Spanning Canada and the United States, North America is home to a plethora of major industry players, including Exxon Mobil Corp, the world's second-largest publicly traded company after Royal Dutch Shell. The region's oil and natural gas industry is focused on developing oil sands, deepwater gulf prospects and increasingly profitable shale deposits stretching across the continent. One of the premier sweet spots for deepwater exploration, the Gulf of Mexico is the largest body of water indenting the U.S. continental coastline, and its subsea developments continue to spark both national and international interest.
Mud logging is the creation of a record (log) that contains the drilling activity observed during the drilling of a well. This information is usually gathered by examining rock cuttings brought to the surface by drilling. The mud log contains the entire geological record of the well; it may contain information regarding lithology (rock type), drill time, mud characteristics, and if there was any indication of oil or gas.