• PT. Patria Utama Humanindo
• PT. Indowell Persada Engineering & Services
• PT. Trikona Prima
• PT. Adimas Kertajaya
• PT. Patra Widya Indonesia
Clients
• PT. Caltex Pacific Indonesia
• Unocal
• Vico
• British Petroleum Indonesia
• TotalFinaElf
• Gulf Resources
• JOB Talisman Tanjung
• Conoco Indonesia
• Medco
• Amoseas
• Sea Union
• PT. Shell Indonesia
• Chevron Indonesia
• Chevron Geothermal Indonesia
• Nexen Petroleum Yemen
• Zadco Abu Dhabi
