Decoding Bunker Fuel Pricing: A Comprehensive Analysis of Residual Oil Valuation

This article provides a detailed breakdown of bunker fuel, focusing on its production, global and Chinese market dynamics, and the underlying logic of residual oil pricing.

**Product and Production** Bunker fuel is a heavy residual product from crude oil refining, characterized by high viscosity and impurities. Since 2020, low-sulfur fuel oil (LSFO) has become the mainstream product. It is primarily produced through the distillation of low-sulfur crude, blending low-sulfur residues with high-sulfur fuel oil, or desulfurizing high-sulfur residual oil.

**Global Supply and Demand Landscape** Global annual production stands at approximately 500 million tons. The Asia-Pacific region accounts for over 45% of consumption, making it the largest bunker fuel market. Singapore is the world's largest consumption hub and distribution center. Key supply flows converge in Singapore from Europe & America, the Middle East, and Latin America.

**China's Supply and Demand Landscape** In 2025, China's production was 41.928 million tons, apparent consumption was 42.9 million tons, and imports totaled 21.61 million tons. The core demand is for bonded bunker fuel for ships. Refining and chemical processing demand is concentrated among independent refineries in Shandong, while industrial and power generation demand is shrinking. China's LSFO production capacity reached 33.15 million tons, dominated by Petrochina Company Limited and China Petroleum & Chemical Corporation. The Bohai Bay region holds the largest share of this capacity.

**Pricing and Cost Drivers** International pricing is anchored to the Singapore Mean of Platts Singapore (MOPS) benchmark, with an active paper market. Futures trade on a bonded, tax-exclusive basis. Import costs are calculated based on MOPS plus a premium and applicable taxes. Prices are driven by crude oil costs, shipping activity, Singapore's supply-demand balance, environmental regulations, and exchange rates.

**1. Product Characteristics and Production Processes** Bunker fuel is the heaviest residual product from crude oil after gasoline, kerosene, and diesel are separated. It is primarily made from cracked and straight-run residues. Its key characteristics are high viscosity and high content of non-hydrocarbon compounds, resins, and asphaltenes. Quality depends heavily on crude type, processing technology, and refining depth. End-use is concentrated in refining/petrochemicals, transportation, construction, and metallurgy, with steady growth in the marine bunker market.

Since 2020, LSFO has become dominant. Production methods include: direct distillation of low-sulfur crude; blending low-sulfur residues with high-sulfur heavy fuel oil; and desulfurizing high-sulfur residues in processing units.

**2. Global Bunker Fuel Supply-Demand Structure** Major production regions include the Middle East, South America, Russia, and China. Annual production is about 500 million tons, with 300-400 million tons traded on the open market. Recent global marine fuel consumption is around 280 million tons. The Asia-Pacific market is the fastest-growing, accounting for over 45% of consumption.

The four major global bunkering markets are: - Asia: Singapore, China, Japan, South Korea. - Europe ARA: Amsterdam, Rotterdam, Antwerp. - Mediterranean: Centered on Fujairah. - Americas: U.S. East Coast.

Key trade flows of high-sulfur fuel oil are from Europe to Singapore and the U.S. Gulf; from the Middle East to Singapore and Northeast Asia; and from the U.S. Gulf, Mexico, and Latin America to Singapore and Northeast Asia. Singapore, as the top consumption and distribution hub, attracts global oil companies and traders. Fuel oil components from various regions flow to Singapore for blending before being sold to end-users.

**3. China's Bunker Fuel Supply-Demand Structure** **2025 Production, Consumption, and Trade Data:** - Production: 41.928 million tons, down 2.56% year-on-year. - Imports: 21.61 million tons, down 26.09% year-on-year. - Exports: 20.47 million tons, up 0.99% year-on-year. - Apparent Consumption: 42.9 million tons, down 18.53% year-on-year.

**Bonded Marine Fuel Segment:** - Domestic bonded LSFO production: 12.593 million tons, down 3.13% year-on-year. - Bonded marine fuel imports: 7.05 million tons, up 16.72% year-on-year. - Bonded marine fuel exports: 20.3691 million tons, up 3.75% year-on-year. - Bunkering volume: 20.3583 million tons, up 2.38% year-on-year.

**Regional Supply Structure:** Shandong is the largest and most concentrated supply province, where independent refineries in cities like Dongying, Zibo, and Binzhou import large quantities of straight-run fuel oil as deep-processing feedstock, making it a key blending center. The Bohai Rim region, with ports like Dalian and Yingkou and refineries, is also a core supply area. Supply in East and South China is relatively smaller, serving as supplementary sources.

**Demand Structure Characteristics:** - Marine Bunker Demand: Bonded marine fuel is the largest consumption segment. Demand is distributed across major coastal ports in the Bohai Rim, Shandong, East China, and South China. Domestic marine oil demand is concentrated in the Bohai Rim and East China, with shipowners preferring to purchase in low-price regions. - Refining and Deep-Processing Demand: Mainly concentrated in Shandong's independent refineries, using straight-run fuel oil as feedstock. - Industrial and Power Generation Fuel: Demand in this sector continues to shrink due to stricter environmental regulations.

**LSFO Capacity Development:** To comply with the IMO 2020 global sulfur cap, domestic groups have actively expanded capacity. From 2021 to 2025, China's LSFO capacity grew from 20.15 million tons to 33.15 million tons, with a compound annual growth rate of 13.5%.

