Singapore's Keppel Corporation has issued notices of contract termination to three separate clients that had ordered one jack-up drilling rig, one tender-assist drilling rig and one liftboat respectively.

The 500-feet water depth jack-up rig N Plus was ordered in early 2014 by TS Offshore in a contract worth about US$ 500 million (S$689 million).

The tender-assist semi-submersible rig Sapura Raiqawas a KFels SSDT-5000NG design ordered in early 2015.