The Vault - Fallout Wiki

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The Vault - Fallout Wiki
Control Station Enclave
FactionsPoseidon Energy (pre-War)
Enclave (March 2077 – Fall 2242)
LeadersPresident Dick Richardson
Vice President Daniel Bird
DoctorsLt. Col. Dr Charles Curling
QuestsStop the Enclave
TerminalsDataPlex 2000 SmarTerminal
Trap room terminals

There's a big Poseidon oil rig left out on the water. That's the final base of the Enclave, and unless I miss my bet, that's where your friends are, too.

A. Ron Meyers

The Poseidon Energy Oil Rig (Control Station ENCLAVE in official Enclave records) was a pre-War deep sea drilling platform, built over the world's last accessible underwater oil field, located 175 miles off the coast of California (N 37° 17', W 124° 23' 24").[1]


In March 2077, with the world heading directly for nuclear confrontation, the President of the United States and other members of the Enclave retreated to various fortified areas around the globe. The Poseidon Oil derrick in the Pacific Ocean was chosen as a secret base from which the USA could continue to exist and wage war on China,[2] with the eventual goal of retaking the continental United States. Some members of the Enclave retreated to remote locations in other parts of the world, but when the bombs hit, they lost all contact with the main group. As the world burned and United States disintegrated, its President and the Enclave, remnants of the pre-War American shadow government,[3][4][5] established themselves as its continuation, claiming authority over the United States mainland.

In late 2077, not long before the Great War, the oil rig received schematics for X-01 power armor and Vertibirds from the Whitespring Congressional Bunker.[6]

In 2242, the Chosen One traveled there via an oil tanker to save his tribe and the previous inhabitants of Vault 13, as well as to stop the Enclave and President Richardson from releasing FEV Curling-13 into the world's jet streams, killing all humans outside the Enclave world wide, in preparation for Enclave's colonization. The Chosen One (aided by Marcus and others recruited to his cause)[7] destroyed the oil rig by overloading its primary reactor and causing a megaton-sized thermonuclear explosion.[8] Enclave survivors never learned the truth behind the rig's destruction.[9][10]


The oil rig was, in fact, a disguised, powerful military base with industrial facilities, top notch medical technology, completely self-sufficient and able to provide the Enclave with a power base. Not only was it their main base,[11] it was connected to other Enclave, military, and corporate facilities via PoseidoNet (curiously, it seems the oil rig's PoseidoNet software was a trial version, ending in 2079).[12]

The usual computer unit used on the Enclave oil rig was a DataPlex 2000 SmarTerminal.[13] Operating systems used on the platform included Fenestra '98,[14] Apricot OS,[15] and Vault-Tec proprietary OS.[16]


The oil rig was powered by a Vault-Tec uranium-based nuclear reactor. The entire process was automated, thanks to a supercomputer running recently invented synchronized multi-processors on a tri-processor motherboard, which carefully regulated coolant temperature, intake of sea water for cooling, expending hot water and waste from it, as well as regulating the neutron bombardment on the uranium fuel rods. Seawater was pumped from 500 meters depth, used both to move the turbines and cool the core. Radiated water and miscellaneous toxic byproducts of the operation were disposed off through a waste conduit, terminating one mile south of the rig, causing irreversible ecological damage to coasts of southern California and Mexico. The biggest flaw in the system was that even the slightest disuption in the supercomputer's operations would lead to a 100 kiloton nuclear explosion within two hours, due to an uncontrolled bombardment of the uranium isotopes. The loss of power would also severely cripple the oil rig, as energy intensive systems would shut down (force fields, for example) and watertight doors would close, to prevent any flooding.[17] What's worse, manually retracting the containment rods would trigger the same reaction, with no hope of restoring control, as putting them down to slow down the reaction would overheat the reactor.[18]


As a military base, the oil rig was heavily defended, including external guns to protect against seaborne threats (i.e. everything without a Poseidon IFF transponder).[19] The rig also had a significant transport Vertibird fleet. Internally, apart from Enclave soldiers outfitted with advanced power armor, an extensive network of security turrets (dual .223 caliber miniguns) and sentry robots was present, ready to neutralize any foe. Quite probably, the oil rig was the single most well protected location in the entirety of post-nuclear America.

