American Association Of Petroleum Engineers (AAPG)Founded in 1917, we are the world"s largest professional geological society, with over 30,000 members.We are a pillar of the world-wide scientific community. Our books foster scientific research, advance the science of geology and promote the most effective use of petroleum extraction & processing technology and practice.Some of the areas we publish in include:GISPetroleum EngineeringWell Log AnalysisGeological ModelingCarbonate PetrologySeismic ImagingReservoir CharacterizationRegional Petroleum Analysis