NOV Inc.
[ar] فاركو الوطنية لأبار الزيت
[azb] نشنال اویل‌ول وارکو
[da] NOV Inc.
[de] National Oilwell Varco
[fa] نشنال اویل‌ول وارکو
[fi] National Oilwell Varco
[id] National Oilwell Varco
[ms] National Oilwell Varco
[nb] National Oilwell Varco
[ru] National Oilwell Varco