Industrial and scientific facilities

The oil rig's scientific facilities were outfitted with cutting edge pre-War technology. Equipment present in them included infrared spectrometers and gear for synthesizing compounds - in vast quantities, if need be.[20]


By 2242, the Enclave expanded its operations to the mainland; the amount of permanent residents on the oil rig was between 60 and 80.[21] Taking into account non-permanent residents, the Enclave oil rig was home to between a hundred[22] and as much as a thousand inhabitants.[23]

All inhabitants tended to be pale, due to the lack of natural sunlight. However, they were of good health.[24] Their position in society could be easily determined by their gear. Regular citizens off duty typically wore jumpsuits derived from Vault-Tec designs and didn't carry any weapons. Personnel on duty were usually the science staff (wearing white lab coats and carrying standard issue energy sidearms for personal defense), while soldiers wore power armor and various high end weapons. Lower rank troops stationed on the rig typically wore last generation T-51 power armor and carried M72 Gauss rifles, whereas higher ranking soldiers and members of the Secret Service used advanced power armor and various high end weapons. Finally, the President and Vice-President could be easily identified by their pre-War suits and lack of armaments, save for access cards giving them control over the entire Enclave.

Security drills were a regular feature of life on the oil rig.[25] Evening entertainment usually consisted of various safety movies.[26]


Located on a massive drilling platform in the Pacific Ocean, the oil rig was fitted with extensive facilities enabling large scale manufacturing and research. Cutting edge technology included infrared spectrometers, chemical synthesis equipment,[20] and other advanced tools. The Enclave also possessed the necessary equipment and knowledge for conducting genetic analysis,[27] engineering[28] and large scale virus synthesizing.[29]


Welcome to the Enclave

The docking platform is where all tankers arriving at the platform moor. The docking procedure is fully automated and requires no human oversight. As such, the PMV Valdez can dock unmolested and the Chosen One can infiltrate the station covertly.

Entry hall

Fo2 Oil Rig Entry Hall.png

Directly beyond the dock lies the entrance hall. It is a large chamber with a relief symbolizing the Enclave embedded into the floor. Turrets equipped with automatic weapons line the wall as the first line of defense, though they are kept dormant under everyday conditions.

The exit to the barracks lies to the east, beyond an open air lock, while a spiral case to the south leads to the detention level and laboratories.

During the final confrontation with Frank Horrigan, the player can enlist the aid of Sgt. Granite and his men in the airlock leading to the barracks section (Speech check required). They can also use the Presidential access key to activate the counter-insurgency routine and have the turrets engage Frank Horrigan.

Guard barracks

Fo2 Enclave Oil Rig Barracks.png

The guard barracks[30] house extensive facilities for housing the rig's inhabitants and include a large storeroom and armory, living quarters for troops, a large exercise hall, hygiene facilities, and lounge, as well as administrative rooms and living quarters of the highest ranked officer. A sealed staircase leads directly to the Presidential level.

The player can obtain explosives to blow up the main computer in the armory. This area is also an excellent source of high loot if the player plans on continuing the game after the end.


Detention cells and laboratories

Fo2 Detention Oil Rig.png

This is the level where the FEV Curling-13 is developed and perfected. The largest feature is the test subject holding area[30] housing test subjects (Arroyo villagers and Vault 13 dwellers), followed by the research and development project area,[30] containing large laboratories and testing facilities. The level also houses the living quarters for scientists involved in the project.

Medical items can be found in the lockers in the laboratories. A staircase in the detention block leads below to the trap rooms.

