David M. Guinn, Jr.

William B. Burford is a partner in the firm's Oil & Gas/Energy section. His practice focuses on Natural Resources Law and Oil and Gas Law, with experience handling oil and gas title examination and transactional matters involving fee, state, and federal lands in Texas and New Mexico. Mr. Burford advises clients on a broad range of energy-related legal matters, including title review, due diligence, leasing, acquisitions, divestitures, and other transactions associated with oil and gas dev...

Anna Brandl is a partner at Kelly Hart whose practice focuses on complex commercial litigation for defendants, including oil and gas, intellectual property, and product liability litigation. She represents clients across a range of industries and has experience handling matters in federal and state courts. Ms. Brandl’s litigation practice includes disputes involving energy, technology, construction, financial services, and medical technology companies. In addition to her litigation work...

Derek L. Montgomery is a partner in Kelly Hart’s Litigation and Appellate practices and handles a variety of complex civil litigation and appellate matters for individuals, corporations, and other institutional clients. He has extensive experience representing plaintiffs and defendants in a wide range of matters, including business disputes, oil & gas litigation, wind energy matters, personal injury, professional malpractice claims, real property disputes, breach of contract, and te...

Mr. Cox represents leading financial institutions, businesses, and agricultural producers in northwest Texas and the Texas Panhandle. His practice is focused on loan documentation (including syndicated loans), complex commercial and agricultural bankruptcies, trustee litigation, restructuring and workouts, commercial real estate, and representation of franchised motor vehicle dealerships. Mr. Cox is the author of Texas Creditors' Rights Laws Annotated (Thomson Reuters / West 2017-21). Board C...

Mitzi S. Mayfield is a lawyer recognized by Best Lawyers in the practice area of Personal Injury Litigation - Defendants. Mitzi S. practices law in Amarillo, Texas Best Lawyers has recognized Mitzi S. Mayfield since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Mitzi S. Mayfield is held by other lawyers.

Gavin Gadberry is devoted to serving the legal needs of health care providers and improving the future of health care, especially the long-term care profession. He currently serves as general counsel of and issue lobbyist for the Texas Health Care Association. Gavin is also a member of the American Health Care Association Legal Subcommittee, where he previously served as its chair. His health care practice encompasses government relations, long-term care and health care law, administrative an...

Harold L. Hensley, Jr. is a partner in the Oil & Gas/Energy and Litigation Sections of the firm. He is a skilled trial lawyer with a legacy of victories in both state and federal courts. He is a member of the Roehl Circle of Honor of trial lawyers in New Mexico and served the New Mexico Supreme Court as a member of its Uniform Jury Selection Committee. Mr. Hensley received his BBA degree from Rice University and his law degree from the University of Texas. He is a member of the State Bar ...

Thomas C. Riney is a lawyer recognized by Best Lawyers in the practice areas of Legal Malpractice Law - Defendants, Mass Tort Litigation / Class Actions - Defendants, Medical Malpractice Law - Defendants, Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. Thomas C. practices law in Amarillo, Texas Best Lawyers has recognized Thomas C. Riney since 2006. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and...

Experienced in federal and state trial and appellate courts, Kelly Utsinger’s practice is concentrated on employment, insurance, nonsubscriber, trucking and catastrophic injury litigation. After receiving his law degree from Texas Tech University School of Law, he worked as a briefing attorney for the 7th Court of Appeals. He has maintained an appellate practice with over 30 reported cases and has also prosecuted and defended commercial litigants and multi-million dollar first party ins...

Ann Manning is a lawyer recognized by Best Lawyers in the practice area of Education Law. Ann practices law in Lubbock, Texas Best Lawyers has recognized Ann Manning since 2018. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Ann Manning is held by other lawyers.