CDN NAT RES revenue for the last year amounted to 22.86 B CHF, the most of which — 11.00 B CHF — came from its highest performing source at the moment, Exploration and Production - North America, the year earlier bringing 15.00 B CHF. The greatest contribution to the revenue figure was made by North America — last year it brought CDN NAT RES 21.99 B CHF, and the year before that — 27.75 B CHF.