Access corridor

Fo2 Oil Rig Trap Level.png

The access corridor[31] is peculiar area apparently used for hazing fresh troopers, the trap rooms are exactly what it says on the tin. Arranged in a 3x3 fashion, each room has an electrified floor that will discharge at regular intervals, dealing up to ten points of damage to a character wearing power armor. Each room has a terminal that opens other doors and allows the player to navigate the level. The doors are secured with electrical fields and require very high Traps and Lockpick to open (100% and 200% respectively).

Navigating the area

The rooms are laid out on a 3x3 by grid. For the purposes of this segment, we have numbered them as follows:

1	2	3
4	5	6
7	8	9

The quickest path requires activating terminals 2, 3, 1, 7, 8 and 9 or 2, 1, 2, 3, 8, and 9.

Reaching the side rooms (accessible from rooms 4 and 6), the player simply has to activate terminals 2, 1, and 4.

The player can activate terminals 2, 1, 2, 3, 3, 8, 9 to open up all doors simultaneously.

There is more to the level than meets the eye. Both rooms have unarmed Enclave soldiers and plenty of interesting loot, including the unique advanced power armor Mk II in the long ammo box in the western one and a GECK in the Survival/Gear Locker in the eastern room.

What's more, in the lower right hand room (number 9), the player can use a tool (not a super tool kit) to cut the loose wires and the electricity supply to the floor (worth 1000 experience points after passing a Repair check). there's also a rather interesting Easter egg connected to the terminals.

Terminal Easter Egg

A randomly selected terminal in the maze can be repaired using the Repair skill. When the correct terminal is selected, the game runs a Science check to determine if the player receives their Easter egg reward. If the check is successful, the player receives their reward.

The reward is determined by the highest tagged non-combat skill, with at least 100%. If multiple qualify, the following order is used:

Executive office

Fo2 Oil Rig Presidential Quarters.png

The heart and soul of the Enclave, the executive office area[30] houses the offices, living quarters, and facilities of the Enclave's top echelon. The center piece of the level is the office of President Dick Richardson, connecting to his secretary's room and the office of Vice President Daniel Bird. The eastern half of the area also houses the conference hall and war room, with living quarters in the south. The western area is dominated by the storage vats for the FEV toxin, a storage room with a nuclear warhead, and Lt. Col. Charles Curling's living quarters. A staircase at the security checkpoint to the north leads below to the reactor level. An emergency spiral staircase is located on the opposite end of the level, leading to the barracks.

Security is provided by Secret Service agents in advanced power armor and carrying pulse energy weapons. They are supported by a number of advanced sentry bots ready to intervene at moment's notice. The player will have to confront them if they kill Dick Richardson through violent means for his Presidential access key. Charles Curling can be convinced to release the FEV toxin into the air system of the Enclave. Resting for ten minutes afterwards will kill unarmored Enclave inhabitants on each map (although the President, Bird, and Tom Murray will be unaffected).

Information and power plant level

Fo2 Oil Rig Reactor Level.png

At the deepest level of the oil rig lies the Vault-Tec uranium-powered nuclear reactor and the information processing areas[30]. It is operated by a cutting edge mainframe installed right next to it (very susceptible to explosives).[32] The level also houses the aforementioned computer labs, soldier barracks, and the office of Tom Murray, head of the Atomic Energy Commission. Security is tight, provided by power armored troops carrying lethal weapons.

The player has to blow up the computer controlling the reactor in order to trigger the self-destruct sequence. If they have no explosives, Tom Murray can be threatened to lift the control rods and trigger a meltdown. However, if the FEV toxin was released, the only way will be blowing up the computer, as Murray will be unresponsive. Convincing Murray is worth 12,500 experience points, while blowing up the reactor is worth 10,000. What they don't say is that the player can first threaten Murray, then blow up the reactor for a total of 22,500 experience points.



Control Station Enclave appears in Fallout 2 and is mentioned in Fallout Bible, Fallout: New Vegas, Fallout 4, and Fallout 76.


