This is an indispensable tool in the oil, gas and energy industries. The information included in this book has made writing tasks within energy and its related industries simpler and has, through the years, added consistency to industry reports. The 6th edition provides valuable supplementary information about Minerals Management Services Two Digit Area Prefix Standards and expands Miscellaneous Information and Symbols to include Directional Survey Methods, Frequently Cited Additives, Frequently Cited Fluids, and Lithology and Formation Names.