Despite being early adopters of emerging technologies such as high-performance computing, oil and gas companies have until recently remained wary of cloud applications. This is now starting to change, with increasing numbers of organisations seizing time- and cost-based advantages by using cloud-based enterprise resource planning (ERP) systems as part of their two-tier ERP system strategies. Adding the cloud into the ERP mix makes systems very flexible, allowing companies to adapt and change in a way that does not affect either efficiency or profitability.