  1. The Chosen One: "{116}{}{Where is the Enclave main base located?}"
    Central computer for Navarro: "{125}{}{Searching... Accessing geographical maps... Data acquired. Enclave headquarters is located 175 miles off of the coast of California in the Pacific ocean. Coordinates are 37 degrees 18 minutes north latitude by 120 degrees 7 minutes west longitude.}"
    Note: the coordinates as given by the computer are erroneous, as they place the oil rig deep inland. The coordinates were worked out by assuming that latitude is correct, while using the distance provided by the computer to gauge distance. San Francisco was used as point of reference, since it is also the location mentioned by the computer.
  2. Fallout Bible 0 Timeline repair: Second strike: "2077 March Prepared for a nuclear or biological attack from China, the president and the Enclave retreats to remote sections around the globe and make contingency plans for continuing the war."
  3. The Courier: "What are you talking about?"
    Arcade Gannon: "I wasn't always with the Followers, or with the NCR. My late father was an officer in a group called the Enclave, a remnant of America's Pre-War government. Memories being short around here, not a whole lot of people remember them. But they did bad things. Terrorized communities, kidnapped people. Eventually, someone stopped them. I was born a few years later at a military base on the coast, a place called Navarro."
    (Arcade Gannon's dialogue)
  4. Fallout 3 Official Game Guide Game of the Year Edition p.41: "The Enclave
    In the recent past, the Enclave—the remains of the United States government—were evacuated to an oil rig off the coast of California. Little is known about what happened to these forces, although the country has a new commander-in-chief: President John Henry Eden. However, recent reports and chatter have pinpointed the resurgence of the Enclave, with their base centered on a secure underground facility known as Raven Rock. Initial contact was made there 35 years ago.
    During this time, the new President Eden has been slowly rebuilding his resources, thanks in part to the technology already available at the Raven Rock military base. Vertibirds, weapons, and robots were easy to construct, but human followers were more difficult to find. The answer was to rely on Colonel Autumn, who controls the Enclave soldier forces, as well as creating a propaganda-spewing series of Eyebots sent to roam the Wasteland, spreading hope. Eden could spout his pro-government rhetoric, and promise a return of the pre-war America of legend: a land of white picket fences, baseball, apple pie, and good, old-fashioned American global supremacy.
    President Eden's secretive plan all along has been to rule over an America of the "pure," free from any mutation. He has learned of a ridiculously ambitious experiment known as Project Purity, and knew the time to strike had come: His Enclave forces would "reclaim" the Jefferson Memorial. By controlling the purified water, Eden would control the Capital Wasteland, and the rest of the country eventually. What better way to administer modified F.E.V.- which kills anyone infected with any form of mutation-than through the water supply?"
    (Fallout 3 Official Game Guide faction profiles)
  5. Boston Bugle Article Terminal, Article 4
  6. Whitespring Congressional Bunker terminals; Schematic Archives, Prototype Power Armor Schematics
  7. The Courier: "I'd like to know about you."
    Marcus: "Was part of Super Mutant army, ran a town, walked the wasteland with a tribal. Now I'm here."
    The Courier: "Tell me more about the tribal."
    Marcus: "We were looking for a GECK to save the village of Arroyo. Eventually, we did. Nuked an oil rig in the process. We went separate ways after that. I went east into the Rockies, looking for other mutants like myself. Don't know what happened to my friend. I've got a feeling it turned out all right in the end."
    (Marcus' dialogue)
  8. Power plant operations
  9. The Courier: "What happened to the Enclave oil rig and Navarro?"
