By Nerijus Adomaitis OSLO (Reuters) -Equinor and partners on Wednesday submitted a plan to develop a cluster of gas and condensate discoveries in the Norwegian Sea for 9 billion crowns ($940 million), part of a rush of new petroleum projects expected in Norway this year. Halten East contains reserves of around 100 million barrels of oil equivalent, 60% of which is natural gas, and is expected to begin exporting to Europe in 2025, Equinor said The project would develop an area with six gas and condensate discoveries, with the option of developing a further three prospects, Equinor said in a sta…