The typical oil and gas reservoir life cycle comprises phases from discovery and field development, through production (and often further development) through field abandonment. Effective management of this cycle encompasses objectives to maximise recovery and optimise costs, while delivery high quality timely solutions with minimal uncertainties, risks, and environmental impact. These can be achieved through modern Reservoir Management Practices (RMP) that involve synergistic multidisciplinary work teams, application of best practices and continuous improvement, utilisation of efficient and fit-for-purpose tools, streamlining of operations, continuous enhancement of competencies of work force and integration of new, innovative, and efficient technologies. The implementation of these technologies and practices should be metric-driven and measurable through judiciously selected key performance indices (KPI) and success factors. It is intended with this workshop to elaborate and capture the advances in the modern and proven Reservoir Life Cycle Management (RLCM) techniques as applied to new field discoveries as well as existing fields and mature fields where significant value capture remains yet demands proper change management in order to be fully realised. Selected field case studies will present best practices, efficient use of current technologies, decision-making techniques, and lessons learnt.