NATIONAL RESPONSE CENTER 1-800-424-8802 *** For Public Use *** Information released to a third party shall comply with any applicable federal and/or state Freedom of Information and Privacy Laws Incident Report # 791414 INCIDENT DESCRIPTION *Report taken at 12:00 on 20-MAR-06 Incident Type: VESSEL Incident Cause: OTHER Affected Area: GULF OF MEXICO The incident occurred on 20-MAR-06 at 08:23 local time. Affected Medium: WATER GULF OF MEXICO ____________________________________________________________________________ SUSPECTED RESPONSIBLE PARTY Organization: DIAMOND OFFSHORE HOUSTON, TX 77210 Type of Organization: PRIVATE ENTERPRISE ____________________________________________________________________________ INCIDENT LOCATION County: UNKNOWN State: LA Zip: 77210 Latitude: 26 Degrees 25' 0" N Longitude: 91 Degrees 3' 0" W WALKER RIDGE / BLOCK 544 ____________________________________________________________________________ RELEASED MATERIAL(S) CHRIS Code: NCC Official Material Name: NO CHRIS CODE Also Known As: SYNTHETIC BASED DRILLING FLUID Qty Released: 4851 GALLON(S) Qty in Water: 4851 GALLON(S) ________________________________________________________________________ DESCRIPTION OF INCIDENT THE CALLER STATED THAT DUE TO SEVERE WEATHER, THERE WAS AN EMERGENCY DISCONNECT FROM A DRILLING WELL. ____________________________________________________________________________ INCIDENT DETAILS Platform Rig Name: OCEAN CONFIDENCE Platform Letter: Location Area ID: WALKER RIDGE Location Block ID: 544 OCSG Number: OCSP Number: State Lease Number: Pier Dock Number: Berth Slip Number: ---SHEEN INFORMATION--- Sheen Color: UNKNOWN Sheen Odor Description: Sheen Travel Direction: Sheen Size Length: Sheen Size Width: ---WATER INFORMATION--- Body of Water: GULF OF MEXICO Tributary of: Nearest River Mile Marker: Water Supply Contaminated: NO ---VESSEL INFORMATION--- Name: OCEAN CONFIDENCE Number: 185 Aground: NO Flag: UNITED STATES OF AMERICA Length: Breadth: Draught: Type: DRILLING RIG Hull Construction: Fuel Capacity: Fuel on Board: Cargo Capacity: Cargo on Board: ____________________________________________________________________________ DAMAGES Fire Involved: NO Fire Extinguished: UNKNOWN INJURIES: NO Hospitalized: Empl/Crew: Passenger: FATALITIES: NO Empl/Crew: Passenger: Occupant: EVACUATIONS: NO Who Evacuated: Radius/Area: Damages: NO Length of Direction of Closure Type Description of Closure Closure Closure Air: N Road: N Major Artery: N Waterway: N Track: N Passengers Transferred: UNKNOWN Environmental Impact: UNKNOWN Media Interest: NONE Community Impact due to Material: NO ____________________________________________________________________________ REMEDIAL ACTIONS CALLER STATED THEY PUT AN "A" ON IT Release Secured: YES Release Rate: Estimated Release Duration: ____________________________________________________________________________ WEATHER Weather: PARTLY CLOUDY, ºF Wave Condition: 6 HIGH (12 - 20 FT) Current speed: 33 ____________________________________________________________________________ ADDITIONAL AGENCIES NOTIFIED Federal: State/Local: State/Local On Scene: State Agency Number: ____________________________________________________________________________ NOTIFICATIONS BY NRC USCG HSOC AT DHS (USCG HSOC DESK) 20-MAR-06 12:09 CG INVESTIGATIVE SERVICE HQ (PRIMARY) 20-MAR-06 12:09 DOT CRISIS MANAGEMENT CENTER (PRIMARY) 20-MAR-06 12:09 USCG FIST NEW ORLEANS (SUPERVISOR, FIST NEW ORLEANS) 20-MAR-06 12:09 LA DEPT OF ENV QUAL (PRIMARY) 20-MAR-06 12:09 LA OFFICE OF EMERGENCY PREPAREDNESS (PRIMARY) 20-MAR-06 12:09 LA OFFICE OF GOV ATTN ROLAND GUIDRY (PRIMARY) 20-MAR-06 12:09 LA OFFICE OF PUBLIC HEALTH (PRIMARY) 20-MAR-06 12:09 MSO MORGAN CITY (PRIMARY) 20-MAR-06 12:11 NATIONAL INFRASTRUCTURE COORD CTR (PRIMARY) 20-MAR-06 12:09 NOAA RPTS FOR LA (PRIMARY) 20-MAR-06 12:09 SECTOR NEW ORLEANS (COMMAND CENTER) 20-MAR-06 12:09 LA STATE POLICE (PRIMARY) 20-MAR-06 12:09 ____________________________________________________________________________ ADDITIONAL INFORMATION THE CALLER HAD NO ADDITIONAL INFORMATION ___________________________________________________________________________ *** END INCIDENT REPORT # 791414 ***