Founded in 1907, WSPA is the oldest petroleum trade association in the United States.
Western States Petroleum Association (WSPA) is a non-profit trade association that represents companies that account for the bulk of petroleum exploration, production, refining, transportation and marketing in the five western states of Arizona, California, Nevada, Oregon, and Washington. WSPA’s headquarters is located in Sacramento, California. Additional WSPA locations include offices in Torrance, Concord, Ventura, Bakersfield, and Olympia, Washington.
WSPA is dedicated to ensuring that Americans continue to have reliable access to petroleum and petroleum products through policies that are socially, economically and environmentally responsible. We believe the best way to achieve this goal is through a better understanding of the relevant issues by government leaders, the media and the general public. Toward that end, WSPA works to disseminate accurate information on industry issues and to provide a forum for the exchange of ideas on petroleum matters.
Meet Our Staff

Catherine Reheis-Boyd
President
Oyango Snell
General Counsel
Jodie Muller
Vice President, Government & External Affairs
Shant Apekian
Vice President of California Policy and Strategic Affairs
Tom Umenhofer
Vice President, Operations
Kevin Slagle
Vice President, Strategic Communications
Steve Slakey
Chief Financial Officer
Tiffany Roberts
Director, Regulatory & Legislative Policy
William Ferrari
Director, Information Technology
Patty Senecal
Director, Southern California Operations
Suzanne Noble
Director, Production Operations
Bob Poole
Director, Production State & Coastal Issues
Bob Brown
Director, Bay Area Operations
Julie Berge
Director, Strategic Communications
Kevin Buchan
Manager, Bay Area Region
Bridget McCann
Manager, Southern California Region
Kara Siepmann
Manager, Strategic Communications
Margo Parks
Manager, California Policy Advocate
Luis Sanchez
Manager, California Policy Advocate
Argelia León
Manager, Strategic Partnerships
Sophie Ellinghouse
Associate Counsel
Kris Hollinger
Manager, Finance and Accounting
Jessica Spiegel
Manager, Northwest Climate Change & Legislative Policy
Alexander Lee
Coordinator, Legal Operations
Fabian Urbina
Coordinator, California Policy
Deneal Hooper
Accounting Clerk