During gameplay press the '~' (tilde) key to bring up the cheat console and then enter the following codes (without the quotes) and press 'Enter' to enable the corresponding effect in the game.

Gives 1,000 Fuel:
Enter the code 'Fuel'

Gives 1,000 Metals:
Enter the code 'Metal'

Gives 1,000 Money:
Enter the code 'Money'

Gives 1,000 Rare Materials:
Enter the code 'Rare'

Gives 1,000 Crude Oil:
Enter the code 'crudeoil'

Gives 1,000 Energy:
Enter the code 'Energy'

Gives 1,000 Supplies:
Enter the code 'supplies'