Oilfield services firm Transocean RIG.Nsaid on Monday it will acquire peer Valaris VAL.N in an all-stock deal valued at $5.8 billion, expanding its exposure across deepwater, harsh-environment and shallow-water basins worldwide.Transocean shares were down 4% at $5.16…<p><p>https://www.marinelink.com/news/transocean-acquire-valaris-b-535486</p></p>