DNOW Megacenter

Welcome to our Megacenter, where you can find an unparalleled selection of top-quality pipe, valves and fittings (PVF) to meet all your industrial needs. But that's not all - we offer a comprehensive range of horizontal pump solutions, cutting-edge production equipment and much more. Explore our product inventory and affiliated DNOW brands at our Megacenter.

Williston’s Top Go-To Oilfield Solutions Provider

Your Source for Quality Pipe, Valves and Fittings (PVF), Horizontal Pump Solutions, Production Equipment and More

If you're in the Williston, North Dakota area and need a reliable and trusted oilfield solutions provider of pipe, valves, fittings, flanges, gaskets, fiberglass line pipe and tubing, horizontal pumping solutions, modular process skids or other oil field or industrial products, then look no further than DNOW's Megacenter, located at 5072 Owan Industrial Park Dr, Williston, ND 58801.

Our Megacenter is a single location combining our Pipe, Valves & Fittings + Supercenter and our affiliated brands (TS&M Supply Fiberglass, Flex Flow, Power Service and EcoVapor), making it a powerful hub for oilfield solutions in Williston, ND. As a leading provider of energy-related products and services - from pipeline products to tank battery processing equipment, we are dedicated to meeting the needs of the oil and gas industry and providing the best products, services, and safety solutions to our customers. Whether you need pipe, valves, fittings, horizontal pumping solutions or production equipment, DNOW's Megacenter is committed to providing everything you need. With our experienced team and reliable products, you can be sure you’ll get the best quality and service when working with us.

Location and Hours

Hours of Operation


7:00 AM - 5:00 PM


7:00 AM - 5:00 PM


7:00 AM - 5:00 PM


7:00 AM - 5:00 PM


7:00 AM - 5:00 PM





Contact Us

Stop by today or contact us and see why we are the leading supplier of oil field and industrial supplies in the region.

+1 (701) 572-3781

Get Directions
5072 Owan Industrial Park Dr
Williston, ND 58801

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Explore the Top Iconic Brands for Oil Field and Industrial Products and Services

When it comes to oil field and industrial products and services, you want to be sure that you are getting the highest quality products and services, expert staff and excellent customer service. Below you can explore the brands making up the core of our business and what products and services they offer. Whether you're looking for a specific component or a complete service package, these top iconic brands have you covered.

The Bakken leader for all your pipe, valves and fittings (PVF) needs

Are you looking for reliable PVF products for your Bakken pipeline projects? Look no further than DNOW PVF+ Supercenter! The ultimate solution for anyone looking to enhance their pipeline operations in the Bakken region. We can meet your needs with our range of high-quality pipe, valves, fittings, and other oilfield-related products. Our team of experts is always ready to offer personalized services to help streamline your operations and increase productivity. As a trustworthy PVF distributor, we will provide excellent customer service, timely deliveries, and technical support to help you manage all your projects quickly and confidently. Contact us today to learn more about how we can help you enhance your pipeline solutions in the Bakken region.

DNOW is a leading global stocking supplier of energy and industrial solutions, products, engineered equipment packages and supply chain services.

Reliable fiberglass piping solutions

TS&M Supply Fiberglass, A DNOW Company, is a leader in the oilfield piping industry, specializing in the installation, technical support, and supply of fiberglass piping. Our highly trained field technicians have the expertise and experience to properly install all types of composite pipe, from small-diameter to large-diameter fiberglass. We aim to ensure that you get the most out of your investment and that the installation process is as smooth and efficient as possible. To this end, our technical support team is available to advise and assist you in selecting the right fiberglass piping product for your particular needs and applications.

TS&M Supply Fiberglass Logo - TS&M Supply Fiberglass is a leading supplier of NOV Fiber Glass Systems products to oil & gas operators across Canada.

Your horizontal pumping ("H-Pump") solutions for fluid movement applications

Flex Flow, a DNOW Company, offers h-pump rental, sale, and service solutions. Our pumps are designed to provide efficient, cost-effective and reliable transfer of liquids for various applications. Our hydraulic jet pumps are renowned for their maximum efficiency, reliability and minimized operational costs. We have a team of knowledgeable engineers and technicians who are fully dedicated to providing the highest quality products and services that meet your specific requirements regarding fluid management. We aim to ensure you can rely on our pumps to provide the most reliable and cost-effective solutions for your application.

Flex Flow Logo - Flex Flow horizontal pump solutions provide flexibility to fit the needs of various fluid movement applications.

Engineering, fabrication and installation of modular process skids

Power Service, a DNOW Company, is a leader in the engineering, fabrication and installation of various types of modular process skids, rotating and process equipment and custom fabrication systems. Drawing on decades of experience and knowledge, our highly skilled engineers, fabricators and technicians can provide clients with the highest quality products and services tailored to your unique needs and requirements. Our team of experts can offer comprehensive solutions for any rotating and process equipment needs, no matter the size, complexity or scale of the project. Utilizing the best practices in the engineering and fabrication fields, Power Service is committed to delivering the best results for you and ensuring that your projects are completed with the utmost quality and efficiency.

Power Service Logo - Power Service provides engineering, design, installation, fabrication, distribution & service of rotating & processing equipment.

EcoVapor: Leading the way in biogas purification technology

EcoVapor, a DNOW Company, provides innovative emissions management technologies to help you achieve your environmental and financial sustainability goals. Our comprehensive solutions support carbon emission reduction and facilitate the transition to net-zero emissions. Whether in the oil and gas or the renewable natural gas (RNG) markets, our innovative offerings empower you to eliminate routine flaring, enhance safety and reduce emissions. Experience superior environmental performance, increased profitability and sustainable operations through our proven vapor capture and treatment solutions. Achieve cleaner, safer, more sustainable operations today.

EcoVapor Logo - EcoVapor has a suite of products that can help you reduce emissions and increase renewable natural gas (RNG) utilization.

Boost Your Operations with Top Products and Services

Streamlining your operations is crucial to ensuring the safety and efficiency of your exploration, development, and production processes. At DNOW, we understand the importance of having access to the best products and services to achieve these goals. From routine maintenance supplies to specialized equipment, we have everything you need to optimize your operations. To learn more about our product offerings, click on the links below.

Revolutionizing Your Shopping Experience

Our Williston, ND DNOW Megacenter provides the utmost convenience for customers wishing to purchase all their pipe, valves, and fittings in one place. With a wide selection of products from leading manufacturers, our knowledgeable staff is here to provide support and guidance throughout every step of the purchasing experience. Through our Megacenter, we're revolutionizing how customers can buy essential products, making everything easily accessible in one go. Come see us and learn what we can do for you.