Helpful oil companies

CHANGES IN THE OPERATIONAL EFFICIENCY OF NATIONAL OIL COMPANIES by

Using data on 61 oil companies from 2001-09, we examine the evolution of revenue efficiency of National Oil Companies (NOCs) and shareholder-owned oil companies (SOCs). We find that NOCs generally are less efficient than SOCs, but their efficiency increased faster over the last decade. We also find evidence that partial privatizations increase operational efficiency, and (weaker) evidence that ...

National Oil Companies : Good or Bad ? A Literature Survey

Privatising national oil companies: Assessing the impact on firm performance

This study empirically investigates the impact of privatisation on firm performance in the global oil and gas industry, where questions of resource control have regained widespread attention. Using a dataset of 60 public share offerings by 28 National Oil Companies it is shown that privatisation is associated with comprehensive and sustained improvements in performance and efficiency. Over the ...

Authorized access: uncovering insider threats within oil and gas companies

Global State Considered Helpful

Reynolds’ view of a storage cell as an expression-acceptor pair has been widely used by researchers. We present a different way of organizing semantics of state, and in particular game semantics, by adding to typing contexts a zone for global state. This has the following advantages. Firstly, it causes the “good variable” equations for references to be validated, and also the noninterference eq...