Beveridge & Diamond
John G. Cossa photo

John G. Cossa


1350 I Street, N.W.
Suite 700
Washington, DC 20005-3311

  • Syracuse University (B.F.A., 1996)
  • American University, Washington College of Law (J.D., 2007)
Bar Admissions & Memberships
Bar Admissions & Memberships
  • New York
  • District of Columbia
  • American Bar Association, Marine Resources Committee, Vice Chair
  • American Bar Association, Section of Environment, Energy, and Resources
  • New York State Bar Association, Environmental Law Section

John Cossa’s practice focuses on issues related to the development of energy and mineral resources on federally-managed lands. He advises clients on matters related to the leasing and development of oil and gas, wind, solar, and mineral resources both onshore and on the Outer Continental Shelf. Mr. Cossa also counsels clients on compliance with applicable operations, environmental, and safety regulations, agency notices and orders. The legal services he provides to clients include:

  • Assisting in compliance with rules, notices and orders issued under the Outer Continental Shelf Lands Act, Mineral Leasing Act, and Federal Land Policy and Management Act.
  • Counseling on land use planning and resource development issues, such as oil and gas leasing, exploration and production, and onshore renewable energy leases and rights-of-way, and the acquisition and development of offshore renewable energy leases.   
  • Drafting planning, regulatory, and environmental compliance documents necessary for federal project approvals, including National Environmental Policy Act (“NEPA”) documents, applications, and plans.
  • Advising on various environmental issues related to offshore drilling and resource development, including air emissions, oil spill scenarios, and compliance with species protection statutes such as the Endangered Species Act, the Marine Mammal Protection Act, and the Migratory Bird Treaty Act.
  • Advising on legislative matters and agency regulatory proposals.
  • Providing litigation services in federal courts, as well as in administrative appeals before the Interior Board of Land Appeals.
  • Counseling on emerging upstream energy development issues such as the development of  transboundary hydrocarbon resources, incorporating climate change information into NEPA analyses, and hydraulic fracturing on federal lands.

Prior to joining the firm, Mr. Cossa served as an Attorney-Advisor at the U.S. Department of the Interior’s (DOI’s) Office of the Solicitor, after joining the Department as a Presidential Management Fellow. While at the Solicitor’s Office, Mr. Cossa was lead counsel for the Bureau of Ocean Energy Management’s (BOEM) offshore renewable energy program, and also counseled the BOEM Directorate and agency staff on legal issues related to the leasing, development, and regulation of offshore oil and gas resources, with particular emphasis on emerging issues such as oil and gas development in the Arctic and instituting reforms in the wake of the 2010 Deepwater Horizon oil spill.

Prior to joining the Solicitor’s Office, Mr. Cossa served as advisor to the Assistant Secretary for Land and Minerals Management on Bureau of Land Management energy and land use issues. He also served in the BLM’s Division of Land Use, Planning and NEPA, where he worked on projects of national significance such as the expansion of oil and gas leasing in the Western States, and the establishment of  the West-Wide energy transmission corridors.

During his DOI tenure, Mr. Cossa received the Secretary’s Commendation for Outstanding Service for his role in implementing the U.S. offshore renewable energy leasing program. He also received the Solicitor’s Excellence Award in 2011 for outstanding contributions in the wake of the Deepwater Horizon oil spill. 

Mr. Cossa is a graduate of Syracuse University and a former art dealer. 


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The Outer Continental Shelf Lands Act and DOI Jurisdiction Over the OCS, EUCI Federal Offshore Oil & Gas Leasing Regulation, and Enforcement Conference, September 11-12, 2014

The Offshore Oil and Gas Lease: Rights and Obligations on the OCS, EUCI Federal Offshore Oil & Gas Leasing Regulation, and Enforcement Conference, September 11-12, 2014 

Offshore Renewable Energy:  What’s Next for Leasing and Development?, NOIA Annual Meeting, April 9-11, 2014

BLM Master Development Plans, EUCI Oil and Gas Production on Federal Lands Conference, March 11-12, 2014

NEPA and the Regulatory Background: Implications for Upstream Operations, EUCI Oil and Gas Production on Federal Lands Conference, March 11-12, 2014

The Development Prerogative: What Next for Offshore Leases?, Green Power Associates 5th Annual Offshore Wind Power USA, February 25-26, 2014

Issues in Renewable Energy Leasing on the Outer Continental Shelf, DOI Solicitor’s Conference, March 2011

Incorporating Climate Change into NEPA Analyses, Bureau Of Land Management National Land Use Planning  Conference, February 2008