Strait of Hormuz and India: Inside the Oil Supply Chain Nobody Can Replace

To understand the supply chain via the Strait of Hormuz, we first need to understand the flow from supply to consumption.

The journey begins in the fields of Saudi Arabia, Iraq, Kuwait, the UAE, and Iran, where crude is extracted and transported via inland pipelines to major export terminals. Key nodes in this upstream network include ports like Ras Tanura in Saudi Arabia and export facilities near Abu Dhabi, which act as aggregation points where massive volumes of crude are consolidated for global distribution.

From these terminals, oil is loaded onto large tankers—primarily VLCCs (Very Large Crude Carriers)—designed to transport up to 2 million barrels per voyage. These vessels then enter the Strait of Hormuz, which functions as a high-density transit corridor. Despite being one of the most critical energy routes globally, the strait has only two primary shipping lanes (inbound and outbound), each just a few kilometers wide. This creates a linear, capacity-constrained flow, where even minor disruptions can cascade quickly.

Once through the strait, the containers diverge into major global routes. A significant portion of crude moves toward Asia—particularly India, China, Japan, and South Korea—making Asia the primary demand sink. Tankers bound for India typically head toward ports on the western coast such as Jamnagar, home to refining operations of Reliance Industries, or facilities operated by Indian Oil Corporation. These refineries act as downstream transformation hubs, converting crude into usable fuels like petrol, diesel, and jet fuel.

What makes this flow structurally significant is its lack of redundancy. The reason this matters so deeply is not just that a lot of oil flows here — it is that the entire system was built with no plan B. While some oil can bypass the strait through pipelines—such as Saudi Arabia’s East-West pipeline or the UAE’s route to Fujairah—these alternatives cover only a fraction of total volumes. The majority of crude remains dependent on this single maritime passage.

From a supply chain perspective, this creates a classic case of a high-volume, low-flexibility network, where throughput is maximized but resilience is limited. Flow mapping, therefore, reveals a critical insight: the global oil supply chain is not decentralized as it appears—in reality, it is highly concentrated, with the Strait of Hormuz acting as its most vital and vulnerable artery.

Risks -

Geopolitical Risks -

India imports 88% of the crude, and 45-50% of it transits via Strait of Hormuz. India has no military ability to independently reopen the strait. If Hormuz shuts, India cannot reroute 2.5 million barrels/day through any other corridor at comparable speed or cost. The pipeline bypass capacity (Saudi + UAE) covers barely 15% of India's Gulf intake. India's Neutral Foreign Policy and diversification to Russia are the only so-called "Supply chain Tools" India has!

Operational Risks

The Strait of Hormuz is operationally fragile due to factors such as GPS jamming, extreme heat, unpredictable weather, vessel congestion, and human error, with around 138 Very Large Crude Carriers (VLCCs) navigating two narrow shipping lanes where any incident can trigger significant disruptions. Fujairah’s anchorage often has over 200 ships waiting, creating delays that ripple into inventory shocks across global supply chains. Tankers that once took 14 days on Gulf-to-Asia routes can, during disruptions, be forced to reroute around Africa—adding nearly 6,500 nautical miles and approximately 15 extra days to the voyage. Beyond physical constraints, the corridor also faces administrative friction in the form of cargo documentation mismatches, sanctions compliance checks, vessel inspections, insurance approvals, and destination-port clearance delays. This combined fleet crunch reduces tanker availability, raises freight costs, and creates a notable supply shock as longer transit times and lower shipping capacity strain the operational efficiency of one of the world’s most critical maritime corridors.

Supply chain ripple risks -

a.) Refinery shutdowns

India is the world's 4th largest refiner. The Refineries here are calibrated to run specific Gulf crude grades. - Arab Light, Basrah Medium, Kuwait Export. When those grades stop arriving, you cannot simply swap to another crude type overnight. Reconfiguring a refinery takes weeks. If feedstock runs out first, the refinery shuts.

b.) Inventory shortages

Think of India's oil supply like a household that stores extra rice at home. India keeps two types of stored oil — one is a government emergency stockpile buried underground in giant caves in Mangalore, Padur, and Visakhapatnam (this is what experts call the SPR — essentially a national emergency oil savings account). The other is the oil sitting in tanks at refineries, ready to be processed. Together, these two stockpiles add up to about 100 million barrels. A "barrel" is just a unit of measurement — one barrel is roughly 159 litres, about the size of a large oil drum. So 100 million barrels is a lot — it sounds massive. But at the rate India burns through oil every single day, that stockpile only lasts about 30 to 40 days. A month. That's it.

Why are 30 days not actually comfortable?

Imagine you have one month's salary saved, and suddenly your income stops. You're fine for now — but you're watching the clock from Day 1, and every expense still keeps coming. That's India's position. The moment Hormuz disrupts, India starts burning through that stockpile immediately. And it's not just crude oil being consumed — cooking gas for your kitchen stove, diesel for trucks and tractors, jet fuel for planes — all of it starts draining from the same emergency buffer simultaneously. It's like paying rent, groceries, electricity, and school fees all from that one month's savings at the same time.

c.)Bullwhip effect

Imagine a small rumour spreads in your neighbourhood — "the local kirana store might run out of cooking oil next week." What happens?

You go and buy 4 bottles instead of your usual 1. Your neighbour does the same. Within two days, the shelf is empty — not because there was actually a shortage of cooking oil in the city, but because everyone reacted to the fear of a shortage. The kirana owner panics and orders 10 boxes from the wholesaler instead of 2. The wholesaler calls the factory and orders 50 boxes instead of 10. The factory runs its machines overtime.

