The Global Oil Refining Auxiliary Market was valued at USD 6.85 Billion in 2025 and is projected to reach USD 10.12 Billion by 2034, growing at a Compound Annual Growth Rate (CAGR) of 4.1% during the forecast period (2025–2034). This growth is driven by the increasing global demand for refined petroleum products, the need to process heavier crude oil grades, and stringent environmental regulations mandating cleaner-burning fuels.

As refineries worldwide strive for greater operational efficiency and environmental compliance, the role of specialized chemical additives and auxiliary agents has become more critical than ever. In this blog, we profile the Top 10 Companies in the Oil Refining Auxiliary Industry—a group of chemical giants and specialized suppliers that are pioneering the formulations essential for modern, high-performance refining.

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🔟 1. BASF SE

Headquarters: Ludwigshafen, Germany
Key Offering: Antioxidants, Corrosion Inhibitors, Process Additives

BASF SE is a global leader in the chemical industry and a dominant force in the oil refining auxiliary market. The company provides a comprehensive portfolio of high-performance additives that protect refinery equipment, enhance fuel quality, and optimize complex refining processes. Their solutions are critical for meeting stringent fuel specifications and improving refinery yield.

Key Technological Initiatives:

• Development of multi-functional additive packages for fuel stability

• Advanced R&D in catalyst protection and fouling mitigation

• Commitment to sustainability through bio-based additive research

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9️⃣ 2. Clariant AG

Headquarters: Muttenz, Switzerland
Key Offering: Specialty Catalysts, Additives, Absorbents

Clariant AG specializes in tailor-made solutions for the refining industry, with a strong focus on catalysts and functional additives. Their products are designed to maximize efficiency in key refining units like Fluid Catalytic Cracking (FCC) and hydrotreating, helping clients achieve higher throughput and better product quality.

Key Technological Initiatives:

• Innovation in high-performance refining catalysts

• Focus on solutions for ultra-low sulfur fuel production

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8️⃣ 3. The Dow Chemical Company

Headquarters: Midland, Michigan, USA
Key Offering: Solvents, Glycol-based Treating Agents, Antifoams

Dow provides essential chemicals used in gas treating, dehydration, and separation processes within refineries. Their glycol-based products are industry standards for natural gas sweetening and dehydration, ensuring the smooth operation of refinery auxiliary units.

Key Technological Initiatives:

• Advanced formulations for gas treating and purification

• Development of environmentally benign solvents

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7️⃣ 4. Evonik Industries AG

Headquarters: Essen, Germany
Key Offering: Precious Metal Catalysts, Silica-based Additives

Evonik is a key player in high-value auxiliary products, particularly in catalysis and performance materials. Their advanced catalysts are used in critical processes such as hydrogenation and reforming, contributing significantly to refinery efficiency and product upgrading.

Key Technological Initiatives:

• Leading-edge catalyst technology for cleaner fuels

• Investment in R&D for efficient hydrocarbon processing

Download FREE Sample Report: Oil Refining Auxiliary Market – View in Detailed Research Report

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6️⃣ 5. Solvay SA

Headquarters: Brussels, Belgium
Key Offering: Hydrogen Peroxide, Specialty Polymers, Surfactants

Solvay supplies critical chemicals used in desulfurization and other treatment processes. Their hydrogen peroxide is extensively used in oxidative desulfurization technologies, providing refineries with an effective method to produce low-sulfur fuels.

Key Technological Initiatives:

• Expansion of hydrogen peroxide applications in refining

• Development of sustainable chemical solutions

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5️⃣ 6. Huntsman Corporation

Headquarters: The Woodlands, Texas, USA
Key Offering: Amine-based Treating Agents, Specialty Chemicals

Huntsman Corporation is a major supplier of amine-based solvents crucial for acid gas removal in refineries. Their technologies help remove hydrogen sulfide and carbon dioxide from process streams, which is essential for both operational safety and environmental compliance.

Key Technological Initiatives:

• Advanced amine formulations for high-efficiency gas treating

• Focus on reducing energy consumption in treatment units

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4️⃣ 7. Baker Hughes Company

Headquarters: Houston, Texas, USA
Key Offering: Process Chemicals, Digital Solutions, Catalyst Technologies

Baker Hughes offers an integrated portfolio of chemical solutions and digital technologies for refinery optimization. Their expertise spans antifoulants, corrosion inhibitors, and process treatments, supported by data-driven monitoring services to maximize asset reliability.

Key Technological Initiatives:

• Integration of digital twins for predictive maintenance

• Development of comprehensive chemical management programs

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3️⃣ 8. Johnson Matthey

Headquarters: London, United Kingdom
Key Offering: Refining Catalysts, Hydrogen Technology, Precious Metal Services

Johnson Matthey is a world leader in catalysis, providing sophisticated catalyst systems for virtually every major refining process. Their technologies enable refiners to convert heavy residues into valuable products and produce cleaner fuels efficiently.

Key Technological Initiatives:

• Pioneering technologies for renewable fuel production

• Leadership in hydrogen and syngas catalysts

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2️⃣ 9. Innospec Inc.

Headquarters: Englewood, Colorado, USA
Key Offering: Fuel Specialties, Oilfield Chemicals, Performance Chemicals

Innospec specializes in high-performance chemicals designed to enhance fuel properties and protect refining assets. Their fuel additives improve stability, cleanliness, and performance of finished products like gasoline and diesel.

Key Technological Initiatives:

• Innovation in detergent and dispersant technology for fuels

• Tailored solutions for specific refinery challenges

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1️⃣ 10. Chevron Phillips Chemical Company LLC

Headquarters: The Woodlands, Texas, USA
Key Offering: Specialty Chemicals, Solvents, Petrochemicals

Chevron Phillips Chemical produces a range of chemicals that serve as intermediates and additives in refining operations. Their products are integral to various processes, including extraction, treatment, and purification within the refinery value chain.

Key Technological Initiatives:

• Investment in high-purity chemical production

• Focus on reliability and supply chain excellence

Get Full Report Here: Oil Refining Auxiliary Market – View in Detailed Research Report

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🏭 Outlook: The Future of Oil Refining Auxiliaries is Smarter and Greener

The oil refining auxiliary market is undergoing a significant transformation. While traditional additives remain essential, the industry is rapidly adopting digital technologies and sustainable formulations to meet evolving operational and environmental demands.

📈 Key Trends Shaping the Market:

• Accelerated adoption of digital monitoring and predictive maintenance for chemical treatment programs

• Growing demand for multifunctional additives that deliver multiple benefits from a single product

• Increased R&D in bio-based and environmentally compatible auxiliary chemicals

• Strategic partnerships between chemical suppliers and refiners to develop customized solutions

Get Full Report Here: Oil Refining Auxiliary Market – View in Detailed Research Report

The companies profiled above are not only supporting global refinery operations—they are at the forefront of developing the innovative solutions required for the refining industry’s sustainable future.