Calumet Specialty Products Partners L.P. closed on the $84 million sale of Anchor Drilling Fluids USA LLC of Tulsa, Oklahoma, to QMax America Inc., a subsidiary of QMax Solutions Inc. Calumet acquired the drilling fluids company in March 2014. Fall River, Massachusetts-based Triboscience & Engineering Inc. acquired Opus Tertiums G-Lube specialty lubricants business in Dallas, Texas, which focuses on synthetics for transportation and general industry.