b'STAATSOLIE MAATSCHAPPIJ SURINAME N.V.NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS FOR THE YEAR ENDED DECEMBER 31, 2018 (Continued)Executive pension plan2018changesinthedefinedbenefitobligationandfairvalueoftheplanassets.Pension cost charged to profit or loss Remeasurement gains/(losses) in other comprehensive income(X US$ 1,000) Return on ActuarialActuarial plan assets changeschanges Net InterestSub-totalBenefits(excludingarising fromarising fromExperienceSub total ContributionContribution 1.1.2018 Service cost expense included inpaid amountschanges inchanges inadjustments included inby employer by employee 31.12.2018profit or loss included indemographicfinancial OCInet interestassumptions assumptionsexpense)Definedbenefitobligation(4,593) (284) (207)(491) - - - 65171 236- -(4,848)Fair value of plan assets3,947- 183183-(53) - -(53) 23032 4,339 Benefit liability(646)(284)(24)(308)- (53)- 65 171 183 230 32 (509)2017changesinthedefinedbenefitobligationandfairvalueoftheplanassets.Pension cost charged to profit or loss Remeasurement gains/(losses) in other comprehensive income(X US$ 1,000) Return on ActuarialActuarial plan assets changeschanges Net InterestSub-totalBenefits(excludingarising fromarising fromExperienceSub total ContributionContribution 1.1.2017 Service cost expense included inpaid amountschanges inchanges inadjustments included inby employer by employee 31.12.2017profit or loss included indemographicfinancial OCInet interestassumptions assumptionsexpense)Definedbenefitobligation(4,015)(254) (181)(435) - - - (220)77 (143) - -(4,593)Fair value of plan assets2,818-155 155- (282) - - -(282) 1,22432 3,947 Benefit liability(1,197)(254)(26)(280)- (282)- (220)77 (425)1,224 32 (646)GOw2 retiree pension plan Post-employment benefitsGOw2hasalong-termpensionobligation Retiree medical planregarding eight former Chevron retirees and widowers.Thepaymenttothoseretireesaremade RetiredemployeesofStaatsolie,GOw2andby GOw2 out of funds deposited by Chevron atSPCS whose employment was terminated due thetimeoftheacquisitionin2011.Theremaining toreachingtheretirementageafteraspecifiedbalanceasatDecember31,2018isUS$79,while numberofyearsofservice,aswellasthosewhotheremainingbalanceasatDecember31,2017 arepartoftheirfamily,shallbeentitledtomedicalwasUS$95. care at the expense of the Group. Entitlements shall also be granted to retired employees of Staatsolie whose employment was terminated due to disability with the entitlement to a disability pension,aswellasthosewhoarepartoftheirfamilyatthattime.Thereisnorequirementforaminimum service.88 STAATSOLIE 2018 ANNUAL REPORT'