In the beginning of the game, the oases are owned by wild animals. Oases can be raided. You need quite a big army to raid an oasis with profit.  The animals in an oasis can multiply quite quickly. The less there are, the faster they spawn. It should be possible to get profit from an oasis by raiding it with a few hundred troops and a hero. When conducting a combat simulation, the population of the oasis should be set to 500.  You can see how many and which animals there are in an oasis without scouting by clicking it via the map. 

There are two types of oasis per resource. Type 1 produces only one resource. The other type produces a resource and additionally crop. When you have conquered an oasis, it gives a production bonus to the village from where you conquered it only! The increase applies to the base production of the village and not the actual one.

Types of oases
	Appearance 1	Appearance 2	Increase when occupied	Production when not occupied (1x speed)		Capacity when not occupied
Type 1			+25% lumber per hour	40  10  10 11		1000 each
Type 2		-	+25% lumber per hour, +25% crop per hour	40  10  10  41		2000 each
Type 3			+50% lumber per hour (only available in the grey Natarian area)	80  10  10  11		2000 each
Type 1			+25% clay per hour	10   40  10  11		1000 each
Type 2		-	+25% clay per hour, +25% crop per hour	10   40  10  41		2000 each
Type 3			+50% clay per hour (only available in the grey Natarian area)	10   80  10  11		2000 each
Type 1			+25% iron per hour	10   10  40   11		1000 each
Type 2		-	+25% iron per hour, +25% crop per hour	10   10  40   41		2000 each
Type 3			+50% iron per hour (only available in the grey Natarian area)	10   10  80   11		2000 each
Type 1		-	+50% crop per hour	10   10  10  81		2000 each
Type 2		-	+25% crop per hour	10   10  10  41		1000 each

Conquering natural oases

You can conquer oases with a hero.  Before you can conquer the oasis though, you must first clear it of all nature troops, and then when you attack the oasis with the hero, the conquered oasis is added to the village from where the hero attacked. Remember that an oasis has to be in the small map around the village (center your village!) to be conquerable. Another way to say it, is that it has to be in a radius of 3 squares around your village. You need a hero's mansion level 10 for 1 oasis, level 15 for a second oasis and level 20 to conquer third oasis.

The example below marks "your" village in black and the oases you are theoretically able to conquer in red. Please note that the map shows more than the radius you can conquer oasis from - the radius where you can conquer oasis from is therefore marked in blue.Hint: You can only have 3 oases per village.

You may have recognized that oases are marked with different signs - first of all they give you an overview about the resource bonus they donate (one lumber would for example mean that it is a 25% lumber oases). Beside this the signs also tell you whether the oases is already conquered or not: oasis 1 in the screen shot below is not conquered (it shows a green border around the indicator for the type of the oasis) and oasis 2 in the screen shot below is conquered (it shows a red border around the indicator for the type of the oasis).

Conquering/attacking player-owned oases

To conquer an oasis from another player, you have to destroy the defence and attack with the hero one or more times. If the defender owns 3 oases, you only have to attack 1 time with your hero. If the defender has 2 oases, you have to attack 2 times. If the defender has only 1 oasis, you have to attack 3 times, then the oasis is yours.
Hint: Heroes do not vanish after annexing an oasis like administrators (Senator, Chief,Chieftain) do after conquering villages but will continue to exist like before.

Raiding an oasis will cause your troops to plunder up to 10% of the resources from the village owning the oasis. The resources in the player owned oasis will regenerate in 10 minutes. Thus attacking an oasis 7 minutes after a first raid has occurred one will mean you can only grab 7% of the resources from the owning village. Raiding your own oases will see your own villages lose the resources, for a net return of 0 resources.

In order to defend an oasis against raids you can reinforce it with troops which can be sent back via the Rally Point of the owning village and are fed by this village.

Releasing Oases

If you need to release an oasis that you have conquered, you may do so in the hero's mansion located in the village to which the oasis is attached.  Click on the red "X" next to the oasis you would like to release.  It then takes 6 hours for the oasis to be released from the village.  Scrolling down in the hero's mansion will reveal a new table with the title "Abandon oasis" and has information such as the coordinates of the oasis being released, as well as a countdown timer to its release.  Clicking the red "X" in that table will stop the release of the oasis.