Shareholder/Director Archives

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Bradley W. Welsh

Brad Welsh is a shareholder in the firm’s Tulsa office and a member of the Energy, Environment & Natural Resources, Litigation & Trial, and Administrative & Regulatory Practice Groups. With more than 20 years of energy law experience, Brad primarily…

Craig M. Regens

Craig Regens is a shareholder in the firm’s Oklahoma City office. He concentrates his practice in the areas of bankruptcy, restructuring, and creditors’ rights, energy and environmental litigation, oil and gas transactions, and commercial litigation. Craig frequently represents oil and…

Dale Cottingham

Dale Cottingham is a shareholder in the firm’s Oklahoma City office with more than 40 years of experience practicing in the areas energy and environmental law. He has extensive experience representing clients across a broad spectrum of oil and gas…

Lewis LeNaire

Lewis LeNaire is a shareholder in the firm’s Oklahoma City office. As a member of the Energy, Environment & Natural Resources Practice Group, Lewis represents energy industry clients in complex business litigation in state and federal courts. His comprehensive energy…

J. Christopher Davis

Chris Davis is a shareholder and director in the firm’s Tulsa office. He represents clients as a member of the firm’s Alternative Dispute Resolution, Insurance, Intellectual Property, Litigation & Trial, and Product Liability Practice Groups. With more than 27 years…

Vickie L. Driver

Vickie Driver is a shareholder in the firm’s Dallas office and is a member of the Bankruptcy & Creditor’s Rights, Corporate & Securities, Healthcare and Indian Law & Gaming Practice Groups. As Co-chair of the Bankruptcy & Creditor’s Rights Practice…

Christina “Crissie” W. Stephenson

Crissie Stephenson is a shareholder in the firm’s Dallas office and serves as Co-chair of the Bankruptcy & Creditor’s Rights Practice Group. She assists companies and individuals in restructuring matters including Chapter 11 reorganizations, bankruptcy-related litigation and appeals as well…

Madalene A.B. Witterholt

With more than 35 years of experience, Madalene Witterholt assists clients in the full spectrum of employment law issues. Starting with employee hiring and I-9 compliance, employer policy development and day-to-day advice she provides employee training as well as the…

Tynia McQuigg

Tynia McQuigg is a director in the firm’s Oklahoma City office. Tynia focuses her practice on intellectual property law, including IP litigation, trademark clearance and registration, patent prosecution, copyright issues, IT licensing and compliance and unfair competition. She also assists…

L. Mark Walker

L. Mark Walker, a director in Crowe & Dunlevy’s Oklahoma City office, focuses his practice in the areas of energy, natural resources and environmental law. His practice includes litigation in both federal and state courts, as well as practicing before…