Oil Rig is a route, not just a location
The important decision is not only where the Oil Rig is, but whether the run can be repeated safely. Prepare weapons, ammo, healing, flying or water travel, inventory space, and a return path before treating the route as a farm.
Plan the reward before the fight
Oil Rig searches often happen because a player wants rare late-game materials or chests. Name the reward first, then check whether the risk is worth it compared with a base, boss, or resource route that solves the same blocker.
Use a staging base when runs become repeated
If Oil Rig clears become part of your loop, build a staging point that supports repairs, food, ammo, and storage. The goal is to turn a stressful one-off clear into a repeatable supply route with fewer wasted trips.