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Content analysis
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Filing tables
Filing exhibits
- 20-F Annual report (foreign)
- 1.2 Statutory Reform
- 8.1 List of Subsidiaries of Ecopetrol S.a.
- 12.1 Section 302 Certification of the Chief Executive Officer.
- 12.2 Section 302 Certification of the Chief Financial Officer.
- 13.1 Section 906 Officer Certification.
- 16.1 Pricewaterhousecooper's Letter
- 23.1 Consent of Pricewaterhousecoopers Ltda.
- 23.2 Consent of Ryder Scott
- 23.3 Consent of Gaffney, Cline & Associates
- 23.4 Consent of Degolyer and Macnaughton
- 99.1 Third Party Reserve Report of Ryder Scott
- 99.2 Third Party Reserve Report of Gaffney, Cline & Associates
- 99.3 Third Party Reserve Report of Degolyer and Macnaughton.
EC similar filings
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External links
Exhibit 16.1
Securities and Exchange Commission
100 F Street, N.E.
Washington, DC 20549
July 15, 2011
Commissioners:
We have read the statements made by Ecopetrol S.A. (copy attached), which we understand will be filed with the Securities and Exchange Commission, pursuant to Item 16F of Form 20-F, as part of the Form 20-F of Ecopetrol S.A. dated July 15, 2011. We agree with the statements concerning our Firm in such Item 16F on Form 20-F.
Very truly yours,
\s\ PricewaterhouseCoopers Ltda.
PricewaterhouseCoopers Ltda.
PricewaterhouseCoopers Ltda., Calle 100 No. 11A-35, Bogotá, Colombia
Tel: (57-1) 634 0555, Fax: (57-1) 218 8544, www.pwc.com/co