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"Followers' Credo"
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 Enclave Oil Rig is the final location and headquarters of the Enclave in Fallout 2 and one of the Enclave's hubs across the United States.[4]

Officially, it was simply a pre-War deep sea drilling platform, built over the world's last accessible underwater oil deposit in the Pacific Ocean, 175 miles off the coast of California.[6]


The oil rig was a pre-War deep sea drilling platform in the Pacific Ocean, 175 miles off the coast of California.[7]

  • It is claimed that the Oil Rig is on the last known source of Oil. However, this information is from the Sierra Depot GNN transcript, which is an unreliable source. That said, presuming the oil rig was operating as an oil rig, it would be the case that this is one of the last (if not the last) available sources of oil[8]

The United States won the international race to establish a platform at the location in January 2073, after which the Chinese accused the US of sabotage.[9] The oil deposit was originally thought to be unreachable, due to it being located thousands of feet below the seabed. During the nuclear storm of the Great War, the Enclave's most important members and essential personnel were evacuated to this location.

By 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 rig in the Pacific was chosen as a secret base from which the USA could continue to exist and wage war on China,[Non-game 1] 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,[10][Non-game 2][11] established themselves as to 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.[12]

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. The Chosen One (aided by Marcus and others recruited to his cause)[13] destroyed the oil rig by overloading its primary reactor and causing a 100-kiloton thermonuclear explosion.[14] This prevented President Richardson from releasing FEV Curling-13 into the world's jet streams, killing all humans outside the Enclave worldwide, in preparation for Enclave's colonization. Enclave survivors never learned the truth behind the rig's destruction.[15][16]


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,[17][18] it was connected to other Enclave, military and corporate facilities via PoseidoNet (it seems the oil rig's PoseidoNet software was a trial version, ending in 2079).[19]

The usual computer unit used on the Enclave oil rig was a DataPlex 2000 SmarTerminal.[20] Operating systems used on the platform included Fenestra '98,[21] Apricot OS,[22] and Vault-Tec proprietary OS.[23]


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 seawater 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 of 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 disruption 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 (such as force fields) would shut down and watertight doors would close, to prevent any flooding.[14] Additionally, manually retracting the containment rods would trigger the same reaction, with no way to restore control, as putting them down to slow down the reaction would overheat the reactor.[24]


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).[25] 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.[26]


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.

According to Dr. Curling, there were approximately 1,000 inhabitants on the oil rig.[27] All inhabitants tended to be pale, due to the lack of natural sunlight. However, they were of good health.[28]

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 defense weapons (usually a Wattz 1000 laser pistol), while the military (including the Secret Service) used T-51b power armor and M72 Gauss rifles (lower-ranking soldiers) or advanced power armor and various heavy duty weapons. The president and vice-president could be easily identified by their pre-War suits and lack of armaments, 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.

In 2242, the Enclave had expanded its operations to the mainland. Security drills were a regular feature of life on the oil rig.[29] Evening entertainment usually consisted of various safety movies.[30]


The massive structure of the oil rig probably had many facilities for industrial manufacturing, research and development, and Vertibird maintenance. The schematic below shows the area flow. Once the reactor is sabotaged, a special evacuation stairwell opens from the presidential level to the barracks, while access to detention/research and the access corridor is sealed off.

Entry hall
Access corridor


Fo2 Oil Rig Dock

Welcome to the Enclave

The entrance to the rig, a large dock illuminated with yellow spotlights. Every arriving vessel docks here, and the PMV Valdez is no exception.

Entry hall[]

Fo2 Oil Rig Entry Hall

The entrance hall of the rig, lined with powerful auto-turrets that are designed to obliterate everything and everyone foolish enough to attempt an attack on the installation. The main hall's floor is a massive relief with the word "Enclave" stamped on it, with a small access terminal in the lower left corner. The hall connects via a spiral staircase to the detention/R&D level and the barracks, via a passageway with a waiting room. The final battle with Frank Horrigan is fought here.


Fo2 Enclave Oil Rig Barracks

Connected to the entrance hall, the barracks area housed a storeroom, where T-51b power armors were used instead of forklifts, troop housing (together with a large gym and lavatories), an armory stocked with explosives, the admin section for the soldiers and their CO's living quarters. A spiral staircase sealed behind flood doors connected to the presidential level.


Detention and research level[]

Fo2 Detention Oil Rig

Houses the prison cells used to contain the Arroyo villagers and the people from Vault 13. Also contains several small labs and medical facilities, and storage areas. It is located south of the entry hall and connects to the trap room.


Access corridor[]

Fo2 Oil Rig Trap Level

A series of small rooms with computer-controlled doors and an electrified floor. Unless the right combination of computers are accessed, the doors will trap the unfortunate explorer and leave them at the mercy of the floors. Two small side rooms provide storage and a reprieve from the traps. A GECK can be found here in the northeastern room in the left survival locker in the back Survival Gear room. It is south of the detention level and connects to the presidential level.


