In 2008, the IOGP-Ipieca Health Committee published IOGP Report 393 - Health Performance Indicators – a guide for the oil and gas industry. The principles described in Report 393 were used to develop two tools which could be used to: • assess health performance within individual companies • compare performance between different parts of a company and between participating companies The health performance indicators are leading indicators. The process involves a self-assessment of the company’s performance in relation to standardized statements about the level of implementation of the company’s own health management systems. The participating companies perform this self-assessment on the scope of their operational activities; therefore, there is no separation between upstream and downstream operations.