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Item #: SCP-XXXX

Object Class: Safe Euclid

Special Containment Procedures: The geographic area containing SCP-XXXX is to be surrounded with 900 V electric fence no less than 2 m in height. No unauthorized personnel are to be granted access to SCP-XXXX, and the area is to be deemed inaccessible to civilians under the guise of a wildlife preserve.

Collection of SCP-XXXX-01 samples are available to all personnel of clearance Level 3 or higher, or to personal with clearance Level 2 or higher while under supervision of at least two Level 3 research personnel. All samples of SCP-XXXX-01 collected are to be stored in the Flammable and Combustive Materials Chamber at Site 29, following analysis and testing.
Samples of SCP-XXXX-01 are only to be taken by personnel of clearance Level 3 or higher, and analysis is to be conducted exclusively in the Flammable Materials Testing Sector of Site 32. Combustion of SCP-XXXX-01 is strictly forbidden outside of the Flanmable Materials Testing Center, and all samples are to be neutralized via dilution and disposed of immediately following testing.

Description: SCP-XXXX is an oil reservoir located in ████████, ████████, United States. The reservoir is estimated to have a radius of 15 km and is located approximately 2400 m below the surface, though exact measurements are poorly defined, as the unusual depth of the reservoir prevents definitive measurements from being recorded using standard equipment.

The petroleum contained within this reservoir is chemically and functionally identical to petroleum typically found in the region, with no significant variations observed on a molecular level. No anomalies have been observed in SCP-XXXX's crude oil, but become apparent when the oil is refined into standard gasoline, at this point designated SCP-XXXX-01.

Although SCP-XXXX-01 is chemically identical to standard gasoline, it contains significantly more chemical energy. The exact energy contents of SCP-XXXX-01 vary, typically measuring at about 158,500,000 joules per liter (about 500% the energy content of a liter of typical gasoline), though records exist of samples containing levels as high as [DATA EXPUNGED].

Despite containing massive amounts of chemical energy, SCP-XXXX-01 is also unusual in that it produces significant less emissions during combustion, with a typical liter producing less than 60% of the emissions that the equivalent quantity of standard gasoline would produce. These emissions, designated SCP-XXXX-02, contain numerous anomalous properties within themselves.

While the emissions produced by combustion of standard gasoline are composed chiefly of carbon dioxide, the composition of SCP-XXXX-02 is widely variable, to the point where two different SCP-XXXX-01 samples refined from the exact same crude oil sample can produce entirely different emissions. These compositions have varied from nearly pure oxygen to extremely concentrated levels of nitrogen oxides, even including chemicals not found in any analysis of SCP-XXXX-01, such as potassium, phosphate, calcium, and [DATA EXPUNGED]. There does not yet exist any way to manipulate the composition of SCP-XXXX-02.

Due to the high chemical energy and low emission rate of combustion of SCP-XXXX-01, it has frequently been discussed as an efficient fuel for processes requiring significant amounts of energy. Research into the applications of SCP-XXXX-01 as a fuel source is currently ongoing. Proposals for testing are available for any research personnel meeting the qualifications outlined in the containment procedures. See Addendum.

Recovery Log XXXX: SCP-XXXX came to public attention in the early 19██s, after media reports began surfacing about the first reservoir of oil being found in the region in ██ years. When the anomalous properties of SCP-XXXX-01 were discovered and subsequently publicized, the Foundation intervened and seized the land under the guise of eminent domain by the Department of Energy. The media reports were dismissed as misinformation from fossil fuels lobbyists, and the area was restricted to the public under the guise of protecting endangered wildlife from further exploitation. Amnestics were administered to the excavation company involved in the reservoir's discovery and the current containment procedures were implemented.

Addendum XXXX-A: Following the incident at Site 29 and SCP-XXXX’s reclassification as Euclid, all research towards utilization of SCP-XXXX-01 as a potential source of fuel are to be suspended indefinitely. Recent experimentation has revealed that, presumably unbeknownst to the researchers at Site 29, SCP-XXXX-02 contains more anomalous properties than initially suspected. Most notably, it was discovered that, upon combustion, SCP-XXXX-02 retains the ability to produce additional emissions of widely varying composition. These secondary emissions continue to retain this ability, as do the resulting tertiary emissions, and so on. Because both the composition and concentration of SCP-XXXX-02 and its byproducts are also extremely variable, there exists a possibility that combustion of SCP-XXXX-01 could result in highly flammable instances of SCP-XXXX-02, which would undergo immediate combustion via the initial heat source and in turn produce additional flammable secondary-emissions, igniting a chain reaction that could result in significant damage to both property and personnel. This is believed to be the cause behind the incident at Site 29, and while investigation is still pending, the enormous risk posed by this possibility has lead to the O-5 Council unanimously voting to suspend any and all research into SCP-XXXX-01's utilization as a fuel source.