- south china sea
- russia
- caspian sea
- india (Oil and Gas Locations in India)
- pakistan
- gulf/ persian gulf
- warm deserts of northern hemisphere
- iran
- saudi arabia
- north sea
- alaska (USA)
- mainland USA
- canada
- gulf of mexico
- Venezeula
- south american country
- but part of OPEC
- Organization of petroleum exporting countries
- west asia
Also Refer: