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Leslie Boyle


555 17th Street, Suite 3200, Denver, CO 80202

Leslie Boyle provides strategic advice to developers of large infrastructure projects, with a particular focus on oil and gas upstream and midstream facilities, renewable power generation projects, and energy storage projects.

Leslie negotiates the contracts required for every stage of a project’s life cycle, from development and construction through revenue generation and day-to-day operation. Her experience covers a wide range of complex development and commercial contracts, including engineering, procurement, and construction agreements, power purchase agreements, operation and maintenance agreements, oil and gas gathering and transportation agreements, and master services agreements. She also advises clients in the negotiation of joint ventures for the development and operation of infrastructure projects.

Her clients range from national upstream and midstream oil and gas companies, independent power producers, mining companies, and utilities, to equipment manufacturers and professional service providers.
Leslie teaches biannual seminars through EUCI on renewable energy power purchase agreements and electric utility contracts and regularly teaches internal seminars on the drafting and negotiation of contracts.


Strategic Transactions 
  • Partnering and Joint Ventures
  • Acquisition and Divestiture Transactions
  • Equity Financings
  • Construction and Term Debt Financing
  • Single-Project and Portfolio Lending
Negotiation and Implementation of Development Contracts 
  • Equipment Supply Agreements
  • Engineering, Procurement and Construction Agreements
  • Fuel Supply Contracts
  • Utility Power Purchase Agreements
  • Pre-Paid, Commercial Offtaker and other Non-Traditional Power Purchase Agreements
  • Operation and Maintenance Agreements
  • Shared Facilities Arrangements
  • Interconnection and Transmission Agreements
  • Gathering, Processing, and Transportation Agreements
  • Product Sale and Marketing

Client Results

Oil and Gas Industry
  • Represented WPX Energy Inc. in the negotiation of gas gathering and processing, oil gathering, oil transportation, and connection agreements related to its midstream facilities in the Permian Basin.

  • Represented DCP Midstream, LP in the drafting and negotiation of infrastructure-related contracts in connection with the expansion of its gathering and processing facilities in Texas, Oklahoma, New Mexico, and Kansas, including the negotiation of engineering, procurement, and construction services agreements, procurement agreements for purchases of line pipe and other midstream-related materials, and electricity supply contracts for processing plants.

  • Represented Paradigm Energy Partners, LP in the negotiation of gathering and transportation agreements and various connection agreements for pipelines in the Bakken and the Eagle Ford Shale.

  • Represented a commercial bank in the financing of the construction of an oil and gas terminal.

  • Represented Tallgrass Energy Partners, LP in connection with the negotiation of a produced water gathering agreement and freshwater distribution agreement for oil and gas properties in Weld County, Colorado.

  • Represented a national oil and gas company in the negotiation of multiple gas gathering agreements, oil gathering agreements, produced water gathering agreements, and freshwater transportation agreements servicing oil and gas properties in Weld County, Colorado.

  • Represented a capital fund in two financings of its oil and gas properties.

Electric Power Generation Industry
  • Represented the Southern California Public Power Authority (SCPPA) in the negotiation and closing of a prepaid power purchase agreement, under which the buyer prepaid for 20 years of energy from a 262 MW wind energy project in Washington.

  • Represented Cook Inlet Region, Inc., an Alaska Native Corporation, in connection with a $40 million loan made by its subsidiary, CIRI Energy Finance Company LLC, to an affiliate of Capital Dynamics, a global asset manager and investment group based in Zug, Switzerland. The loan is secured by an indirect equity interest in the 150 MW Briscoe Wind Farm located in Briscoe County, Texas, which began operations in 2015.

  • Represented Cook Inlet Region, Inc., in connection with the development and financing of the 17.6 first phase of the Fire Island Wind project, the first utility-scale wind generation project in Alaska, and a submarine and overland transmission line connecting the Fire Island Project to mainland Anchorage Alaska, including the negotiation of the power purchase agreement and financing documents.

  • Represented SCPPA in the acquisition of 53 MW of energy storage capacity, the first deal of its kind at the utility scale.

  • Represented Agrilectric Power Partners in connection with the negotiation of a dispatchable power purchase agreement with Energy Services, Inc. for the sale of the output from a biomass facility (rice hull-fired) located in Louisiana.

  • Represented SCPPA in the negotiation of firming and shaping synthetic transmission arrangements for energy projects located in Washington and Oregon.

  • Represented SCPPA in the purchase of a 50 MW wind energy project in Washington.

  • Represented a developer in the sale of power from, and the financing of, a 200 MW facility in Wyoming.

  • Represented a developer in the financing of a portfolio of wind energy projects in Wyoming, Pennsylvania, and Colorado with an aggregate nameplate capacity of 291 MW.

  • Represented an advisor to an international energy storage company in the drafting of an EPC contract and O&M agreement for the installation and operation of battery energy storage systems.

  • Representing a municipal body in the negotiation of a power purchase agreement for the purchase of power from a combination solar photovoltaic and battery energy storage system.

  • Represented the City of Riverside in the negotiation of a Power Purchase Agreement for the purchase of energy from the Camino Project, a combination 44 MW solar photovoltaic facility and 11 MW battery storage system.

Other Infrastructure Projects
  • Represented Cloud Peak Energy in connection with a joint venture with a subsidiary of Carrix, Inc. to develop the Gateway Pacific Terminal, a 54 million metric ton, dry bulk, deep water export terminal near Seattle, Washington.

  • Represented an international gold mining company in connection with a joint venture for the exploration for copper deposits in Chile.

Commercial Transactions
  • Represented a national manufacturer in the negotiation of numerous supply and distribution agreements for the sale of products to distributors and retailers.

  • Represented a ski apparel company in the negotiation of its warehouse and fulfillment services agreements.

  • Represented a railroad part manufacturer in the negotiation of various sales agreements to national railroad companies.

  • Represented a pharmaceutical company in the negotiation of its development services and commercial supply agreements with customers.



Speaking Engagements


Bar Admissions


  • The Best Lawyers in America©, Corporate Law, 2021
  • Colorado Super Lawyers® Rising Stars, Energy & Natural Resources, 2013-2020
  • Denver Business Journal, Who's Who in Energy, 2017

Professional and Civic Affiliations

  • Women's Energy Network, Member
  • American Bar Association, Member
  • Colorado Bar Association, Member
  • Denver Bar Association, Member
  • Big Brothers Big Sisters, Volunteer Big Sister
  • Meals on Wheels, Volunteer
  • Sunday Lunch Program, MPB Church, Volunteer  
  • Faith & Light, MPB Church, Participant
  • Musana Community Development Organization, past Board Member and multiple Executive Officer roles 2010-2016

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