We are a global oilfield products company, serving the drilling, subsea, completions, production and infrastructure sectors of the oil and natural gas industry. We design, manufacture and distribute products and engage in aftermarket services, parts supply and related services that complement our product offering. Our product offering includes a mix of frequently replaced consumable products and highly engineered capital products that are used in the exploration, development, production and transportation of oil and natural gas. Our consumable products are used in drilling, well construction and completions activities, within the supporting infrastructure, and at processing centers and refineries. Our engineered capital products are directed at: drilling rig equipment for new rigs, upgrades and refurbishment projects; subsea construction and development projects; the placement of production equipment on new producing wells; pressure pumping equipment; and downstream capital projects. In 2018, approximately 80% of our revenue was derived from consumable products and activity-based equipment, while the balance was primarily derived from capital products with a small amount from rental and other services.
We seek to design, manufacture and supply reliable high quality products that create value for our diverse customer base, which includes, among others, oil and natural gas operators, land and offshore drilling contractors, oilfield service companies, subsea construction and service companies, and pipeline and refinery operators.
We operate three business segments that cover all stages of the well cycle, Drilling & Subsea, Completions, and Production & Infrastructure. We incorporate by reference the segment and geographic information for the last three years set forth in Note 16 Business Segments and the information with respect to acquisitions set forth in Note 4 Acquisitions & Dispositions.