Roc Oil Company Limited is an independent international petroleum

Petroleum

Petroleum or crude oil is a naturally occurring, flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid organic compounds, that are found in geologic formations beneath the Earth's surface. Petroleum is recovered mostly through oil drilling...

 company based in Sydney

Sydney

Sydney is the most populous city in Australia and the state capital of New South Wales. Sydney is located on Australia's south-east coast of the Tasman Sea. As of June 2010, the greater metropolitan area had an approximate population of 4.6 million people...

, Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. The company was established in 1997 as a privately owned company. In 1999, the company went public by acquiring $150 million in IPO at Australian Stock Exchange

Australian Stock Exchange

The Australian Securities Exchange was created by the merger of the Australian Stock Exchange and the Sydney Futures Exchange in July 2006. It is the primary stock exchange group in Australia....

. In 2004, the company got listed on London Stock Exchange

London Stock Exchange

The London Stock Exchange is a stock exchange located in the City of London within the United Kingdom. , the Exchange had a market capitalisation of US$3.7495 trillion, making it the fourth-largest stock exchange in the world by this measurement...

. In 2008, Roc Oil merged with Anzon Energy Limited which included a takeover of its Australian division Anzon Australia Limited (AEL).

The name of the company derives from a mythical Asian or Arabian bird Roc.

The company operates in Australia, China

China

Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

, Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

 and UK. Estimated number of employees is 160.