If General Atlantic decided to sell its stake, a deal could now garner more interest from investors, the sources said.
A deal could value the company, which assesses global oil prices and provides industry news, at north of 4 billion pounds ($5.08 billion), Reuters previously reported.
Deliberations remain at an early stage and General Atlantic and Hg may decide not to proceed with a transaction, two of the people said.
Argus Media, Hg and General Atlantic declined to comment.
Hg bought half of General Atlantic's 50% stake in Argus in 2019, valuing the business at more than 2 billion pounds then.
Persons:
Adrian Binks, Amy, Jo Crowley, Victoria Farr, Mark Porter
Organizations:
Argus Media, Reuters, Private, Investments, Atlantic, Atlantic's, Argus, Astorg, Thomson
Locations:
GIC, London, Argus, Frankfurt