LeadershipChief Executive Officer Chris Wright Chris Wright serves as Chief Executive Officer and Chairman of the Board of Liberty Oilfield Services. Additionally, Chris founded and serves as Executive Chairman of Liberty Resources, a Bakken-focused E&P company and Liberty Midstream Solutions. He has had a lifelong passion for energy and its role in human life. He has spoken on energy to the UK House of Lords, the States Attorneys General, Federal and State Judges, debated the merits of the shale revolution on TV and given over 100 talks.Chris completed an undergraduate degree in Mechanical Engineering at MIT and graduate work in Electrical Engineering at both UC Berkeley and MIT. Chris founded Pinnacle Technologies and from 1992 - 2006 years served as CEO. Pinnacle created the hydraulic fracture mapping industry. Pinnacle's innovations in fracturing practices helped launch commercial shale gas production in the late 1990’s.Chris was Chairman of Stroud Energy, an early shale gas producer, prior to its sale to Range Resources in 2006. Chris currently serves on the Board of Directors for Liberty Resources, Urban Solutions Group, US Ceramics and the Federal Reserve Bank, Denver Branch.Chris has consulted and taught courses on all six inhabited continents and authored / co-authored over 60 technical papers and articles. He has received numerous industry awards and several U.S. patents. Chris also worked on fusion energy, solar energy, and geothermal energy. Chris grew up in Colorado and is a passionate skier, cyclist, climber, and outdoor enthusiast. He serves on the board of numerous nonprofits including PERC, ACE Colorado, ACE Montana, PRI, and the YCCF.Chief Financial Officer Michael Stock Michael serves as CFO after joining Liberty in April 2012. He brings over 25 years of financial and systems implementation experience to the company. Throughout his career, he has been involved in all levels of finance including global financial management, mergers and acquisitions, strategic planning and risk management.Prior to joining Liberty, Michael was CFO for TAS Energy Inc., an innovative Cleantech Energy company in Houston, TX from 2009 to 2012. At TAS Michael was a key part of the raising of Equity from leading investment groups including Kleiner Perkins, Element Partners, NGP and Credit Suisse. Prior to joining TAS, Michael was the CFO for Pinnacle Technologies Inc. a leading Oil Field Service company, from 1997 to 2009.During his tenure, Pinnacle Technologies grew at a compound annual growth rate of greater than 30%, from a $2.5M startup to a dominant technology provider with 70% market share in the hydraulic fracture mapping and reservoir monitoring business. He was a key player in the sale of Pinnacle Technologies to Carbo Ceramics in 2002 and then managed the sale of the fracture mapping and reservoir monitoring business to Halliburton before joining TAS. Michael also worked for NeXT Software Inc in Silicon Valley leading up to their prospective IPO and final sale to Apple Computer.Michael grew up in New Zealand but currently lives in Denver, CO. He has worked across three continents in his career and has an abiding passion for travel and the arts.President Ron Gusek Ron Gusek has been the President of Liberty Oilfield Services since November 2016. Before assuming the role of President, Mr Gusek was the VP of Technology and Development from 2014. Over the past 20 years, Ron has garnered extensive oil and gas experience in North America, and extended his knowledge of operations through travels to Asia, Russia and the Middle EastWithin Liberty, Ron’s focus includes new technology and innovation, service quality, efficiency and optimization.Ron holds a B.S. in Mechanical Engineering from the University of Alberta.Ron has also held previous roles at Sanjel Corporation, Zodiac Exploration, Pinnacle Technologies and BJ Services, with a primary focus on hydraulic fracturing in unconventional reservoirs.Ron is a published SPE author and presenter. His dedication to the petroleum engineering community and interest in shared industry knowledge is evident in his numerous volunteer capacities, which include the Denver Petroleum Club, COGA and the Metro Denver Economic Development Corporation Executive Committee and Energy Coalition.Outside of work, Ron is a husband, father, runner, cyclist, hiker, skier and occasional adventure racer.Chief Accounting Officer Ryan Gosney Ryan Gosney has served as the Chief Accounting Officer of Liberty Oilfield Services since March 2017. Over the course of his career, Ryan has gained extensive experience leading auditing and accounting teams in both private and public settings in the oil and gas industry through a diverse array of transactions and growth.Ryan has a Bachelor of Business Administration from Texas Christian University.Ryan began his career as an auditor with Arthur Andersen, LLP in September 1995 where he served in increasing roles of responsibility up to Audit Manager until June 2002. From October 2002 to October 2005, Ryan served as Controller for Patina Oil & Gas Corporation and as Controller of Delta Petroleum Corporation from October 2005 until he departed in 2012. Ryan served as Chief Financial Officer for Dorado E&P Partners, LLC, an oil and gas exploration and production company, from January 2012 to January 2016. Prior to joining Liberty, between July 2016 and February 2017, Ryan served as the Chief Accounting Officer of Vantage Energy, an oil and gas exploration and production company.Ryan enjoys the array of outdoor activities that Colorado has to offer including hiking, off-road exploring, running, biking and skiing.Vice President of Operations Jim Brady Jim Brady has been the VP of Operations at Liberty Oilfield Services since its founding in 2011. His knowledge about people, equipment, vendors, and customers during his previous 21 years in the Oil and Gas Industry lead him to his current position at Liberty. The most important part of his job is people and creating a culture that promotes service quality, safety and the drive to be the Best Damn Frac Company Period.Jim began his career in oil and gas with Halliburton in 1990 working in the bulk