Indonesia has been facing a serious challenge in meeting its oil and gas demands. Indonesia's domestic consumption continues to grow, while oil and gas reserves are depleting. As non- renewable sources, their supplies will always be limited. Therefore. optimizing the productivity of current reservoirs is a good alternative besides finding new reservoirs through field exploration. In order to maximize energy production, rocks‘ petrophysical properties are important in determining the characterization of reservoirs. Reservoir characterization is important for mapping further development of oil and gas fields. This book. Petrophysical Characteristics of Some Indonesian Reservoir Rocks, is the authoritative guide on the petrophysical properties of rocks and reservoirs in Indonesia. As the only primary sources of petrophysical properties of Indonesian rocks, the book will be an invaluable asset for the future of Indonesia's energy stability.