We had announced that you can try running Oracle software on Windows Azure as it was in "Preview" (Ref : http://blogs.msdn.com/b/farukcelik/archive/2013/10/16/we-re-happy-to-run-your-oracle-software-weblogic-oracle-database-java-in-our-public-cloud-windows-azure.aspx) .
During the preview period, there has been no charge for the included Oracle licenses. If you have been running virtual machines based on these “license included” images, you have been charged only for the Windows Azure compute and storage resources that your virtual machines consumed. Starting March 12, 2014, these images will enter general availability. At that time, the price will change to reflect the included Oracle software licenses. Please check http://www.windowsazure.com/en-us/pricing/details/virtual-machines/#oracle-software for pricing details.
Our landing page for running Oracle software on Windows Azure is here : http://www.windowsazure.com/en-us/campaigns/oracle/