Biography
Mark's practice involves complex commercial litigation, with an emphasis on energy-related litigation. Mark has handled a broad range of lawsuits and arbitrations involving the energy industry, including royalty class actions in various states and cases involving antitrust claims and claims under the False Claims Act. Mark has also handled numerous energy-related administrative proceedings, audits, and investigations involving claims by state taxing authorities, orders and claims by state agencies and the federal government concerning state and federal royalties, and matters involving notice of noncompliance issued by the federal government seeking penalties for underpayment of federal royalties. For more than ten years, Mark has handled and been involved in numerous cases and administrative proceedings involving claims relating to carbon dioxide, royalties on carbon dioxide production, and related matters.

Mark has handled and been involved in energy-related lawsuits, arbitrations, and administrative proceedings in Texas, Colorado, New Mexico, Oklahoma, and Wyoming. Mark has also handled appeals before the Department of the Interior Office of Hearings and Appeals and the Minerals Management Service.

In addition to his energy litigation practice, Mark’s practice has included a broad range of other complex commercial litigation, including class action litigation, environmental and toxic tort litigation, and products liability.