Oultram was first called up to represent Australia in 2004, where he joined the national under-20 tean to compete in the 2005 IIHF World U20 Championship Division II Group B tournament being held in Puigcerdà, Spain.
On 28 August, Dagobert won a victory over General Manuel la Peña at Puigcerdà.
The acquisition of Puigcerdá was approved on August 25, 1874, by General Serrano and Minister of Marine Rafael Rodriguez Arias.