**Major Enterprise Capacity Layout:** - SINOPEC CORP: Deployed across ten coastal refineries. Initial capacity was 10 million tons/year, reaching 15 million tons by 2023 with no significant expansion since. - PETROCHINA: Deployed across 8+1 coastal refineries. Capacity grew from an initial 4 million tons/year to over 12 million tons by 2024. Refineries like Liaohua and Dagang, processing low-sulfur crude, have flexible capacity. - CNOOC: Capacity increased from 2.2 million to 3.6 million tons. - Sinochem and private refiner Zhejiang Petrochemical: Showed low production enthusiasm, with no capacity expansion in recent years.

In 2025, capacity across groups showed no major fluctuations. However, capacity could expand further if policies relax, export quotas are allocated to more companies, or private enterprises increase participation.

**2025 Regional Capacity Distribution:** - Bohai Bay Region: Accounts for 42.2% of capacity, serving northern ports like Tianjin, Qingdao, and Dalian. Petrochina Company Limited is the main force, responsible for transferring oil from north to south; China Petroleum & Chemical Corporation's Shandong refineries are important supplements. - Yangtze River Delta: Core supply region, accounting for 28.2% of capacity. Centered on Ningbo-Zhoushan Port and Shanghai Port, it hosts production bases of SINOPEC CORP and CNOOC, making it the most competitive market. - Pearl River Delta: Important supply guarantee region, accounting for 28.2% of capacity, serving the Greater Bay Area and southwestern ports, interacting with the Singapore market. - Inland Regions: Strategic supplementary areas, with an overall low share. Refineries like Jiujiang and Hunan support coastal areas through logistics networks.

**Drivers of Import Volume Changes:** Total 2025 imports were 21.61 million tons. Key recent drivers: - 2021: Early stage of structural shift from marine fuel to refining feedstock. - 2022: Russia-Ukraine conflict disrupted trade patterns, reducing fuel oil demand; scaled domestic LSFO production replaced import demand for marine fuel. - 2023: Difficulty in clearing diluted bitumen led refineries to significantly increase fuel oil imports as supplementary feedstock; a structural shortage of crude oil quotas spurred a surge in imports by year-end. - 2024: Tight domestic supply and rigid refining demand kept imports at high levels. - 2025: Lower operating rates at independent refineries reduced feedstock demand; U.S. sanctions on Iran affecting Chinese refineries also disrupted import operations.

**4. International Bunker Fuel Pricing System** **Major Pricing Benchmarks:** International pricing is based on marine specifications, with active benchmarks in major resource and consumption areas: - Rotterdam: Platts Rotterdam Barges - U.S. Gulf: Platts USGC 3.0% No.6 - Mediterranean: MOP MED - Middle East: MOP AG - Far East: MOPS

**Singapore Market Pricing and Paper Market:** Singapore is the global pricing core. MOPS is an independent price determined by S&P Global Platts based on physical and paper bids, offers, and deals from major participants on its public price assessment system (PAGE190) between 16:00-16:30 daily. The Platts window publishes prices for delivery 15 days forward, aiming to form a transparent market price.

Since January 2019, Platts has published assessments for 0.5% sulfur LSFO. Previously, the market often referenced 10ppm diesel prices. Singapore also has an active over-the-counter (OTC) paper market, settled in cash against Singapore MOPS. Exchanges like ICE and CME list Singapore fuel oil swaps. Tradable products include 380CST, 180CST, 0.5% marine fuel, calendar spreads, viscosity spreads, and crack spreads.

**5. Core Factors Influencing Bunker Fuel Prices** **International Crude Oil Prices:** As a downstream product of crude oil, bunker fuel prices are highly correlated. After 2010, weak shipping markets caused fuel oil to persistently underperform crude. During the high-to-low sulfur transition, drastic changes in supply-demand structures temporarily reduced this correlation.

**Global Shipping Market:** Shipping is the largest end-use sector for bunker fuel. The Baltic Dry Index (BDI) shows a significant correlation with fuel oil prices. Shipping demand is profoundly affected by international politics, regional economies, and global trade flows.

**Singapore Market Supply and Demand:** As the world's largest consumption and distribution hub, the volume of arbitrage cargoes, sales, and inventory levels in Singapore directly impact pricing.

**Environmental Regulations:** The IMO 2020 sulfur cap has fundamentally altered consumption structures. Options like installing scrubbers or switching to LSFO, marine gasoil (MGO), or LNG have significantly increased costs and caused price volatility. Future adjustments to emission policies will have major impacts.

**Exchange Rate Factors:** International bunker fuel transactions are priced in U.S. dollars. Changes in the USD exchange rate directly affect the price of RMB-denominated LSFO futures.

**6. Import Cost Calculation and Futures Correlation** The low-sulfur fuel oil futures contract on the Shanghai International Energy Exchange (INE) adopts a "net price trading, bonded delivery, RMB denominated" model. The traded price is a net price excluding consumption tax, value-added tax (VAT), and import duty. China's imports of marine fuel are priced based on the Platts Singapore MOPS average.

**Bonded Import Cost Formula:** (MOPS Price + Premium) × Exchange Rate + Other Fees Other fees include: port dues, port facility security fees, agency fees, oil pollution fund, terminal handling charges, storage fees, inspection fees, etc.

**Cost for Domestic Market (after clearing customs) Formula:** [(MOPS Price + Premium) × Exchange Rate × (1 + Duty Rate) + Consumption Tax] × (1 + VAT Rate) + Other Fees Applicable tax rates: VAT rate 13%, import duty rate 1%, consumption tax RMB 1.2 per liter (approximately RMB 1,218 per ton).