Recent escalations in the Middle East have pushed U.S. crude oil prices above $100 a barrel for the first time since May. While geopolitical tensions have driven the initial surge, market experts suggest China’s renewed appetite for crude—after a period of significantly reduced imports—will be the decisive factor in whether prices sustain this rally and potentially reach wartime highs, influenced by lucrative refining margins and dwindling global stockpiles. 
U.S. crude oil prices have made a dramatic roundtrip, breaching the $100 per barrel mark this week for the first time since May. This surge is primarily fueled by escalating conflicts in the Persian Gulf, but the future trajectory of oil prices, especially whether they can sustain this rally and challenge previous wartime highs, now hinges significantly on China's demand dynamics.
On Thursday, the U.S. crude oil price soared past $102 per barrel, marking its highest close since May. This represents an impressive approximately 50% rebound from its summer low of $68.55, which was recorded roughly three weeks after the now-defunct memorandum of understanding between Washington and Tehran on June 17.
The current rally has been exacerbated by a sharp escalation in Middle Eastern hostilities, including the shutdown of Saudi Arabia's critical East-West oil pipeline following multiple attacks. Bob McNally, president of Rapidan Energy, noted that the oil market has been gradually rebuilding a risk premium since the MOU collapsed and the U.S. reimposed its naval blockade on Iran in July. Despite this, prices remain below the April 7 wartime closing high of $112.95.
While the market has started to factor in the intensifying Middle East conflict, it may not have fully accounted for the potential for China to significantly ramp up its crude imports, according to Rebecca Babin, a senior energy trader at CIBC Private Wealth. Babin suggested that a stronger demand pull from Chinese refiners, as they increase operations, could tighten the market further, a factor not yet fully reflected in current prices.
China's Critical Role: From 'Crash Diet' to Renewed Hunger
China has historically served as a critical swing consumer, playing a key role in moderating oil prices during the Iran conflict. It significantly reduced its crude imports by 3 million to 5 million barrels per day, leveraging its vast petroleum reserves, which exceed 1 billion barrels. McNally aptly described this as China's "crash diet," which is now showing signs of ending. "It's coming off the diet and it's thirsty and it's hungry — it's starting to bid crude up," McNally commented on CNBC's "The Exchange."
Chinese refiners are now strongly incentivized to re-enter the market due to the dramatic rise in diesel profit margins. The ongoing conflicts in Iran and Ukraine have crippled a significant portion of global refining capacity, making diesel production exceptionally profitable. Babin emphasized, "Now that these refining margins are so extreme, they literally can't pass it up... They're going to buy crude and they're going to put product on the market and make money."
Although China's crude purchases are not expected to revert to pre-war levels immediately, there has been a noticeable increase compared to the spring. Kpler data indicates a rebound from a wartime low of approximately 6 million bpd in June – nearly a 50% drop from 11.5 million bpd in February – to around 7 million bpd in July and August.
However, Matt Smith, director of commodity research at Kpler, suggests that China's buying activity for the current month remains at similar levels to July and August and is unlikely to dramatically accelerate. He views Beijing as a "savvy buyer" that will likely rely on existing inventories and manage refinery runs rather than purchasing oil at triple-digit prices.
Despite this, the overall trend for oil prices is upward. Emergency stockpile releases, which acted as a buffer earlier in the year, are drawing to a close. Global inventories have plummeted by 400 million barrels over more than six months of conflict, eroding a crucial mechanism that previously prevented prices from soaring, according to the U.S. Energy Information Administration. McNally observed that market optimism and willingness to sell off on "jawboning" about peace prospects are diminishing, stating, "Summer is over, peace didn't happen, the war is still going on."
