The two-tranche bond was priced under BHP's euro medium term note program.

The bond issue comprises €1.25 billion of 2.125% bonds due in 2018 and €750 million 3% bonds due in 2024.

It comes after the company sold $5.25 billion in bonds in the US market in February, with proceeds to be used to repay existing debt.

Those bonds were assigned a rating of A1 by Moody's.

BHP shares were unchanged at $A30.93 in Australia this morning after its London shares fell 4.4% overnight.