Abu Dhabi National Oil Company is carrying out the development of multiple sour gas fields in the emirate as it aims to exploit some of the most complex and technically challenging gas reservoirs in the region.

Adnoc's sour gas push includes the development of Hail & Ghasha, Dalma and a few additional sour gas assets, which have been undeveloped for years due to environmental and technical challenges.

Together, these projects are thought to be the largest sour gas projects being carried out anywhere in the world this year and would involve more than $20 billion worth of investments.