• A leading oil and gas trading company.

    Welcome to Diamond Operating Inc. To be a global benchmark in oil and gas procurement by connecting credible buyers with reliable suppliers, upholding the highest standards of transparency, professionalism, and compliance in every transaction.
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  • Renewable Fuel Company for industries

    We deliver sustainable solutions and services to various industries within Europe and USA. Our partners and clients value us for the quality of our products.
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  • The future of energy is lower carbon

    Diamond Operating Inc. has always put people at the center of the energy conversation. Because we understand that the well-being of people everywhere depends on energy. Energy that is affordable, reliable and ever-cleaner.
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A high Quality Control in compliance with international standards

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About Our Industry

Founded in 2000, Diamond Operating Inc. is a leading oil and gas trading and procurement company headquartered in Boulder, Colorado, with a branch office in Houston. We operate with refinery partners across key global hubs including Rotterdam, Houston, Jurong, Fujairah, Zhoushan, Qingdao, and other major ports worldwide. Over the years, we have built a strong reputation for integrity, transparency, and execution in petroleum product sales and global supply chain coordination.

Our focus is on securing and delivering refined petroleum products through vetted channels with clearly defined seller procedures and no upfront financial demands. We serve end buyers, mandates, and intermediaries who are logistically and financiallyprepared to transact under real, verifiable conditions.

Diamond Operating Inc. is an energy company with expertise in the exploration, production, refining and marketing of oil and natural gas, and the manufacturing and marketing of chemicals. We use advanced technologies and take an innovative approach to help build a sustainable energy future. We also invest in power, including from low-carbon sources such as wind and solar; and new fuels for transport, such as advanced biofuels and hydrogen.

What our clients have to say

Discover the glowing reviews of our valued customers and gain insights into the exceptional services we provide.

Professional, thoughtful, fairly priced. Using a larger company has its benefits as their pricing is better than many local ones.

Lilli
Customer

The company is terrific. I have been dealing with them for 20 years and have never been disappointed. I highly recommend the company.

Laura
Business Owner

The service is fantastic. The service technicians are prompt and professional. Oil deliveries are on time and the office staff is a pleasure to work with. I would highly recommend Diamond Operating Inc!

John
Customer

Outstanding service!! A real pleasure to work with a company that treats its customers with respect and openness in their policies.

Philip
Customer

Our Approach

A hight level Quality Control in compliance with National and International regulations and standards.
Protecting the environment while providing affordable, reliable and ever-cleaner energy takes commitment supported by effective processes, leading technologies, and dedicated people. Our environmental and energy transition efforts focus on lowering the carbon intensity of our operations, building lower carbon businesses, supporting well-designed climate policy, responsible water management, and biodiversity, while using our Operational Excellence Management System to manage risk.
Advancing a lower carbon future

We work to deliver the energy the world needs
while protecting the environment.