Oil and gas sector reporting guide

The purpose of this document is to clarify the reporting requirements for the oil and gas sector. Three reporting scenarios will be looked at:

Activity-Based Reporting

Pipeline Installations

A pipeline installation is defined as a collection of equipment situated at a single site, used in the operation of a natural gas transmission or distribution pipeline. This definition includes compressor stations along raw and processed natural gas pipelines. In 2002, pipeline installations transmitting or distributing raw natural gas were exempt, this exemption no longer exists.

  • Parts 1- 3 substances: No report is required since a pipeline installation is not considered a contiguous facility.
  • Parts 4 substances: Criteria Air Contaminants (CAC) released from the burning of fuel in stationary combustion equipment, situated at the pipeline installations, must be considered. A report is required for each CAC that the release threshold is met or exceeded.
  • Part 5 substances: If total VOCs were reported in Part 4, a report is required for each speciated VOC that the release threshold is met or exceeded. Only the VOC releases from stationary combustion equipment must be speciated.

Terminal Operations

A terminal operation is defined as either:

  1. the use of storage tanks and associated equipment at a site used to store or transfer crude oil, artificial crude or intermediates of fuel products into or out of a pipeline, or
  2. the operating activities of a primary distribution installation normally equipped with floating-roof tanks that receives gasoline by pipeline, rail car, marine vessel or directly from a refinery.
    • A report is required for each substance (Parts 1 - 5) that met or exceeded the threshold since it is one of the activities to which the 20 000 hour employee threshold does not apply. All sources of Part 4 (CAC) and 5 (speciated VOCs) substances must be considered, including stationary combustion equipment.

Drilling and Exploration

  • These activities are exempt from reporting to the NPRI. Therefore no report is required for any NPRI listed substance that is manufactured, processed or otherwise used, incidentally manufactured, or released as a result of drilling or exploration activities.

Facilities with Less than 20 000 Employee-Hours

Operation of Wells

  • Part 1 and 2 substances: Reporting is only required if the facility was used for one of the activities listed in Table 1 below.
  • Part 3 substances: Reporting is only required if the facility was used for one of the activities listed in Table 1 below and was engaged in one of the activities listed in Table 2 below.
  • Part 4 substances: A report is required for each substance that the release threshold is met or exceeded. Only Criteria Air Contaminants released from the burning of fuel in stationary combustion equipment needs to be considered.
  • Part 5 substances: If total VOCs were reported in Part 4, a report is required for each speciated VOC that the release threshold is met or exceeded. Only the VOC releases from stationary combustion equipment must be speciated.

Table 1: Activities to which the 20 000 employee-hour threshold does not apply

  • non-hazardous solid waste incineration of 26 tonnes or more of waste per year, including small combustion units, conical burners and beehive burners
  • biomedical or hospital waste incineration of 26 tonnes or more of waste per year
  • hazardous waste incineration
  • sewage sludge incineration
  • wood preservation
  • terminal operations
  • discharge of treated or untreated wastewater from a wastewater collection system with an annual average discharge of 10 000 m3/day or more, into surface waters.

Table 2: Was the facility engaged in one of the following activities?

  • non-hazardous solid waste incineration of 26 tonnes or more of waste per year, including small combustion units, conical burners and beehive burners
  • biomedical or hospital waste incineration of 26 tonnes or more of waste per year
  • hazardous waste incineration
  • sewage sludge incineration
  • base metals smelting (copper, lead, nickel and zinc)
  • smelting of secondary aluminum
  • smelting of secondary lead
  • manufacturing of iron using a sintering process
  • operation of electric arc furnaces in steel foundries
  • operation of electric arc furnaces in steel manufacturing
  • production of magnesium
  • manufacturing of portland cement
  • production of chlorinated organic solvents or chlorinated monomers
  • combustion of fossil fuel in a boiler unit with a nameplate capacity of 25 megawatts or greater of electricity, for the purpose of producing steam for the production of electricity
  • combustion of hog fuel originating from logs that were transported or stored in salt water in the pulp and paper sector,
  • combustion of fuel in kraft liquor boilers used in the pulp and paper sector
  • wood preservation using pentachlorophenol.

Note: "Engaged in" means the activity occurs at the facility.

Processing

Gas Plants, Refineries, Oil Batteries, Glycol Dehydrators, etc.

  • Part 1 and 2 substances: Reporting is only required if the facility was used for one of the activities listed in Table 1 above.
  • Part 3 substances: Reporting is only required if the facility was used for one of the activities listed in Table 1 above and was engaged in one of the activities listed in Table 2 above.
  • Part 4 substances: A report is required for each substance that the release threshold is met or exceeded. Only Criteria Air Contaminants released from the burning of fuel in stationary combustion equipment needs to be considered.
  • Part 5 substances: If total VOCs were reported in Part 4, a report is required for each speciated VOC that the release threshold is met or exceeded. Only the VOC releases from stationary combustion equipment must be speciated.

Offshore Installations

An offshore installation is defined as an offshore drilling unit, production platform or ship, or sub sea installation attached to or anchored to the continental shelf of Canada in connection with the exploitation of oil or gas.

