Notes
2012
2
25 610 149 081.30
Operating revenue
3, 4
(213 166 275 923.55)
Operating expenses
5
36 808 813 791.85
Exploration and field development expenses
1 858 059 857.73
Depreciation
19 500 976 296.68
Interest
7
6 552 853 294.21
(148 445 572 683.08)
819 500 976 296.68)
(6 574 687 515.00)
21 834 220.79
(174 499 402 273.97)
Cash flow before change in open accounts (net revenue from the SDFI
(148 889 253 192.67)