Daily Woody Weekly | Sep 13, 2026 — Dubai Crude $114.70, Korea's Pumps Fall Again
Korea National Oil Corporation figures for Sept. 6 through Sept. 10 put the national average gasoline price at 1,859.1 won per liter, down 1.1 won on the week. Diesel fell 0.5 won to 1,844.0 won. Seoul was highest at 1,905.3 won, Daegu lowest at 1,832.1 won.
At Friday's closing exchange rate of 1,345.9 won to the dollar, that average works out to about $1.38 per liter, or roughly $5.23 per gallon. Over the same week Dubai crude, the benchmark Korean refiners actually buy against, rose $14.40 to $114.70 a barrel. Refined product prices moved with it: gasoline rose $9.90 to $131.20, automotive diesel $5.60 to $170.40.
The two lines diverge because Seoul caps the price. On Aug. 21 the government set its ninth round of maximum prices at the same levels as the eighth: 1,784 won a liter for gasoline, 1,773 for diesel, 1,380 for kerosene. A tenth round is due at the end of September, when the current fuel tax cut is also scheduled to expire. On Sept. 12, President Lee Jae-myung wrote on social media that the public need not worry about oil prices, citing reserve swaps, long-haul shipping subsidies and compensation paid to refiners for domestic losses. He said Korea had cut its Middle East crude dependence from 70 percent to the 50s.
The maximum price system (최고가격제) lets the government set a legal ceiling on refinery gate prices for gasoline, diesel and kerosene. It has been set and reset repeatedly since March 2026, most recently in August. Refiners sell below the world price at home and are compensated for the gap, so the cap relocates the cost. It does not remove it.
A pump price that has fallen 17 weeks running reads, from outside, like a country that got lucky on energy. Put the week's two numbers side by side and a different picture appears. Converted at 159 liters to the barrel and Friday's exchange rate, the crude alone rose more than 120 won per liter. The sign at the station came down 1.1 won. Price caps, refiner compensation, shipping subsidies and reserve swaps cover the gap. The cost has not gone anywhere. It has changed payers.
Korea's exposure is also worse than the headlines suggest, because the headlines quote Brent. Korean refineries run on Middle East medium and heavy grades priced off Dubai, and their units are configured for that slate, which takes time to change. With the Strait of Hormuz effectively closed since February, Dubai has at points traded above Brent this year, inverting its usual discount. The same barrel therefore lands heavier in Incheon than in Rotterdam. What Seoul decides at the end of September is how much of that extra weight the state keeps carrying.
Saudi Arabia's East-West Pipeline was hit by drones on Sept. 11 and suspended operations. The 1,201-kilometer line can carry more than five million barrels a day from the eastern oil fields to the Red Sea, bypassing the Strait of Hormuz. Since the war began in February it has served as the main alternative route.
Riyadh said the drones were launched from Iraqi territory. Responsibility has not been established. The sea lane narrowed in the same week, as Yemen's Houthis seized Mokha and Mayyun Island at the southern end of the Red Sea, near the Bab el-Mandeb strait. Prices climbed in steps. Brent for November delivery settled Sept. 10 at $101.21, up 3.4 percent, with West Texas Intermediate at $96.05, up 3.25 percent. WTI passed $100 after the pipeline strike.
Three days earlier, on Sept. 8, the United States and Iran exchanged strikes nine days after their latest truce. Washington said it bombed five Iranian tankers. Tehran said it hit an American base and retaliated against tankers near Kuwait and Bahrain.
| Date | KOSPI close | Driver |
|---|---|---|
| Mon, Sept. 7 | 6,995.39 (+4.61%) | OpenAI product news lifts chipmakers |
| Tue, Sept. 8 | 6,954.52 (−0.58%) | Crossed 7,000 intraday, failed to hold |
| Wed, Sept. 9 | 7,051.64 | First close above 7,000 in about two months |
| Thu, Sept. 10 | 7,033.92 | Fell to 6,898.45 intraday, recovered |
| Fri, Sept. 11 | 6,909.91 (−1.76%) | Session low 6,802.50 |
Monday was the high point. Samsung Electronics rose 5.68 percent and SK Hynix 8.26 percent on OpenAI's product announcement, and the index gained 4.61 percent in a day. It took until Wednesday to close above 7,000, the first time in roughly two months.
