Offshore drilling company Valaris has decided to retire three semi-submersible drilling rigs from its fleet as part of its ...

One of the world's biggest oil producers has sought global PR expertise as it expands a controversial deep sea offshore sub-salt drilling program. Against the backdrop of one of the world's worst ...

Valor adds that the drilling global failure rate for the oil ... the end of 2008 some 30 wells have been drilled in search of sub-salt oil targets in the Santos and Campos basins, with an overall ...