Boeing concept decades ago
https://en.wikipedia.org/wiki/Boeing_RC-1
The
Boeing RC-1, short for "Resource Carrier 1", was a design for an enormous
cargo aircraft intended to haul oil and minerals out of the northern reaches of
Alaska and
Canada where ice-free ports were not available. It was optimized for short-haul missions only, carrying cargo to locations for loading onto ships, trains or pipelines. Depending on the role, the design was nicknamed "Brute Lifter" or "Flying Pipeline".
goes on