X0303 4 2010-12-31 false 0000778438 BERRY PETROLEUM CO BRY 0001480398 Ciotti George W 1999 BROADWAY, SUITE 3700 DENVER CO 80202 false true false false VP of Corp Development Class A Common Stock 5256 D Class A Common Stock 2010-12-31 4 J false 27 0 A 1652 I Held in 401(k) account 2008 Restricted Stock Units 0 2009-12-11 2018-12-11 Class A Common Stock 4875 3250 D 2009 Restricted Stock Units 0 2010-12-11 2019-12-11 Class A Common Stock 7465 5599 D Perf Based RSUs 3-16-10 0 2012-12-31 2012-12-31 Class A Common Stock 5633 5633 D 1 for 1 Restricted Stock Units vest 25% per year from date of grant. 1 for 1 Restricted Stock Units vest 25% per year from date of grant. Shares of Common Stock acquired by the reporting person in the Company's 401(k) Plan. All transactions were at market and were non-discretionary. Kenneth A. Olson Under POA for George W. Ciotti 2011-01-04