Oil's Well is a video game developed and published by Sierra On-Line for the ColecoVision, released in 1983. The game is an arcade-style title in which the player controls an extendable drill, navigating underground to collect oil while avoiding subterranean creatures. The goal is to accumulate points by successfully drilling for oil while managing obstacles and threats. The gameplay mechanics focus on spatial awareness and quick reflexes, and it's known for its challenging levels that increase in complexity as the player progresses.