China's Teapot Refiners Face 'Feedstock Cliff' as Inventory Buffers Run Thin and Margins Squeeze

China's refiners are in a high-stakes race to maximize profits before the feedstock advantage fades. The setup is clear: record output, soaring fuel prices, and a massive import surge are fueling a powerful current run. In 2025, the country's refineries processed a new annual record of 14.81 million barrels per day. This momentum has carried into 2026, with capacity utilization rates of 71.3% in January and 73.2% in February, both above year-ago levels. Smaller, independent "teapot" refineries in Shandong are particularly active, with one major plant running at around 105% of its nameplate capacity.

The economic driver is a dramatic price spike. Since the Middle East conflict began in late February, domestic fuel prices have surged. Ex-factory diesel prices have jumped 37% from February 28, while gasoline prices are up 26%. This has created a powerful incentive for refiners to keep their units running to capture these elevated margins, especially in March.

To feed this high output, China has dramatically increased its crude oil imports. In the first two months of 2026, imports surged 15.8% year-on-year to an average of 11.99 million barrels per day. This record surge is directly tied to the strong refining throughput and a deliberate stockpiling push, with inventories rising by about 25 million barrels. The bulk of this increase came from discounted Russian and Iranian crude, as India reduced purchases and the Strait of Hormuz remains effectively shut, creating a window for cheaper feedstocks.

The bottom line is a perfect storm of activity. Refiners are running at near-record levels, capitalizing on a price rally, and importing record volumes of crude to sustain the operation. The current run is a direct response to a temporary but powerful market distortion.

The Feedstock Engine: Quotas, Inventories, and the Coming Shortfall

The teapots' current run is powered by cheap feedstock, but that fuel is running low. Their strategy hinges on two key sources: discounted pre-war crude and government quotas. For now, they are capitalizing on deeply discounted Iranian and Russian crude bought before the Middle East conflict, when benchmark Brent hovered around $73 a barrel. That advantage is now fading. New deliveries of these same sanctioned grades are being priced at a war-induced premium, directly eroding the margin advantage that drove the recent output surge. Government quotas provide the official license to import this discounted oil. Beijing has issued new 2026 allocations, with one major refiner receiving about 11 million metric tons across two batches, and a recent batch of roughly 8 million tons distributed to 21 refiners. However, these allocations may not be enough for the full year. In 2025, the first two batches covered a refiner's entire annual quota. This year, the same two batches are expected to cover only about 70% of a typical teapot's total allocation. The total 2026 quota for non-state-owned firms is set at 257 million tons, unchanged from last year, but the staggered release means refiners are operating on a tight leash.

Inventory builds have been the buffer. Record stockpiles of sanctioned crude, particularly Russian barrels, have accumulated in Shandong, the heart of the teapot industry. Nearly 15 million barrels of these discounted grades were added to inventories in December alone. This stockpile has allowed plants to maintain high output, with one major Shandong refiner running at around 105% of its nameplate capacity. Yet this buffer is expected to run thin. Industry sources indicate that as cheap feedstocks from these inventories are consumed, refiners may be forced to trim runs from late April onward. The combination of a premium-priced feedstock market and dwindling inventories creates a clear cliff ahead for the teapots' operational sustainability.

The Margin Pressure: Rising Costs and a Shifting Market

The current price surge is creating a false sense of security. While fuel prices have spiked, the underlying profitability for China's refiners is under multiple pressures. The most immediate threat is a supply shock that is already forcing operational cuts. Major Chinese refiners, including Zhejiang Petrochemical Corp (ZPC) and Fujian Refining and Petrochemical Co (FREP), have begun curtailing runs. ZPC brought forward a planned maintenance shutdown, cutting throughput by 20%, while FREP shut its smallest unit. These moves are a direct response to the Middle East conflict's impact on crude supply, which has effectively shut the Strait of Hormuz and disrupted term contracts. Industry sources suggest other Chinese refiners reliant on Middle East oil could trim runs by as much as 20%. This trend, if it spreads, will squeeze margins by reducing output just as feedstock costs rise.

Beyond this supply shock, a deeper structural shift is eroding the traditional fuel-refining model. The Chinese government's "Workplan for Stable Growth in the Petrochemical and Chemical Industry (2025-2026)" signals a clear pivot away from fuel production. The plan aims to phase out smaller refineries and cap total refining capacity, while simultaneously pushing for a surge in oil-to-chemicals output. This policy is a direct response to declining demand for diesel and other petrochemicals, driven by the rapid growth of the electric vehicle sector. In other words, the market that has powered the teapots' current run is shrinking, even as the government restricts the industry's ability to expand.

The financial outlook reflects this dual pressure. Market analysts are now confirming that tighter refining margins in 2026 will become all too real, especially for Asian refineries. Fitch Ratings notes that while some capacity exits and restrictions may eventually stabilize margins, the near-term path is one of persistent pressure. The combination of a premium-priced, disrupted feedstock market and a declining fuel demand base means the easy profits of the current surge are unlikely to last. The refiners' challenge is to navigate this cliff, shifting their operations before the government's capacity cap and the EV-driven demand collapse fully take effect.

Catalysts and Risks: What to Watch for the Teapot Strategy

The teapots' current strategy is a high-stakes gamble on timing. The primary catalyst for a change in course is clear: the exhaustion of discounted inventories from late April onward. Industry sources confirm that plants are currently capitalizing on pre-war crude stocks, but this buffer is expected to run thin. As these cheap feedstocks are consumed, refiners will be forced to either pay a war-induced premium for new deliveries or trim their runs. This inventory cliff is the most immediate pressure point, likely triggering a reduction in the key metric of operational intensity-the run rate.

A key risk is that this pressure doesn't stay isolated. The broader Asian refining sector could face a slowdown if Middle East supply issues persist. The conflict has already forced major Chinese refiners like Zhejiang Petrochemical Corp and Fujian Refining and Petrochemical to cut runs, with some sources suggesting other plants reliant on Middle East oil could trim output by as much as 20%. If this trend spreads, it would compress margins across the region, not just for the teapots. The current price surge for fuel is a temporary distortion; a sustained reduction in refining throughput would amplify the margin pressure that analysts already expect to persist in 2026.

Beyond these near-term events, the final allocation of 2026 quotas and any government policy shifts are critical watchpoints. The staggered release of quotas has created a tight leash, with the first two batches covering only about 70% of a typical teapot's annual allocation. The final batches, expected soon, will determine whether refiners can secure enough discounted crude to sustain operations through the summer. More broadly, the government's "Workplan for Stable Growth in the Petrochemical and Chemical Industry (2025-2026)" signals a long-term pivot away from fuel production. Any shift in policy that accelerates the phase-out of smaller refineries or alters the feedstock landscape for independents would fundamentally change the operating environment for the teapots.

The bottom line is that the teapots are racing against two clocks. One is the clock on their discounted inventories, set to run out in late April. The other is the clock on a changing market, where policy and demand are moving against them. Their ability to profit from the current high-run strategy hinges on navigating these pressures before the government's capacity cap and the EV-driven demand collapse fully take effect.