The Board of Directors of C&J Energy Services, Inc. appointed Mr. Nick Petronio, C&J's then President, Well Support Services, to the role of President, Strategic Planning. Mr. Sterling Jack Renshaw has succeeded Mr. Petronio as C&J's President, Well Support Services. Mr. Petronio most recently served as President, Well Support Services, a position he held since August 2016. On August 16, 2017, the Board appointed Mr. Sterling Jack Renshaw to the role of President, Well Support Services, succeeding Mr. Petronio in such position effective immediately.