Accurate estimation of hydrocarbon volumes and reserves is a key activity for any oil and gas business. Asset volumes and reserve estimates are needed to make overall investment program decisions, individual project valuations and financial/tax decisions. Reserves estimates are also required to be reported to government regulators and investors/bankers under securities law. Reserve estimates are required during the life cycle of an hydrocarbon assets as follows: Exploration: Defining target for exploration requires estimate of undiscovered volumes Development: Planning and execution of project requires estimates of discovered and recoverable volumes Production: Managing producing operations to achieve effective/efficient recovery requires constant monitoring/re-evaluation of remaining volume potential The objective of the course is to enhance awareness of the importance of accurate definition and determination of reserves for an oil and gas operator and provide guidelines/methodology to correctly categorize, estimate, manage and book reserves. During the short course, key features of the SPE PRMS, SEC guidelines and IOC practices will be illustrated using case studies from around the world. Also, typical management roles and responsibilities related to reserves processes will be described and key features of reserve estimation for Unconventional Resources will be summarized