HWCG LLC is a not-for-profit consortium of deepwater oil and gas companies. HWCG maintains a comprehensive deepwater well containment response model that can be activated immediately in the event of a US Gulf of Mexico subsea blowout. It comprises oil and gas companies operating in the Gulf and incorporates the consortium’s generic well containment plan. HWCG has a healthy mutual aid component whereby HWCG members will respond and support another member’s incident.