PETROTECHENGINEERING LTD. 7536Manzanita Place, Burnaby, B. C., Canada V3N 4X1 Phone: (604) 525 6896 Email ***@***
Exhibit 10.25.2
PETROTECH ENGINEERING LTD.
7536 Manzanita Place, Burnaby, B. C., Canada V3N 4X1 Phone: (604) 525 6896
Email: ***@***
March 29, 2013
CONSENT OF PETROTECH ENGINEERING LTD.
We consent to the references to our firm in the form and context in which they appear in the Form 10-K of Osage Exploration and Development, Inc. (the “Report”). We hereby further consent to the inclusion in this Report of estimates of oil and gas reserves contained in our report entitled:
Evaluation of the Interests of Osage Exploration and Development, Inc. in the Guaduas Field in the Middle/Upper Magdalena Valley, Onshore Colombia
and to the inclusion of our report dated March 28, 2013 as an exhibit to the Report for the year ended 12/31/2012.
Signed and Dated March 29, 2013 in the City of Burnaby, British Columbia
| /s/ John Yu |
John Yu, P. Eng.
President of Petrotech Engineering Ltd.
