Iranian oil's disappearance from the market coincides with China's recovering crude demand, forcing Chinese refiners to seek more expensive alternatives. This shift impacts global supplies as replacement barrels tighten the market for other buyers. Tehran faces increasing motivation to disrupt the Strait of Hormuz, a vital shipping lane. China had become Iran's sole crude buyer after political shifts, receiving significant volumes of Iranian oil. Initially, Iran's ability to bypass certain blockades made its oil even more crucial for China. However, a US blockade halted loadings from Iran's main export terminal. Temporary relief allowed for a brief recovery in shipments, but they slumped again. Iran had built up a substantial floating stockpile, enabling continued deliveries to China even when fresh cargoes were blocked. This buffer has been steadily depleted, with Chinese imports of Iranian oil significantly decreasing. Iran still has oil on the water, but a considerable portion is trapped within the Gulf. With onshore storage filling, Iran faces production cuts, making its pre-war output levels unattainable. Chinese independent refiners, heavily reliant on discounted Iranian and Russian oil, are now forced to look further afield for supplies. This has led to increased competition for available barrels and higher shipping costs. The Chinese government has increased import quotas to help refiners, but this does not address the availability or affordability of crude. Competition for Russian oil has also intensified, pushing prices higher. China's overall crude imports are recovering but remain below pre-crisis levels. The depletion of Iranian supplies, coupled with China's growing demand, puts further pressure on global oil availability. Iran's continued inability to export its oil, while neighbors' shipments through Hormuz recover, creates an unsustainable imbalance. This mounting financial pressure could drive Tehran to disrupt vital shipping lanes, exacerbating supply shortages and increasing costs further.