Operating income from oil and gas-producing activities

Operating income represents only those revenues and expenses directly associated with oil and gas production. These amounts do not include financing costs (such as interest expenses) or corporate overhead costs and therefore do not correspond with the contributions to the Oil & Gas segment. The deviations in sales compared with segment reporting are the result of merchandise and service transactions not shown here, as well as the proportional inclusion of companies accounted for using the equity method in the IFRS-based Financial Statements. Estimated income taxes were computed using local applicable income tax rates.