Kazakhstan Gains Weight in China’s Energy System
The newly extended U.S. waiver for Russian oil transit through Kazakhstan and the reported giant onshore hydrocarbon discovery in western Kazakhstan point in different directions, yet they belong in the same analytical frame. One concerns an existing flow that already reaches China through working infrastructure, while the other concerns a possible future source that has not yet reached the stage of commercially proven reserves. Together, they mark a change in Kazakhstan’s position. The country is increasingly important to China both as a corridor and as a possible larger upstream partner. The U.S. waiver now runs until March 19, 2027. Kazakhstan is not a giant direct oil supplier to China in the way that Russia or Saudi Arabia is; China’s import structure is broader. But Kazakh-origin oil shipments, Russian transit oil, and adjacent energy links now constitute a single, more complex relationship. According to official Chinese sources, oil imported from Kazakhstan enters mainly through the China-Kazakhstan crude pipeline. More Than Kazakhstan’s Own Barrels Kazakhstan-China Pipeline LLP reported that in 2024, the Atasu-Alashankou route carried 1.2 million tons of oil and 9.989 million tons of transit oil, against a design capacity of 20 million tons a year. Official Chinese figures sharpen the point. By the end of 2024, total cumulative throughput on the pipeline had reached 280 million tons, including 19.139 million tons in 2024, while cumulative crude imported from Kazakhstan was lower. Kazakhstan’s significance to China is therefore larger than Kazakhstan’s own volumes would suggest, because the route carries more than Kazakhstan’s own oil. A glance at Europe keeps that proportion straight. Eurostat reports that Kazakhstan supplied 12.7% of the European Union’s petroleum oil imports in 2025. The European External Action Service said that Kazakhstan accounted for 10.9% of EU oil imports in the first quarter of 2024. This made it the bloc’s third-largest supplier in that period, and a more important direct oil supplier to Europe than to China. The significance of Kazakhstan’s geographic proximity to China becomes clearer when one looks beyond crude oil. Kazakhstan is not only a direct oil supplier, but also a transit corridor for multiple China-bound energy flows. The Kazakhstan-China oil pipeline is one of China’s major import routes. At the same time, while Kazakhstan’s own gas exports to China remain limited due to rising domestic demand, gas from Turkmenistan and Russia both pass through its territory. Oil and gas do not form a single operational system, but together they show that China’s energy connection with Kazakhstan extends beyond one commodity and beyond Kazakhstan’s own barrels. The Source Side May Be Growing In this context, the reported discovery on the Zhylyoi carbonate platform makes a difference because it widens the source side of the relationship without changing present flows. According to public statements by KazMunayGas officials, the Karaton, Kazhygali, and Zhylyoi formation has resource potential of 4.7 billion metric tons of hydrocarbons, and the broader Zhylyoi carbonate reservoir may hold as much as 20 billion metric tons of oil equivalent. The field is onshore in...