  • Part 1 and 2 substances: Reporting is only required if the facility was used for one of the activities listed in Table 1 above.
  • Part 3 substances: Reporting is only required if the facility was used for one of the activities listed in Table 1 above and was engaged in one of the activities listed in Table 2 above.
  • Part 4 substances: A report is required for each substance that the release threshold is met or exceeded. Only Criteria Air Contaminants released from the burning of fuel in stationary combustion equipment needs to be considered.
  • Part 5 substances: If total VOCs were reported in Part 4, a report is required for each speciated VOC that the release threshold is met or exceeded. Only the VOC releases from stationary combustion equipment must be speciated.

Exclusion for Facilities with less than 20 000 employee-hours and pipeline installations

This exclusion is specific to Part 4 and 5 substance reporting and is only applicable for facilities with less than 20 000 employee-hours or for pipeline installations.

  • A report is not required for any Part 4 or 5 substances if all of the following criteria are met:
    1. the substances were only emitted to air at the facility from stationary, external combustion equipment; and
    2. the cumulative nameplate capacity of all stationary, external combustion equipment was less than 10 million BTU/hour (10.55 million kJ/hour); and
    3. the only type of fuel combusted in that equipment was commercial grade natural gas, liquefied petroleum gas, Number 1 or 2 fuel oil or any combination thereof.

NOTE: This exclusion does not apply if any fuel other than commercial grade natural gas, liquefied petroleum gas, Number 1 or 2 fuel oil or any combination thereof was also burned in the stationary, external combustion equipment.

Facilities with More than 20 000 Employee-Hours

Operation of Wells

  • Part 1 and 2 substances: A report is required for each substance that meets or exceeds the reporting threshold.
  • Part 3 substances: Reporting is only required if the facility was engaged in one of the activities listed in Table 2.
  • Part 4 substances: A report is required for each substance that the release threshold is met or exceeded. All sources of Criteria Air Contaminants must be considered, including all stationary combustion equipment.
  • Part 5 substances: If total VOCs were reported in Part 4, a report is required for each speciated VOC that the release threshold is met or exceeded. All VOC releases must be speciated.

Processing

Gas Plants, Refineries, Oil Batteries, Glycol Dehydrators, etc.

  • Part 1 and 2 substances: A report is required for each substance that meets or exceeds the reporting threshold.
  • Part 3 substances: Reporting is only required if the facility was engaged in one of the activities listed in Table 2.
  • Part 4 substances: A report is required for each substance that the release threshold is met or exceeded. All sources of Criteria Air Contaminants must be considered, including all stationary combustion equipment.
  • Part 5 substances: If total VOCs were reported in Part 4, a report is required for each speciated VOC that the release threshold is met or exceeded. All VOC releases must be speciated.

Offshore Installations

An offshore installation is defined as an offshore drilling unit, production platform or ship, or sub sea installation attached to or anchored to the continental shelf of Canada in connection with the exploitation of oil or gas.

  • Part 1 and 2 substances: A report is required for each substance that meets or exceeds the reporting threshold.
  • Part 3 substances: Reporting is only required if the facility was engaged in one of the activities listed in Table 2.
  • Part 4 substances: A report is required for each substance that the release threshold is met or exceeded. All sources of Criteria Air Contaminants must be considered, including all stationary combustion equipment.
  • Part 5 substances: If total VOCs were reported in Part 4, a report is required for each speciated VOC that the release threshold is met or exceeded. All VOC releases must be speciated.

Summary

Table 3 summarizes the reportable substances for the oil and gas sector. A (Y) indicates that the substance category must be considered and that the associated reporting requirements need to be consulted. An ( x ) indicates that no reporting for that substance category is required, either due to an exemption or lack of meeting reporting requirements. A (Y) indicates that reporting for that substance category is required if the reporting threshold is met. SCE is used to refer to stationary combustion equipment.

Detailed reporting requirements will be made available in the Guide for Reporting to the NPRI.

Table 3: NPRI Reporting Summary for the Oil and Gas Sector

Activity based reporting
  Parts 1 through 3 Substances Parts 4 and 5 Substances
SCE Only All Sources
All pipeline installations x Y  
Terminal Operations Y   Y
Less than 20 000 employee hours
  Parts 1 through 3 Substances Parts 4 and 5 Substances
SCE Only All Sources
Drilling and Exploration x   x
Well operation x Y  
Processing x Y  
Offshore Installations x Y  
20 000 employee hours or more
  Parts 1 through 3 Substances Parts 4 and 5 Substances
SCE Only All Sources
Drilling and Exploration      
Well operation Y   Y
Processing Y   Y
Offshore Installations Y   Y

Flare Stack Default Information

The information below can be used to populate the average exit temperature, velocity and flow rate for flare stacks where this information is not available specific to the stack. If you do use these default values it is strongly recommended that you include a statement in the stack comments to that effect.

Average Exit Temperature: 333 °C

Average Exit Velocity: 15.24 m/s

Average Exit Flow Rate: 8.89 m3/s

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