The Double Squeeze: Why Japan Is Caught Between Oil and the Dollar

Japan pays for its energy in dollars it doesn't print. When Brent rises and the yen weakens at the same time, the pain doesn't add — it multiplies.

When you look at the news right now, you'll see two things happening at once: oil prices are near $100, and the Japanese yen is weak — sitting around 159 to the US dollar. Most people treat these as two separate stories. They're not. For Japan, they're the same story. And once you understand why, these two charts become one of the clearest warning signals in global markets.

Let's break it down simply.

Japan Runs on Imported Oil — Almost Entirely

Japan is a small island country with almost no oil of its own. It imports roughly 85–90% of its crude oil from the Middle East — mainly from the UAE, Saudi Arabia, and Kuwait. Every single barrel that fuels Japanese factories, cars, and power plants travels by ship through the Strait of Hormuz — the narrow waterway in the Persian Gulf that is effectively choked by the current Middle East conflict.

Think of it this way: imagine your home has no gas pipeline and you have to order gas cylinders from overseas every week. Now imagine that the shipping route gets disrupted and the price doubles. That's Japan's situation — but at the scale of the world's fourth-largest economy.

Brent Crude Oil · Weekly · Oil spent three years falling inside a descending channel (A → B → C). The Middle East war blew that entire structure apart in weeks, spiking price to $120+ before settling back to $102.

Look at the Brent chart above. From mid-2022 all the way through late 2025, oil was slowly grinding lower — falling from about $93 to as low as $58. The market was relaxed. Many analysts were even predicting oil could drop to $50.

Then the war started. Within weeks, the price exploded past every resistance level — shooting above $120 before pulling back to around $102. Three years of slow decline was wiped out in a single move. That's what a real supply shock looks like: sudden, violent, and hard to reverse quickly.

The Hidden Second Problem: Oil Is Priced in Dollars

Here's where it gets interesting — and where most people miss the point.

Japan doesn't pay for its oil in yen. Oil is bought and sold globally in US dollars. So before Japan can even purchase a barrel of oil, it first needs to buy US dollars using its yen. That means Japan has not one cost problem, but two:

Here's a simple example to make it real. Say Japan normally pays ¥10,000 for a barrel of oil. If oil rises 30% and the yen weakens 10% at the same time, Japan now pays roughly ¥14,300 for that same barrel — a 43% increase in cost, not just 30%. The two pressures multiply each other. Scaled across Japan's entire oil import bill of over $100 billion a year, that difference is enormous.

USD/JPY · Weekly · After peaking at 162 in 2024, the yen recovered in an ABC pattern (A: 141.7 → B: 159.5 → C: 141.8). The correction is now complete. Price is back at 158.93 — knocking on the door of the critical 160 level.

Now look at the USD/JPY chart. The higher this number goes, the weaker the yen is. It peaked at 162 in mid-2024, then went through a correction — dropping to 141, bouncing to 159, dropping again to 141 — before climbing all the way back to 158.93 today.

That 160 level is the one to watch. Every time price has approached 160, Japan's government and central bank have reacted. And that reaction is the next part of the story.

The 160 Line: Why Japan's Government Won't Let It Break Easily

Japan doesn't just sit back and watch its currency weaken. When USD/JPY gets close to 160 — or threatens to go beyond it — two powerful institutions step in.

The Bank of Japan (BOJ)

The BOJ is Japan's central bank — the equivalent of Bank Negara Malaysia. When the yen gets too weak, the BOJ can raise interest rates to make yen-denominated savings more attractive, which pulls money back into Japan and strengthens the yen. This is exactly what happened in August 2024 — the BOJ raised rates unexpectedly, and the yen surged from 158 all the way down to 141 within weeks. You can see that sharp drop labelled as point (A) on the USD/JPY chart.

The BOJ can also directly intervene in the currency market — selling its US dollar reserves and buying yen in the open market to push the exchange rate lower. Japan has done this multiple times in 2022 and 2024 when the yen was under severe pressure.

The Finance Minister

Japan's Finance Minister is the other guardian of the yen. When the currency weakens sharply, the Finance Minister will issue verbal warnings — public statements saying the moves are "excessive" or "speculative" and that Japan is "ready to take action." These words alone can slow the yen's decline because traders know a real intervention could follow at any moment.

In 2022, Japan spent over $60 billion in actual dollar-selling interventions. In 2024, another round followed. Each time, the 160 level has acted like a trip wire — the closer USD/JPY gets to that number, the louder the warnings get, and the higher the chance of a sudden, sharp reversal.

Right now, at 158.93, USD/JPY is less than 2 yen away from 160. The chart shows price has tested and bounced from this zone before. Whether it holds again — or finally breaks through — is one of the most important macro questions of the moment.

Why the US Fed Makes Everything Worse for Japan

You might wonder: why is the yen weak in the first place? The simple answer is interest rates.

When a country has high interest rates, investors from around the world move their money there to earn better returns. The US has kept interest rates high. Japan has kept rates near zero for decades. So money naturally flows from Japan to the US — selling yen, buying dollars — which pushes USD/JPY higher and weakens the yen.

The oil shock makes this worse. Historically, when oil prices spike, central banks like the Fed do not cut interest rates — they actually hold or raise them to prevent inflation from spiralling. So the oil shock that is hurting Japan also prevents the Fed from providing any relief. The dollar stays strong. The yen stays weak. Japan's double squeeze continues.

Why This Matters Beyond Japan

Japan is not just any country feeling the pinch. It is the world's fourth-largest economy and the single largest foreign holder of US government bonds — owning over $1 trillion worth. When Japan comes under real financial stress, the ripple effects reach every corner of global markets.

The August 2024 crash — visible as the sharp drop to point (A) on the USD/JPY chart — was a small preview of what a carry trade unwind looks like. The Nikkei dropped 12% in a single day. Global markets followed. That was triggered by just one unexpected BOJ rate hike. A more severe version, driven by genuine financial distress rather than a policy surprise, would hit much harder.

What to Watch Right Now

So what does this all mean practically? Here are the three things to keep your eye on:

Right now, we have Brent at $102 and USD/JPY at 158.93 — both elevated, both pressing against critical levels. The system is under stress. Something has to give: either oil eases as the war de-escalates, or Japan's government steps in to defend the yen, or the pressure builds until it breaks through. All three outcomes would move global markets.