Considering the situation described above, when Global Petroleum negotiated a deal with Saudi Arabia, this is an example of Bartering.
Bartering is a transaction agreement whereby both parties agree to pay with goods or services without using money.
Therefore, in this situation, when Global Petroleum negotiated with Saudi Arabia to receive oil as partial payment over 20 years. This is an example of Bartering.
Hence, in this case, it is concluded that the correct answer is Bartering.
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