Click a photo below for biographical information.
Curtis Harrell joined Citation in 2002. Prior to joining the company, Curtis served as Executive Vice President, Chief Financial Officer and Director of Brigham Exploration Company. From 1996 to August 1998, he was Executive Vice President and Partner at R. Chaney & Company, Inc., an equity investment firm focused on the energy industry, where he managed the firm’s investment origination efforts in the U.S. From 1994 to 1996, Curtis was a Director of Domestic Corporate Finance for Enron Capital & Trade Resources, Inc., where he was responsible for initiating and executing a variety of debt and equity financing transactions for independent exploration and production companies. Before joining Enron Capital & Trade Resources, Curtis spent eight years working in corporate finance and reservoir engineering positions for two public independent exploration and production companies, Kelley Oil & Gas Corporation and Pacific Enterprises Oil Company, Inc. He has a B.S. in Petroleum Engineering from the University of Texas at Austin and an M.B.A. from Southern Methodist University.
Forrest Harrell joined Citation in 1995 and was promoted to Vice President Marketing in July 1997. Forrest also has served as President of CCMI since its inception in January 1997. Prior to joining Citation, he managed various sectors of Phibro Energy USA, Inc.’s refined products marketing and trading business in its Houston, Nashville, and Atlanta offices. Forrest holds a B.S. degree in Geology from the University of Texas at Austin.
Chris Phelps joined Citation in 2006. Prior to joining the company, Chris was a management consultant with The Boston Consulting Group from 2001 to 2006, where he advised senior managers of Fortune 500 companies in the energy and technology industries on a range of strategic and operational issues. From 1998 to 2001, Chris worked in corporate finance, strategic planning and investor relations roles at Brigham Exploration Company, most recently as Vice President – Finance & Strategic Planning. He began his professional career as an investment banker with Bear, Stearns & Co. Inc. from 1992 through 1997, where as Vice President – Corporate Finance he was responsible for executing a variety of debt and equity financing transactions and providing M&A advisory services principally for independent exploration and production companies. He has a B.B.A. in Finance and the Business Honors Program and an M.B.A., both from the University of Texas at Austin.
Greg Harrison joined Citation in 2020 bringing 35 years of oil & gas experience across a broad spectrum of roles, play types and regions. Starting as a Reservoir Engineer in the Rockies, Greg spent 20 years with Unocal in Operations, Projects, Technical and Management roles in their onshore, offshore, U.S. and SE Asia assets. After Unocal’s acquisition by Chevron, he moved to Oxy as Chief of Production Operations worldwide from 2007 to 2010 before managing Oxy’s Bakken assets from 2011 to 2015. In 2015 Greg joined Santos Oil & Gas (Australia) where he held a variety of leadership roles, most recently as Vice President of Onshore Operations before returning to the U.S. with Citation. Greg has a B.S. in Petroleum Engineering from Missouri S&T (Rolla) and is a licensed professional engineer.
Wayne Wiesen joined Citation in 2008. Prior to joining Citation, Wayne served in the position of Senior Vice President – Legal, Commercial Businesses for Duke Energy Corporation. Prior to joining Duke Energy Corporation in 1999, he was an attorney in the Business and International Section of Vinson & Elkins LLP. Wayne has a B.B.A. in Accounting and Finance from Baylor University and received his J.D. from the University of Texas at Austin.
Mat Thompson joined Citation in 2016, initially serving as Senior Director of Business Development, and now as Senior Vice President – Land & Business Development. From 1997 to 2008, Mat actively managed land assets in numerous U.S. petroleum basins, including the Permian, Mid-Continent, Gulf Coast, Rockies, and Deepwater Gulf of Mexico, working for ExxonMobil, Burlington Resources, and ConocoPhillips. From 2008 to 2016 Mat held business development roles at Linn Energy and EP Energy, leading acquisition and divestiture efforts for both companies. Mat is a Certified Professional Landman and holds a B.B.A. in Marketing from the University of Central Oklahoma and a B.B.A. in Energy Management from the Price College of Business at the University of Oklahoma. Mat now serves on OU’s Energy Management Board of Advisors.
