Arctikmorneftegazrazvedk 

  Diamond Offshore

Atwood Oceanic

          B.J.Drilling Services 

PTSC

Baker Hughes

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KS Drilling Company

PV. Drilling

 

          Vietsovpetro

Rowan Companies

Transocean Vietnam

Seadrill Management

Songa Offshore Drilling Company

Schlumberger

Shelf Drilling

UMW Drilling

Premium Drilling

Scorpion Offshore

Northern Offshore

Vantage Drilling 

Hercules Offshore

ODFJELL Drilling

MODEC

PV Trans

Essar