Algeria is a country in the Western part of North Africa. The capital city is Algiers. It is the largest country in Africa. The name is from the city of Algiers. It is bordered by the Mediterranean Sea in the north, Tunisia in the northeast, Libya in the east, Niger in the southeast, Mauritania and Mali in the southwest, Western Sahara in the west and Morocco in the northwest.The country is asemi-presidential republic consisting of 48 provinces and 1,541 communes. Abdelaziz Bouteflika has been President since 1999.Algeria's population is about 39.5 million people. There are over 40 cities with more than 100,000 people.According to OPEC Algeria has the 17th largest oil reserves in the world and the second largest in Africa, while it has the 9th largest reserves of natural gas. Sonatrach, the national oil company, is the largest company in Africa