DeepOcean Ghana said it has won a three-year contract from Tullow for one of its light construction vessels.
The agreement also has the option for two additional years with work beginning last month.
The scope of the work will include inspection, maintenance and repair as well as surveys and subsea construction on the Jubilee and TEN fields, offshore Ghana.
A spokesman said: “We are very pleased that with this new contract we have the opportunity to increase the scope of work we are undertaking offshore Ghana for Tullow. Our commitment to local content which is in line with Tullow’s has been the key element of our work.
“We continue to demonstrate this through our use of local crew and in-country services, including Ghanaian ROV pilots and engineering support. Available competence in DeepOcean will be used to train and develop these local resources.”