ALEXANDRIA, La. (AP) — An Oklahoma man who owned an oil production company has pleaded guilty to negligently discharging oil into Devil's Creek near Jena.

Federal prosecutors say 61-year-old Kent Phillips, of Oklahoma City, faces a maximum sentence of one year in prison following his guilty plea Thursday to violating the Clean Water Act.

Phillips owned Kepco Operating Inc., which leased oil field sites near Jena.

His sentencing is set for Oct. 10.

The case was investigated by the Environmental Protection Agency's Criminal Investigation Division.