lhfarm
Veteran Member
...You mentioned a well so I assume it will be a 220v line?-I would do the conduit route if I where you. Renting a small trencher is cheap and fast if you already have the conduit line along the path and glued together. You can suck or blow a string in after it buried. At the 300' you mentioned it would be better/easier to use THHN wire rather than UF cable.
I was running much heavier cable, but here is a discussion about running conduit a long distance - http://www.tractorbynet.com/forums/projects/139326-450-wiring-conduit-how-assemble.html