Shearman & Sterling acted as counsel to Ecopetrol S.A. in connection with a public offering of $350 million aggregate principal amount of its 4.250% Notes due 2018, $1.3 billion aggregate principal amount of its 5.875% Notes due 2023 and $850 million aggregate principal amount of its 7.375% Notes due 2043. Merrill Lynch, Pierce, Fenner & Smith Incorporated and Morgan Stanley & Co. LLC acted as underwriters. This transaction represented the first time in four years that Ecopetrol had accessed the international capital markets.

Ecopetrol is the largest company in Colombia as measured by revenue, profit, assets and shareholders’ equity and the only vertically-integrated crude oil and natural gas company. It is engaged in a broad range of oil and gas related activities, including exploration and production, refining and petrochemicals, transportation, distribution and marketing, and natural gas.

The following Shearman & Sterling team advised Ecopetrol in the transaction: partners Antonia Stolper (New York–Capital Markets); associates Grissel Mercado (New York–Capital Markets), Antonio Herrera Cuevas (San Francisco–Capital Markets), Jeffrey Tate (Washington, DC–Tax) and Melissa Henkel (Washington, DC–Tax).