As the global oil and gas industry enters an era dominated by mature fields, declining production, and increasing economic and environmental pressures, maximizing recovery has become one of the most critical challenges facing operators worldwide. Traditional approaches focused solely on drilling new wells or implementing isolated recovery technologies are no longer sufficient to unlock the remaining value trapped within aging reservoirs. Advanced Recovery Optimization presents a comprehensive framework for transforming mature asset performance through an integrated approach that combines reservoir engineering, production optimization, enhanced oil recovery (EOR), digital technologies, artificial intelligence, economic evaluation, and organizational excellence. Rather than treating recovery improvement as a purely technical challenge, this book demonstrates how sustainable value creation emerges from the alignment of subsurface understanding, operational execution, technology deployment, and strategic decision-making. Drawing upon global industry practices and modern recovery optimization methodologies, the book explores the complete lifecycle of mature asset management—from diagnosis and surveillance to EOR screening, production enhancement, digital transformation, economic prioritization, and future-ready operating models. Readers will gain practical insights into identifying recovery opportunities, reducing uncertainty, improving capital efficiency, and developing resilient strategies for maximizing ultimate recovery. Designed for petroleum engineers, reservoir engineers, production specialists, asset managers, executives, researchers, and graduate students, this book serves as both a technical reference and a strategic guide for navigating the evolving landscape of mature field development. Whether managing brownfield assets, evaluating EOR investments, implementing digital solutions, or leading asset transformation initiatives, readers will discover actionable frameworks and modern strategies to unlock hidden value and extend the productive life of oil and gas assets.