The company said that the first production was expected in mid-2011.

Anadarko’s recent hydro-testing of the riser provided results that preclude it from being put into service on this project despite the production riser system undergoing a qualification program prior to installation.

Anadarko Worldwide Operations Sr vice president Chuck Meloy said that the company is delaying first production at the Caesar/Tonga project after its recent hydro-test of the production riser system indicated it was not fit for service.

"The project was otherwise on schedule, as we had recently secured the necessary permits to begin completions on the first two wells; nonetheless, in the interest of safety and the environment, delaying startup is clearly the right decision," Meloy said.

Anadarko operates the Caesar/Tonga development with a 33.75% working.