Management Team

Joseph C. Gatto, Jr.

President, Chief Executive Officer and Director

Joseph C. Gatto, Jr. joined the Company in April 2012 as Senior Vice President, Corporate Finance, with responsibility for our capital markets and strategic planning functions, in addition to investor relations activities. Effective March 31, 2014, Mr. Gatto was appointed Chief Financial Officer and Treasurer of the Company and in August, 2016 was promoted to President, while retaining the roles of Chief Financial Officer and Treasurer. In May, 2017 he was promoted to Chief Executive Officer, while retaining the role as President. Mr. Gatto was appointed as a member of the Board of Directors in May 2018. Prior to joining Callon, Mr. Gatto was a Managing Director in the energy investment banking groups of Merrill Lynch & Co. and Barclays Capital from July 1997 until February 2009, with involvement in all phases of M&A and capital raising transactions for his clients. In February 2009, he founded MarchWire Capital, LLC, a financial advisory and strategic consulting firm, and subsequently served as Head of Structuring and Execution with Merrill Lynch Commodities, Inc. from January 2010 until November 2011. Mr. Gatto also serves on the board of the American Exploration and Production Council, and the Independent Petroleum Association of America. He graduated from Cornell University with a BS degree in 1992 and The Wharton School of the University of Pennsylvania with an MBA in 1997.

Kevin Haggard

Senior Vice President and Chief Financial Officer

Kevin Haggard joined the Company in May 2021 as Senior Vice President and Chief Financial Officer. Mr. Haggard has more than 20 years of leadership experience across energy and finance. His most recent position was Vice President and Treasurer of Noble Energy, where he directed the company’s global corporate finance and treasury operations. Before joining Noble Energy in 2016, Mr. Haggard served as Vice President, Finance and Treasurer of Trinity River Energy and held the same position at HighMount Exploration & Production. Prior to those roles, he served as Chief Financial Officer of SunCap Financial and as an investment banker with Credit Suisse. Mr. Haggard holds a Master of Management from the Kellogg School of Management at Northwestern University and a Bachelor of Science in Business Administration from Georgetown University.

Jeff Balmer, PHD

Senior Vice President and Chief Operating Officer

Dr. Balmer has over 30 years of operations and subsurface leadership experience in the energy industry. His most recent role was Vice President and General Manager, Southern Operating Area for Encana Corporation with responsibility for all of Encana's upstream operations in the Permian Basin. After joining Encana in 2008, he held various leadership roles including Vice President and General Manager, Western Operating Area, managing operations in the Eagle Ford, DJ, San Juan, Piceance and Wind River Basins, and Vice President, Emerging Plays. Prior to joining Encana, Dr. Balmer served in a variety of roles, including positions with ConocoPhillips, Burlington Resources and ExxonMobil Corporation. He has experience in virtually all major oil and gas play types, and has also worked international opportunities. He holds B.S. and Ph.D. degrees in Petroleum Engineering, in addition to an M.S. in Environmental and Planning Engineering, from Missouri University of Science and Technology (formerly University of Missouri – Rolla).

Michol L. Ecklund

Senior Vice President, General Counsel and Corporate Secretary

Michol L. Ecklund is the Senior Vice President, General Counsel and Corporate Secretary for the Company. She has responsibility for the legal, human resources, sustainability and several administrative functions for the Company. Prior to joining Callon in November 2017, Ms. Ecklund was Deputy General Counsel for Operations & Commercial Law at Marathon Oil Company where she oversaw the legal team for global operations, acquisitions and divestitures as well as corporate communications. During her 15 years at Marathon Oil, Ms. Ecklund served in progressive positions within and outside the Law Organization including compliance, litigation, human resources, investor relations, corporate communications and tax. Prior to Marathon Oil, she practiced law at Baker Botts LLP in Houston. Ms. Ecklund received a B.A. degree from Rice University and J.D. from Harvard Law School.

Rex Bigler

Vice President – Production Operations

Rex Bigler joined Callon Petroleum in conjunction with the merger of Callon Petroleum and Carrizo Oil and Gas in December 2019. Prior to joining Callon, Mr. Bigler served as Vice President of Production Operations of Carrizo  from April 2017 – December 2019. Prior to his career at Carrizo,  Mr. Bigler served as Regional Vice President of Operations for BreitBurn Management Company, overseeing BrietBurn’s producing assets in California, the Mid-Continent, and the Permian Basin. Prior to BreitBurn, he spent seven years with Devon Energy as Manager, Production Operations and 17-1/2 years with Unocal Corporation in various engineering and commercial roles including domestic and international assignments and midstream development. Mr. Bigler was the lead developer and project manager for Keystone Gas Storage Facility near Kermit, Texas, one of the first bedded salt gas storage facilities in the U.S. He also worked for several small independents earlier in his career in drilling and production operations in the DJ and Permian Basins. Mr. Bigler holds a Bachelor of Science degree in Petroleum Engineering from Colorado School of Mines.

