Deepwater drilling services company Ocean Rig UDW Inc. said May 18 that the contract for drillship Ocean Rig Poseidon was extended until second-quarter 2017 after all closing conditions, including approvals by national authorities, were met for its omnibus agreement with Eni Angola SpA.

The total contract backlog is now about US$367 million.

Ocean Rig also said it entered a new contract for drillship Ocean Rig Olympia to work offshore Angola in 2015’s third quarter for a minimum of eight months. The total contract backlog is about US$91 million.

Ocean Rig UDW Inc. is based in Greece.