X0304 4 2011-09-08 0 0000048039 HollyFrontier Corp HFC 0001242460 REID JACK P 100 WILD TURKEY ALTO NM 88312 1 0 0 0 Common Stock 2011-09-08 4 S 0 194125 37.5431 D 836227 I by Limited Partnership Common Stock 673 I by 401(k) Plan Common Stock 141200 D The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.90 to $37.89, inclusive. The reporting person undertakes to provide to HollyFrontier Corporation, any security holder of HollyFrontier Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. Represents aggregate holdings of the Reid Family Limited Partnership. The reporting person's ownership was adjusted to reflect the 2-for-1 stock split of HollyFrontier Corporation common stock, which occurred on August 31, 2011. Walter W. Zimmerman, attorney in fact 2011-09-12