In 2007, an award from the Permanent Court of Arbitration established the maritime boundary between Guyana and Suriname. This boundary delimited a hotly contested maritime area that holds the potential for significant oil reserves. The delimitation in the Award followed a strictly drawn equidistance line in all but the territorial sea.

The territorial sea portion of the boundary begins three nautical miles off the coast and follows a geodesic line to the limit of the twelve nautical mile territorial sea. From this point, the boundary follows an equidistance line that delimits the overlapping exclusive economic zone entitlements of Guyana and Suriname. The entirety of the  maritime boundary is 219 nautical miles in length.

Guyana and Suriname also share a land boundary.