89

The increase in the volume of water used in 2017 is mainly due to exploration and production activities, mainly in Colombia, where the increase in activities has led to the increase of produced/ process water. This water is extracted together with the crude oil produced, after which it is either recycled to be used for other uses, or it is re-injected into the soil to return it to the environment from which it was uninten-

tionally extracted. The reuse and recycling of water in Exploration and Production activities considerably reduces the need to collect raw water from a source other than produced/ process water, thus that volume is substantially lower than the un- intentionally collected volume.

The volumes of reused and recycled wa- ter in 2017 are as follows:

RATINg C

CDP 2017 WATER

WATER

municipal network groundwater Surface water Process waters

Waste water from another

company Total

2017 2016 2017 2016 2017 2016 2017 2016 2017 2017 2016

Exploration and production 37 30 3,395 676 44 65 27,935 14,496 0 31,411 15,266

Refining 11,683 12,325 0 0 567 631 61 66 18 12,329 13,021

Chemicals 4,813 4,479 0 31 568 22 0 0 0 5,381 4,532

Commercial 657 539 462 436 0 0 0 0 0 1,119 975

Total 17,190 17,372 3,857 1,143 1,179 717 27,996 14,562 18 50,241 33,794

WATER vOLUmE COLLECTED (Thousands of m3)

2017 2016 % of total captured water

Reused water (m3) 15,246 80 0.0003

Recycled water (m3) 263,432 286,632 5.2429

2017 ANNUAL AND CORPORATE RESPONSIbILITy REPORT