Scott Loosley joined Citation in 2008 as Manager of Commercial Activities & Business Development and was promoted to Vice President in 2010. Prior to joining Citation, he spent 16 years at ConocoPhillips in their Finance, Product Marketing, and Crude Supply & Trading organizations. While at ConocoPhillips, Scott was responsible for refinery supply and managed key domestic and foreign crude oil trading positions. He has a B.B.A. in Finance from the University of Oklahoma.
Jay Portwood joined Citation in 2016 to manage the companies EOR/IOR efforts, and now serves in the capacity of Vice President – Reservoir. Jay began his career in 1983 with Hadson Petroleum where he worked as a geologist in their Oklahoma City, Oklahoma, Hobbs, New Mexico, and Midland, Texas offices. In 1989, he moved into the oilfield services sector to help start-up Biodynamics Corporation in Oklahoma City, where he spent the next seven years commercializing a new surfactant EOR process. From 1996 to 2007, Jay was employed by TIORCO, Inc. in Fort Worth, Texas, where he served as Manager of Southern Region Operations with the responsibility of expanding the company’s domestic EOR business. In 2007, he founded Eclipse IOR Services in Fort Worth to provide polymer-based EOR processes to the oil and gas industry. In 2014, Eclipse was acquired by Flotek Industries, where Jay continued to work as President of Eclipse to help support and expand Flotek’s IOR/EOR technologies worldwide. Jay holds a B.S. degree in Geology from the University of Texas at Austin.
Bob Redweik joined Citation in 2017. Prior to joining Citation, Bob served in the position of Corporate Manager – Health, Safety, and Environment at Swift Energy Company. He started his oil and gas career with Shell Oil Company as an environmental engineer and worked both onshore and offshore operations and represented Shell and the oil and gas industry on numerous committees and associations. In 2019, Bob was appointed to the Texas Radiation Advisory Board by Governor Greg Abbott to represent the Oil and Gas Industry. Bob is a graduate of Purdue University with a B.S. degree in Civil Engineering and an MBA from Loyola University, New Orleans.
Charlie Pringle joined Citation in 2022. Prior to joining Citation, Charlie served in the position of Vice President Tax at CenterPoint Energy where he lead the tax department and responsibilities included financial statement reporting, federal and state income tax compliance, tax planning, providing tax advice on strategic transactions, regulatory reporting and rate case support, tax controversy services, sales taxes, and property taxes. He started his career and spent 11 years in public accounting in the Federal Tax Practice at KPMG while becoming a Senior Tax Manager with clients primarily in the energy industry. Charlie worked as a Tax Manager at Battalion Oil Corporation from 2013 to 2015 as he managed all income tax processes for the company and provided tax technical advice, in particular, as it relates to ASC 740 accounting for income taxes, transactions and tax planning strategies. He started as Director of Income Tax at CenterPoint in 2015 and was promoted to Vice President Tax in 2019. Charlie received his Bachelors of Business Administration in Accounting with Honors and a Master of Science in Accounting, both from Texas A&M University. He is a Certified Public Accountant in the State of Texas.
Zach Kimball joined Citation in 2023, bringing with him more than 17 years of diverse upstream energy experience. Prior to joining the company, Zach was a strategy consultant in the oil and gas practice at McKinsey & Company from 2018, consulting top management and world governments across the energy value chain. From 2012 to 2018, Zach worked at Marathon Oil Company where he worked in Wyoming prior to being promoted to an operations engineer role working in Equatorial Guinea, Africa, and then served as a Commercial Analyst in the Corporate Business Development group. He began his professional career in Colorado and Wyoming as an environmental consultant and then a frac’ stimulation engineer for Halliburton. Zach has a B.S. in Chemical Engineering, with a Minor in Public Affairs from the Colorado School of Mines in Golden, Colorado, an Executive MBA from the IE Business School in Madrid, Spain, and is a licensed professional petroleum engineer.
