The two gas fields previously discovered were the Shams EN-1 well, which tested 40 million cubic feet of gas and 1177 bpd of condensate, and the SW-1 well with 49 million cubic feet and 2200 bpd. Repsol owns 50% of the contractor group in the Khalda concession and is the operator of the group with partners Apache (40%) and Samsung (10%).