Goldman Sachs has passed the $1 trillion mark for global M&A mandates this year after winning a place on two multibillion dollar US deals, and is keeping up momentum with a role on FTSE 100 oil and gas company BG Group’s latest transaction.

The bank passed the milestone on Monday after advising on drug giant Merck's $9.5 billion deal for Cubist Pharmaceuticals and alternative investor Blackstone's sale of California office buildings for $3.5 billion, according to data from Dealogic.