Presidential level[]

Fo2 Oil Rig Presidential Quarters

Home of the offices of President Dick Richardson, Vice-President Bird, Richardson's secretary and the Enclave's other elite. It also contains a bomb, a war room, a conference room and medical facilities where testing on the FEV is being done. A rear staircase connects it to the reactor level, and an emergency stairwell connects it to the detention level.

Colonel Doctor Charles Curling has his office at the northwestern end. Talking to him gives an opportunity for the Chosen One to convince him that humans on the mainland are part of the same species as the Enclave, potentially triggering a crisis of conscience that leads him to dumping FEV Curling-13 into the ventilation that will kill off all non-protected personnel (i.e. civilians and scientists, except for named characters) within 30 minutes, allowing the player to loot them with impunity. He will inoculate the Chosen One and use an aerosolized inoculation on the imprisoned tribesmen and vault dwellers, so that they aren't affected. Equipment present in them included infrared spectrometers and gear for synthesizing compounds.[26]

Reactor level[]

Fo2 Oil Rig Reactor Level

The deepest level of the rig, houses the central computer, the rig's power generators, a small barracks and several scientists and citizens to maintain the former two. It is only accessible by a staircase on the presidential level.


List of inhabitants[]

Img Name Dialogue file Description Doctor Merchant Repair Companion Clothing Proto Location
Robed Arroyo elder AHELDER.MSG Leader of Arroyo (TH) Brown robe 00000013 Enclave Oil Rig/ Arroyo village
FoModel NewDoc Charles Curling QCCURLNG.MSG Head of the United States Chemical Corps. Scientist outfit 00000295 Enclave Oil Rig
FoModel UpClassCitizen Daniel Bird QCBIRD.MSG Vice-president of the United States. Smoking 00000294 Enclave Oil Rig
FoModel UpClassCitizen Dick Richardson Qhprzrch.msg President of the United States. TH Smoking 00000293 Enclave Oil Rig
Frank Horrigan model Frank Horrigan QCFRANK.MSG genetically engineered Secret Service agent. TH Frank Horrigan's armor 00000288
00000483 (death scene)
Enclave Oil Rig
Apoweras Granite QCGRANIT.MSG Leader of the Enclave Control Company Squad. Advanced power armor Mk II 00000291 Enclave Oil Rig
Fo1 Black VD Martin Frobisher QCMARTIN.MSG Vault 13 jumpsuit 00000267 Enclave Oil Rig
FoModel NiceLady Secretary QCPRSSEC.MSG Dick Richardson's secretary Nice lady outfit 00000093 Enclave Oil Rig
FoModel NewDoc Tom Murray QCMURRAY.MSG Head of the Atomic Energy Commission. Scientist outfit 00000088 Enclave Oil Rig
Arroyo villager Enclave citizen Enclave communications officer Enclave Control Company Enclave scientist Enclave soldier
Vault 13 prisoner



The Enclave Oil Rig appears in Fallout 2, and is mentioned in Fallout: New Vegas,[13][31] Fallout 4,[11] Fallout 76,[4] and its update Steel Dawn.[32]

Behind the scenes[]

Real world relief used as the Enclave's floor seal in the entrance level.
  • According to Chris Avellone, the number of permanent residents on the oil rig was between 60 and 80.[Non-game 4]
  • The exact coordinates provided by the central computer for Navarro in-game place the oil rig 135 miles inland, between Fresno and Mariposa, California, in a small pond in Raymond, California.
  • The entrance floor seal is based on a real world relief at the 1933 Chicago World's Fair.[Non-game 5]
  • The destruction of the oil rig is mentioned in the Fallout Bible.[Non-game 6]
  • Various elements of the oil rig have been remade in high definition for the purposes of Fallout 76, in particular the Enclave C.A.M.P. bundle, which includes the Enclave walls, turret set, lights, flat-laser door (based on detention level forcefields), and the office wallpaper (from Richardson's office).


