This dictionary is a guide to the various legal, regulatory, technical, commercial and financial acronyms, terms and phrases used in today's international oil and gas industry. Written by a leading expert in the field, this portable, concise and comprehensive dictionary is invaluable to a reader navigating the industry for the first time or requiring a greater insight. The Energy Institute has provided invaluable assistance in compiling the dictionary with a review of the technical sections. The dictionary is divided into three sections: commonly-used acronyms, an A to Z definition of terms and phrases and a series of technical appendices which summarise certain essential aspects of the industry.