JACK R. LUELLEN is a senior counsel with Husch Blackwell LLP, where his practice is primarily dedicated to oil and gas law with a particular emphasis on litigation. He has represented a broad range of clients in the energy and oil and gas industries, including companies in exploration and production and midstream sectors, such as operators, gatherers, marketers, and service sector entities, as well as regulated utilities. Mr. Luellen has represented clients in litigation in a wide variety of matters including operations; royalties; environmental and contractual issues; natural gas processing; and construction defects. He also regularly advises clients in connection with a wide-variety of regulatory matters and represents clients before state regulatory agencies, including the Colorado Oil and Gas Conservation Commission and the Utah Division of Oil, Gas and Mining. In oil and gas transactional matters, he has negotiated, drafted and closed on agreements for the purchase and sale of oil and gas assets.