Index (NCI) measures how sophisticated a refinery is: how many conversion units it has, how many different heavy and cheap crudes it can process, how much value it can squeeze out of every barrel.
| Refinery Type | NCI Score | What it means |
|---|---|---|
| Simple hydroskimmer (Europe) | 2–3 | Basic distillation only; must buy expensive light crude |
| Global average | ~6 | Some conversion units |
| Typical complex refinery | 8–11 | FCC, hydrocracking, reforming |
| Jamnagar (Reliance) | 21.1 | Exceeds the conventional ceiling of the scale |
In practical terms, Jamnagar buys the world’s cheapest, heaviest, most sulphurous crude — the stuff other refineries won’t touch — and turns it into premium diesel, petrol, and jet fuel. One of its two refineries sits inside a Special Economic Zone, with its entire output legally required to be exported. It is, in essence, a giant arbitrage machine built on the Gujarat coastline.
What India Does With All That Oil
Once refined, the oil splits into two streams: what stays in India, and what gets exported.
Domestic Consumption — 4.78 Mbpd
| Product | Volume | Share | Key Use |
|---|---|---|---|
| 🚛 Diesel (HSD) | 1.87 Mbpd | 40% | Road freight, agriculture, industry |
| 🍳 LPG | 0.99 Mbpd | 13% | Household cooking; Ujjwala scheme |
| 🚗 Petrol (MS) | 0.93 Mbpd | 17% | Personal vehicles; +7.5% YoY |
| ⚗️ Naphtha | 0.43 Mbpd | 8% | Petrochemicals, fertilizer feedstock |
| ✈️ ATF (Jet fuel) | 0.20 Mbpd | 4% | Aviation; fastest growing at +9% YoY |
| 🏭 Fuel Oil & Others | 0.94 Mbpd | 18% | See breakdown below |
| Total | 4.78 Mbpd | 100% |
Diesel is king at 40% of all consumption — the lifeblood of road freight, agriculture, and industry. LPG has one of the more remarkable stories: because it’s far lighter than crude, it converts at nearly 1.6 times the barrel rate — which is why 31.3 million tonnes becomes nearly a million barrels a day. Most of it goes to household cooking, transformed from an urban luxury into a rural staple by the Ujjwala scheme, which brought clean fuel to over 100 million low-income households. Aviation fuel is the fastest-growing segment, up 9% as India’s air travel market booms.
What’s Inside “Fuel Oil & Others” (0.94 Mbpd)
This catch-all category bundles several products each individually too small to headline, but significant in aggregate.
| Product | Est. Volume | Where It Goes |
|---|---|---|
| Petroleum Coke (Petcoke) | ~0.20 Mbpd | Cement kilns, power plants, brick manufacturing |
| Bitumen / Asphalt | ~0.18 Mbpd | Road construction; highways, PMGSY rural roads |
| Fuel Oil / HFO | ~0.18 Mbpd | Industrial boilers, marine bunker fuel |
| MTO / Solvents | ~0.08 Mbpd | Paints, adhesives, dry cleaning, chemicals |
| Kerosene (SKO) | ~0.06 Mbpd | Residual rural use; collapsed post-Ujjwala |
| Lubricants & Greases | ~0.05 Mbpd | Engine oils, industrial and metalworking fluids |
| Wax & Paraffin | ~0.04 Mbpd | Candles, pharma coatings, food packaging |
| Miscellaneous | ~0.15 Mbpd | Specialty chemicals, industrial gases |
Petcoke and bitumen together account for well over 40% of this entire bucket. Petcoke is a bottom-of-barrel byproduct — complex refineries like Jamnagar produce enormous quantities of it, sold cheaply to cement and power industries. Kerosene, once essential for rural cooking and lighting, has almost entirely vanished as a category — displaced by LPG under Ujjwala.
What India Sells to the World
The remaining 1.32 million barrels per day leaves India as exported refined products — worth over $85 billion a year.
| Product | Volume | Share | Key Destinations |
|---|---|---|---|
| 🚛 Diesel (HSD) | 0.55 Mbpd | 42% | Europe, UAE, Africa |
| 🚗 Petrol (MS) | 0.29 Mbpd | 22% | USA, Singapore, Africa |
| ✈️ ATF / Jet fuel | 0.11 Mbpd | 8% | Middle East, Africa, SE Asia |
| 🍳 LPG | 0.09 Mbpd | 7% | South Asia, Africa |
| ⚗️ Naphtha | 0.07 Mbpd | 5% | South Korea, China, Singapore |
| 🏭 Fuel Oil & Others | 0.21 Mbpd | 16% | Marine and industrial markets |
| Total | 1.32 Mbpd | 100% | $85B+ export value |
| Export Market | Value | Primary Product |
|---|---|---|
| 🇪🇺 Europe (Netherlands hub) | $18.4B | Diesel |
| 🇸🇬 Singapore | $5.7B | Mixed products |
| 🇦🇪 UAE | $5.4B | Mixed products |
| 🇺🇸 USA | $5B+ | Petrol |
Europe is the single largest destination — and not by accident. Europe has been closing refineries for 15 years. Its car fleet is heavily diesel-dependent as a result of decades of misguided tax policy. And after Russian diesel was cut off in 2022, it needed a new supplier fast. India stepped into that gap almost immediately — and roughly 60–70% of all these exports come from a single company: Reliance Industries’ Jamnagar complex.
The Bottom Line
| Metric | India | Global Rank |
|---|---|---|
| Crude imports | 4.86 Mbpd | #3 importer |
| Import dependence | 89.1% | Among highest for major economies |
| Domestic production | 0.58 Mbpd | Declining |
| Proven reserves | 4.98 billion bbl | #23 globally / 0.28% of world total |
| Refining capacity | 5.16 Mbpd | #4 globally |
| Domestic consumption | 4.78 Mbpd | #3 globally |
| Refined product exports | 1.32 Mbpd / $85B+ | #2 in Asia |
India’s oil supply chain is built on a paradox. A country with almost none of its own oil has built one of the world’s most sophisticated oil processing industries. It buys discounted crude from Russia, runs it through refinery infrastructure that is unmatched in complexity anywhere on earth, and sells the output to the richest markets in the world at full global prices.
The vulnerability is real — 89% import dependence, with over a third of supply now concentrated in a single geopolitically complicated source. The strength is equally real — refining infrastructure that cannot be easily replicated, strategic positioning as both Asia’s processing hub and Europe’s fuel supplier, and billions of barrels waiting to be discovered beneath barely-explored seas and basins.
For a country with 0.28% of the world’s proven oil reserves, India has built a remarkably powerful position in the global oil business. Not by owning oil. By being indispensable to what happens to it next.
