Doing Business with Us

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(Versión Español)

Welcome to Occidental's supplier web pages, which provide orientation, support information and tools for prospective or registered suppliers. Occidental Oil and Gas Corporation and its subsidiaries, Occidental Midstream Strategic Development and Centurion Pipeline L.P. are referred to as "Occidental" or "Oxy" in these webpages.

Prospective Supplier

Occidental invites prospective suppliers to complete the prospective supplier registration. To learn more about our operations, please browse the Operations pages under Our Businesses. Please note that completing the prospective supplier registration does not imply a contract, or intent to purchase goods or services from prospective suppliers by Occidental.

Registered Suppliers

iSupplier Portal Access - To access the iSupplier Portal, click here.

The iSupplier Portal is an online self-service tool that allows you to directly access information and conduct transactions. In the future, Occidental may decide to exclusively to use suppliers that are registered on its iSupplier Portal.

Important: If your company is currently doing business with Occidental, but does not have​ access to the iSupplier Portal, please contact your Occidental contact person. 

Supplier Help Desk Contact Information

Contact by email or call the applicable phone number on business days from 9 a.m. to 4 p.m. CST for USA or local time for international locations. Supplier Help Desk