x) In the case of oxygenate that is added by a person other than the refiner or importer under ??80.101(d)(4)(ii)(B), documents that support the volume of oxygenate claimed by the refiner or importer, including the contract with the oxygenate blender and records relating to the audits, sampling and testing, and inspections of the oxygenate blender operation.(xi) In the case of blendstocks that are