Law firm Mayer Brown has said private equity funds have accelerated acquisitions of European oil & gas assets, with 16 deals worth £12 billion announced in the last year.
Upstream oil and gas deal activity in June saw a $4.3billion decrease in comparison with the previous month.
Research and consulting firm GlobalData said work, including capital markets and mergers and acqusitions, totalled $19.3billion from 125 transactions in June, while in May the total was $23.6billion across 119 deals.
Analysts said Europe, the Middle East and Africa led the global acquisitions market in terms of value last month with a 39% regional share totalling $4billion.