Nathan S. Cross

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...

Corbin C. Brewster is a top attorney recognized by Best Lawyers in the practice area(s) of Civil Rights Law, Criminal Defense: General Practice and Personal Injury Litigation - Plaintiffs. Corbin C., who practices law in Tulsa, Oklahoma, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Corbin C. is held by other top lawyers in the same geographic and legal practice area.

Jennifer L. De Angelis is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Plaintiffs and Personal Injury Litigation - Plaintiffs. Jennifer L., who practices law in Tulsa, Oklahoma, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jennifer L. 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...

William H. Spitler is a trial lawyer who has tried and litigated cases in several areas of law, including construction, labor and employment, oil and gas, class action defense, sales and leasing disputes, antitrust defense, commercial contract disputes, fraud and breach of fiduciary duty. Mr. Spitler’s diverse and active litigation practice has provided him the opportunity to present cases before numerous state and federal court judges and appeal panels across the county. Mr. Spitler&rs...

Denelda L. Richardson is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Denelda L., who practices law in Tulsa, Oklahoma, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Denelda L. is held by other top lawyers in the same geographic and legal practice area.

Mbilike Mwafulirwa is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Civil Rights Law and Personal Injury Litigation - Plaintiffs. Mbilike, 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 Mbilike is held by other top lawyers in the same geographic and legal practice area.

Amy Page is a distinguished authority in family law, recognized by Best Lawyers for her intellect and her proven track record in high-stakes litigation. A sitting Justice of the Cherokee Nation Supreme Court, Amy offers clients a rare and commanding perspective: that of a seasoned trial lawyer, a legislative architect, and a high-court jurist. With over 25 years of experience in trial and appellate practice, Amy represents high-net-worth and ultra-high-net-worth individuals in complex matrimo...

Leah Keele is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Insurance and Workers' Compensation Law - Employers. Leah, 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 Leah is held by other top lawyers in the same geographic and legal practice area.

Bland Williamson is a founding member of Pray Walker and has been affiliated with the firm and its predecessors since 1969. His legal practice has been concentrated in Oil and Gas law and related regulatory areas for over 30 years. During this period, he has been involved in the acquisition and disposition of oil and gas properties and mid-stream facilities on numerous occasions, involving various differing business structures and financing mechanisms.Bland has experience in the drafting and ...