Total’s West African rig-signing spree continued with the French operator contracting Ensco’s newbuild drillship Ensco DS-8 for a long-term program offshore Angola.

The DP3 drillship is under construction at Samsung in South Korea, with Total signing it in a 5-year deal. It is the fourth Ensco drillship contracted by the French operator.

Ensco said the contract adds about US $1.2 billion to its revenue backlog, with the unit expected to start operations offshore Angola in third-quarter 2015 upon completion of mobilization and testing.

The initial dayrate is put in the “high $610,000s” according to Ensco’s latest fleet update, with periodic rate increases to result in rates averaging about $650,000 over the whole drilling program. There will also be a mobilization fee of about $26 million.