2,412 wells drilled, a slight decrease (4%) from the 1981 total of 2,502. Onshore exploratory drilling decreased 14%, with 505 wildcats drilled in 1982 compared with 581 in 1981. 55 new-field discoveries completed. 134 other wildcat discoveries. Oligocene trend remained the most active, with 40.6% of the wildcats, followed by the Eocene trend with 34.6%. Most of the significant new-field discoveries were made in the Oligocene Frio and Eocene Wilcox formations. 70 exploratory wells drilled offshore.--Modified journal abstract.