Burckhardt Compression and ExxonMobil signed a global lubricants collaboration agreement for cylinder lubrication oil and related services for operators of reciprocating compressors. The companies will provide equipment and technical lubrication services, performed globally by each companies field engineering teams, including training in products and lubrication best practices, lubricant analysis, equipment troubleshooting and maintenance support. United Kingdom-based Hydrodec Group plcs transformer oil rerefining technology patent was extended to Europe, the company announced. The patent covers design and process improvements made to the rerefining process since 2009.