HollyFrontier competitors

John, was appointed executive vice president and chief operating officer – North America, effective Jan. 1, 2014, having been region vice president – Permian Region, from 2010 through 2013. He previously served as vice president – Business Development, since January 2004, and production manager for the Gulf Coast Region since April 2003. Prior to that, Christmann held various positions of increasing responsibility in the business development area since joining the company in 1997. Previously, he was employed by Vastar Resources/ARCO Oil and Gas Company in business development, crude oil marketing and engineering assignments. Christmann received his bachelor’s degree in petroleum engineering from the Colorado School of Mines and MBA from Southern Methodist University.

David Constable is a Canadian engineer and businessman. He was appointed the CEO of Sasol, an energy and chemical company, in July 2011, and announced that he would leave the role in spring 2016. He concurrently served as the company's president.

I'm Holly , Born in Lincoln Nebraska raised in Virginia Beach VA off the airforce base I'm 42 born 12/01/1982 . I love new begining and discovering all possibilities in life and finding better understanding of my purpose . I have many goals I'm working towards but my ultimate accomplishment would be to continue building the fundamentals in life to sustain the blessing God have given me .

Mr. Hennigan is president and chief executive officer of Marathon Petroleum Corporation. He is also chairman of the board and president and chief executive officer of MPLX GP LLC. Prior to joining MPLX GP LLC in 2017, Mr. Hennigan was president, crude, NGL and refined products of the general partner of Energy Transfer Partners L.P. Prior to that, he served as president and chief executive officer of Sunoco Logistics Partners L.P. He was responsible for all operations and business activities, including setting the direction, strategy and vision for the company. Mr. Hennigan began his career with Sunoco, Inc. in 1981 at the Marcus Hook refinery, working in various engineering and operations positions before joining the business planning department in 1990. In 1992, he transferred to the Philadelphia refinery before joining the corporate business planning group in 1993. There, he worked on various strategies for northeast refining before returning to Marcus Hook as business manager in 1996. In 1998, he returned to Sunoco’s corporate office as manager, financial analysis and strategic planning. In 2000, he was named general manager, northeast refining wholesale fuels marketing and product supply and in 2001 was appointed vice president, product trading, sales and supply. In 2006, Mr. Hennigan was appointed senior vice president, supply, trading, sales and transportation and senior vice president, business improvement in 2008. Mr. Hennigan joined Sunoco Logistics as vice president, business development in 2009. He was named president and chief operating officer in 2010 and was appointed president and chief executive officer in 2012. In 2017, Mr. Hennigan was named president of MPLX GP LLC and in November 2019 was named president and chief executive officer. He assumed his current position on March 18, 2020. Mr. Hennigan holds a Bachelor of Science degree in chemical engineering from Drexel University. Mr. Hennigan serves on the board of directors of Marathon Petroleum Corporation and MPLX GP LLC.

Mr. Nimbley has served as PBF's Chief Executive Officer since June of 2010 and was appointed to the board of directors in October of 2014 and became Chairman in June 2016. Prior thereto, he served as a Principal for Nimbley Consultants LLC from June 2005 to March 2010, where he provided consulting services and assisted on the acquisition of two refineries. He previously served as Senior Vice President and Head of Refining for Phillips Petroleum Company and subsequently Senior Vice President and head of Refining for ConocoPhillips' domestic refining system (13 locations) following the merger of Phillips and Conoco. Before joining Phillips at the time of its acquisition of Tosco in September 2001, Mr. Nimbley served in various positions with Tosco Corporation and its subsidiaries starting in April 1993.

Jeffrey 'Jeff' Ramsey is a President/CEO at Flint Hills Resources.