The Field Outline shows a Petroleum Field's boundary on maps. It represents the outside the limit of productive wells in a field. The distance from the outward-most producing wells in a field to the field outline varies depending on the type of production within the field:
| ● | Normal Oil and Gas Fields |
0.25 mile |
| ● | Coal Bed Methane Fields |
0.5 mile |
| ● | Trenton Field(s) |
1 mile |
| ● | New Albany Shale and Antrim Shale Fields |
1 mile |
Although some field outlines may reflect the geometry of controlling geologic features or actual reservoirs, they are more likely arbitrarily drawn based on the drilling history of a field. Petroleum Fields may contain multiple Completion Formations or Pay Zones.
When successful drilling expands a field boundary into the outline of another field, they may be combined into a Consolidated Field under a single field name and the resulting field outline encompasses the combined field area.