Riggs Abney Neal Turpen Orbison & Lewis Law Firm Email Format

Law PracticeOklahoma, United States51-200 Employees

Riggs Abney Neal Turpen Orbison & Lewis Law Firm is a Tulsa-based law practice with additional offices in Oklahoma City and Denver. Founded in 1972 by four University of Tulsa College of Law graduates, the firm merged in 1994 with Robinson, Lewis, Orbison, Smith and Coyle to form its current name, Riggs Abney Neal Turpen Orbison & Lewis. It is one of Oklahoma’s largest law firms, reflecting its long-standing presence in the state's legal landscape.

The firm offers broad-based legal counsel and representation across all areas of law, serving a diverse client base. Its culture emphasizes public service, with attorneys and staff involved in a range of charitable activities. Several former or current leaders have held public roles, including M. David Riggs, who served in the Oklahoma State Legislature for 18 years; Michael C. Turpen, Oklahoma's Attorney General from 1982 to 1986; James C. Orbison, a former Chairman of the Education State Lottery Commission and Vice-Chairman of the Tulsa County Public Facilities Authority; and C.S. Lewis III and Melvin C. Hall, who have served as Chairmen on the University of Oklahoma Board of Regents.

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