Diesel prices in government-controlled areas of Yemen have nearly doubled since January 2026, halting construction projects across the country and throwing thousands of labourers out of work. The regional war triggered by the US-Israel campaign against Iran has disrupted the fuel supply chains that Yemen's fragile economy depends on almost entirely. Al Jazeera

Twenty litres of diesel cost 25,000 Yemeni riyals (about $17) in January. By late July, the same quantity cost 45,000 riyals ($30), according to pricing data reported by Al Jazeera on July 29. The increase tracks a broader regional energy shock: Brent crude, the global benchmark for oil prices, surged 59% in March 2026 alone, the steepest monthly jump on record, exceeding gains recorded during the 1990 Gulf War. Reuters CNBC separately confirmed that the Iran war triggered an energy shock hitting the US economy, with gas and diesel prices surging before easing when fighting paused weeks later. CNBC

The US-Israel war on Iran began in late February 2026, per Al Jazeera's reporting. Its downstream effects on Yemen have been severe and layered. An official from the Yemen Petroleum Company in Aden told Reuters in May 2026 that diesel price increases were driven by a worsening supply crisis, rising global fuel prices, regional tensions, the closure of the Strait of Hormuz (a narrow shipping channel at the mouth of the Persian Gulf through which about a fifth of the world's oil passes), and increased transportation and marine insurance costs. Al Jazeera Yemen imports nearly all its refined fuel products, making the country acutely exposed to disruptions in Gulf shipping lanes and global price movements.

For Yemen's construction sector, the fuel price spike has cascaded through every layer of the supply chain. The cost of a truckload of sand rose from 130,000 Yemeni riyals ($87) to 190,000 riyals ($127). A metre of window glass went from 90,000 riyals ($60) to 130,000 riyals ($87). These are not marginal increases; they are cost structures that make existing project budgets unviable. Countless construction projects across government-controlled areas have ground to a halt.

Fuad Mohammed, 46, is a construction labourer in Taiz with more than 25 years of experience. He lowered his daily wage from 25,000 Yemeni riyals ($17) to 20,000 riyals ($13) in a desperate attempt to find work. The personal arithmetic is brutal: even at a lower wage, the projects are not there. Wafeeq Saleh, executive director of the Taiz Center for Yemeni-Gulf Studies, provides local analytical context, though the structural dynamic requires little elaboration. When input costs rise faster than financing capacity, construction freezes. Labourers bear the immediate cost.

The fuel crisis is also producing secondary effects. Al Jazeera reported on July 12 that Yemenis are resorting to dangerous energy alternatives, including unregulated vehicle fuel conversions that have caused vehicle fires. Yemeni authorities responded by organising public workshops to warn against the practice. Al Jazeera The pattern mirrors the country's 2022 fuel shortage, when twenty litres of petrol at official stations cost 9,500 Yemeni rials ($16) and more than four times that on the parallel market, according to Reuters reporting from March of that year. Reuters The current crisis differs in scale: prices at official outlets have moved more sharply, and the regional war shows no near-term resolution.

The Houthi dimension compounds the supply picture. On July 20, 2026, the Houthis announced a naval blockade. Institute for the Study of War Around July 24, Houthi militants fired on Saudi oil installations in two Red Sea ports. Reuters AP News reported that the Houthis claimed attacks on two Saudi oil tankers in the Red Sea and, on July 21, fired missiles and drones at Saudi Arabia in response to Saudi strikes. AP News These actions directly threaten the maritime routes through which fuel reaches Yemen's ports, narrowing already constrained supply channels.

The global demand picture adds another variable. According to the International Energy Agency, global oil demand fell by nearly 5% in the second quarter of 2026 from a year earlier, to 99.1 million barrels per day. Reuters Falling demand would normally push prices down. The fact that Yemen's fuel costs continue to climb despite softening global consumption points to the degree to which local supply disruption, maritime risk premiums (the extra cost insurers charge for shipping through dangerous waters), and Houthi actions have separated Yemen's fuel market from broader commodity trends.

CBS News reported during live updates on the Iran war that at least seven major pipeline projects were under construction at the time of reporting. CBS News And Iran's Ministry of Petroleum stated that Iran sold $11.5 billion of crude oil during the war, as reported on July 26. Al Jazeera Both data points frame the regional energy landscape within which Yemen's crisis unfolds: continued Iranian oil revenue on one side, and threatened pipeline and maritime infrastructure on the other, with Yemeni civilians absorbing the supply-chain consequences.

For Yemen's government-controlled areas, the construction freeze is not merely an economic indicator. Construction is one of the few sectors that absorbs low-skilled and semi-skilled labour at scale. When it stops, there is no alternative employer of last resort. The wage reduction that Fuad Mohammed accepted, from $17 to $13 per day, is a market signal that no demand exists even at the lower price point. The Yemeni riyal's depreciation against the dollar compounds the effect: every dollar-denominated import costs more in local currency, and every wage denominated in riyals buys less.

The broader context here is that Yemen's economy has no fiscal cushion to absorb an external shock of this magnitude. The country remains split between rival authorities, each with limited capacity to subsidise fuel or intervene in input markets. The internationally recognised government in Aden has already raised official fuel prices once, in May 2026, when the Yemen Petroleum Company increased petrol and diesel to 1,475 riyals ($0.98) per litre from 1,190 riyals ($0.79). Al Jazeera Further increases would deepen public hardship; subsidising the difference is fiscally untenable. The policy space, in other words, has narrowed to near zero.

What comes next depends on the trajectory of the Iran war and whether Houthi actions in the Red Sea escalate or de-escalate. Neither prospect offers Yemen much relief in the near term. A prolonged war sustains the supply disruption. A ceasefire (a formal halt to fighting) may ease global prices, but Yemen's local distribution bottlenecks, damaged port infrastructure, and currency deterioration will persist long after regional fighting stops. For labourers like Fuad Mohammed, the distinction between war and post-war may prove academic. The construction sites will remain empty either way until fuel becomes affordable again, and there is no mechanism, domestic or international, currently positioned to make that happen.