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Updated December 2020

Petrinex Vent Data 

Volumes of gas that are vented, flared, or consumed as fuel for each oil and gas site have been reported through Petrinex since 2004 and we have publicly reported these volumes each year in our ST60B: Upstream Petroleum Industry Flaring and Venting Report. The table below highlights annual vent gas volumes dating back to 2010. These volumes include both routine and nonroutine venting but do not include fugitive emissions (unintentional hydrocarbon releases to atmosphere).

You can see that overall venting has been decreasing since 2014. The vent gas volumes reported in 2020 are greater than those reported in 2019. This is not an increase in venting. This is a shift in volume from one reporting category to another. The definition for vent gas was revised as part of the methane reduction requirements. Starting in 2020, volumes that would have previously been reported as fuel gas are now being reported as vent gas. For example, the previous definition of gas used to drive a pneumatic device was fuel gas. Since this gas is ultimately vented to the atmosphere, we changed the definition of this gas to vent gas and now it is reported as vent in Petrinex. 

You can also see that gas facilities are increasing venting at a higher rate than other facilities. This is because these facilities are more impacted by definition changes than others. 

Operator Total Vent Performance

Using Petrinex data, we can also look at the performance of companies relative to each other. While total vent volume may place an operator at the top of the list, the emission intensity of that operator may put them in the middle of the pack. Meeting our emission reduction targets will depend on total vent volume reductions, but a key performance indicator will be venting intensity. 

The table below shows the top 25 operators by reported vent volumes, including total production and venting intensity; you can see how the companies vary in production and their venting intensity.

Operator Total Production (BoE) Total Vent (e3m3) Venting Intensity (tCO2e/BoE)
Canadian Natural Resources Limited 230,970,034 70,776 0.0047
Husky Oil Operations Limited 57,508,305 14,505 0.0034
Cardinal Energy Ltd. 5,441,678 5,609 0.0129
Torxen Energy Ltd. 22,574,594 4,668 0.0027
Tamarack Acquisition Corp. 8,104,617 3,383 0.0053
Gear Energy Ltd. 1,539,247 3,291 0.0282
Cenovus Energy Inc. 180,844,938 3,046 0.0002
Surge Energy Inc. 6,580,045 3,022 0.0057
Obsidian Energy Ltd. 10,130,638 2,665 0.0033
West Lake Energy Corp. 3,793,254 2,503 0.0093
Crew Energy Inc. 373,457 2,500 0.0977
TAQA North Ltd. 21,498,189 2,409 0.0015
Spur Petroleum Ltd. 4,116,720 2,348 0.0032
Harvest Operations Corp. 10,031,304 2,324 0.0031
Karve Energy Inc. 3,163,415 2,061 0.0084
Prairie Provident Resources Canada Ltd. 2,239,850 1,940 0.0109
Ipc Canada Ltd. 9,484,787 1,822 0.0027
Repsol Oil & Gas Canada Inc. 16,419,553 1,705 0.0014
Bonavista Energy Corporation 21,971,745 1,557 0.0010
Yangarra Resources Corp. 4,747,687 1,533 0.0041
AlphaBow Energy Ltd. 3,177,790 1,495 0.0064
InPlay Oil Corp. 1,624,634 1,461 0.0113
Whitecap Resources Inc. 8,725,086 1,276 0.0018
Grizzly Resources Ltd. 515,982 1,223 0.0296
Rife Resources Ltd. 305,959 993 0.0449

OneStop Data Validation

AER began receiving source specific and fugitive emission methane data through OneStop in 2020. The methane volumes reported in 2020 were lower than what we expected based on emission estimates for provincial upstream oil and gas facilities. There may be a couple of reasons for the difference: incomplete reporting by industry and over-estimating by the AER. To understand why this difference is occurring, we are undertaking an extensive data validation exercise that includes record audits and field-level methane inspections. Our goal is to identify and resolve as many reporting issues as we can through this validation process and work with industry to minimize or eliminate the occurrence of these issues next year.  

OneStop data will not be published until the completion of the data validation exercise.