Occidental Petroleum Corporation ( Oxy ) is an international US-based company, which operates in the field of exploration and production of oil and natural gas. It was founded in 1920. The current chairman and CEO Stephen I. Chazen. From 1990 to 2013 this was Ray Irani. Formative for the development of the company was also the period under Armand Hammer 1953 until 1986.
Became famous for Occidental Petroleum in 1988 by the disaster of the oil rig Piper Alpha. Currently (2006) operates as Occidental Petroleum Occidental Oil & Gas Corp. Occidental Petroleum promotes in: United States, Australia, Canada, Colombia, Ecuador, Nigeria, Oman, Pakistan, Peru, Qatar, Russia and Yemen. The State of Ecuador, however, announced in May 2006, one-sided concession contracts with Oxy. The group is accused of numerous human rights violations in the territory of the Shuar Indians, which is why many Ecuadorians calling on the state to terminate the contract with this company.
In the auctions of the Iraqi oil ministry awarded a consortium consisting of the Italian ENI, the Korea Gas Corporation ( Koga ) and Occidental Petroleum of the contract for the Zubair oil field, named after the nearby town of Zubair. The field contains estimated reserves of at least 6.6 billion barrels of oil.
The Occidental Petroleum is with Occidental Chemical Corporation ( OxyChem ), OxyVinyls, and Indspec Chemical Corporation owner of numerous chemical plants. The OxyChem is North America 's second largest PVC manufacturer. The Indspec from Petrolia (Pennsylvania) is the world's largest manufacturer of resorcinol and resorcinol.