Calumet Specialty Products Partners acquired substantially all assets of drilling fluids firm Specialty Oilfield Solutions for $30 million cash. Lube distributor RelaDyne purchased Turbo Filtration, which specializes in flushing turbine and compressor oils. Solazyme and AkzoNobel renewed their partnership to include surfactant development efforts that could lead to an agreement to supply up to 10,000 metric tons per year of algal oils.