Melbana Energy Limited Annual Report 2022

3 Critical accounting judgements, estimates and assumptions (continued) Fair value measurement hierarchy The Consolidated Entity is required to classify all assets and liabilities, measured at fair value, using a three level hierarchy, based on the lowest level of input that is significant to the entire fair value measurement, being: Level 1: Quoted prices (unadjusted) in active markets for identical assets or liabilities that the entity can access at the measurement date; Level 2: Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly; and Level 3: Unobservable inputs for the asset or liability. Considerable judgement is required to determine what is significant to fair value and therefore which category the asset or liability is placed in can be subjective. Estimation of useful lives of assets The Consolidated Entity determines the estimated useful lives and related depreciation and amortisation charges for its property, plant and equipment and finite life intangible assets. The useful lives could change significantly as a result of technical innovations or some other event. The depreciation and amortisation charge will increase where the useful lives are less than previously estimated lives, or technically obsolete or non-strategic assets that have been abandoned or sold will be written off or written down. Recovery of deferred tax assets Deferred tax assets are recognised for deductible temporary differences only if the Consolidated Entity considers it is probable that future taxable amounts will be available to utilise those temporary differences and losses. Incremental borrowing rate Where the interest rate implicit in a lease cannot be readily determined, an incremental borrowing rate is estimated to discount future lease payments to measure the present value of the lease liability at the lease commencement date. Such a rate is based on what the Consolidated Entity estimates it would have to pay a third party to borrow the funds necessary to obtain an asset of a similar value to the right-of-use asset, with similar terms, security and economic environment. 4 Operating segments The Consolidated Entity operates in the petroleum exploration industry within Australia and Cuba. The Board of Directors currently receive regular consolidated cash flow information as well as Consolidated Statement of Financial Position and Statement of Comprehensive Income information that is prepared in accordance with Australian Accounting Standards. The Board does not currently receive segmented Statement of Financial Position and Statement of Comprehensive Income information. The Board manages exploration activities of each permit area through review and approval of budgets, joint venture cash calls and other operational information. Information regarding exploration expenditure capitalised for each area is contained in Note 13. 5 Other income 30-June-22 $ 30-June-21 $ COVID-19 – related government grants - 35,472 Grant (overpayment)/income (688) 10,537 Income tax refund - 443 Receipt of in specie shares - 660,194 Receipt of sale proceeds from sale of permit 10,391,856 396,713 Other income 10,391,168 1,067,887 Other income Other income is recognised when it is received or when the right to receive payment is established. COVID-19-related government grants COVID-19-related government grants represent the cash flow boost payments received from Federal Government in response to ongoing novel coronavirus (COVID-19) pandemic. Government grants are recognised in the financial statements at expected values or actual cash received when there is a reasonable assurance that the Consolidated Entity will comply with the requirements and that the grant will be received. 35 Melbana Energy Limited Annual Report 2022