Bu araba doğal gazla çalışır.
- This car runs on natural gas.
Kömür ve doğal gaz doğal yakıtlardır.
- Coal and natural gas are natural fuels.
Natural-gas prices.
... it's not just oil and natural gas production at the moment ...
... Number three, we've got to control our own energy. Now, not only oil and natural gas, ...