Member states of the Organization of Arab Exporting Countries (OAPEC) had unveiled 34 oil and natural gas discoveries in 2013, said a report by the organization on Wednesday.
OAPEC's monthly report said that the most prominent discovery was in Algeria's southern region of Hassi Messaoud.
An oil well was discovered in the region containing around 1.3 billion barrels.
The report noted that the discovery of an estimated 71 billion cubic meters of natural gas at Qatar's Al-Shimal field was the highlight natural gas discoveries of 2013.
OAPEC members embarked on several key projects in 2013, said the report, noting that Saudi Arabia began its Karan gas project which produced 4.2 million cubic meters of gas per day.
Saudi Arabia also embarked on its heavy crude oil project at the Manifa refinery which will produce around half a million barrels per day.