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Rystad Energy

Rystad Energy

Rystad Energy is an independent energy consulting services and business intelligence provider offering global databases, strategic advisory and research products for energy companies and suppliers,…

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How Gas Flaring Fell To The Lowest Level In A Decade

  • Gas flaring represents roughly 30% of the total carbon dioxide emissions produced by the oil and gas industry, making it one of the key targets of decarbonization efforts in the world.
  • Gas flaring hit a decade-low in 2021 and, while a large portion of that decline was due to the impact of Covid on demand, it looks like a lot of the flaring improvements will be sustained.
  • Ten countries make up over 70% of global upstream flaring, so targeting these areas and ensuring they are regulating could significantly impact carbon emissions.

Gas flaring activity in the global upstream sector sunk last year to its lowest level in a decade due to improved productivity, increased environmental awareness, and lower fuel demand caused by Covid-19 lockdowns and travel restrictions, Rystad Energy research shows. Estimates show upstream flaring emitted about 276 million tonnes of carbon dioxide (CO2) in 2021, down marginally from 283 million tonnes in 2020, continuing a downward trend since the onset of the Covid-19 pandemic.

Improvements in the US shale sector are a significant driver of the decline in flaring activity. The tight oil sector, dominated by the US, flared the equivalent of about 12 million tonnes of CO2 in 2021, less than half of the 30 million tonnes seen in 2019. Improvements in the offshore market in Africa are particularly positive from a climate perspective, including significant reductions in Algeria, both in upstream flaring activity and performance. A continental production decline, as well as reduced output from mature offshore wells, helped lower Africa’s environmental impact associated with flaring.

A rebound in flaring activity is, however, likely this year as global fossil fuel demand increases with the relaxation of Covid-19-related restrictions, and supply remains tight due to sanctions on Russian fuel over its invasion of Ukraine in late February.

“Flaring represents about 30% of the total carbon dioxide emissions produced by the oil and gas industry, and the practice has come under increased scrutiny over its environmental impact in recent years. Even with the backdrop of the pandemic and supply decline, there are still signs that the latest improvements could be partially sustained,” says Rystad Energy analyst Dzenana Tiganj.


Many exploration and production (E&P) players have set ambitious targets to end flaring, and for many fields reducing flaring remains the first step on the abatement journey. Through satellite data estimation, Rystad Energy detects and tracks flaring activity globally for all oil and gas fields. Satellite analysis shows that global flaring reduction efforts have not seen any significant effect as flaring activity has remained relatively flat for the past 10 years. However, 2020 marked a step in the right direction, and the 2021 estimates suggest the trend is continuing.

The shale sector's downward momentum of flaring activity is the most striking reduction in recent years. On a per barrel of oil equivalent (boe) basis, tight oil flaring has dropped by 60% from 2019 to 2021. Other onshore production flaring continues to stand out, with flaring intensity exceeding 7 kilograms of CO2 per boe in 2021. The other supply segments show very marginal, almost flat developments.

Regional breakdown

With a clear global downward trend from 2019 to 2021, comparing flaring volumes to pre-pandemic 2019 levels provides an interesting look at the regional differences in the upstream sector. Africa, North America, Australia, and Europe show persistently decreasing flaring activity, whereas other regions remain flat.

Africa continues the downward trend with significant developments in the offshore segment. The continent’s CO2 emissions from offshore flaring decreased by 4 million tonnes from 2019 to 2021. This trend is primarily driven by the abandonment of mature assets, production declines for mature assets, and increased production from less mature fields.

With production declining from 2019 to 2020, Angola and Nigeria alone reduced offshore flaring volumes by over 2 million tonnes of CO2 and continued with a flat development into 2021. Algeria also delivered significant decreases in overall volumes and flaring per boe in 2021. The estimated reduction totaled 3 million tonnes of CO2, and the intensity dropped from almost 18 kilograms per boe to 13 kilograms per boe. This marks a significant shift for a country where the norm has been a steady increase in flaring over the last decade.

North America has been driving global flaring decreases from 2019 onwards, with shale focusing on operational efficiency improvements. The US continues to make up ground with persistent efforts to eliminate routine flaring at shale production sites and operators communicating better production practices and infrastructural improvements. Satellite data shows substantially decreased flaring volumes and increased on-site utilization or redirection of gas for other purposes. US shale production contributed approximately 38% of upstream flaring in North America in 2021, compared to 68% in 2019. 

Considering all supply segments, including shale, the US continued to perform well throughout 2021, with a decrease of more than 4 million tonnes of CO2 from 2020 and an overall reduction of flaring intensity by an estimated 30%, reaching 1 kilogram per boe in 2021.

Offshore Europe continues to decrease routine flaring, with the UK being a key driver, reducing flaring emissions by almost 40% from 2019 to 2021. Key operators, such as UK major BP, have implemented improved practices at the well start-up phase and optimized flaring set points to comply with environmental targets and increase fuel efficiency.


While regional developments showcase the global effort to reduce flaring on multiple fronts, the major contributors to global upstream flaring remain the same – namely Russia, Iraq, Iran, Venezuela, Nigeria, the US, Algeria, Mexico, Libya, and China – which combined represent over 70% of global upstream flaring emissions.

By Rystad Energy

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