b'gases in the Mauritania Salt Basin are the same age as those which charge other oil and gas fields inWest Africa.These blocks cover an aggregate area of approximately 6.0 million acres (gross). We have acquiredapproximately 6,300 line-kilometers of 2D seismic data and 15,800 square kilometers of 3D seismic datacovering portions of our blocks in Mauritania. Based on these 2D and 3D seismic programs, we havedrilled two successful exploration wells and an appraisal well, and have identified additional prospectsin our blocks. We continue to integrate the results of our drilling program in Mauritania.SenegalThe Senegal Blocks are located in the Senegal River Cretaceous petroleum system and range inwater depth from 300 to 3,100 meters. The area is an extension of the working petroleum system in theMauritania Salt Basin. We believe the area has multiple Cretaceous source rocks with Albian throughCenomanian reservoir sands providing exploration targets. We acquired approximately 7,000 squarekilometers of 3D seismic data over the central and eastern portions of the Senegal Blocks in January2015. In February 2016, we completed a 4,500 square kilometer survey over the western portions of theSenegal Blocks to fully evaluate the prospectivity. We have drilled two successful exploration wells andan appraisal well, and have identified additional prospects in our blocks.The following is a brief discussion of our discoveries to date offshore Mauritania and Senegal.Greater Tortue Ahmeyim DevelopmentThe Ahmeyim and Guembeul discoveries (collectively Greater Tortue Ahmeyim) are significant,play-opening gas discoveries for the outboard Cretaceous petroleum system and are locatedapproximately 120 kilometers offshore Mauritania and Senegal. The Greater Tortue Ahmeyimdevelopment straddles Block C8 offshore Mauritania and Saint Louis Offshore Profond offshoreSenegal.We have drilled three wells within the Greater Tortue Ahmeyim development, Tortue-1,Guembeul-1 and Ahmeyim-2. The wells penetrated multiple excellent quality gas reservoirs, includingthe Lower Cenomanian, Upper Cenomanian and underlying Albian. The wells successfully delineatedthe Ahmeyim and Guembeul gas discoveries and demonstrated reservoir continuity, as well as staticpressure communication between the three wells drilled within the Lower Cenomanian reservoir. Thediscovery ranges in water depths from approximately 2,700 meters to 2,800 meters, with total depthsdrilled ranging from approximately 5,100 meters to 5,250 meters.The Tortue-1 discovery well, located in Block C8 offshore Mauritania, intersected approximately117 meters of net hydrocarbon pay. A single gas pool was encountered in the Lower Cenomanianobjective, which is comprised of three reservoirs totaling 88 meters in thickness over a grosshydrocarbon interval of 160 meters. A fourth reservoir totaling 19 meters was penetrated within theUpper Cenomanian target over a gross hydrocarbon interval of 150 meters. The exploration well alsointersected an additional 10 meters of net hydrocarbon pay in the lower Albian section, which isinterpreted to be gas.The Guembeul-1 discovery well, located in the northern part of the Saint Louis Offshore Profondarea in Senegal, is located approximately five kilometers south of the Tortue-1 exploration well inMauritania. The well encountered 101 meters of net gas pay in two excellent quality reservoirs,including 56 meters in the Lower Cenomanian and 45 meters in the underlying Albian, with no waterencountered.The Ahmeyim-2 appraisal well is located in Block C8 offshore Mauritania, approximately fivekilometers northwest, and 200 meters down-dip of the basin-opening Tortue-1 discovery. The wellconfirmed significant thickening of the gross reservoir sequences down-dip. The Ahmeyim-2 well19'