EXPLORERS USA 2005: Big Oil returns to shallow waters of Gulf of Mexico in search of gas after working deepwater

Major oil companies, after years of withdrawing from exploration on the Gulf of Mexico’s heavily exploited continental shelf, are returning in search of giant natural gas fields thought to lurk deep beneath the shelf. Until fairly recently, the majors invested most of their time and money looking fo....

    [additional news subjects in this story]

Large companies: blanket bidding

Ultra-deep requires major participation