ON COVER — Montage of photographs from the Illizi and Berkine basins of Algeria. From left: (1) Sunset at the AT-1 discovery well, Ain Tsila Field, Illizi Basin; (2) Saharan sand dunes north of the Tifernine Field, Illizi Basin; (3) Sunrise on New Year's Day at the KMD-2 wellsite, Kemad Field, Berkine Basin. See related article by English et al. on p. 623, this issue of the Bulletin. Photos by Joe English (1,2) and Chris Hudson (3).