Changes

==Least to most risk==

==Least to most risk==

[[file:petroleum-systems_fig3-19.png|thumb|{{figure number|3}}.]]

[[file:petroleum-systems_fig3-19.png|400px|thumb|{{figure number|2}}.]]

Using [[:file:petroleum-systems_fig3-19.png|Figure 3]] and stipulating that the complementary play is on the migration path for this petroleum system, a play located within or outside the geographic extent of the system has the following level of risk:

Using [[:file:petroleum-systems_fig3-19.png|Figure 2]] and stipulating that the complementary play is on the migration path for this petroleum system, a play located within or outside the geographic extent of the system has the following level of risk:

* Least risk; accumulations surround the trap.

* Least risk; accumulations surround the trap.