Air Emissions

Crew is committed to reducing our emissions. From local contaminants such as NOx, SOx, VOC, and particulate matter (“PM”), to GHG emissions, which contribute to global climate change, Crew is taking concrete actions to reduce and eliminate our emissions.

A reduction in the use of diesel is key to reducing GHGs, SO2, and NOx emissions.  Please refer to the GHG emission strategy section to learn more about Crew’s initiatives to use bi-fuel frac pumps and boilers.

Crew has also seen a reduction in average flared volume per well, having dropped from 36 e3m3 in 2017 to 22 e3m3 per well in 2021*. The main drivers for the comparative decrease include reduced venting, fugitive emissions monitoring and leak repair, and use of bi-fuel (natural gas) instead of diesel as fuel for drilling and completions operations.

* includes our exploratory wells which did not have pipeline access to flow test the wells “in-line”. If these wells are excluded, the average flared volume per well is 2.7 e3m3 (over 20 wells).

Air Contaminants

48% Reduction

Crew has reduced air contaminants by 48% since 2017 on an overall tonnage basis.

As a fundamental principle, the quality of air we breathe must be kept free from as many contaminants as possible. Crew has taken significant steps to minimize these contaminants, focusing to primarily reduce NOx, SO2, volatile organic compounds (“VOCs”), and particulate matter (“PM”).

The increase in NOx in 2021 was due to higher diesel consumption at two pads, one of which had fuel gas supply issues due to extremely cold weather, and the other was an exploration area with no pipeline infrastructure. As development in our exploration areas mature, there will be a reduction in diesel usage.

Air Contaminants (tonnes of emissions)