Jamie L. Jost

Managing Shareholder

Jamie is the Founder and Managing Shareholder of Jost Energy Law, P.C. where she focuses primarily on matters relating to exploration, development and production of oil and gas, as well as local, state, and federal permitting and regulatory issues in the Rocky Mountain Region. In addition, she assists clients with legislative and policy strategy planning, land and mineral due diligence, acquisition and divestiture matters, land contracts (including leases, easements, rights-of-way, surface use and access agreements, and subsurface and pore space easements), industrial siting permitting, air and water issues, and eminent domain matters. Jamie practices in front of the Colorado Oil & Gas Conservation Commission, the Wyoming Oil & Gas Conservation Commission, the New Mexico Oil Conservation Division, the Interior Board of Land Appeals, as well as federal and state courts on various energy issues, including oil and gas royalty litigation, subsurface trespass matters, and surface use issues. She also assists national and international oil and gas operators on a daily basis to ensure that their exploration, development, and operations continue to progress efficiently and economically.

Prior to founding Jost Energy Law, P.C., Jamie was a shareholder at a premier Denver based energy law firm where she served as Chair of the Oil and Gas Commission Practice Group. Jamie also enjoyed an in-house counsel role at Suncor Energy (U.S.A.) Inc. where she served as Corporate Legal Counsel and was primarily responsible for legal issues for Suncor’s pipeline affiliate’s land, title, litigation and permitting matters. Specifically, Jamie worked closely with the business team on the expansion of its existing pipeline system and managed the easement acquisition, permitting, and eminent domain proceedings for the expansion project. She also advised Suncor’s Terminal and Distribution Group, Retail Group, and Human Resources Group on various matters. 

Jamie has served the Colorado Oil & Gas Association in various capacities since 2010 and as COGA’s Counsel from 2013 to 2016. She has also served as a trustee for the Rocky Mountain Mineral Law Foundation and has co-authored numerous oil and gas related articles for the RMMLF. She is an active member of the Denver Association of Petroleum Landmen and the Colorado Bar Association’s Natural Resources Sections. She is a member of the Colorado Bar Association, Wyoming Bar Association, New Mexico Bar Association, the U.S. District Court of Colorado, the U.S. District Court of Wyoming, and the 10th Circuit Court of Appeals. Jamie received her J.D. from the University of Wyoming in 2002 and her undergraduate degree, cum laude, in Environmental Science and Industrial Hygiene from Indiana State University in 1998.

In addition to her legal career, Jamie is also a past member of the Board of Directors for Ronald McDonald House Charities, Inc. and the Colfax Community Network. She has been listed in the Denver Business Journal’s publication of Top Women in Energy in 2014 and 2017, and Who’s Who in Energy in 2016, as well as named Top Lawyer in Natural Resources in 5280 Magazine for 2015 through 2018. Jamie has also received the “Rising Star” designation by Colorado Super Lawyers for 2012 through 2016, and was named Super Lawyer in both 2017 and 2018.

Kelsey H. Wasylenky


Kelsey brings over twelve years of oil and gas transactional law experience to her position as Shareholder at Jost Energy Law, P.C. Her practice focuses primarily on transactional oil and gas law including purchase and sale transactions, representation on regulatory and environmental matters, and land use negotiation. Prior to joining Jost Energy Law, Kelsey served as the General Counsel of K.P. Kauffman Company, Inc., a privately held exploration and production company, where she practiced in all areas of oil and gas transactional law including acquisition and divestiture, regulatory and environmental compliance, contract negotiation, oversight of corporate litigation, entity formation and dissolution, and business planning. Kelsey received her M.B.A. from the University of Denver Daniels College Of Business in 2011, her J.D. from the University of San Diego School Of Law in 2006, and her B.A. from Brown University in 2002. Kelsey is licensed to practice law in the State of Colorado.