Hisham Al Siyabi – Biography

Last update: May 6, 2026

Executive profile

Hisham Al Siyabi joined Shell in 1999.

Hisham Al Siyabi is currently

Gas Director at Petroleum Development Oman - View - Petroleum Development Oman org chart



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Education

Hisham Al Siyabi has a Bachelor of Science in Geology from University of South Carolina in 1992 and a PhD in Geology from Colorado School of Mines in 1998.

They have also studied at University of South Carolina :

Find more alumni from University of South Carolina


They have also studied at Colorado School of Mines :

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The colleagues of Hisham Al Siyabi

Company Colleagues
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  • In the Oil & Gas industry, Hisham Al Siyabi has 23,578 colleagues in 1,350 companies located in 105 countries. 12,354 executive movements have been recorded in the last 12 months. Learn more about Oil & Gas.

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Get in Touch

Here are a few tips for establishing great contacts.

Through the switchboard, call Petroleum Development Oman at +968 ... and ask for Hisham Al Siyabi.

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