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Occidental Petroleum Company History Timeline


Founded in 1920, Occidental's success is built on technical expertise, business acumen, strong partnerships and our proven ability to deliver lasting results.

The company was founded in 1920 and is headquartered in Los Angeles, CA.“


Occidental has been publicly traded on the New York Stock Exchange since 1964.


More than 1.2 billion total barrels of oil have been produced at Colombia’s Caño Limón Field since it was discovered by Occidental in 1983.


2. OxyChem was established in 1987.


1998: Occidental became the largest natural gas producer in California with the purchase of the United States Department of Energy’s 78-percent interest in Elk Hills Naval Petroleum Reserve in Kern County.


2000: The purchase of Altura Energy, Ltd., in the Permian Basin of West Texas and southeast New Mexico made Occidental the largest oil producer in Texas.


Occidental has been a participant in the Dolphin Gas Project since 2002.


2004: Occidental signed a new production-sharing contract for the Mukhaizna Field, one of the largest in Oman.


2006: Occidental acquired production assets from Vintage Petroleum in Argentina, Bolivia, California and the Middle East.


2007: The Dolphin Gas Project, one of the largest energy projects ever undertaken in the Middle East, became fully operational.


2008: Occidental signed agreements for various projects in the Middle East region, including an agreement to develop gas fields and to explore for potential new discoveries in the Sultanate of Oman.


2009: Occidental and Mubadala Development Company (Mubadala) with the National Oil and Gas Authority of Bahrain (NOGA) started operations for the further development of the Bahrain Field.


2010: Occidental announced the acquisition of assets in South Texas and North Dakota and the selling of its assets in Argentina.


2011: Occidental acquired a 40-percent participating interest in the Al Hosn Gas Project.


2012: Occidental’s cryogenic gas plant at Elk Hills came online in July, improving operational efficiency and production, and enhancing liquids yields.


Occidental returned $1.6 billion to shareholders in 2013 in the form of dividends.

At year-end 2013, Occidental had total proved reserves of 3.5 billion BOE – a new company record.

In 2013, Occidental achieved average worldwide oil and gas production of 763,000 barrels of oil equivalent (BOE) per day.

Occidental’s market capitalization at year-end 2013 was $75.7 billion.


2014: Occidental announced it reached a definitive agreement to sell its Hugoton Field assets.

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Zippia gives an in-depth look into the details of Occidental Petroleum, including salaries, political affiliations, employee data, and more, in order to inform job seekers about Occidental Petroleum. The employee data is based on information from people who have self-reported their past or current employments at Occidental Petroleum. The data on this page is also based on data sources collected from public and open data sources on the Internet and other locations, as well as proprietary data we licensed from other companies. Sources of data may include, but are not limited to, the BLS, company filings, estimates based on those filings, H1B filings, and other public and private datasets. While we have made attempts to ensure that the information displayed are correct, Zippia is not responsible for any errors or omissions or for the results obtained from the use of this information. None of the information on this page has been provided or approved by Occidental Petroleum. The data presented on this page does not represent the view of Occidental Petroleum and its employees or that of Zippia.

Occidental Petroleum may also be known as or be related to OXY, Occidental Petroleum, Occidental Petroleum Corporation and Oxy.