Berkshire Hathaway report on
SHAREHOLDER PROPOSAL REGARDING BERKSHIRE’S INVESTMENT IN PETROCHINA

PetroChina, CNPC, and Sudan: Perpetuating Genocide - Jason Miller

Report on Investing in the Sudan
Prepared for the Steering Committee of University Council
by the Social Responsibility Advisory Committee
University of Pennsylvania
March 3, 2006

Harvard ACSR statement on PetroChina

Report on Investing in the Sudan
Prepared for the Corporation Committee on Investor Responsibility
by the Advisory Committee on Investor Responsibility
Yale University
January 31, 2006

An Analysis of Select Companies’ Operations in Sudan: A Resource for Divestment December 13, 2005
A Report by The Allard K. Lowenstein International Human Rights Clinic and
The Allard K. Lowenstein International Human Rights Project
Yale Law School