National Electric Power Company (NEPCO) said that the experimental supply of natural gas by U.S.-based Noble Energy Inc. has started as of today.

The experimental pumping, which will last for three months, is aimed at testing the infrastructure prior to the actual commercial supply, NEPCO said.

The gas supply is in line with an agreement signed between the two companies in 2016.

Under the agreement, Noble Energy will provide gas worth 15 billion dollars to the Kingdom for a period of 15 years, or 300 million cubic feet on a daily basis.

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