Oil Pipeline Annual

Summary of changes

Activity on this program started: 1958

Reference period of change - 2018

Instrument design - The survey program transitioned into the Integrated Business Statistics Program (IBSP) framework and some of the questionnaire contents were changed.

Data for the Oil pipeline financial survey were revised back to reference year 2016. New methods were used to confront the 2018 data and previously released 2017 and 2016 data. Due to the improvements in data confrontation, the current estimates may not be comparable with estimates published prior to reference year 2016.

Reference period of change - 2016

For reference year 2016, the survey's coverage was expanded to improve data quality of the program.

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