Karen L. Callahan

Having developed a successful high school speech and debate program, Randall Vaughan left education to pursue a career as a trial lawyer, a goal that guided his law school education and decision to join Pray Walker in 1985. Randall has tried numerous cases in federal and state courts, and written legal briefs and presented oral arguments at the appellate level. He has also served as an advocate for clients in private arbitrations. As a counselor, he assists large companies in managing their n...

Randy Long is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Litigation - Insurance and Personal Injury Litigation - Defendants. Randy, who practices law in Tulsa, Oklahoma, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Randy is held by other top lawyers in the same geographic and legal practice area.

Robert has been affiliated with Pray Walker since 1992 and has focused on trials of civil disputes. Robert’s practice began with the defense of personal injury and product liability lawsuits, but has grown to include handling cases involving business fraud and interference, breaches of corporate duties, and problems arising from business agreements. The contractual disputes range from commercial warranty claims to construction problems to oil and gas accounting issues and surface damage...

Kenneth F. Albright is a top attorney recognized by Best Lawyers in the practice area(s) of Oil and Gas Law, Real Estate Law and Tax Law. Kenneth F., who practices law in Tulsa, Oklahoma, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kenneth F. is held by other top lawyers in the same geographic and legal practice area.

Dan S. Folluo is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Personal Injury Litigation - Defendants. Dan S., who practices law in Tulsa, Oklahoma, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Dan S. is held by other top lawyers in the same geographic and legal practice area.

Heath E. Hardcastle is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Real Estate. Heath E., who practices law in Tulsa, Oklahoma, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Heath E. is held by other top lawyers in the same geographic and legal practice area.

Michelle Harris is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Michelle, who practices law in Tulsa, Oklahoma, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michelle is held by other top lawyers in the same geographic and legal practice area.

William Jones is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. William, who practices law in Tulsa, Oklahoma, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William is held by other top lawyers in the same geographic and legal practice area.

Don Smith joined Pray Walker in 1983 and has been a Shareholder with the Firm since 1990. Practicing in the areas of energy law, environmental law and title examination law, his primary emphasis is in energy transactions, principally representing oil and gas producers and operators in the purchase and sale of exploration and production assets, gathering and other midstream properties, and energy-related surface facilities. Don has negotiated, coordinated and closed numerous energy transaction...

Larry D. Henry is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Individuals and Litigation - Labor and Employment. Larry D., who practices law in Tulsa, Oklahoma, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Larry D. is held by other top lawyers in the same geographic and legal practice area.