Brazilian oil company Petrobras was rated as the world's most sustainable oil/gas company while in a separate rating chip maker Intel received accolades for being the top corporate citizen.

Petrobas came out on top in the 5th annual ratings for sustainability by the firm Management & Excellence. The report measures oil/gas companies' "compliance with 387 accepted international standards in sustainability, corporate governance, social responsibility, ethics and transparency. "

Petrobras and Total were the only companies to score 90 percent or higher. Shell, BP and Statoil/hydro rounded out the top five, while U.S. companies Chevron and ExxonMobil scored 73 and 68. The three companies with the biggest oil/gas reserves are all state owned and were rated least sustainable by M&E -- PDVSA, Saudi Aramco and Abu Dhabi NOC.

Corporate Responsibility Officer rated Intel first in its rankings of 100 top corporate citizens for 2008. The list is based on ratings for the company's policies in Climate Change, Employee Relations, Environment, Financial, Governance, Human Rights, Lobbying and Philanthropy. Eaton, Nike, Deere and Co. and Genetech rounded out the top 5 on CRO's list.

Companies such as Petrobras and Intel that are respected for their responsibility and sustainable practices benefit beyond their bottom lines by attracting investors and employees.