Attorneys

Patrick RyanPatrick Ryan

Director
With more than 35 years of experience in civil litigation, Pat Ryan is best known for successful high-profile cases including his work as U.S. Attorney in the prosecution…more
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Phillip WhaleyPhillip Whaley

Director
Phillip has over 25 years of experience in all forms of civil litigation, including complex and business litigation, environmental litigation, life and disability insurance law…more [email protected]


Mark ColdironMark Coldiron

Director
Mark has handled numerous matters under CERCLA, RCRA, CWA, CAA, pollution class actions, and energy matters. These projects have included CERCLA remedy litigation…more
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Daniel WebberDaniel Webber

Director
Dan's business litigation practice includes a wide range of civil, criminal and administrative matters. In 2008, he was named to Oklahoma's Super Lawyers…more
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Stephen JantzenStephen Jantzen

Director
In addition to a J.D., Stephen Jantzen earned an LL.M. in Environmental Law from The George Washington University in Washington, D.C.…more
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Michael PetersMichael Peters

Director
A former attorney for the Oklahoma Department of Environmental Quality (DEQ), Peters was assigned to the Air Quality Division…more
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Ricky PearceRicky Pearce

Director
Since graduating in 2000 as the Oklahoma Bar Association’s Outstanding Senior Law Student from the University of Tulsa College of Law, where he earned a certificate in…more
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Corey NellerCorey Neller

Director
Corey Neller’s primary practice area is civil litigation, with a specific focus upon energy litigation. Corey is licensed to practice law in both Oklahoma and…more
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Paula JantzenPaula Jantzen

Director
Ms. Jantzen attended the University of Oklahoma where she earned a B.A. in Philosophy. After receiving a Masters Degree in Classics from…more
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Matthew C. KaneMatthew Kane

Director
Matt's practice focuses primarily on complex litigation, white-collar defense and other business and environmental litigation, including a variety of noteworthy cases…more
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Steve GelnarSteve Gelnar

Director
Steve Gelnar has extensive experience in all areas of general corporate and business law with particular emphasis inmergers, acquisitions and divestitures…more
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Jason RyanJason Ryan

Director
Since graduating law school in 2000, Jason’s practice has been focused on personal injury litigation and insurance bad faith litigation…more
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Grant LuckyGrant Lucky

Director
After graduating from Oklahoma City University School of Law in 1997, Mr. Lucky began his legal career in Oklahoma as an Assistant District Attorney…more
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Bruce RobertsonBruce Robertson

Director
Bruce Robertson has extensive experience in several areas of civil litigation, including business litigation, insurance law and bad-faith litigation…more
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Chance PearsonChance Pearson

Director
Following graduation from Oklahoma State University, Chance went to work for Exxon Mobil Corporation as a revenue accountant in Houston, Texas…more
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Mary Kate WaltersMary Kate Walters

Director
A native of Shreveport, Louisiana, Mary Kate is a 2009 graduate from the University of Oklahoma School of Law. In law school, Mary Kate was honored with American Jurisprudence…more
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