David Woodcock, former assistant general counsel-corporate at Exxon Mobil Corp., has joined Gibson, Dunn & Crutcher as a partner in Dallas and Washington, D.C., and as co-chair of the firm’s securities enforcement practice group.

Woodcock, who joined the firm on Monday after three years at Exxon Mobil, brings varied experience in his return to private practice. At Exxon Mobil, he led corporate, securities, ESB and sustainability, and governance for the legal department. Prior to that, he was a partner a Jones Day in Dallas and Washington, D.C., and from 2012 to 2015, he was the director at the U.S. Securities and Exchange Commission’s Fort Worth regional office, where he oversaw enforcement and examination in Texas, Oklahoma, Arkansas and Kansas.