• SPDC, ExxonMobil, ChevronTexaco, NAOC, POOC 2

  • SPDC, ExxonMobil, ChevronTexaco, NAOC, POOC 1

  • NOAC 1

  • SPDC, NAOC, ELF, CONOIL, POOC 3

  • SPDC, NAOC, ELF, CONOIL, POOC 2

  • SPDC, NAOC, ELF, CONOIL, POOC 1

  • SPDC, ExxonMobil, ChevronTexaco, NAOC, POOC 3

  • NOAC 4

  • NOAC 3

  • NOAC 2