4. Article

Each Company may elect to capitalize, or deduct as incurred, intangible exploration expenses, or intangible drilling and development expenses, or both, incurred after Production Commencement Date. In the event that a Company does not elect to deduct such costs incurred in a given Financial Year, such Company shall capitalize and amortize such costs on a straight line basis over a period of ten (10) Financial Years, beginning with the Financial Year such costs are incurred.