The direction changed on Thursday, when Middle East news pushed crude up more than 6 percent in a session. Friday brought caution ahead of the U.S. inflation print. The KOSPI fell 1.76 percent to 6,909.91 and the KOSDAQ 1.95 percent to 820.64. The won weakened 6.7 to 1,345.9 per dollar. By Businesskorea's tally, foreign investors sold a net 1.64 trillion won, about $1.22 billion, and institutions a net 660 billion won, while retail investors bought 2.25 trillion won. Samsung closed down 3.53 percent at 259,500 won, SK Hynix down 2.21 percent at 1,812,000 won. From Monday's close to Friday's, the index gave up 85.48 points.
American consumer prices rose 3.4 percent from a year earlier in August, matching July. The monthly figures did the work. Prices rose 0.4 percent on the month after 0.1 percent in July, and core inflation came in at 0.3 percent against expectations of 0.2 percent.
Futures markets put the probability of a quarter-point increase on Sept. 16 above 86 percent after the release. A week earlier it was near 50 percent, and it had already climbed through the 60s as tension near the Strait of Hormuz lifted crude. The target range has stood at 3.50 to 3.75 percent through five consecutive holds since January. An increase would be the first since July 2023. The meeting runs Sept. 15 and 16.
Chinese exports rose 25 percent year on year in August, in line with forecasts, while imports rose 28.2 percent. The trade surplus widened to $119.09 billion from $112.5 billion in July. Shipments to the United States rose 34.4 percent and to the European Union 6.6 percent.
Korea shows up unusually large in the detail. By Financial News's tally, Chinese exports to Korea rose roughly 50 percent and Chinese imports from Korea more than doubled. The export strength was read as global demand for artificial intelligence infrastructure, against continued weakness in Chinese domestic consumption.
Korea's week ran through one circuit, and both ends of it were visible in the same five sessions. Strikes resumed on Sept. 8 and the Saudi detour closed on Sept. 11. Dubai crude gained $14.40. Energy fed into American monthly inflation, where August core came in hot. Futures then moved September hike odds above 86 percent, and higher rates land first on long-duration growth names, which in Seoul means the two chipmakers that had lifted the index on Monday.
China's August data shows the other end of the same circuit. Chinese imports from Korea more than doubled, and the reading given for the export surge was AI infrastructure demand. Monday's KOSPI and Beijing's August surplus were the same demand arriving through two different windows. That demand is not slowing. Neither is the oil price, and the two now push the same share price in opposite directions. Weeks that open on AI and close on the Federal Reserve are likely to keep coming while both hold.
On Oct. 2 the Prosecution Service closes and two bodies open in its place: an investigation agency for serious crimes and a Public Prosecution Office that indicts and litigates but no longer investigates. The Ministry of Justice took public comment on the reorganization plan through Sept. 9. Under it, 43 direct and joint investigation units at regional offices consolidate into 29, and 67 investigation divisions are eliminated.
On Sept. 8 the government named Kim Ji-yong, a lawyer and former head of the criminal affairs bureau at the Supreme Prosecutors' Office, as the first chief of the new investigation agency. His record has become the issue. He publicly opposed stripping prosecutors of supplementary investigation powers in 2022, and in 2020 signed a statement urging then Justice Minister Choo Mi-ae to reconsider suspending prosecutor general Yoon Suk-yeol. Asked about political neutrality, he said fairness and procedural justice matter, and deferred the rest to his confirmation hearing.
