(Adds details on rigs)
NEW YORK, Sept 15 (Reuters) - Oil and gas drilling contractor Diamond Offshore Drilling Inc (DO.N) said on Monday one of its shallow-water drilling rigs had been damaged by Hurricane Ike and it was still trying to assess the condition of another that was in a Galveston shipyard.
The company said a visual inspection done by air showed its jack-up rig Ocean Tower had lost its drilling package, including the derrick, in the storm, which swept onto the Texas coast over the weekend.
The Ocean Tower, which was directly in the path of the storm, operates in water up to 350 feet deep and can drill to a depth of 25,000 feet.
Diamond Offshore said its Ocean Drake jack-up rig was in the Galveston shipyard but had not yet been inspected because it has not been able to access the area.
Ten other rigs that were affected by the storm appeared to have suffered relatively little or no damage. (Reporting by Matt Daily; Editing by Steve Orlofsky)