Offshore magazine, first published in 1954, is a monthly publication recognized as the worldwide leader for covering the key issues and trends relative to offshore technology, oil and gas E&P operations. It is the world's most highly respected magazine dedicated entirely to the offshore industry, and enjoys the highest and most widely read circulation in its class. Since 1910, The PennWell Petroleum Group has been the industry leader for coverage of and service to the worldwide petroleum industry. Its foundation magazines are Oil & Gas Journal, Offshore, Oil, Gas & Petrochem Equipment, Oil & Gas Financial Journal, LNG Observer and The Petroleum Buyers Guide. The group also produces targeted e-Newsletters, hosts global conferences and exhibitions, seminars and forums, directories and technical books, print and electronic databases, surveys and maps.