Korean prosecutors have long held both the power to investigate and the power to indict, a combination unusual among democracies and central to Korean politics for decades. The October split ends it. The investigative body is the Major Crimes Investigation Agency (중수청); the indicting body is the Public Prosecution Office (공소청).
Justice minister nominee Kim Seung-won faces a confirmation hearing on Sept. 15. Days before it, reporting showed he had registered his nine-year-old and six-year-old children at an address in a sought-after Bundang school district where they did not live. He acknowledged it was done for their schooling and apologized. A separate fight opened over where the documents came from: a ruling party lawmaker filed a complaint accusing opposition lawmaker Han Dong-hoon of leaking investigative material, and police assigned the case on Sept. 10.
Gender equality and family minister nominee Yong Hye-in, 36, would be the youngest cabinet member in Korean constitutional history. Her difficulty came from inside the governing coalition. She said she would keep her proportional-representation seat while serving, which broke with custom, and her party would lose state subsidy eligibility if she gave it up. On Sept. 11 and 12 the Democratic Party said it could not ignore how strongly young voters had reacted, and moved her status onto the agenda of a Sept. 13 party-government meeting.
The two cases moved differently because only one of them sits on a fixed deadline. The justice ministry has to deliver the Oct. 2 restructuring, so the governing party spent the week contesting the provenance of the leak. The gender equality post carries no such date, and there the party dropped the defense within 48 hours and began collecting internal assessments.
That deadline is worth watching on its own terms. Counting the Chuseok holiday, under three weeks remain before Korea retires an institution it has had since 1948 and stands up two replacements on the same morning. Two confirmation hearings fall inside that window. When institutional design and personnel vetting compete for the same calendar, vetting is usually what yields, and the shape of the Oct. 2 launch will largely be set within the next fortnight.
South Korea's Joint Chiefs of Staff said the North launched several ballistic missiles from the Wonsan area into the East Sea on the morning of Sept. 12. Flight distance was tracked at about 250 kilometers. It was the first launch in 23 days and is read as a response to Freedom Edge, the trilateral exercise run by South Korea, the United States and Japan.
No hearing date has been set for gender equality and family minister nominee Yong Hye-in while her status is under discussion.
Line this week's numbers up in the order they arrived and they make a single sentence.
On Sept. 8 the United States and Iran traded strikes nine days after a truce, and the targets were tankers. On Sept. 11 a drone shut down the Saudi pipeline that had been routing crude around a closed Strait of Hormuz, a line sized for more than five million barrels a day. In the same week the Houthis took Mokha and Mayyun at the mouth of the Red Sea. Dubai crude gained $14.40 to $114.70. American consumer prices then rose 0.4 percent on the month after 0.1 percent in July, with core above forecast. Futures moved the odds of a Sept. 16 rate increase from about half to better than 86 percent. And the KOSPI, which had jumped 4.61 percent on Monday, closed Friday at 6,909.91, led lower by the same two chipmakers that had led it up.
Through all of that, the sign at the average Korean filling station came down 1.1 won, a seventeenth consecutive weekly decline. Converted at 159 liters to the barrel, crude alone rose more than 120 won per liter over those same days. Price caps, refiner compensation, shipping subsidies and reserve swaps carry the difference. When the president wrote on Saturday that nobody need worry about oil prices, the accurate reading is that the bill is being presented elsewhere. Crude reaches Korean pumps with a two to three week lag, and the tenth round of caps and the expiry of the fuel tax cut both land at the end of September.
Inside the country the same month is crowded. Two ministerial nominees were under pressure all week, and on Oct. 2 Korea retires the prosecution system it has run since 1948. Counting the holiday, under three weeks remain. The costs arriving from outside and the decisions deferred at home now come due within days of each other, and how that is handled will be visible before October is a week old.
Anthropic's Claude AI is used as a tool in gathering, analyzing and editing the news. Readers are encouraged to apply their own judgment and to verify independently.
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