LNG supply at risk.

Why Qatar is the choke point inside the choke point.

Qatar produces roughly 20% of the world’s LNG and ships essentially all of it from the Ras Laffan industrial complex on its eastern coast. Every cargo, without exception, sails through the Strait of Hormuz. The closest competitor on the supply side is the United States, which exports through Gulf of Mexico and Pacific terminals; Australia, which loads in the northwest; Russia, via the Yamal peninsula; and a long tail of smaller producers in West Africa, Southeast Asia, and the Caribbean. None of those is exposed to Hormuz, and none can scale up on a timescale that matters during a months-long closure.

Long-term contracts dominate the LNG market. Most Qatari output is sold under 20- to 25-year offtake agreements to Japanese, Korean, Chinese, Indian, and increasingly European utilities. When those cargoes don’t arrive, the buyers don’t simply switch suppliers; they tap inventories, draw on the spot market for whatever’s available, and burn alternative fuels (typically pipeline gas, fuel oil, or coal) for power generation. The spot market sets the price for the marginal cargo, and that price moves first and hardest when Hormuz tightens.

Why pipelines don’t help.

The crude story has a partial answer in the bypass pipelines: Saudi Arabia’s Petroline (5 million barrels per day to Yanbu on the Red Sea), the UAE’s ADCOP line (1.5 million bpd to Fujairah on the Gulf of Oman), and Iran’s Goreh-Jask (350,000 bpd nameplate, currently running at a fraction of capacity). Together they carry roughly 40% of normal Hormuz oil flow around the strait.

LNG has no equivalent. Liquefying natural gas requires cooling it to about −162°C, loading it into specialized cryogenic carriers, and unloading at a regasification terminal. Pipelines transport gas as a compressed vapor, not liquid; you cannot pipe LNG. Qatar’s only realistic export route for its liquefaction trains at Ras Laffan is by ship through Hormuz. There is no Saudi-style east-west LNG pipeline to Yanbu, no Fujairah-equivalent terminal on the Gulf of Oman, and no near-term project that would build one.

Why the Cape route is worse for LNG than for crude.

When Hormuz is closed and convoy escort capacity is limited, cargoes that can reroute do so via the Cape of Good Hope. That works passably for Atlantic-bound crude; VLCCs are slow but cheap, and they can be loaded at Yanbu or Fujairah from the bypass pipelines. LNG carriers can’t.

A Qatari LNG cargo bound for an Asian buyer normally sails out through Hormuz, east across the Indian Ocean, through the Strait of Malacca, and unloads at a Japanese, Korean, Chinese, or Indian terminal. There is no sea route out of the Gulf that avoids Hormuz: when the strait is fully blocked, the cargo simply does not sail. The Cape question arises only for cargoes that do clear the strait, under escort or in a partial-transit regime, and then face a second risk zone at Bab el-Mandeb. A Europe-bound cargo avoiding the Red Sea takes the Cape instead, stretching a voyage of roughly two-and-a-half weeks via Suez past four. Boil-off losses scale with voyage time, so a long detour also burns more of the cargo as fuel before it arrives, a real, measurable revenue loss on every voyage.

More damaging: the global LNG carrier fleet has limited slack. Newbuild orders run multi-year. When ships sit on extended routes, the same supply meets less of the world’s demand per unit time. Stretch enough voyages tied to the world’s largest single LNG export complex and the global fleet’s effective carrying capacity contracts by a meaningful fraction, all at once.

Who feels it first.

Buyers without competitive pipeline gas alternatives feel the tightening earliest: Japan and South Korea, which are island grids reliant on imported LNG for baseload generation; Taiwan, in the same position; India, which backfills domestic shortfalls with imported LNG; and the European Union, which has been deepening LNG dependence since the 2022 disruption to Russian pipeline gas. Higher LNG spot prices in any of these markets cascade quickly into power, industrial, and household energy bills.

China is structurally more resilient: it has a large pipeline connection with Russia (Power of Siberia, with a second corridor under negotiation as a strategic backstop), and it has been underwriting US LNG offtake to diversify away from Qatari supply for years. The marginal Chinese buyer sets the floor on spot LNG, not the ceiling.

What we watch.

On Straits, the live indicators most relevant to LNG are the commercial transit count (LNG carriers are visible in our AIS manifest at /vessels), the carrier suspension grid (LNG operators announce posture changes on the same advisory pages as container carriers), and the war-risk insurance multiple. Insurance is the leading indicator: it prices the closure before the cargoes are diverted, and it sets the floor on what an LNG voyage to a Western buyer is going to cost.