Nord Stream would travel along a dual route through the Gulf of Finland and the Baltic Sea to Germany. Several littoral states along the intended route have complained about the potential environmental impact of pipeline construction, which is complicated by World War II munitions littering the Baltic Sea floor.
Nord Stream concluded a two-day meeting in Germany to vet public and shareholder comments on a transboundary environmental report submitted by the project consortium in March.
The report, Nord Stream said, "follows intensive dialogue" to address environmental concerns and national and international obligations.
"This research has enabled the Nord Stream consortium to propose a safe and environmentally sound route, avoiding environmentally sensitive sites, cultural heritage and munitions wherever possible," the project group said.
Berlin has expressed concern Nord Stream would interfere with naval testing grounds, while countries from Finland to Estonia and Poland have raised objections to the possible environmental impact.
Planners and officials interested in the Russian-backed pipeline expressed a willingness to alter the route to allay those concerns.