Energy XXI said a recompletion program has more than doubled production of South Pass 78 oil field offshore Louisiana.
After recompletion of nine wells, production reached 5,450 boe/d, compared with 2,100 boe/d when the program began earlier this year.
Recompletion of a 10th well is in progress, the company said.
The field, 96 miles south of New Orleans, is a 1973 discovery in 140-190 ft of water. It has a large salt dome and more than 60 productive sands at depths of 3,000-16,000 ft.