The International Association of Oil and Gas Producers (IOGP) has collected environmental data from its member companies every year since 1999. The objective of this programme has been to allow member companies to compare their performance with other companies in the section, with the aim to lead to improvement and more efficient performance. It also contributes to the industry's wish to be more transparent about its operations (IOGP, 2017).

There is growing attention to methane emissions from the oil and gas industry supply chain. Natural gas operations contribute to global anthropogenic methane emissions and if not properly managed may undermine the widely recognized environmental benefit of gas utilization. Nevertherless, statistics for methane emissions, particularly from O&G sector, are widely variable. This is not only a risk for climate change mitigation, but also financial and regulatory risk for both investors and operators.

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