Top 10 Companies in the United States Waste Oil Re-refining Market (2026): Market Leaders Powering the Circular Economy

MARKET INSIGHTS

The United States Waste Oil Re-refining market was valued at USD 1.23 billion in 2024 and is expected to expand to USD 1.83 billion by 2032, reflecting a compound annual growth rate of 5.2% between 2025 and 2032.

Waste oil re-refining converts used lubricating oils into high‑quality base stocks through distillation, hydrotreating, solvent extraction, and vacuum distillation. This process eliminates waste, conserves raw materials, and aligns with circular economy objectives in the petroleum sector.

In 2023, re‑refined oil production reached 750 million gallons, with automotive lubricants accounting for 55% of output. Collection rates rose 15% that year, driven by enhanced infrastructure, while industrial re‑refining grew at 7% annually. Capital spending on advanced hydrotreating increased 25% year‑over‑year, and government fleets adopted re‑refined oils at a 20% rate, underpinned by green procurement mandates. Leading players—Safety‑Kleen, Heritage‑Crystal Clean, Inc., and Vertex Energy—have intensified collection networks and blended product offerings, with capital allocation up 30% to support capacity and efficiency gains.

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Top 10 Companies in the United States Waste Oil Re-refining Market (2026)

10️⃣ 1. Safety‑Kleen

Headquarters: Irving, Texas, USA
Key Offering: Nationwide collection network, hydrotreating‑enabled base oils for automotive and industrial lubricants

Safety‑Kleen operates the largest used‑oil collection system in the country, integrating on‑site treatment with state‑of‑the‑art hydrotreating units that deliver Group II and III base oils meeting OEM specifications. The company’s focus on supply‑chain transparency and data analytics has streamlined logistics, reduced contamination, and lowered transportation costs for end‑users.

In line with sustainability imperatives, Safety‑Kleen has rolled out carbon‑neutral collection routes and a digital platform that tracks oil lifecycle metrics. The firm’s recent investment in solvent‑extraction technology is set to boost yield and broaden product grades, positioning it as a preferred partner for fleet operators and lubricant blenders.

• Nationwide collection network covering 2,000+ service centers
• Hydrotreating capacity of 200 million gallons per year
• Carbon‑neutral logistics program
• Partnerships with OEMs for blended high‑performance oils

9️⃣ 2. Heritage‑Crystal Clean, Inc.

Headquarters: Houston, Texas, USA
Key Offering: Regional collection hubs, advanced hydrotreating, and specialty base oils for industrial applications

Heritage‑Crystal Clean specializes in high‑volume feedstock acquisition from industrial plants and automotive service centers across the Gulf Coast. Its proprietary hydrotreating process removes metals and sulfur, producing Group II base oils that match or exceed virgin oil performance.

Strategic expansion into the Midwest has enabled the company to tap into a growing demand for sustainable lubricants among manufacturing and heavy‑equipment operators. Heritage‑Crystal Clean’s integration of real‑time inventory management has reduced lead times and increased customer satisfaction.

• Regional hubs in Texas, Louisiana, and Oklahoma
• Hydrotreating capacity of 80 million gallons per year
• Specialty base oils for high‑temperature industrial use
• Real‑time logistics dashboard for customers

8️⃣ 3. Vertex Energy

Headquarters: Houston, Texas, USA
Key Offering: Re‑refining assets acquisition, blended base stocks, and integrated supply‑chain solutions

Vertex Energy has positioned itself as a strategic challenger by acquiring re‑refining facilities in key locations and partnering with virgin oil producers. The company’s blended base stocks deliver consistent performance across automotive and industrial segments, while its flexible contract terms attract mid‑market customers.

Vertex Energy’s investment in energy‑efficient hydrotreating units is expected to reduce operating costs by 10% and improve environmental performance, aligning with the broader industry push toward lower emissions.

• Acquired 3 re‑refining plants in Texas, Louisiana, and Oklahoma
• Blended base stocks for automotive and industrial lubricants
• Energy‑efficient hydrotreating technology
• Flexible pricing models for mid‑market customers

7️⃣ 4. Clean Harbors, Inc.

Headquarters: Houston, Texas, USA
Key Offering: Integrated environmental services, including waste‑oil collection, treatment, and disposal

Clean Harbors, the parent of Safety‑Kleen, offers a full spectrum of environmental services that support the waste‑oil supply chain. Its focus on regulatory compliance and process optimization ensures that collected oils meet stringent quality thresholds before re‑refining.

By leveraging its global logistics network, Clean Harbors reduces transportation bottlenecks and provides real‑time tracking for customers, enhancing trust and operational efficiency.

• Global environmental services portfolio
• Robust compliance framework for EPA regulations
• Real‑time logistics and tracking platform
• Integrated waste‑management solutions

6️⃣ 5. Valicor Environmental Services

Headquarters: Houston, Texas, USA
Key Offering: Regional collection services, solvent extraction, and waste‑oil treatment for industrial clients

Valicor focuses on serving industrial generators with tailored collection schedules and on‑site pre‑treatment to reduce contaminants. The company’s solvent extraction process improves base‑oil yield, enabling it to supply high‑grade lubricants to manufacturing plants.

