This book aims to analyze how and why China takes a state-managed marketization approach (SMMA) to energy security against the backdrop of global efforts of decarbonization and intensified strategic competition between China and the United States. How, and why, does China's SMMA work? Taking an evolving, historical perspective, this book explores China’s perception of energy security, the policy process, institutional restructuring in China's petroleum industry, China's foreign energy quest, and the ramifications of the Chinese approach on the international energy market and on world decarbonization. To demonstrate to what extent China’s SMMA differs from other countries, it also makes a comparative analyses of the approaches by China, the US and India. This book will keenly interest scholars of the Chinese political economy, climate change, and geopolitics.