Sources told upstream that drilling giants Transocean and Ensco submitted bids in July, following a tender earlier this year.

Some sources suggested that international drilling contractor Seadrill is also believed to have submitted a bid.

However, sources tipped Trans­ocean as the frontrunner, as it currently has two drillships working with Reliance and is on good terms with the operator.

“Reliance and Transocean share an excellent working relationship.