Subsidiary

Jurisdiction of Organization

Diamond Foreign Asset Company

Cayman

Diamond Offshore Drilling (UK) Ltd

England

Diamond Offshore Drilling Limited

Cayman

Diamond Offshore Finance Company

Delaware

Diamond Offshore General Company

Delaware

Diamond Offshore International, L.L.C.

Delaware

Diamond Offshore Limited

England

Diamond Offshore Management Company

Delaware

Diamond Offshore Services, LLC

Delaware

Diamond Rig Investments Limited

England