Oil is mainly used to build troops. Oil can be obtained by building an Oil Derrick. Building Oil Derricks on oil patches generates more oil.
Oil patches are used to collect more oil. If you place an Oil Derrick over an Oil patch it will produce more oil then a normal Oil Derrick.
Patch Level | Percentage Increase |
---|---|
0 (No Patch) | 0% |
1 | 20 |
2 | 40 |
3 | 60 |
4 | 80 |
5 | 100 |
6 | 120 |
7 | 140 |
8 | 160 |
9 | 180 |
10 | 200 |