Control Station ENCLAVE

The Poseidon Energy Oil Rig was a pre-war deep sea drilling platform, built over the world's last accessible underwater oil field. The Americans won the race to estabilish a platform there, after sabotaging Chinese efforts to do so. During the nuclear storm of the Great War, the Enclave most important members and essential personnel have evacuated to this location.

It is logical to assume that this was no ordinary derrick, but rather, a disguised, powerful military base with heavy industrial facilities, top notch medical technology, completely self-sufficent, able to provide the Enclave with a highly efficent powerbase.

During the course of Fallout 2, the Chosen One must travel there via an oil tanker in order to save his tribe and the previous inhabitants of Vault 13. The Enclave and President Richardson were preparing to release a form of the FEV virus into the world's jet streams, thereby preparing the Earth for re-colonization and killing everyone in the process. The Chosen One kills the President and destroys the Oil Rig by deactivating/destroying the coolant systems, overloading the primary reactor and causing a megaton-sized thermonuclear explosion.

Structure
The massive structure of the oil rig probably had many facilities for industrial manufacturing, research and development, Vertibird maintenance etc. However, in-game, only a small portion of the Oil Rig is visitable.

Defenses
As a military base, the Oil Rig was heavily defended - Captain A. Ron Meyers refers to Poseidon guns, that are able to blast even a tanker-size vessel out of the water, if it doesn't have the Poseidon IFF protocol active. Likely, anti-aircraft weapons were present, in addition to a significant Vertibird fleet.

Internally, apart from Enclave soldiers outfitted with Advanced Power Armor, an extensive network of security turrets (dual 5mm miniguns) and sentry robots was present, ready to obliterate any foe. Quite probably, the Oil Rig was the single most well protected location in the entire post-nuclear America.

Inhabitants
The Enclave Oil Rig was home to America's finest minds and people... in theory at least. In practice, years of isolation and propaganda have left the citizens of the Enclave decadent, xenophobic and extremely dangerous to outsiders, in particular the soldiers.

Clearly identifiable were the "classes". Citizens wore blue and yellow jumpsuits, identical in design to those of Vault-Tec shelter inhabitants, and carried no weaponry. Members of the science division wore lab coats and carried personal defence weapons (usually a Wattz 1000 Laser Pistol), while the military (including the Secret Service) used T-51b Power Armors and M72 Gauss Rifles (lower-ranking soldiers) or Advanced Power Armor and various heavy duty weapons.

The President was unarmed, but carried what was probably the most important asset on the Oil Rig - the Presidential Access Card, giving him full control over the systems of the drilling platform.

Easter Egg
If you have your Science and Speech skills high, you can try repairing computers in the room with electric floor. If you are successful you will obtain the Alien Blaster, if your Speech skill is high enough.

Appearances in Games
The Oil Rig appears at the very end of Fallout 2.