David G. Gallagher became president and CEO of American Gilsonite Co. (AGC), the supplier of Gilsonite hydrocarbon resin said Feb. 1.

Wilson Ropp, chairman of the board, said that Ted Stevens is retiring after a 17-year career at AGC.

Gallagher joined AGC in 2013 as senior vice president of commercial operations and has more than 30 years’ experience working in engineering, operations, product development and executive management at Schlumberger Ltd., CARBO Ceramics and Baker Hughes Inc.  

Gallagher said that trademarked Gilsonite is a naturally occurring asphaltite that binds and strengthens as an additive for drilling fluids and cementing. AGC recently opened an advanced testing and evaluation center in Houston where clients help develop high-performance products for specific applications, he said.

Gallagher has a bachelor’s degree from the University of New Mexico.

American Gilsonite Co. is based in Houston.