Shandong refining in July large-scale centralized maintenance: more than 7 announced parking, involving production capacity of more than 50 million tons, triple reasons superimposed triggered a rare shutdown tide.

As of early July 2026, a large area of centralized maintenance and parking has occurred in Shandong local refineries in China. Incomplete statistics show that more than 7 enterprises have announced maintenance, involving more than 50 million tons of normal decompression capacity. This centralized shutdown has changed the practice of previous years. The large scale and time concentration are rare in recent years, and the impact on the refined oil market and the chemical industry chain cannot be ignored.

Three reasons superposition: why did it happen in July

understanding the causes of this shutdown wave requires a comprehensive interpretation of the three dimensions of economy, policy and season.

The first reason is that refining continues to lose money, and it is more cost-effective to stop work than to start work. In 2026, international crude oil prices rose first and then fell-hitting a maximum of US $120/barrel in the first half of the year, and then fell sharply to about US $70/barrel as the Middle East geopolitical conflict eased, a cumulative decline of more than 41%. High-priced raw materials were put into storage in the early stage and refined oil products were shipped at low prices in the late stage, resulting in serious upside-down refining profits. According to incomplete statistics, the average loss of Shandong refining in China from January to June 2026 exceeded 5.8 per cent, and it is a common phenomenon that "one ton of processing is lost by one ton. In this context, downtime maintenance can not only avoid continued losses, but also digest high inventory, which has become a rational choice for enterprises.

The second reason is the lifting of policy constraints and the centralized release of backlog maintenance plans. From the end of 2025 to April 2026, affected by shipping tensions in the Middle East, Chinese regulators require refineries to maintain high start-ups and supply, strictly control production cuts and arbitrary maintenance, and violations will cut crude oil import quotas. After the resumption of navigation in the Strait of Hormuz in late May, the supply risk eased, and many refineries concentrated on applying for a negative reduction. At the beginning of June, the lower limit of processing volume assessment was lowered to 80% of the same period last year. The state no longer forced high construction, and the long-standing maintenance plan was released in a concentrated manner, forming a rare large-scale shutdown tide. Policy loosening is the core institutional reason for the abnormal concentration of the scale of the current round of shutdown.

The third reason is to actively avoid the dislocation of the peak season, synchronous to the library buck. In previous years, the maintenance was concentrated in March to May after the Spring Festival, which highly overlapped with the peak season of spring ploughing and infrastructure diesel, and the matching of supply and demand was out of balance. The extension to June, spring ploughing has ended, engineering infrastructure construction started flat, summer harvest agricultural oil only short-term support, diesel consumption overall decline, maintenance on the market impact is relatively controllable. At the same time, the inventory of refined gasoline, diesel, naphtha and liquefied gas in Shandong province of China is at a high level in the year, and the warehouse capacity is tight. taking the initiative to stop production and ship to the warehouse and release the pressure of funds are also important reasons.

Triple industrial chain impact: short-term pattern reconstruction, long-term transformation accelerated.

The first impact is the restructuring of the domestic refining supply and demand pattern, the main refinery share increased. China's Shandong refining accounts for nearly 17% of the country's total refining capacity, concentrated parking so that the total domestic crude oil processing volume shrank significantly, crude oil imports fell in the second quarter, local refineries generally reduce crude oil procurement, on-demand replenishment, the weakening of demand for raw materials to suppress international crude oil prices. Supply-side gasoline and diesel, naphtha, liquefied gas output decreased significantly, high inventory pressure of refined oil is expected to ease, the main refineries take the opportunity to fill the supply gap, market share further increased. For relevant traders, the expansion of regional price differentials and the adjustment of refined oil circulation structure brought about by this pattern switch are short-term arbitrage windows worthy of attention.

The second impact is to expose the short board of a single refining model, forcing the transformation to speed up. The core root cause of this round of losses is: pure refining-type refining lack of chemical hedging mechanism, oil prices once fluctuations that fall into a full-line loss. In contrast, the integrated refinery relies on polyolefins, aromatics and other chemicals to make stable profits, and the operating rate remains stable. This concentrated loss is a profound market education, which will accelerate the transformation of refining to the direction of integration, scale and low refined oil output, and the structural differentiation and integration of China's Shandong refining industry will continue to accelerate.

The third impact is that the short-term circulation pattern of refined oil is expected to be reconstructed. The shutdown led to the contraction of regional supply, the expansion of regional price differences, the increase of local refining export operations, and the optimization pressure on the circulation and export mechanism of refined oil products, which brought some disturbance to the overall trade pattern of refined oil products.

Comprehensive judgment: unconventional events, but long-term signals deserve high attention

this centralized overhaul is an unconventional manifestation of the dual disturbance of geopolitical conflicts and policy constraints, and does not represent a long-term trend change. In the short term, this round of centralized maintenance will help repair the balance of supply and demand and achieve off-season market support; in the long term, it is a clear signal that the living space of a single refining model is systematically narrowing, and integrated transformation is the only sustainable way out for local refineries in China. For overseas suppliers and traders, the continuous evolution of China's Shandong refining supply structure is an important benchmark variable for judging the medium-and long-term trend of China's refined oil and chemical raw material import and export pattern.