Abstract

Covering over 40 million acres, the Permian Basin is the fourth largest of the 28 productive areas containing giant fields. The 56 giant fields in the basin compare with the total of 264 giant oil fields in 27 other productive areas. Cumulative production figures of 18 billion barrels from the giant fields in the Permian Basin are the largest cumulative production figures from giant fields in any of the productive areas. Estimated 1.9 billion barrels of remaining reserves in giant fields rank the basin third among these areas and the 19.9 billion barrels total reserves in giant fields in the basin are the largest total reserves found in giant fields in any of the productive areas. The 1990 production figures from giant fields place the basin second in production among areas with giant fields. However, converting these figures to averages for the giant fields by basin places in the Permian Basin 12th in field size among the areas with giant fields. Based on average reserves per well the basin ranks 18th. Average 1990 production per giant field place the basin seventh and the average 1990 production per well in giant fields place the Permian Basin 13th among the areas with giant fields.