Occidental Petroleum 2014 Annual Report Download - page 141

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Occidental Petroleum Corporation
January 30, 2015
Page 9
We are independent petroleum engineers with respect to Occidental. Neither we nor any of our employees have any
interest in the subject properties and neither the employment to do this work nor the compensation is contingent on the results of
our review.
The results of the reserves process review, presented herein, are based on technical analysis conducted by teams of
geoscientists and engineers from Ryder Scott. The professional qualifications of the undersigned, the technical person primarily
responsible for overseeing the review of the reserves information discussed in this report, are included as an attachment to this
letter.
Terms of Usage
The results of our third party reserves process review, presented in report form herein, were prepared in accordance with
the disclosure requirements set forth in the SEC regulations and are intended for public disclosure as an exhibit in filings made with
the SEC by Occidental.
Occidental makes periodic filings on Form 10-K with the SEC under the 1934 Exchange Act. Furthermore, Occidental has
certain registration statements filed with the SEC under the 1933 Securities Act into which any subsequently filed Form 10-K is
incorporated by reference. We have consented to the incorporation by reference in the registration statements on Form S-3 and
Form S-8 of Occidental of the references to our name as well as to the references to our third party report for Occidental, which
appear in the December 31, 2014 annual report on Form 10-K of Occidental, the inclusion in that Form 10-K of such references and
the filing of such report as an exhibit to such 10-K. Our written consent for such use is included as a separate exhibit to the filings
made with the SEC by Occidental.
We have provided Occidental with a digital version of the original signed copy of this report letter. In the event there are any
differences between the digital version included in filings made by Occidental and the original signed report letter, the original signed
report letter shall control and supersede the digital version.
The data and work papers used in the preparation of this report are available for examination by authorized parties in our
offices. Please contact us if we can be of further service.
Very truly yours,
RYDER SCOTT COMPANY, L.P.
TBPE Firm Registration No. F-1580
\s\ Fred Richoux
Fred P. Richoux, P.E.
TBPE License No. 33949
President
[SEAL]
FPR/pl
RYDER SCOTT COMPANY PETROLEUM CONSULTANTS