| Definition: | Number of producing wells in a 40 acre cell classified by the following outline resulting in oil, gas, or mixed production. |
| Black - (no identified wells) | |
| Pink - (1 well) | |
| Red - (2-4 wells) | |
| Light Green - (5-8 wells) | |
| Green - (9 to 16 wells) | |
| Light Blue - (17 - 32 wells) | |
| Dark Blue - (33 - 64 wells) | |
| Light Sky Blue - (65 - 128 wells) | |
| Sky Blue - (129 - 256 wells) | |
| Purple - (>256 wells) |