This excerpt taken from the PBR 6-K filed Nov 19, 2009.
The international unit lifting cost increased due to higher third-party service costs in Argentina, in turn caused by the tariff revision in the 2H-2008.
The quarter-over-quarter increase was due to the change in the International Areas production profile thanks to the growth in Nigerian offshore extraction, together with increased third-party service costs in Argentina and the higher number of well interventions.
This excerpt taken from the PBR 6-K filed Aug 18, 2009.
Consolidated international oil and NGL production increased due to the start-up of production in Nigeria in July 2008, partially offset by the reduction in Ecuador due to the sale of part of the interest in Block 18.
Consolidated gas production dipped by 1% due to the reduction in Brazils imports of Bolivian gas until April/2009 and lower consumption by thermal plants as a result of increased production by the hydro plants, offset by the increased interest in Sierra Chata, in Argentina, in the 4Q-2008.
Consolidated international oil and NGL production moved up due to the start-up of the Akpo Field, in Nigeria, in March/2009.
Consolidated gas production increased by 6% due to the increase in Brazils imports of Bolivian gas as of May/2009.