A BP internal report on the deadly 2005 Texas City plant explosion recommended the firing of four executives and managers for failing to perform their jobs and poor judgment.

The report also concluded that the accountability of top refinery executive John Manzoni should be reviewed by the company because he "failed to implement his duties" and didn't "carry out his responsibilities." It blamed Manzoni for “muddled” organization, and allowing a culture of risk to develop. The report said the refinery had not been properly maintained for some years prior to 2002. A supplementary report on Manzoni's role came to the conclusion that he did not give safety the same priority as commercial issues.

Release of the previously confidential report -- by court order -- came two days after the resignation of BP CEO John Browne.

The U.S. Chemical Safety and Hazard Investigation Board found that BP fostered bad management at the plant. It also said cost-cutting was a factor in the explosion. A company spokesman says BP will not discuss specific content in the report.