Greg Conaway

Vice President and Chief Accounting Officer

Greg Conaway joined Callon Petroleum in conjunction with the merger of Callon Petroleum and Carrizo Oil and Gas in December 2019. Prior to joining Callon, Mr. Conaway served as Vice President and Chief Accounting Officer of Carrizo from September 2014 – December 2019, as Controller of Financial Reporting from May 2012 – September 2014, and Assistant Controller from July 2011 – May 2012. Prior to that, Mr. Conaway worked for Ernst & Young, holding positions of increasing responsibility including senior manager. Mr. Conaway began his career with Arthur Andersen in 1998. Mr. Conaway is a CPA and holds a M.B.A. and B.B.A. in Accounting from Angelo State University.

Angie Day

Vice President and Chief Information Officer

Angie Day joined Callon Petroleum as Vice President and Chief Information Officer in July 2022 with over 20 years of oil and gas experience. Prior to joining Callon, Ms. Day was IT Director at EP Energy responsible for all information technology functions. Prior to EP Energy, Ms. Day held various roles with increasing responsibility in technology and leadership at El Paso Corporation. Ms. Day holds a Bachelor degree in Computer Information Systems from the University of Houston Downtown.

Carrie Endorf

Vice President of Asset Development & Technology

Carrie Endorf serves as Callon’s Vice President of Asset Development & Technology. Prior to joining Callon in November 2022, she served as Director of Reservoir Engineering and Subsurface Technology at Pioneer Natural Resources where she focused on subsurface machine learning, data analytics, reservoir modeling and enhanced recovery projects. Prior to that, she was the Director of Delaware Operations. Before joining Pioneer, Ms. Endorf served as Vice President, Engineering at Parsley Energy before the company’s acquisition by Pioneer. During her time at Parsley, she held various leadership roles within the engineering group, concentrating primarily on subsurface development and planning. She began her career with Pioneer, holding positions of increasing responsibility within the company’s operations and engineering teams. Ms. Endorf holds a Bachelor of Science in petroleum engineering from the Colorado School of Mines and a Master of Science in Global Energy Management from the University of Colorado.

Doug Genrich

Vice President of Drilling & Completions

Doug Genrich serves as Callon’s Vice President of Drilling & Completions. Prior to joining Callon in September 2022, he served as Chief Operating Officer for Houston-based Paloma Resources, where he managed the company’s Mid-Continent operations in Oklahoma’s Stack/Merge play. Prior to Paloma, he served in operations leadership roles at several public and private equity backed oil and gas companies, including Opal Resources, LLC, where he served as Chief Operating Officer, and Sabine Oil & Gas, where he served as Senior Vice President of Drilling & Completions. Earlier in his career, he held operations management positions at El Paso E&P, Anadarko Petroleum Corp., and Union Pacific Resources. Mr. Genrich is a recognized expert in both the technical and safety and environmental aspects of drilling and completion operations. He holds a Bachelor of Science degree in Petroleum Engineering from The University of Texas at Austin.

J. Michael Hastings

Vice President - Marketing

J. Michael Hastings joined Callon as Director of Marketing in June 2015, and became Vice President, Marketing in 2019. He was previously employed by ConocoPhillips, where in 2013 he retired after 35 years of service, working in various marketing, finance and accounting management roles supporting domestic and international business units. Michael graduated from the University of Texas Permian Basin in 1988 with a BBA in Accounting and Information Systems.

Liam Kelly

Vice President of Corporate Development

Liam Kelly currently serves as our Vice President of Corporate Development where he leads our corporate development, business development and strategic planning teams. He joined Callon as Corporate Development Manager in July 2015, overseeing the execution of the Callon’s corporate development, capital markets and investor relations initiatives. Prior to joining Callon Petroleum, Mr. Kelly was Vice President, Equity Research of GMP Securities from March 2014 – June 2015 and a Senior Associate in Raymond James’ Energy Investment Banking Group from June 2013 – March 2014. Mr. Kelly brings over 12 years of experience in energy industries, with a broad sector background in oilfield services, midstream, and E&P, as well as an extensive knowledge base from his experience as an Adjunct Professor at Tulane University from August 2011 – June 2013 and as a Research Associate at Howard Weil covering small- and mid-cap E&P companies from August 2010 – June 2013. Prior to that, Mr. Kelly was the Associate Director for the Burkenroad Reports Equity Research Program at Tulane University and held credit trading and equity trading positions with Citigroup Global Capital Markets. Mr. Kelly graduated from Tulane University as an Aldrich Fellowship scholar with a Masters of Business Administration in 2011 and as a Dean’s Honor Scholar with an undergraduate degree in Finance in 2007.