Mark Wasem joined the firm's Dallas office in 2008 as a partner in the firm's energy practice. His practice focuses on the representation of clients in a broad array of energy transactions, including:

• the acquisition and divestiture of oil and gas properties and natural gas pipelines;
• the development and operation of natural gas pipelines; and
• the contractual and regulatory matters of both upstream and midstream energy companies.

Mark has over 25 years experience in structuring energy transactions, including the negotiation of agreements related to the acquisition and divestiture of oil and gas assets, the negotiation of oil and gas contracts, the formation and operation of joint ventures and the representation of clients in matters before the FERC, Railroad Commission of Texas and municipalities.

Represented clients in the acquisition and divestiture of oil and gas properties and large mid-stream transactions:

• Represented exploration and production company in an undisclosed joint venture valued at $150 million with a global private equity firm
• Represented Marcellus Shale based exploration and production company in a joint venture primarily involving the negotiation of a complex participation and exploration agreement with an international investor
• Represented buyer in the $60 million acquisition of upstream assets in West Virginia
• Represented exploration and production company in a complex joint venture involving the negotiation of a limited and perpetual net profits interest, and other ancillary agreements, for the development of South Texas acreage
• Represented buyer in the acquisition of a cryogenic gas plant located in Pennsylvania
• Represented an international buyer in the purchase and development of oil and gas properties located in Utah
• Represented the seller in the sale of all of the assets of its E&P subsidiary in Colorado
• Represented the seller in the $275 million sale of Texas oil and gas properties
• Represented the seller in the $1.2 billion sale of Michigan oil and gas properties
• Represented the seller in the $1.1 billion sale of Texas/Louisiana oil and gas properties and pipelines
• Represented the buyer in the $240 million acquisition of oil and gas leases and wells in East Texas
• Represented the joint venture in the construction and operation of a new high-pressure natural gas pipeline in North Texas
• Represented the seller in the $255 million sale of oil and gas leases and wells in the Barnett Shale
• Represented the buyer in the $160 million acquisition of an East Texas oil and gas E&P company
• Represented the buyer in the $130 million acquisition of oil and gas leases and producing wells in the Barnett Shale 
• Represented the buyer in the $150 million acquisition of oil and gas leases and producing wells in the Barnett Shale
• Represented the seller in the $500 million sale of its pipeline subsidiary
• Represented the seller in the $1.9 billion merger transaction of pipeline and local distribution companies

Extensive knowledge of the operational and legal aspects of the exploration and production industry:

• Drafted drilling and exploration agreements for active independent oil and gas producers
• In-depth familiarity with royalty owner issues including the latest gas measurement and marketing disputes

Extensive experience preparing and negotiating commercial contracts for all aspects of the natural gas business, including, natural gas purchase and sale, transportation, gathering, processing, treating and storage agreements:

• Represented private equity firm in joint venture with owner of natural gas assets in the Marcellus Shale play in transaction with estimated value of $317 million
• Represented major intrastate pipeline companies in gas purchase and transportation transactions
• Represented major U.S. local distribution company in natural gas prudence reviews before the state commission
• Represented natural gas pipelines in regulatory matters at the federal, state and municipal levels
• Represented pipeline companies from construction to operation and abandonment

• State Bar of Texas - Energy Law Section, Member
• American Bar Association - Natural Resources and Energy Law Sections, Member
• Energy Bar Association, Member
• Dallas Bar Association - Energy Law Section, Member
• Houston Bar Association - Member
• Natural Gas and Electric Power Society of North Texas, Member
• Texas Independent Producers and Royalty Owners Association, Member

• "Who's Who in Energy," Dallas Business Journal (2012)
• "Texas Top Rated Lawyer," LexisNexis Martindale-Hubbell (2012, 2013)

• Co-author, "Pennsylvania Supreme Court Reaffirms Subjective Test to Determine Production 'In Paying Quantities'," Fulbright Alert, March 28, 2012
more

1981 - J.D., Baylor Law School
1978 - M.A., University of Illinois at Springfield
1974 - B.A., Millikin University

While in law school, Mark was an editor of the Baylor Law Review.

• Texas