Book excerpt: Twilight in the Desert reveals a Saudi oil and production industry that could soon approach a serious, irreversible decline. In this exhaustively researched book, veteran oil industry analyst Matthew Simmons draws on his three-plus decades of insider experience and more than 200 independently produced reports about Saudi petroleum resources and production operations. He uncovers a story about Saudi Arabias troubled oil industry, not to mention its political and societal instability, which differs sharply from the globally accepted Saudi version. Its a story that is provocative and disturbing, based on undeniable facts, but until now never told in its entirety. Twilight in the Desert answers all readers questions about Saudi oil and production industries with keen examination instead of unsubstantiated posturing, and takes its place as one of the most important books of this still-young century.