Lori joined Citation Oil and Gas in 2024 as Vice President of Human Resources and Corporate Administration. She previously held the role of Vice President Human Resources at CSI Compressco, LP a leader in natural gas compression services. Before that, Lori served as Chief Human Resources Officer at Premium Inspection and Testing, Inc. where she guided HR programs for the industrial testing and calibration services company. Her career began at Target Corporation followed by key HR and leadership roles at Invensys Operations Management, Air Liquide, and CB&I, where she gained deep expertise in organizational development and human capital strategy.
Mike Ziegler joined Citation in 2024, bringing with him more than 21 years of experience in accounting, most recently serving as Vice President of Accounting at Development Capital Resources, a private equity-backed, non-operated and structured equity investor in the energy space. Prior to that, he served as Controller and Director of Financial Reporting at Sanchez Energy and Sanchez Midstream Partners, and Assistant Controller and Investor Relations Manager at PetroLogistics, LP. From 2002-2009, he served as an auditor at PricewaterhouseCoopers, LLP in Houston, Texas. Mike is a Certified Public Accountant licensed in the state of Texas. He received a Bachelor of Science in Accounting from Louisiana State University and a Master of Business Administration from the University of New Orleans.
Jim Evans joined Citation as a Production Engineer in 1994 and later served as Production Superintendent. He was promoted to Region Manager in 2005 and to his current position of Vice President & Region Manager of Citation’s West Texas Region in 2017. Jim has over 36 years of experience in oil & gas operations. He started his career in 1983 with Atlantic Richfield Company in the Midland, Texas area and held various supervisory positions in both production and drilling operations working primarily the Permian Basin area. He gained extensive experience working deep high pressure gas in the Delaware Basin while at ARCO. Jim holds a BS degree in Mechanical Engineering from New Mexico State University.
Mark Bing has been with Citation since 1987, first serving as an Operations Engineer and later Region Manager where he managed the Mid-Continent Region from 1988-1991, the Rocky Mountain Region from 1992-2003, the Rocky Mountain and the West Texas Regions from 2003-2005, and the Central Region since 2005. He was promoted to Vice President & Region Manager of Citation’s Central Region in 2017. Prior to joining Citation, Mark worked for IMC Exploration Company, Getty Oil, and Tenneco in various engineering roles. Mark holds a B.S. degree in Petroleum Engineering from Louisiana State University.
Jeremy Wagner has been with Citation since 2006 serving as a Production and Operations Engineer for the Rocky Mountain Region, and he was promoted to Vice President and Region Manager of Citation’s Rocky Mountain Region in 2019. Jeremy began his career in the Arkoma Basin in 2000 working for Schlumberger and Hanna Oil and Gas in various field engineering roles. Jeremy holds a B.S. in Petroleum Engineering from the University of Wyoming and is a licensed Professional Engineer.
Rod Smith has been with Citation since 1987, first serving as a Rocky Mountain Area Superintendent in Farmington, New Mexico. Subsequently transferring to Oklahoma City in 1989 as the Mid-Continent Area Superintendent and later as Manager of Operations. In 2017 he was promoted to his current position as Vice President & Region Manager of operations for the largest regional asset in the company. Prior to joining Citation, Rod worked in various drilling & production engineering positions for two large independent E&P companies in Denver, Colorado. He has a B.S. in Petroleum Engineering from Oklahoma State University.
Jerry Martin joined CCMI in 1997 as Manager of Crude Oil Marketing and was promoted to Vice President in 2000 and Senior Vice President in 2009. Jerry has over 30 years of experience working in the oil and gas industry. Prior to joining CCMI, he served as Manager of Crude Oil Purchasing for Northridge Energy Marketing, a division of TransCanada Pipelines. Before that, he worked for Phibro Energy, U.S.A., Tesoro Petroleum Inc., NRG Energy Inc., Howell Crude Oil Company, Coastal Corporation and Shell Oil Company. Jerry was instrumental in the founding of Howell Crude Oil Company, a subsidiary of Howell Petroleum Corporation, where he served as its first President and CEO. He holds a B.S. in Economics from Rice University and is a Certified Public Accountant.
