X0305 4 2012-03-31 0 0001172139 BILL BARRETT CORP BBG 0001237472 MOGG JIM W 249401 EAST COUNTY ROAD 100 HYDRO OK 73048 1 0 0 0 Common Stock 2012-03-31 4 J 0 1518 26.01 A 21144 D The Reporting Person is a director of the Issuer and elected to receive his director fees in the form of the Issuer's common stock issued pursuant to the Issuer's 2004 Stock Incentive Plan. Pursuant to this arrangement, after each quarter, shares with a value equal to the fees payable for that quarter, calculated using the closing price on the New York Stock Exchange ("NYSE") on the last trading day of the quarter, are delivered to each eligible director who elected before that quarter to receive shares in payment of the director fees. Includes 3,139 shares subject to forfeiture and vesting requirements. /s/ Francis B. Barron, as Attorney-in-Fact 2012-04-03