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Natural gas transmission, storage and distribution, April 2018

Released: 2018-06-25

Natural gas transmission pipelines received 569.1 million gigajoules of natural gas from fields, gathering systems and plants in April, an increase of 6.5% from the same month in 2017. The vast majority of receipts were in Alberta (69.2%) and British Columbia (28.6%).

Over the same period, natural gas transmission and distribution systems delivered 213.6 million gigajoules to industrial consumers, 68.0 million gigajoules to residential consumers and 53.3 million gigajoules to commercial and institutional consumers.

Canadian distribution systems delivered $478.5 million worth of natural gas to residential consumers and $277.9 million worth of natural gas to commercial and institutional consumers in April.

Chart 1  Chart 1: Canadian monthly natural gas deliveries
Canadian monthly natural gas deliveries

Provincial deliveries

In April, deliveries of natural gas in Alberta totalled 169.1 million gigajoules. The majority (77.4%) were delivered to the industrial sector, which accounted for over a third (39.1%) of the natural gas consumed in Canada.

Meanwhile, natural gas transmission and distribution systems delivered 80.1 million gigajoules of natural gas in Ontario. The residential sector received 32.8 million gigajoules, representing 41.0% of Ontario deliveries.


In April, as the Canadian heating season ends, closing inventories of natural gas decreased 2.1% from the beginning of the month, to 586.4 million gigajoules. This marked the sixth consecutive month of declining natural gas inventories.

Chart 2  Chart 2: Canadian monthly natural gas inventories
Canadian monthly natural gas inventories

Exports and imports

Canadian exports of natural gas by pipeline to the United States were 270.7 million gigajoules April, while imports of natural gas from the United States were down 68.2 million gigajoules.

Chart 3  Chart 3: Canadian imports and exports of natural gas
Canadian imports and exports of natural gas

  Note to readers

Data from January 2016 to March 2018 have been revised.

Starting with reference month January 2018, the survey's coverage of natural gas storage facilities was expanded to improve the data quality of the program. As a result, comparisons to past estimates may be affected by the increased coverage.

In January 2016, changes were made to the Monthly Natural Gas Transmission Survey and the Monthly Natural Gas Distribution Survey. In addition, the Monthly Natural Gas Storage Survey was introduced to provide measures on gas storage characteristics related to inventories and flows.

Storage data are now published in table 25-10-0057-01, transmission data in table 25-10-0058-01 and distribution data in table 25-10-0059-01. Tables 25-10-0032-01, 25-10-0033-01, 25-10-0034-01 and 25-10-0035-01 will remain available for historical reference.


Data on natural gas no longer correspond to marketable natural gas but represent natural gas from fields, gas-gathering systems and gas plants.

Natural gas deliveries (termed "sales" in releases prior to January 2016) include deliveries to industrial, commercial and institutional, and residential consumers.

Opening inventories correspond to inventories as of the first day of the reference month, while closing inventories correspond to inventories as of the last day of the reference month. For example, the reference period for the opening inventory in January was January 1, while the reference period for the closing inventory was January 31.

Pipeline fuel is used to power compressors to move gas through pipelines.

Contact information

For more information, or to enquire about the concepts, methods or data quality of this release, contact us (toll-free 1-800-263-1136; 514-283-8300; or Media Relations (613-951-4636;

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