An individual named Sergio Andres Sanabria received a course certificate on August 22, 2016 from Duke University for successfully completing an online non-credit course on Oil & Gas Industry Operations and Markets through the online platform Coursera. The certificate was authorized by Professor Lincoln Pratson of Duke University's Earth & Ocean Sciences department at the Nicholas School of the Environment.

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CERTIFICATE
08/22/2016
Sergio Andres Sanabria
Oil & Gas Industry Operations and Markets
an online non-credit course authorized by Duke University and offered through
Coursera
has successfully completed
Lincoln Pratson
Professor
Earth & Ocean Sciences, Nicholas School of the Environment
Verify at coursera.org/verify/G2EGT5SELP4V
Coursera has confirmed the identity of this individual and
their participation in the course.