Technical risks are problems related to such externals as weather conditions.

Political risks are limitations in or interruption of external supplies.

Regulatory risks create inabilities to deliver because of wrong regulation.

Economic risks create problems in gas delivery because of such events as price increases.

Environmental risks include contamination of deliveries.

The discussed vulnerabilities can each lead to many risks in different conditions. The risks can also be divided into two categories along a time horizon. Short-term Hsks are those that have minimal effects. Long-term risks, however, are considered ^the ones that have the longest lasting effects.