Bahrain is in the Persian Gulf.

Bahrain’s National Oil and Gas Authority (NOGA) announced the largest ever discovery of oil and gas, with tight oil amounting to at least 80 billion barrels and gas reserves on the order of 10-20 trillion cubic feet.

The discovery, made within the 2,000-square-kilometer Khalij Al-Bahrain Basin, is located in shallow waters off the Kingdom’s west coast, close to an existing oil field with ready-to-connect-to facilities, according to Halliburton, which is involved in the project.

A separate discovery of significant gas reserves in two accumulations below Bahrain’s main gas reservoir has been confirmed, according to Bahrain's news agency.

The find is reported to be Bahrain's largest since the country began producing oil in 1932.

Bahrain sits between Saudi Arabia, the largest oil exporter, and Qatar, the biggest shipper of liquefied natural gas. Bahrain has crude reserves of 124.6 million barrels — fewer than Poland — and 92.03 billion cubic meters of natural gas, according to figures quoted by Bloomberg. Saudi Arabia, by comparison, has 266.5 billion barrels of crude reserves, while Qatar has 24.3 trillion cubic meters of gas.

Halliburton will drill two appraisal wells in 2018 to further evaluate reservoir potential, optimize completions and initiate long-term production.

Project geologists say that the presence of a layer with moderate conventional reservoir properties on top of an organic-rich source rock creates a self-sourcing and trapping system, enhancing production and economic viability.