The Ando clan's territory, which was extended on the land infeasible for cultivation, and the profits gained from the inner land was scarce, however, the clan was gripping key ports along the coast, which had possibility to provide the clan an enormous benefit through a large-scale trading net in the Sea of Japan, and in this sense, the clan can be considered as a maritime local ruling family.
安東氏の所領は稲作には必ずしも適さない土地に広がっており、その内陸部から得る利益は少ないものの、日本海に大きな交易網を形成することにより多大な経済的利益を得ることが可能な沿岸部の良港を押さえていたことから、海の豪族とする見方がされている。