Valicor’s commitment to continuous improvement is evident in its investment in process‑analytics software that predicts feedstock quality and optimizes treatment cycles.

• Regional collection network in Texas and Oklahoma
• Solvent extraction technology for higher yield
• Process‑analytics platform for feedstock optimization
• Dedicated industrial client support team

5️⃣ 6. Avista Oil

Headquarters: Houston, Texas, USA
Key Offering: Re‑refining of automotive and industrial oils with a focus on sustainability

Avista Oil specializes in converting used motor oils into high‑performance base stocks. The company’s emphasis on sustainability is reflected in its zero‑waste policy and use of renewable energy sources for its facilities.

Avista’s collaboration with automotive OEMs has led to the development of proprietary blends that meet the evolving specifications of next‑generation vehicles.

• Automotive re‑refining capacity of 50 million gallons per year
• Zero‑waste policy and renewable energy usage
• OEM‑specific blended base oils
• Dedicated sustainability reporting

4️⃣ 7. Emerald Services

Headquarters: Houston, Texas, USA
Key Offering: Collection logistics, pre‑treatment, and hydrotreating for industrial feedstocks

Emerald Services has built a reputation for reliable logistics and high‑quality pre‑treatment. Its hydrotreating units are designed for energy efficiency, reducing operational costs while maintaining product quality.

Emerald’s focus on data‑driven decision making has improved route optimization and reduced transportation time by 15% across its network.

• Logistics network covering Texas, Louisiana, and Oklahoma
• Energy‑efficient hydrotreating technology
• Route optimization through data analytics
• High‑quality pre‑treatment services

3️⃣ 8. Universal Environmental Services

Headquarters: Houston, Texas, USA
Key Offering: Comprehensive waste‑oil management, including collection, transport, and re‑refining

Universal Environmental Services offers an integrated approach that streamlines the entire waste‑oil lifecycle. Its focus on regulatory compliance and operational efficiency ensures that collected oils reach re‑refining plants in optimal condition.

By partnering with local municipalities, Universal has expanded its collection footprint, supporting public‑sector fleets that prioritize recycled lubricants.

• Integrated collection and transport services
• Compliance with EPA and state regulations
• Partnerships with municipal fleets
• End‑to‑end waste‑oil management solutions

2️⃣ 9. Purdue Oil

Headquarters: Dallas, Texas, USA
Key Offering: Advanced solvent extraction and hydrotreating for high‑grade base oils

Purdue Oil has positioned itself as a niche provider of specialty base oils, leveraging advanced solvent extraction to remove stubborn contaminants. The company’s hydrotreating process is optimized for high‑temperature applications, making it attractive to the heavy‑industry sector.

Purdue’s investment in renewable energy for its processing facilities underlines its commitment to sustainability and reduces its carbon footprint.

• Specialty base oils for high‑temperature industrial use
• Advanced solvent extraction technology
• Renewable energy‑powered processing units
• Strategic partnerships with heavy‑industry manufacturers

1️⃣ 10. Petro‑Recycling Solutions

Headquarters: Tulsa, Oklahoma, USA
Key Offering: End‑to‑end recycling services, including collection, pre‑treatment, and hydrotreating

Petro‑Recycling Solutions offers a fully integrated recycling chain that reduces the need for external logistics. Its focus on process optimization has increased base‑oil yield by 12% over the past two years.

The company’s sustainability program includes carbon offset initiatives and community engagement, strengthening its brand among environmentally conscious clients.

• End‑to‑end recycling chain with in‑house logistics
• 12% increase in base‑oil yield through process optimization
• Carbon offset and community engagement programs
• Targeted solutions for automotive and industrial segments

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Market Outlook (2025‑2034)

Over the next decade, the United States Waste Oil Re‑refining market is projected to move from USD 1.29 billion in 2025 to USD 1.83 billion by 2034. The expansion reflects a steady rise in collection rates, enhanced technological adoption, and supportive regulatory frameworks that incentivize recycling. The following table summarizes the key milestones:

Year	Estimated Value (USD)
2025	1.29 billion
2026	1.35 billion
2034	1.83 billion

Future Trends

• Continued investment in energy‑efficient hydrotreating units, reducing operational costs and carbon emissions.
• Expansion of digital platforms that provide real‑time feedstock quality monitoring and logistics optimization.
• Increased collaboration between re‑refiners and OEMs to develop specialty blends for electric‑vehicle battery cooling and advanced manufacturing.
• Growth of regional collection hubs in the Midwest and Southeast, driven by rising industrial activity and supportive state policies.
• Emergence of bio‑based solvent extraction methods that further enhance contaminant removal and improve base‑oil purity.