Magic: The Gathering[]



  1. MAP.MSG (Fallout 2): "{1516}{}{The Enclave}"
  2. Reactor Maintenance and Repair Robot Control terminal: "Security Access Code Sequence Accepted. Welcome to PoseidoNet:
    "Active PoseidoNet Stations: Atomic Powerplant #5, Navarro Refinery, Control Station ENCLAVE, ENCLAVE Vault-Research Control... AccessDenied"
  3. Transmission console; Control Station ENCLAVE
  4. 4.0 4.1 4.2 MODUS: "We were once connected to Enclave hubs across the United States from here - Raven Rock, the Presidential Rig. It is likely we will never see those places again."
  5. The Whitespring bunker terminal entries; Archival terminal, Cabinet Nuclear Alarm Logs
  6. 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.}"
    The coordinates as given by the computer are erroneous, as they place the oil rig deep inland.
  7. 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. Coordinates are 37 degrees 18 minutes north latitude by 120 degrees 7 minutes west longitude.}"
    The Chosen One: "{127}{}{What the hell does all that crap mean?}"
    Central computer for Navarro: "{128}{}{Searching... Accessing English slang dictionary... Data acquired. Translation follows: 1) It's a long ways out in the ocean. 2) It's off the coast of California. 3) It's west of the city of San Francisco. 4) If you do not understand the geographical coordinate system then you will not find it.}"
    (Central computer for Navarro's dialogue)
  8. See Sierra Depot GNN transcript for more details
  9. Sierra Depot GNN transcript
  10. 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)
  11. 11.0 11.1 Boston Bugle building terminal entries; Boston Bugle article terminal, Article 4
  12. The Whitespring bunker terminal entries; Archival terminal, Schematic Archives, Prototype Power Armor Schematics
  13. 13.0 13.1 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)
  14. 14.0 14.1 Power plant operations
  15. 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)
  16. Enclave remnants
  17. 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?}"
    (Enclave technician's dialogue)
  18. 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.}"
    (Enclave technician's dialogue)
  19. DataPlex 2000 SmarTerminal: "{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.}"
    (DataPlex 2000 SmarTerminal's information)
  20. DataPlex 2000 SmarTerminal: "{103}{}{You see a DataPlex 2000 SmarTerminal, with a full 64k of RAM, it's the very latest in computer technology.}"
    (DataPlex 2000 SmarTerminal's information)
  21. DataPlex 2000 SmarTerminal: "{116}{}{This terminal has a message on it; "Loading Fenestra '98." The terminal is covered with a thick layer of dust. }"
    (DataPlex 2000 SmarTerminal's information)
  22. DataPlex 2000 SmarTerminal: "{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.}"
    (DataPlex 2000 SmarTerminal's information)
  23. DataPlex 2000 SmarTerminal: "{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.}"
    (DataPlex 2000 SmarTerminal's information)
  24. 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.}"
    (Tom Murray's dialogue)
  25. 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.}"
    (A. Ron Meyers' dialogue)
  26. 26.0 26.1 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.}"
    (Enclave scientists' dialogue)
  27. 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.}"
    (Charles Curling's dialogue)
  28. Enclave scientist: "{102}{}{You see a pale but healthy looking citizen.}"
    (Enclave scientists' dialogue)
  29. Enclave scientist: "{138}{}{Must be another security drill.}"
    "{139}{}{Don't those troopers ever get tired of these drills?}"
    (Enclave scientists' dialogue)
  30. Enclave citizen: "{104}{}{Wonder what the safety movie is tonight?}"
    (Enclave scientists' dialogue)
  31. The Courier: "Tell me about the old days with the Enclave."
    Judah Kreger: "I miss those days sometimes. We all had a purpose, you know? I admit that some of the folks in charge were pretty ruthless. The rest of us, though - we were just trying to civilize things. The NCR was still new and it didn't look like they'd last all that long. Then, we lost the oil rig and shortly after that, the base at Navarro. Nobody left except us Remnants."
    (Judah Kreger's dialogue)
  32. Enclave research facility terminal entries; Transmission console, Control Station ENCLAVE
  33. 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.}"


  1. 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."
  2. Fallout 3 Official Game Guide Game of the Year Edition, p. 48: "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 In-game spelling, punctuation and/or grammar 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?"
  3. Fallout 3 Official Game Guide Game of the Year Edition p. 66: "Colonel Augustus Autumn
    Autumn grew up on an oil rig off the California coast (the base of operations for the Enclave, the secretive contingent of the United States government that survived after the apocalypse). His father was the high-ranking Enclave scientist on orders from the president to move all high-ranking officials to the only other secure Enclave location with a functioning ZAX super-computer, Raven Rock. Colonel Autumn has proven to be far less subservient than his scientist father, often openly disagreeing with the president's decisions."
    (Fallout 3 Official Game Guide Game of the Year Edition Wasteland Census)
  4. Question: "I was just wondering how many people were part of the Enclave. How many lived out on the Poseidon Oil Rig and were there others at different locations around the planet/continent? Thanks."
    Chris Avellone: "There were 60-80 people stationed on the Poseidon Oil Rig, and yes, there were/are other remnants of the federal government scattered across the planet and the continent, but as to whether they were affiliated with the Enclave is unknown."
    (Ask Chris Avellone on Vault13.net (archived)
  5. Real world sculpture
  6. Fallout Bible 6
Enclave Oil Rig
Enclave Symbol (FO3)