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Environmental performance 1
Supply chain 17,18
Global employee diversity 16
US Equal Employment Opportunity Commission statistics 16
Health and safety performance 19,20
2017 direct GHG equity 24
2017 VOCs 24

  1. Unless otherwise noted, this section reflects 2019 data collected as of April 16, 2020. All data are reported on an operated basis unless otherwise noted.
  2. The World Resources Institute/World Business Council for Sustainable Development Greenhouse Gas Protocol: A Corporate Accounting and Reporting Standard defines three “scopes” that Chevron uses to report GHG emissions. Scope 1 includes direct emissions from sources within a facility, and for 2019 has been updated to remove previously included third-party vessels per industry guidance. Scope 2 includes indirect emissions from electricity and steam that Chevron facilities import. Scope 3 includes all other indirect emissions. Chevron reports information related to Scope 3 emissions from third-party use of our products.
    All six Kyoto GHGs—carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), sulfur hexafluoride, perfluorocarbons and hydrofluorocarbons—are included in Chevron’s Scope 1 emissions. CO2, CH4 and N2O are accounted for in Chevron’s Scope 2 emissions and in Chevron’s Scope 3 emissions related to the electricity and steam that Chevron exports to third parties.
    The following entities are not currently included in the 2019 Chevron corporate GHG inventory: Chevron Phillips Chemical Co., the Caspian Pipeline Consortium, and other nonoperated assets in which Chevron has an equity interest of 16 percent or less. Information regarding GHG emissions from Chevron Phillips Chemical Company LLC can be found at
  3. Direct GHG emissions related to production of energy in the form of electricity or steam exported or sold to a third party have been included in the reported Scope 1 emissions to conform to the 2015 IPIECA Reporting Guidance.2019 direct GHG emissions decreased in part as a result of divestment of Cape Town Refinery and assets in IndoAsia Business Unit. Emissions from the nonoperated assets in Canada Business Unit have been revised for 2019 to reflect more site-specific data.
  4. Restated indirect emissions and emissions from exported electricity and steam from 2015 to 2018. Scope 2 emissions are accounted using the market-based approach as described in the World Resources Institute’s GHG Protocol Scope 2 Guidance.
  5. Chevron supports transparency and continues its long-standing practice of reporting Scope 3 emissions associated with the use of its products. Chevron calculates emissions from third-party use of our products in alignment with the three approaches in Category 11 of IPIECA’s Estimating Petroleum Industry Value Chain (Scope 3) Greenhouse Gas Emissions (2006). Of the 2019 annual use of our product emissions reported in the chart generator above, Scope 3 associated with LNG is 43 million tonnes CO2e under method 11a (use of product based on production) and 48 million tonnes CO2e under method 11c (use of product based on sales).
    Chevron believes the world’s demand for oil and gas should be supplied by the cleanest and most efficient producers. Chevron supports the Paris Agreement and its goal of “holding the increase in the global average temperature to well below 2° C above pre-industrial levels and pursuing efforts to limit the temperature increase to 1.5° C above preindustrial levels,” which per the IPCC implies reaching global net zero in the second half of this century. Our strategy to address our Scope 3 emissions (including LNG emissions) to meet post- 2050 Paris Accord emission reduction goals includes: (1) supporting a price on carbon through well-designed policies; (2) transparently reporting Scope 3 emissions and enabling customer tracking of carbon intensity across value chains, including lowering the carbon intensity of its operations and setting greenhouse gas emissions intensity reduction metrics; and (3) enabling customers to lower their emissions through increasing renewable products, offering offsets, and investing in low-carbon technologies. With respect to offsets and technology development, we plan to: (1) provide offsets of our Scope 3 LNG emissions to the extent requested by our customers (for example, to enhance the global scaling of offset markets, we partner with associations like the Taskforce for Scaling Voluntary Carbon Markets); and (2) continue our efforts through the Chevron Technology Ventures’ Future Energy Fund (our $100 million low-carbon venture to invest in technology that reduces or removes GHG emissions from the atmosphere (such as Carbon Engineering, which is exploring direct air capture)).. With respect to carbon taxes, the compliance burden with respect to use of LNG often falls on users of LNG.
  6. Emissions reported are net (Scope 1) and (Scope 2). The emissions included in the metrics generally represent the equity-share of emissions, which are emissions from operated and nonoperated joint venture (NOJV) assets. The scope may include sources outside of traditional scoping of equity emissions, including captive emissions from processes like drilling and completions and tolling agreements up to the point of third-party custody transfer of the oil or gas product.
    For oil and gas production intensity metrics, allocation of emissions between oil and gas are based on the fraction of production represented by liquids or gas. Production is aligned with values reported as net production in the Chevron Corporation Supplement to the Annual Report.
    Flaring and methane intensities use the total of liquids and gas production. Oil and gas production intensities use liquids production and natural gas production, respectively.
  7. For 2020 Chevron is reporting only on direct emissions, not intensity.
  8. Total energy consumption decreased due primarily due to divestiture of Cape Town Refinery and removal of third-party vessels.
