"This Bureau of Mines report provides information on the first 49 waterflood projects (or units ) in Nebraska. All injection was in the ""D"" or ""J "" Cretaceous sands of western Nebraska. Specific data presented include location, map, discovery and development, water supply and injection, oil and water production, estimates of oil in place, primary and secondary recoveries. The 49 projects studied, including four dual-zone projects, should recover about 126 .5 million barrels of oil. Eighty- six percent of the estimated oil had been recovered by the end of 1966. Abundant water'was found near most projects."