George J. Damiris , , , Chief Executive Officer and President

Mr. Damiris has served as Chief Executive Officer and President since January 2016. He previously served as Executive Vice President and Chief Operating Officer from September 2014 to January 2016 and as Senior Vice President, Supply and Marketing from January 2008 until September 2014. Mr. Damiris has served as Chief Executive Officer of HLS since November 2016 and as President of HLS since February 2017. Mr. Damiris joined Holly Corporation in 2007 as Vice President, Corporate Development after an 18-year career with Koch Industries, where he was responsible for managing various refining, chemical, trading, and financial businesses.

Doug S. Aron , , , Executive Vice President and Chief Financial Officer

Mr. Aron has served as Executive Vice President and Chief Financial Officer since the merger in July 2011. Mr. Aron also serves as Executive Vice President of HLS since October 2015. Mr. Aron previously served as Executive Vice President and Chief Financial Officer of HLS from November 2012 to October 2015 and from July 2011 through December 2011. Prior to joining the Company, he was Executive Vice President and Chief Financial Officer of Frontier from 2009 until 2011. Additionally, he served as Vice President-Corporate Finance of Frontier from 2005 to 2009 and Director-Investor Relations from 2001 to 2005. Prior to joining Frontier, Mr. Aron was a lending officer for Amegy Bank.

Thomas G. Creery , , , Senior Vice President, Commercial

Mr. Creery was appointed Senior Vice President, Commercial in January 2016. He previously served as Vice President, Crude Supply from October 2008 to January 2016 and Vice President, Crude Supply and Planning from January 2006 to October 2008. Prior to joining HollyFrontier, Mr. Creery served at Unocal Corporation for 25 years in a variety of locations based in Calgary, Los Angeles, Singapore and Houston.

James M. Stump , , , Senior Vice President, Refining

Mr. Stump has served as Senior Vice President, Refining (formerly called Senior Vice President, Refinery Operations) since the merger in July 2011. During his 21 years at Frontier, Mr. Stump held various positions, including serving as Vice President – Refining Operations for Frontier Refining and Marketing from 2009 until July 2011, and as Vice President and Refining Manager from 2002 to 2009.

Denise C. McWatters , , , Senior Vice President, General Counsel & Secretary

Ms. McWatters has served as Senior Vice President, General Counsel and Secretary since January 2013. She previously served as Deputy General Counsel from October 2007 until May 2008 and as Vice President, General Counsel and Secretary from May 2008 until January 2013. Prior to joining the Company, Ms. McWatters served as the General Counsel of The Beck Group from 2005 through October 2007. Ms. McWatters also has served as Senior Vice President, General Counsel and Secretary of HLS since January 2013, Vice President, General Counsel and Secretary of HLS from May 2008 until January 2013 and Deputy General Counsel of HLS from October 2007 to April 2008.

Michael C. Jennings , , , Chairman of the Board

Director Since:

2011

Principal Occupation:

Chairman of the Board of HollyFrontier Corporation

Business Experience:

Mr. Jennings has served as Chairman of the Board since January 2017, a position be previously held from January 2013 until January 2016. Mr. Jennings served as Executive Chairman from January 2016 until his retirement in January 2017. Mr. Jennings served as Chief Executive Officer and President from the merger of Holly Corporation (“Holly”) and Frontier Oil Corporation (“Frontier”) in July 2011 until January 2016. Mr. Jennings served as the Chief Executive Officer of Holly Logistic Services, L.L.C. (“HLS”) from January 2014 until November 2016 and as the President of HLS from October 2015 until February 2016. Mr. Jennings served as President and Chief Executive Officer of Frontier from 2009 until the merger of Holly and Frontier in July 2011. He served as Executive Vice President and Chief Financial Officer of Frontier from 2005 until 2009.

Additional Directorships:

Mr. Jennings served as Chairman of the board of directors of Frontier from 2010 until the merger in July 2011 and served as a director of Frontier from 2008 to July 2011. He currently serves as a director of ION Geophysical Corporation and HLS, the general partner of the general partner of Holly Energy Partners, L.P.

George J. Damiris , , , Chief Executive Officer and President

Director Since:

2015

Principal Occupation:

Chief Executive Officer and President of HollyFrontier Corporation, and Chief Executive Officer and President of Holly Logistic Services, L.L.C.

Business Experience:

Mr. Damiris has served as Chief Executive Officer and President since January 2016. He previously served as Executive Vice President and Chief Operating Officer from September 2014 to January 2016 and as Senior Vice President, Supply and Marketing from January 2008 until September 2014. Mr. Damiris has served as Chief Executive Officer of HLS since November 2016 and as President of HLS since February 2017. Mr. Damiris joined Holly Corporation in 2007 as Vice President, Corporate Development after an 18-year career with Koch Industries, where he was responsible for managing various refining, chemical, trading, and financial businesses.

Additional Directorships:

Mr. Damiris serves as a director of Holly Logistic Services, L.L.C., the general partner of the general partner of Holly Energy Partners, L.P., since February 2016 and as a director of Eagle Materials Inc. since September 2016.

Douglas Y. Bech , , , Chairman and Chief Executive Officer of Raintree Resorts International

Director Since:

2011

Principal Occupation:

Chairman and Chief Executive Officer of Raintree Resorts International

Business Experience:

Mr. Bech has served as the Chairman and Chief Executive Officer of Raintree Resorts, or its predecessors, since 1997. Raintree Resorts is engaged in resort development, vacation ownership sales and resort management. From 1970 through 1997, Mr. Bech served in various capacities, including as a partner, of several large international law firms practicing in the area of corporate finance and securities transactions.

