Following the completion of exploratory drilling in 2012, the Sabu-1 well was not deemed commercially viable. In November 2012, Hyperdynamics subsidiary SCS reached an agreement for a sale of 40% of the concession to Tullow Oil, bringing ownership shares in the Guinea offshore tract to 37% Hyperdynamics, 40% Tullow Oil, and 23% Dana Petroleum. Hyperdynamics will have until September 2016, under the current agreement, to begin drilling its next selected site, the Fatala Cenomanian turbidite fan prospect.