19. REVENUES
| 2017 | 2016 | 2015 | ||||||||||
|
Sales (1) |
261,072 | 216,644 | 159,387 | |||||||||
|
Production incentive program (2) |
— | — | 1,988 | |||||||||
|
Revenues from construction contracts |
710 | 778 | 455 | |||||||||
|
Turnover tax |
(8,969 | ) | (7,322 | ) | (5,694 | ) | ||||||
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| 252,813 | 210,100 | 156,136 | ||||||||||
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| (1) | Includes 12,840, 16,757 and 12,345 for the years ended December 2017, 2016 and 2015, respectively, associated with revenues related to the natural gas additional injection stimulus program created by Resolution No. 1/2013 of the Planning and Strategic Coordination Commission of the National Plan of Hydrocarbons Investment. See Note 31. |
| (2) | See Note 31. |