Additional Directorships:

Mr. Bech served as a director of Frontier from 1993 until the merger in July 2011 and as an independent trust manager of Moody National REIT II, Inc. from August 2014 until February 2016. Mr. Bech has served as a director of j2 Global, Inc. since 2000 and of eFax.com from 1988 until it was acquired by j2 Global, Inc. in 2000. Mr. Bech has served as an independent trust manager of CIM Commercial Trust Corporation since March 2014.

Leldon Echols , , , Investor

Director Since:

2009

Principal Occupation:

Investor.

Business Experience:

Mr. Echols has been an investor since 2006. Before becoming an investor, Mr. Echols served as Executive Vice President and Chief Financial Officer of Centex Corporation from 2000 until 2006. Before joining Centex, Mr. Echols held various positions, including managing partner, at Arthur Andersen LLP from 1978 until 2000.

Additional Directorships:

Mr. Echols is currently is a member of the boards of directors of Trinity Industries, Inc., EnLink Midstream, GP, LLC, the general partner of EnLink Midstream Partners, LP (formerly known as Crosstex Energy, L.P.) and EnLink Midstream Manager, LLC, the managing member of EnLink Midstream, LLC. Prior to the closing of the business combination among Devon Energy Corporation, Crosstex Energy, Inc. and Crosstex Energy, L.P. in March 2014, Mr. Echols served on the board of directors of Crosstex Energy, L.P. and Crosstex Energy, Inc.

R. Kevin Hardage , ,

Director Since:

2011

Principal Occupation:

Chief Executive Officer of Turtle Creek Trust Company, Co-founder, President and Portfolio Manager of Turtle Creek Management, LLC and a non-controlling manager and member of TCTC Holdings, LLC.

Business Experience:

Mr. Hardage has served as Chief Executive Officer of Turtle Creek Trust Company, a private trust and investment management firm, since 2009 and has served as President and Portfolio Manager of Turtle Creek Management, a registered investment advisory firm, since 2006. In addition, Mr. Hardage serves as a non-controlling manager and member of TCTC Holdings, LLC, a bank holding company that is a banking, securities and investment management firm.

Robert J. Kostelnik , , , Partner at Glenrock Recovery Partners, LLC

Director Since:

2011

Principal Occupation:

Mr. Kostelnik has served as a principal of Glenrock Recovery Partners since January 2012. Glenrock Recovery Partners assists energy, pipeline, and terminal companies with maximizing the value of non-fungible liquid hydrocarbons, and provides health, safety and environmental compliance and project management consulting services. Mr. Kostelnik served as the President and Chief Executive Officer of Cinatra Clean Technologies, Inc. from 2008 thru 2011. Cinatra provides tank cleaning systems to refining pipelines and terminals. Prior to his retirement in 2007, Mr. Kostelnik served in a number of senior positions during his 16 years with CITGO Petroleum Corporation, including as Vice President of Refining. During that time, Mr. Kostelnik was responsible for, among other things, the creation & implementation of the Health, Safety & Environmental Management System as well as environmental compliance & improvement. CITGO is engaged in the refining and marketing of petro-chemical products.

James H. Lee , ,

Director Since:

2011

Principal Occupation:

Managing General Partner and Principal Owner of Lee, Hite & Wisda Ltd.

Business Experience:

Mr. Lee has served as the Managing General Partner of Lee, Hite & Wisda Ltd., an oil and gas consulting and exploration firm, since founding the firm in 1984.

Additional Directorships:

Mr. Lee served as a director of Frontier from 2000 until the merger in July 2011 and as a director of Forest Oil Corporation from 1991 until the merger of Forest Oil Corporation and Sabine Oil & Gas LLC in December 2014.

Franklin Myers , , , Investor

Director Since:

2011

Principal Occupation:

Investor

Business Experience:

Mr. Myers has been an investor since 2009. In addition, Mr. Myers serves as a senior director of Quantum Energy Partners, a private equity firm, since February 2013. Mr. Myers served as an operating advisor to Paine & Partners, LLC, a private equity firm, from 2009 through 2012 and as Senior Advisor to Cameron International Corporation, a publicly traded provider of flow equipment products, from 2008 until 2009. He served Cameron in various other capacities, including as Senior Vice President and Chief Financial Officer from 2003 through 2008, President of Cameron’s compression business from 1998 through 2001 and Senior Vice President and General Counsel from 1995 through 1999. In addition, Mr. Myers served as Senior Vice President and General Counsel of Baker Hughes Incorporated from 1988 through 1995 and as an associate and then a partner at Fulbright & Jaworski from 1978 through 1988.

Additional Directorships:

Mr. Myers served as a director of Frontier from 2009 until the merger in July 2011. He currently serves as a director of Forum Energy Technologies, Inc., Ion Geophysical Corporation and Comfort Systems USA, Inc.

Michael E. Rose , , , Investor

Director Since:

2011

Principal Occupation:

Investor

Business Experience:

Prior to his retirement in 2004, Mr. Rose served in a number of senior positions during his 24 years with Anadarko Petroleum Corporation, most recently serving as Executive Vice President Finance and Chief Financial Officer of Anadarko from 2000 until his retirement.

Additional Directorships:

Mr. Rose served as a director of Frontier from 2005 until the merger in July 2011.

Tommy A. Valenta , ,

Director Since:

2010

Principal Occupation:

Retired

Business Experience:

Mr. Valenta served as the President and Chief Executive Officer of Chaparral Steel Company from 2005 until 2007, when he retired. Prior to joining Chaparral Steel, Mr. Valenta was with Texas Industries, Inc. for 37 years where he held various positions, including Executive Vice-President and Chief Operating Officer — Steel.