Two weeks later? The rumour turns out to be false. But now the kirana has 40 extra bottles rotting in the back, the wholesaler has excess stock he can't sell, and the factory is sitting on unsold inventory. Prices went crazy in between — and took months to come back down.

That is exactly what happened with oil and India in 2026. Just at a scale of crores of barrels instead of bottles of cooking oil

Cost & Insurance Dynamics -

First, we need to understand what " war risk insurance " is.

When a ship carries oil from Saudi Arabia to India, it needs insurance — just like your car needs insurance before you drive it. Normally, this is routine and cheap. The shipping company pays a small premium, the insurer covers the ship against accidents, and everyone moves on.

But here is the twist: there is a special extra layer of insurance called war risk insurance — coverage specifically for what happens if the ship gets attacked, hit by a missile, caught in a minefield, or trapped in a war zone. In peaceful times, this extra cover is almost nothing — a rounding error in the cost of shipping oil.

In March 2026, that rounding error became the single biggest cost in the entire India-to-Gulf oil supply chain.

Lloyd's of London — The Most Powerful Room in the World's Oil Supply Chain

Lloyds of London is not a single company. It is a 300-year-old marketplace in London where hundreds of insurance underwriters sit together and collectively decide: "Is this ship in a safe enough place to insure? And if yes, at what price?"

Inside Lloyd's sits a small but extraordinarily powerful committee called the Joint War Committee (JWC). Their job is to maintain a list of the world's dangerous maritime zones. When they add a region to that list, it triggers an automatic chain reaction across the entire global shipping industry.

Within 48 hours of the US-Israeli airstrikes on Iran on 28 February 2026, the JWC redesignated the entire Arabian Gulf as a conflict zone. Major marine insurers terminated existing coverage overnight. Tanker traffic collapsed by more than 80%. The commercial shutdown preceded the physical blockade — insurance closed the strait before Iran's navy did.

Alternate Routes and Resilience

Imagine you live in a city and your entire water supply comes through one pipe. One day, that pipe bursts. Now someone says, "Don't worry, there are alternatives." But when you look closely, you realise:

• One alternative pipe exists, but it can only carry 15% of your normal water

• Another source exists, but it takes 6 times longer to deliver

• A third source is available, but it costs 4 times more

• And one helpful neighbour has been quietly giving you water all along

That is exactly India's situation with oil when Hormuz closes. The alternatives exist. But none of them is fast enough, big enough, or cheap enough to fully replace what Hormuz delivers every single day.

Let us go through each one in plain language.

Route 1 — The Saudi Pipeline (The Partial Fix)

Saudi Arabia has a 1,200 km pipeline called the East-West Pipeline — or Petroline — that runs from its oil fields near the Gulf, all the way across the entire country, to a port called Yanbu on the Red Sea coast.Think of it like a giant underground straw running from one side of Saudi Arabia to the other, bypassing Hormuz entirely.

Sounds like the perfect solution, right?

Here is the catch. The combined available capacity from Saudi and UAE bypass pipelines is about 2.6 million barrels per day. But Hormuz normally carries 20 million barrels per day. So even if these pipelines ran at full blast, they cover only about 13% of what Hormuz normally handles. It is like replacing a 6-lane highway with a small-lane road

Route 2 — Around Africa (The Long Way Home)

If a tanker cannot go through Hormuz, it can go the other way — all the way around the bottom of Africa, through the Cape of Good Hope, and then north through the Indian Ocean to India.

Imagine your usual 30-minute commute to work suddenly becoming a 3-hour detour because the main road is blocked.

The Cape of Good Hope route adds 6,000 to 8,000 nautical miles to the journey, increasing voyage duration by 14 to 16 days.

In plain terms, oil that normally arrives in India from the Gulf in 5 to 7 days now takes 30 to 40 days via Africa. The ship is the same. The oil is the same. But India's refinery has to wait 5× longer for the delivery to arrive.

Route 3 — Russian Oil (India's Real Lifeline)

This is the route that actually saved India in 2026 — and it was already being used heavily before the crisis hit.

Russia exports oil through its own ports in the Baltic Sea and Pacific Ocean — routes that have absolutely nothing to do with Hormuz, the Middle East, or any of the current conflict. A Russian tanker sails from its port, crosses the Indian Ocean, and arrives in India. No Hormuz. No insurance crisis. No Lloyd's Joint War Committee problem.

Russia has been India's largest crude supplier in recent years, with its cargoes travelling through the Indian Ocean without touching the Gulf. Roughly 120 million barrels of Russian crude were at sea during the crisis, and Indian companies began negotiating purchases from these floating cargoes, making it one of the fastest-activation options available for India

So What Is India's True Resilience Position?

What works right now, immediately: Russia is already supplying India and the route is fully operational. The Indian government has emergency stocks for 30 days. The diplomatic Iran exemption allows some Indian ships through. West Africa can top up supplies over 2–3 weeks.

What works but takes time: Cape of Good Hope rerouting — possible but adds 3 weeks and enormous cost. US and Latin American crude — available but 6 weeks away. Saudi bypass pipeline — runs but covers only 13% of the gap.

What does not work: There is no single alternative that replaces Hormuz at the same volume, the same speed, and the same cost simultaneously. Combined bypass capacity covers only around 2.6 million barrels per day — a fraction of the 20 million that normally transit Hormuz. Iraq, Kuwait, and Qatar have no pipeline alternatives at all.