Crude oil

2017-08-07T05:46:19Z

Malmberg: Adds reference to fluid wagon as a transportation alternative

{{Languages}}
{{:Infobox:Crude oil}}

{{Main|Oil processing}}

'''Crude Oil''' is a [[liquid]] extracted by [[Pumpjack]]s from Oil fields and is converted to [[Petroleum gas]], [[Light oil]], and [[Heavy oil]] by an [[Oil refinery]]. It can be transported either in [[pipe]]s, [[barrel]]s or [[fluid wagon]]s.

It can also be used by [[Flamethrower turret]]s as ammo.

== Oil field ==

Each oil field has a yield displayed as x%. Each percent is equal to 75 pumpjack cycles. An oil field with 80% has between 6000 and 6074 cycles left, as yield does not display decimal places.

While cycles left is greater than 750 (10%), each pumpjack cycle reduces the number of cycles left by one.

So unless an oil field with less than 10% is created by map editor, yield will never drop below 750 cycles.

The amount of oil a pumpjack extracts per cycle is 1.0 multiplied by yield or [number of uses left] / 7500, but not greater than 10.0.

== History ==
{{history|0.15.0|
* Crude oil balancing: Halved the resource amount on the map Increased the minimum yield from 10% to 20% Halved the rate of depletion. Doubled the starting yield. Fixed that the mechanics of increasing richness with distance from start wasn't working for crude oil.}}
{{history|0.9.0|
* Introduced}}

== See also ==
* [[Liquids system]]
* [[Oil processing]]

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Pumpjack

2017-08-07T05:42:23Z

Malmberg: Updates minimum yield to 20%

{{Languages}}
{{:Infobox:Pumpjack}}

'''Pumpjacks''' extract [[Crude Oil|crude oil]] from [[Oil field|oil fields]]. Each oil field can be covered by only one pumpjack at a fixed spot. The pumpjack will then output an amount of crude oil per cycle equal to 10 multiplied by the field's yield (e.g. 54 crude oil for 538% yield) per second. Without speed modules one pumpjack cycle takes one second to complete.

Extracting oil lowers the field's yield by 1% per 75 pumpjack cycles to a minimum of 20% of the initial yield or 2 oil unit per second, whichever is larger.

Pumpjacks are limited to a maximum output of 100 crude oil per cycle, achieved by an oil field with more than 999% yield. However, such a high yield is fairly rare.

Pumpjacks output tile location is fixed relative to its orientation.

Pumpjacks cannot be placed on a non-oilfield tile.

== Tips ==
If oil fields are depleted ( to the minimum of 20% ) speed [[Module]]s are a good option to raise the pumpjacks output. With two [[Speed module 3]]'s the output doubles from 1 to 2 crude oil per second and even more when using additional [[Basic beacon]]s ( + another 0.5 oil per beacon per second ).

The formula to determine the modified output is:

Output of unmodified oil field * ( Number of modules in pumpjack * bonus from module ) + output of unmodified oil field * ( number of Beacons * ( number of modules * distribution efficiency ) * bonus from module + 1 )

{| class="wikitable"
!colspan="2" | Example
|-
|For 1 pumpjack on a depleted oil field with two lvl 3 speed modules and 6 beacons with each two lvl 3 speed modules:
|0,1 * ( 2 * 0,5 ) + 0,1 * ( 6 * ( 2 * 0,5 ) 0,5 + 1 ) = 0,5 Crude oil per 1 second.
|-
|Assuming that there will be always 2 modules equipped in pumpjack and beacons, formula can be shortened :
|0,1 + 0,1 * ( 6 * 0,5 + 1 ) = 0,5 Crude oil per 1 second.
|}

== History ==

{{history|0.15.0|Pumpjacks can be turned on and off using the circuit network. They can also output the current oil mining rate.}}

{{history|0.9.0|
* Introduced}}

== See also ==
* [[Liquid network]]

{{ProductionNav}}

[[Category:Items]]
[[Category:Liquid network]]

Official Factorio Wiki - User contributions [en]

Crude oil

Pumpjack