How the US-Iran Strait of Hormuz Conflict Drove Vietnam's July 16, 2026 Fuel Price Hike

Diesel recorded the largest absolute and percentage increase, climbing roughly 7.3% from its previous ceiling .

Role of the Fuel Price Stabilization Fund

The two ministries activated the BOG Fund in two ways for this pricing period :

• Contributions suspended for biofuel gasoline (E5 and E10), diesel, and fuel oil.
• Disbursements authorized: VND 1,500/liter ($0.06) for diesel and VND 500/kg ($0.02) for fuel oil. No subsidy was provided for either grade of petrol.

These disbursements directly reduced how much of the international price surge was passed through to retail consumers. Without the fund draw, diesel and mazut would have risen even more . This marked a continuation of the government's strategy of prioritizing disbursement capacity over replenishment during the mid-2026 crisis period .

International Benchmark Surges (July 9–16)

All four key international refined product benchmarks rose sharply over the pricing period, with diesel leading :

• RON92 gasoline (blends E5): up 5.35% to $100.03/barrel
• RON95 gasoline (blends E10): up 6.39% to $103.69/barrel
• Diesel: up 17.03% to $136.28/barrel
• Fuel oil: up 13.55% to $486.37/metric ton

The underlying cause was escalating US–Iran conflict over the Strait of Hormuz. On July 7, Iranian forces attacked multiple commercial tankers near the strait, including a Qatari-owned LNG tanker and a Saudi-flagged supertanker . On July 8, President Trump declared the ceasefire "over" and launched fresh strikes, sending Brent crude surging 5.2% to $78.02/barrel . By July 13, Brent had reached $79.26/barrel as fresh military action continued . Even as prices eased slightly to $84.23 on July 16, they remained near one-month highs . Vietnamese officials formally cited "escalating US–Iran tensions, concerns over Strait of Hormuz disruptions, and the Russia–Ukraine conflict" as the drivers of the domestic adjustment .

Comparison with Neighboring Southeast Asian Countries

Vietnam's new pump prices remained in the middle-to-lower tier of ASEAN, well below most non-subsidized neighbors.

TradingEconomics (June 2026 data) showed Vietnam's average gasoline price at $0.88/liter . Thai-sourced ASEAN price comparisons from March–April 2026 consistently ranked Vietnam below Thailand, the Philippines, Cambodia, and Singapore, but above Indonesia, Malaysia, and Brunei . Vietnam's new July 16 prices of ~$0.76–$0.89/liter kept it moderately priced within the region, with only heavily subsidized Brunei, Indonesia, and Malaysia being cheaper .

Recent History of Stabilization Measures Giving Vietnam Room to Absorb Volatility

Vietnam entered the July 2026 crisis with a well-exercised set of policy buffers accumulated over the preceding months :

1. Fuel Price Stabilization Fund (BOG Fund) – Activated repeatedly since March 2026. In early March, the government tapped the fund at VND 4,000–5,000/liter levels to cap price spikes after the initial Strait of Hormuz closure in late February . In March, the fund was disbursing VND 4,000/liter for petrol and VND 5,000/liter for diesel .

2. VND 8 trillion state budget advance – In late March, the government advanced VND 8 trillion ($303 million) from the 2025 central budget surplus to replenish the BOG Fund, giving it deep reserves to draw on . By the end of the first quarter, the fund had already spent VND 5,418.5 billion ($206 million) and held a remaining balance of just VND 195.9 billion . The advance was critical to the fund's ability to continue disbursements through mid-2026 .

3. Tax policy flexibility – On July 1, the government reinstated the special consumption tax on petrol (+VND 1,430/liter on E10 RON95 and +VND 1,290/liter on E5 RON92) while keeping diesel and fuel oil unchanged, showing selective tax management .

4. Suspension of fund contributions – Throughout mid-2026, the ministries kept contributions to the fund suspended for most fuel types, prioritizing disbursement capacity over replenishment . This policy dated back to April 2026 when Circular 19/2026/TT-BCT formalized the advance and repayment mechanism .

5. Previous price-cutting rounds – In late June and early July, Vietnam had cut fuel prices for four consecutive adjustments, creating consumer and political room for the July 16 increase without triggering panic . From late June to July 9, E5 RON92 fell from around VND 20,126/liter (June 18) to VND 19,190/liter (July 9), and diesel fell from VND 23,534/liter to VND 21,740/liter before reversing .

These measures collectively gave Vietnam the fiscal and policy room to absorb the July 2026 Hormuz shock without resorting to emergency subsidies or rationing.

Key takeaway: Vietnam absorbed the July 2026 Hormuz shock through diesel-targeted stabilization fund disbursements and prior fund replenishment, keeping retail prices at moderate ASEAN levels despite a 17% wholesale diesel surge and sustained geopolitical uncertainty.