    Refining energy performance is measured by the Manufacturing Energy Index (MEI), which is calculated using the Solomon Energy Intensity Index methodology. MEI includes operated assets and nonoperated joint-venture refineries.
    Energy performance for Oronite, Lubricants, Americas Products and International Products is measured by the Non-Manufacturing Energy Index, which is the energy required to produce Chevron products compared to the energy that would have been required to produce the same products in 1992 (the index’s base year).
  9. For compiling and reporting air emissions data, Chevron follows regulatory definitions of VOC. SOx emissions include SO2 and SO3, reported as SO2-equivalent. NOx emissions include NO and NO2 (reported as NO2-equivalent) and exclude N2O.
    VOC, SOx and NOx emissions decreased in 2019 in part due to asset divestments, transfers of operatorship, ends of contract, and refinements made in data calculation methods.
  10. Fresh water withdrawn from the environment is defined per local legal definitions. If no local definition exists, fresh water is defined as water extracted, directly or indirectly, from surface water, groundwater or rainwater that has a total dissolved solids concentration of less than or equal to 2,000 mg/L. Fresh water withdrawn does not include effluent or recycled/reclaimed water from municipal or other industrial wastewater treatment systems, as this water is reported under nonfresh water withdrawn.
    Nonfresh water withdrawn could include: seawater; brackish groundwater or surface water; reclaimed wastewater from another municipal or industrial facility; desalinated water; or remediated groundwater used for industrial purposes.
    Produced water is excluded from fresh water withdrawn, fresh water consumed and nonfresh water withdrawn.
    Nonfresh water withdrawn totals increased in 2019 in part due to an increase in well completions in the Midcontinental Business Unit, which use brackish water, as well as an increase in municipal reclaimed water use in Richmond Refinery.
  11. Oil concentration is determined by the sampling of effluent streams, using methods required or recommended by regulatory agencies or authorities, where applicable. Chevron reports the total cumulative amount of oil discharged to surface water excluding spills, which are reported separately.
  12. Chevron reports petroleum spills to land and water to conform to the 2015 IPIECA Reporting Guidance. Spills to land and water that are greater than or equal to one barrel are included. Spills to secondary containment, chemical spills and spills due to sabotage are excluded.
  13. The seven (7) spills of significance that Chevron experienced in 2019 ranged in size from 0.02 to 0.4 thousand barrels. Of the one (1.14) thousand barrels spilled in total, 0.6 were spilled to secondary containment.
    For purposes of conforming to the 2015 IPIECA Reporting Guidance, Chevron defines a spill of significance as a process safety Tier 1 loss-of-primary-containment (LOPC) event (as defined by American National Standards Institute/American Petroleum Institute [ANSI/API] Recommended Practice [RP] 754) with a consequence of a release of material greater than the threshold quantities described in Table 1 of ANSI/API RP 754 in any one-hour period. Spills to secondary containment, regardless of actual environmental impact, are included, as are chemical spills. Releases to air are excluded.
  14. To conform to the 2015 IPIECA Reporting Guidance, and where appropriate information and data exist, our hazardous waste numbers starting in 2015 exclude remediation waste generated, disposed of and recycled.
    Hazardous waste amounts are quantified using methods required or recommended by regulatory agencies or authorities, where applicable. In other instances, similar methods are used, including direct measurement onsite or at the point of shipping, engineering estimates, and process knowledge. Chevron follows the regulatory definitions of hazardous waste applicable to the jurisdictions in which we operate, including de minimis specifications (below which hazardous waste quantities do not need to be reported).
  15. The 2018 data have been restated. The 2019 data are based on information received from government entities and recorded internally prior to the publication of this report.
  16. Global employee diversity data and data from the U.S. Equal Employment Opportunity Commission have been rounded to the nearest integer for 2019 and previous years, and ethnicity/gender combined has been rounded to one decimal place.
    The Other Ethnicities category in the U.S. Equal Employment Opportunity Commission statistics includes Two or More Races, Native American or Alaska Native, and Native Hawaiian or Pacific Islander.
    U.S. Equal Employment Opportunity Commission statistics minority grouping includes ethnic diversity, both men and women.
  17. This section reflects data collected as of February 20, 2019 for years 2015-2018 and data collected as of January 23, 2020 for year 2019.
  18. Data exclude spend that is ultimately shared with our partners.
  19. This section reflects Chevron data collected as of February 12, 2019.
  20. Health and safety performance rates include both injury- and illness-related incidents. API’s Benchmarking Survey of Occupational Injuries, Illnesses and Fatalities in the Petroleum Industry data are used as industry benchmarks.
  21. The 2018 data have been restated.
  22. Data include catastrophic and major incidents only.
  23. Process safety Tier 1 (LOPC) events are unplanned or uncontrolled releases resulting in consequences equivalent to those specified by ANSI/API RP 754 and International Oil & Gas Producers (IOGP) Report 456: Process Safety Recommended Practice on Key Performance Indicators.
  24. Updated to reflect prior restatement in 2018.