b'engineering. He graduated from University of California at Berkeley in 2000 with Bachelor of ScienceDegrees in Chemical Engineering and Material Science Engineering, and he received a Master ofScience degree in Petroleum Engineering from University of Southern California in 2007.Mr. Famurewa meets or exceeds the education, training, and experience requirements set forth in theStandards Pertaining to the Estimating and Auditing of Oil and Gas Reserves Information promulgatedby the Society of Petroleum Engineers and is proficient in judiciously applying industry standardpractices to engineering and geoscience evaluations as well as applying SEC and other industry reservesdefinitions and guidelines.The Audit Committee provides oversight on the processes utilized in the development of ourinternal reserve and resource estimates on an annual basis. In addition, our Reservoir Engineeringteam meets with representatives of our independent reserve engineers to review our assets and discussmethods and assumptions used in preparation of the reserve and resource estimates. Finally, our seniormanagement reviews reserve and resource estimates on an annual basis.Gross and Net Undeveloped and Developed AcreageThe following table sets forth certain information regarding the developed and undevelopedportions of our license and lease areas as of December 31, 2018 for the countries in which we currentlyoperate.Developed Area Undeveloped Area(Acres) (Acres) Total Area (Acres)Gross Net(1) Gross Net(1) Gross Net(1)(In thousands)Ghana(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 32 34 7 197 39Cote dIvoire . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,143 1,865 4,143 1,865Equatorial Guinea(3) . . . . . . . . . . . . . . . . . . . . . 2,355 942 2,355 942Mauritania . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9,275 2,172 9,275 2,172Namibia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,039 1,368 3,039 1,368Sao Tome and Principe . . . . . . . . . . . . . . . . . . . . 9,255 4,270 9,255 4,270Senegal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,116 635 2,116 635Suriname . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,793 1,142 2,793 1,142U.S. Gulf of Mexico . . . . . . . . . . . . . . . . . . . . . . 127 35 131 70 258 105Total Kosmos . . . . . . . . . . . . . . . . . . . . . . . . . . . 290 67 33,141 12,471 33,431 12,538Equity method investment(4) . . . . . . . . . . . . . . 65 28 65 28Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355 95 33,141 12,471 33,496 12,566(1) Net acreage based on Kosmos participating interests, before the exercise of any options or back-inrights, except for our net acreage associated with the Jubilee and TEN fields, which are after theexercise of options or back-in rights. Our net acreage in Ghana may be affected by anyredetermination of interests in the Jubilee Unit.(2) The Exploration Period of the WCTP petroleum contract and DT petroleum contract has expired.The undeveloped area reflected in the table above represents acreage within our discovery areasthat were not subject to relinquishment on the expiry of the Exploration Period.(3) In January 2019, we entered into an agreement to acquire Ophirs remaining interest in the block,subject to customary governmental approvals, which will result in Kosmos owning an 80% interestin Block EG-24. After completion of this transaction, our net acreage in Equatorial Guinea will be1,292 thousand acres.(4) Represents our 50% interest in KTIPI. Effective as of January 1, 2019, our outstanding shares inKTIPI were transferred to Trident in exchange for a 40.375% undivided interest in the Ceiba Fieldand Okume Complex. As a result, our interest in the Ceiba Field and Okume Complex will beaccounted for under the proportionate consolidation method of accounting going forward.29'