Reliability is one major concern in the Oil and Gas industry to date. Reliability issues due to aging and increasing environmental loading are common for jacket platforms in Malaysia. Authors have studied system reliability assessment on existing jacket platforms in Malaysian waters and concluded that the current reliability assessment in the industry practice is tedious. The scope of the study includes regression analysis using three different methods to generate regression equation which could serve as a simplified reliability prediction model. Regression equations generated in this study seek to improve the current reliability assessment of jacket platforms in Malaysia by providing means for screening process before proceeding to tedious reliability analysis. © (2014) Trans Tech Publications, Switzerland.