b'KOSMOS ENERGY LTD.GLOSSARY AND SELECTED ABBREVIATIONSThe following are abbreviations and definitions of certain terms that may be used in this report.Unless listed below, all defined terms under Rule 4-10(a) of Regulation S-X shall have their statutorilyprescribed meanings.2D seismic data . . . . . . . . . . . . . . . Two-dimensional seismic data, serving as interpretive data thatallows a view of a vertical cross-section beneath a prospectivearea.3D seismic data . . . . . . . . . . . . . . . Three-dimensional seismic data, serving as geophysical datathat depicts the subsurface strata in three dimensions. 3Dseismic data typically provides a more detailed and accurateinterpretation of the subsurface strata than 2D seismic data.API . . . . . . . . . . . . . . . . . . . . . . . A specific gravity scale, expressed in degrees, that denotes therelative density of various petroleum liquids. The scaleincreases inversely with density. Thus lighter petroleum liquidswill have a higher API than heavier ones.ASC . . . . . . . . . . . . . . . . . . . . . . . Financial Accounting Standards Board Accounting StandardsCodification.ASU . . . . . . . . . . . . . . . . . . . . . . . Financial Accounting Standards Board Accounting StandardsUpdate.Barrel or Bbl . . . . . . . . . . . . . . . A standard measure of volume for petroleum corresponding toapproximately 42 gallons at 60 degrees Fahrenheit.BBbl . . . . . . . . . . . . . . . . . . . . . . . Billion barrels of oil.BBoe . . . . . . . . . . . . . . . . . . . . . . Billion barrels of oil equivalent.Bcf . . . . . . . . . . . . . . . . . . . . . . . . Billion cubic feet.Boe . . . . . . . . . . . . . . . . . . . . . . . Barrels of oil equivalent. Volumes of natural gas converted tobarrels of oil using a conversion factor of 6,000 cubic feet ofnatural gas to one barrel of oil.Boepd . . . . . . . . . . . . . . . . . . . . . . Barrels of oil equivalent per day.Bopd . . . . . . . . . . . . . . . . . . . . . . Barrels of oil per day.Bwpd . . . . . . . . . . . . . . . . . . . . . . Barrels of water per day.Debt cover ratio . . . . . . . . . . . . . . . The debt cover ratio is broadly defined, for each applicablecalculation date, as the ratio of (x) total long-term debt lesscash and cash equivalents and restricted cash, to (y) theaggregate EBITDAX (see below) of the Company for theprevious twelve months.Developed acreage . . . . . . . . . . . . . The number of acres that are allocated or assignable toproductive wells or wells capable of production.Development . . . . . . . . . . . . . . . . . The phase in which an oil or natural gas field is brought intoproduction by drilling development wells and installingappropriate production systems.3'