We committed to the growth and success of our Principals and Partners.

By Innovation we keep our customer to stay ahead in industry.

Helping our customers win with Expertise, Excellence and Service.

Enable our customers to excel in their business.

Creating sustainable value for our customer.

Featured Industries

DOSAS’ experienced Oil & Gas team has decades of experience in serving the customers in upstream, midstream and downstream. At DOSAS, we are working with a mindset to be a long term trusted advisor for our Customers, while fulfilling their needs for quality products with an efficient, reliable and always customer first focus.

Production Optimization Chemicals
Cementing Chemicals
Drilling & Speciality Fluids

Product & Services

DOSAS is a Netherlands based international company, managing complex supply chains for chemical manufacturers and technology providers, and their consumers, by simplifying market access to products and services. Our comprehensive portfolio of chemicals and technical consulting services provides precise, innovative and creative solutions to suit our customers' specific needs in the oil and gas industry, and adds significant value to their assets and development projects. DOSAS are committed to excellence in every aspect of our business to remain on top. To that end, we conduct all matters with the utmost degree of integrity and responsibility.


In an oilfield the oil is generally mixed with gas, production water and contaminants. In the oil treatment plant the gases, water, and contaminants are separated from the oil. Then the stabilized oil is ready to be shipped by oil tankers.

Gas Treatment Chemicals

The gas separated from the oil is gathered in a gas plant where it is dehydrated and processed to recover the heavy fractions and to remove sulphur compounds. The treated gas can then be transported by pipeline.

Drilling Fluids

Drilling Fluids (often referred to as Drilling Mud) fill many functions in the successful drilling and completion of an oil or gas well.

Cementing Chemicals

Cementing additives are used during and after the drilling function, when casing strings need to be cemented into the well bore.

Production Optimization Chemicals

The Production Optimization division consists of three sub-domains, which cover the different types of production optimisation treatments that DOSAS can provide: Stimulation, Remediation, and Prevention.

Production & Refinery chemicals

An oil refinery is an industrial process plant where crude oil is processed and refined into more useful products such as petroleum naphtha, gasoline, diesel fuel, asphalt base, heating oil,kerosene, and liquefied petroleum gas.


  • Environment, Safety and Health(ESH) and Quality

  • The work we do is driven by our commitment to sustainable development. We consistently are increasing our awareness of natural resource constraints, putting a new emphasis on resource productivity. We try to deliver growth with fewer resources and less environmental impact.

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  • Vison for suitability

  • From energy efficient operations and sustainable products to active engagement in communities across the globe, DOSAS knows first hand that sustainability is beneficial to our business, our customers, our communities and our world.

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  • Sustainability Framework

  • Our strategy is inspired by a newly defined core purpose. It forms the overarching vision for our five pillars for sustainability. Each of these pillars holds a number of objectives which we are working towards incorporating into our everyday activities.

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  • Reach

  • REACH is the European Union’s regulation for the Registration, Evaluation, Authorization and Restriction of Chemicals. Is one of the strongest regulatory changes ever to hit the chemical industry and affects the chemical industry and all consumers.

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Contact Us

Dutch Oilfield Supply and Services Headquarter