plant, where he pushed a broom, mixed cement, drove bulk cement trucks and hauled sand to frac locations. Eventually he was transferred to the Stimulation department and began learning the various pieces of equipment, rig up/rig downs, the different fluid systems, safety factors and how to work as a team. During Jim’s 17 years at Halliburton he held various positions. He ended his career as the Service Manager who was responsible for Service Quality, Safety and Personnel for the Brighton Stimulation Department.In 2007, Superior Well Services recruited Jim to be Operations Manager in the Brighton District in Colorado. Within months the DJ based frac crew became the leader in the Rockies and eventually the entire company. He held this position for two years and was then promoted to the Rockies Region Manager. As Region Manger, Jim was responsible for districts in Farmington, NM, Vernal, UT, Rock Springs, WY, Williston, ND, and Brighton, CO. When Jim left in May 2011 to start Liberty, Superior had four frac cews and seven cement crews actively operating in the region.Jim lives in Colorado with his wife and three daughters. He enjoys golfing, riding his motorcycle, mowing his lawn, and just having fun.Vice President & General Counsel Sean Elliott Since March 2017, Sean Elliott has served as Vice President and General Counsel at Liberty Oilfield Services. Sean has over 20 years of legal experience and has spent much of his career in leadership roles within publicly-traded companies. Sean Elliott studied at Austin College where he earned a bachelor’s degree (magna cum laude) in Economics and Business Administration.He then moved on to earn his juris doctorate degree (with honors) from The University of Texas at Austin. Prior to joining Liberty, Sean worked as Assistant General Counsel at USAA Real Estate Company, which is part of the USAA organization that serves the U.S. military and their families. Sean practiced law in the San Antonio office of Haynes and Boone, LLP from 2015 until joining USAA in 2016. Before moving to San Antonio, Sean served as Vice President, General Counsel, Corporate Secretary and Chief Compliance Officer for CARBO Ceramics Inc., an oilfield services company in Houston, from 2007 until 2015. Sean also served as legal counsel to Aviall, Inc., a Dallas-based international aviation company, from 2004 to 2007, where he last held the positions of Assistant General Counsel and Assistant Secretary.Sean is a Texas native. He enjoys tennis, golf, mountain and water sports, and spending time with his children.Vice President of Business Development Tom Riebel Tom Riebel began his career with Liberty Oilfield Services as Director of Business Development in August 2012. In January 2015 Tom was promoted to Vice President of Business Development. Tom has spent the last 20 years in Denver developing a better understanding of the drivers and circumstances influencing the needs and potential success of our customers. His focus over the last several years has been to align the strengths of LOS with those customers’ needs to help all parties not only survive but thrive during the recent industry downturn.Tom started his career in 1981 as an Open Hole Logging Engineer for Schlumberger in Ardmore, Oklahoma. Tom Joined Halliburton 1983 as a Sales Engineer for their Welex division in Denver, Colorado. In 1989 he transferred to Anchorage, Alaska and helped expand the existing cased hole business and establish an offshore open hole business in the Cook Inlet.In 1992 Tom moved to Bakersfield as the Area Sales Manager for Halliburton’s West Coast Wireline business. After 6 years in Bakersfield, Tom transferred to Halliburton’s Western Region headquarters in Denver. He spent the next 6 years as an Account Leader and then 2 years as the Sales Manager for the Production Optimization Division which consisted of Fracturing, Coil Tubing, Completion Tools and Wireline Services.In early 2006, Tom joined Pinnacle Technologies as the Business Development Manager for their Rocky Mountain Region. During the 6 years at Pinnacle, the Rocky Mountain Region grew from one of the smallest regions to the largest Microseismic region in Pinnacle. Tom helped clients understand the geometry and growth of hydraulic fractures. Many of the fracture mapping projects Tom was involved in were in horizontal wells in the Williston and DJ Basins.Tom completed his undergraduate degree at South Dakota State University where he earned a BS in Engineering. Tom and Ann, his wife of 37 years, both grew up on farms in Southern Minnesota. Although he lives in Colorado, Tom remains a faithful Minnesota sports fan.Vice President of Engineering Leen Weijers Dr. Leen Weijers serves as the Vice President of Engineering at Liberty Oilfield Services. He has worked at Liberty since its founding in 2011, originally serving as its Business Manager. Leen’s role at Liberty focuses on two main aspects. One, delivering improved well economics to customers through optimized frac designs, and two, on customer and internal data sharing and reporting to improve business efficiencies.Leen worked at Pinnacle Technologies from 1995 to 2011, where he oversaw development of the industry’s most widely used fracture growth simulator, FracproPT. He was Pinnacle’s Rocky Mountain Regional Manager from 2007 - 2011, where he helped rebuild its Rocky Mountain operations.Leen has authored dozens of industry courses and publications. He also played a key role in the calibration of fracture growth models with various fracture diagnostics such as tiltmeter and micro-seismic fracture mapping technologies. Leen Weijers completed his doctoral research at the Faculty of Mining and Petroleum Engineering at Delft University of Technology in the Netherlands by conducting fracture growth model experiments to investigate the interaction of hydraulic fracture systems with horizontal and deviated wells. Before that, Leen completed a Master’s degree in Geophysics, also from Delft University of Technology.Leen and his wife Margreet have four kids. Leen loves to spend his leisure time with his family in Colorado’s beautiful outdoors on skis, skates or cycling tires or on the dance floor.