Neither player had a bogey Thursday in taking a 1-stroke lead. David Horsey, who also had a bogey free round, is alone in third at 6-under. Four players are tied for fourth at 5-under 66.
Lawrie had all seven of his birdies in a nine-hole span. He opened with four pars, had a birdie at No. 5. After a par at the sixth hole, Lawrie ran off four consecutive birdies. He also beat par at Nos. 12 and 13.
"I played nicely. I was never really in much trouble," Lawrie said. "No bogeys is always very good. I never hit a destructive shot all day. I rolled the ball extremely well. I quite like it here."
Gonzalez had two sets of three consecutive birdies, turning the trick on Nos. 3-5 and again at Nos. 13-15. His other birdie came at the eighth hole.
"Today I played one of my best rounds this year. I hit the driver very well. I changed my putter. It feels much better. I see the ball go into the hole and that's very good," he said.