Petro Andina Conference Call & Webcast

Petro Andina will host a conference call and webcast at 10.00 a.m. MST (8.00 a.m. ET), Wednesday August 15, 2007 to discuss the Company's 2007 second quarter operating and financial results. The call will be open to analysts, investors and all interested parties.

To Join by the web / webcast please follow this link. You will be asked for your name and email address. Please enter them and click submit. You will be joined into the webcast.

To participate in the conference call by Telephone, please dial 1-866-898-9626 or (403) 410-9170. Pass codes are not required.