| Business Trends It is estimated that global refiners spend more than $50 B/yr on reliability-focused activities, primarily between routine maintenance efforts and turnaround programs. Suboptimal approaches to reliability can cost refiners around the world $5 B/yr-$15 B/yr. This month's Business Trends examines the connection between reliability and economics, along with several techniques refiners can implement to optimize reliability, spending and reliable performance to minimize risks and maximize profits. View of towers at OMV's Burghausen refinery in Germany. Photo courtesy of OMV Group.