    Judah Kreger: "Internal sabotage took down the oil rig - never did get the full story. The NCR took out Navarro, saying we posed a threat to the region."
    (Judah Kreger's dialogue)
  10. Enclave Remnants
  11. The Chosen One: "{120}{}{Where is the Enclave main base located?}"
    Enclave technician: "{135}{}{The main base is located off the Pacific coast near the city of San Francisco. May I ask why you are asking?}"
    The Chosen One: "{120}{}{Where is the Enclave main base located?}"
    Enclave technician: "{132}{}{Didn’t you come from there?}"
    The Chosen One: "{134}{}{No actually, I’m from up north.}"
    Enclave technician: "{135}{}{Oh... I didn’t know we had an outpost up there. Anyway, the main base is off the coast of San Fran a ways.}"
  12. QITURTRM.MSG: "{228}{}{User Help file update not available with trial PoseidoNet software. Please purchase full version for full access to all further updates. Your trial period for PoseidoNet access is 59, 439 days overdue.}"
  13. QITURTRM.MSG: "{103}{}{You see a DataPlex 2000 SmarTerminal, with a full 64k of RAM, it's the very latest in computer technology.}"
  14. QITURTRM.MSG: "{116}{}{This terminal has a message on it; "Loading Fenestra '98." The terminal is covered with a thick layer of dust. }"
  15. QITURTRM.MSG: "{117}{}{This terminal seems to be an Apricot-brand terminal. It's running something called Fallout 2. Wow, it looks like it's multiplayer and 3D.}"
  16. QITURTRM.MSG: "{242}{}{Presidential Security Passkey recognized, Good day, Mr. President…. Emergency Counter Insurgency Protocol initiated…**Malfunction**… Security link offline on this level. Please submit form FG-I-106-32-0635 to authorize repair services. Thanks for using another fine Vault-Tek product. Good day.}"
  17. Power plant operations: "Vault-Tec's new Uranium Nuclear Reactor has been working to top efficiency so far. With the state of the art computer systems that were made specifically for the task of regulating the coolant temperature as well as many other key functions, we are able to allow the reactor to run with minimal supervision.
    The new Synchronic multi-processors that we had built into the tri-processor motherboard are able to multitask the coolant temperature, the intake of cool sea water, the outtake of expended coolant and waste from the reactions, and the regulation of the neutron bombardment upon the uranium. Without the computer systems, the reactor would go out of balance almost immediately, causing a chain-reaction bombardment of the uranium isotopes. Within two hours, or less, this would result in a nuclear explosion equivalent in the 100-kiloton range.
    The sum of the main portions of the reactor are placed underwater, beneath the station. This arrangement allows the ocean's natural temperature to keep the exterior cooler. Seawater, from 500 meters, is pumped into the coolant chamber. A portion of the cool seawater is diverted to the containment unit, where the core and control rods are. There, it circulates through the core, becoming heated from the nuclear reaction taking place. The seawater reaches the boiling point and the resulting steam is used to turn the turbine generator to create all of our electricity. The steam then condenses and returns to a filter tank. The cleansed water is entered back into a preparation tank, ready to start the cycle all over again.
    Severely radiated water, and miscellaneous toxic materials, are pumped out of the station through a waste-conduit, terminating one mile to the south. Reports from our survey crews state that our effluvia drifts down the coast of southern California and Mexico, causing irreversible ecological damage. Many of the beaches are now saturated with toxic waste, and highly radiated sea life. Fortunately, this doesn't effect us.
    In any case, if our reactor is shut down, we do have some backup batteries that can be used to power vital systems throughout the Enclave until power is restored. However, these do not include extraneous and high energy items such as forcefields. Also, as a safety precaution, certain watertight doors throughout the station, will close when power is reduced (to prevent flooding in case of an emergency). This will restrict movement through the station but movement to the top of the station is still possible, through alternate routes.
