Lorne Rollheiser

Lorne Rollheiser is a partner at Gowling WLG and the head of the firm’s Oil and Gas Industry Group in Calgary, Alberta. 

Recognized by Legal 500 and The Best Lawyers in Canada as a leader in his field, Lorne has over 20 years of experience practising in natural resources and energy law — including as in-house counsel with two of North America’s largest independent oil and gas producers. This unique background positions him strongly in the market and equips him to offer sophisticated legal advice that’s in tune with the day-to-day realities of the sector. 

Working closely with domestic and international exploration and production clients, Lorne focuses his practice on a range of complex energy-related matters associated with the planning, development, and execution of upstream and midstream projects. With respect to upstream projects, Lorne has significant experience advising on matters concerning seismic acquisition and use, regulatory approvals, surface and mineral rights, farm-ins, joint ventures, accounting and royalty issues. In the midstream and downstream space, he advises both shippers and carriers across an array of different areas, including transportation service agreements, tariffs, buy/sell arrangements, regulatory approvals, blending and optimization deals, and commodity trading agreements.

Over the course of his career, Lorne has also led teams in a multitude of high-stakes merger & acquisition and amalgamation & divesture transactions — both domestic and international. Representing buyers and sellers alike, Lorne helps clients manage the sales process, conduct due diligence, coordinate the submission or receipt of bids, and negotiate and draft definitive purchase and sale agreements.

Lorne’s A&D and M&A deal history, upstream and midstream activity, and project development experience make him a valued leader at Gowling WLG and an exemplary adviser to clients in the natural resources and energy sectors.

Associations professionnelles

  • Calgary Bar Association
  • Canadian Bar Association
  • Law Society of Alberta
  • Law Society of Saskatchewan

Representative Work

  • Advising and conducting due diligence and preparing a report on construction and operation risks in respect of a potential equity participation in the Coastal GasLink Pipeline Project.  This multi-billion dollar project is the feeder pipeline for the $43 billion (CAD) LNG project.
  • Advising a significant American E&P operator (with a $47 billion enterprise value) on preparing for the disposition of its interest in Asia and executing a country exit.
  • Advising a provincial Crown corporation in respect of its multi-faceted rights and participation in a multi-billion dollar refinery project in Canada.
  • Counsel to EOG Resources, Inc. in respect of country exits in Argentina and the United Kingdom.
  • Led the internal corporate reorganization of the Canadian operations of EOG Resources, Inc., the sale of all of its Manitoba assets, and the share sale of EOG Resources Canada Inc.
  • Led the sale of EOG Resources Canada's upstream, midstream and facility interests in the Kitimat LNG Project to Chevron Canada Limited as part of EOG's sale of its Canadian LNG interests.
  • Counsel to Plains Midstream Canada regarding the Montney-to-Market Liquids Pipeline joint venture with SemCAMs.
  • Counsel to Macquarie Oil Services Canada Ltd. on its blending, facility optimization and metering services agreements with several energy companies.
  • Counsel to Plains Midstream Canada regarding a review and update of their pipeline Rules and Regulations and GTCs.
  • Counsel to Plains Midstream Canada in respect of a transportation agreement with Keyera, one of the largest midstream oil and gas operators in Canada.  The matter involved a multi-year contract with commercial terms to ensure product integrity, nomination volumes, pipeline capacity, service requirements and fees.
  • Led the EOG Resources Canada team in the successful permitting and the right-of-way acquisition of an intra-provincial pipeline project in the Province of Manitoba.
  • Represented EOG Resources Canada in the partial sale of its upstream, midstream and facility interests in the Kitimat LNG Project to Encana Corporation for an undisclosed amount.
  • Counsel to Trafigura Canada General Partnership in a purchase and sale agreement with Anterra Energy, an energy marketing solutions provider based in Canada. The purchase and sale agreement included provisions for marketing, revenue sharing and transloading agreements with a third party.
  • Led EOG Resources Canada Inc. in the $50-million acquisition (jointly with Apache Canada Ltd.) from Pacific Northern Gas Inc. of the Pacific Trail Pipelines Limited Partnership, owner of the Pacific Trail Pipeline project.
  • Counsel to Fortis BC Energy Inc. regarding the negotiation of its standard form Gas EDI contract and a related indenture.
  • Advised Tundra Energy Marketing Ltd. on regulatory matters including its transportation contracts, master buy-sell agreements and general terms and conditions.