Lime Rock Partners-backed Rod and Tubing Services, a provider of tubular and sucker rod inspection and integrity services, completed the merger with Amberjack Capital-backed Certus Energy Solutions, a provider of drill pipe inspection services, tubular thread technologies, and pipe and tool rental solutions. Financial terms were not disclosed. "I am excited to combine two great, technology-minded organizations to offer customers a single-source solution for tubular and sucker rod lifecycle management. The aggregate investment to buy, rent and maintain downhole tubulars is one of the largest costs over the life of a well. Our goal is to provide oil and gas companies with unprecedented tracking and performance data to help maximize their investment," Daniel Williams, Rod and Tubing Services CEO.