    The real problem is that if the computer is shut down or destroyed, unlikely though both of those events may be, the reactor will go critical to the point of meltdown within two-hours. We need to install some sort of a human-maintained backup system. I know that you may think I'm an alarmist for bringing up these provisions for an unthinkable event, however it always pays to be prepared."
  18. The Chosen One: "{126}{}{I need to shut down your atomic reactor.}"
    Tom Murray: "{134}{}{Shut it down? Are you crazed? You're not going to shut down *my* reactor.}"
    The Chosen One: "{135}{}{Yes, I am. You better tell me how, or I'll shut you down, permanently.}"
    Tom Murray: "{138}{}{Here, I tell you what. I'll do it for you. But if you try to shut it down too fast it'll overheat.}"
    The Chosen One: "{139}{}{I don't care about that. Just shut down the reactor, or I'll gut you like a fish.}"
    Tom Murray: "{141}{}{You're bluffing. You wouldn't dare.}"
    The Chosen One: "{142}{}{Yes, I would. If you don't help me, you're a dead man.}"
    Tom Murray: "{146}{}{Okay, okay. I'll do it. Just take it easy now. But I'm telling you - it's going to overheat as soon as I put the containment rods down. If we perform a crash shutdown like this we'll have to scram the whole reactor-or we better learn to speak Chinese.}"
  19. The Chosen One: "{107}{}{I hear you're the one who knows all about this ship.}"
    A. Ron Meyers: "{113}{}{This ship's a Poseidon tanker. It's equipped with tech that lasted through the war. It's got a FOB that allows access to the navigation computer room, and it's got an IFF transponder that protects it from Poseidon guns.}"
  20. 20.0 20.1 Enclave scientist: "{109}{}{This spectrometer is fucked up.}"
    "{110}{}{Where's the maintenance crew when you need them?}"
    "{111}{}{I just calibrated the IR-spectrometer.}"
    "{112}{}{How did the recrystalization go?}"
    "{113}{}{The synthesis is complete, doctor.}"
  21. Ask Chris Avellone by (archived)
  22. Casino patron: "{329}{}{I felt a great disturbance…as if a hundred evil bastards on an oil derrick suddenly cried out in terror and were suddenly silenced. Strange.}"
  23. Charles Curling: "{241}{}{It's not pretty. You should leave as soon as possible. But I'd rather have the weight of a thousand on my conscience than several hundred-thousand. Our time is through here. We had our chance.}"
  24. Enclave scientist: "{102}{}{You see a pale but healthy looking citizen.}"
  25. Enclave scientist: "{138}{}{Must be another security drill.}"
    "{139}{}{Don't those troopers ever get tired of these drills?}"
  26. Enclave citizen: "{104}{}{Wonder what the safety movie is tonight?}"
  27. The Chosen One: "{162}{}{You're running tests on my tribe?}"
    Charles Curling: "{165}{}{There are a number of, primarily, very subtle changes. I haven't had time to look into the ramifications of the changes yet though. Also, I'd have to backtrack to isolate your initial gene-stock before I could hazard any ideas on the direction the changes are taking. All in all though, the information is clear enough.}"
  28. FEV Curling-13 program.
  29. The Project
  30. 30.0 30.1 30.2 30.3 30.4 QITURTRM.MSG: "{140}{}{ Security Level: Current Status}
    {187}{}{Guard Barracks Level: Security turrets currently at Armed Alert status.}
    {190}{}{Test Subject Holding Level: Security turrets currently at Armed Alert status.}
    {193}{}{Research and Development Project Area: Security turrets currently at Armed Alert status.}
    {196}{}{Executive Office Area: Security turrets currently at Armed Alert status.}
    {199}{}{Information and Powerplant Level: Security turrets currently at Armed Alert status.}"
  31. MAP.MSG (Fallout 2): "{602}{}{Access Corridor}"
  32. Enclave citizen: "{114}{}{What's all that racket?}"
    "{115}{}{That's the reactor alarm.}"
    "{116}{}{Uh, oh.}"
    "{117}{}{Better find some Rad-X, again.}"
    "{118}{}{That thing's always breaking down.}"
Enclave Symbol (Fallout 3).png
Enclave Symbol (Fallout 3).png