In deepwater Gulf of Mexico, the new Lower Tertiary play shows great promise - as much as 15 billion bbl of potentially recoverable reserves, according to MMS. There has been a rash of discoveries in recent years, including the much publicized Jack-2 and Kaskida fields in the Lower Tertiary formations, which is sometimes referred to as the Wilcox trend, and has long been recognized as a major petroleum resource throughout the Texas and southwestern Louisiana area. Discovery well depths have been as shallow as 15,00 ft in some areas to as deep as 30,000 ft in others.