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Repsol Q2 Pad Gas and Mud Release SITREP # 1

ALASKA DEPARTMENT OF ENVIRONMENTAL CONSERVATION
Division of Spill Prevention and Response
Prevention and Emergency Response Program

SITUATION REPORT
Repsol Q2 Pad Gas and Mud Release

SITREP # 1

SPILL NUMBER: 12399904601

TIME/DATE OF SPILL: Repsol reported the incident to ADEC at 10:29 AM on February 15, 2012.

TIME/DATE OF SITUATION REPORT: 4:00 PM on February 15, 2012

TYPE/AMOUNT OF PRODUCT SPILLED: Repsol estimates that approximately 1,200 gallons of drilling mud have been released to the gravel pad and surrounding snow covered tundra. An unknown amount of gas has been released.

INCIDENT LOCATION: Q2-Pad, Nuiqsut, Alaska (Lat/Log: 70.2719/ -150.4451)

CAUSE OF SPILL: While drilling an exploratory well, a shallow gas pocket was penetrated at 2,600 feet, which resulted in a gas kick. The gas kick drove the mud out of the drilling hole and into the rig with some mud blown to the gravel pad and snow covered tundra.

POTENTIAL RESPONSIBLE PARTY (PRP): Exploration and Production – Repsol, USA

RESPONSE ACTION: Repsol evacuated all personnel from the pad due to safety concerns associated with anticipated high levels of methane gas. An incident management team has been activated in Anchorage. Repsol has contracted the O’Briens Group to manage the incident. Repsol is researching the possibility of the Wild Well Control Company from Houston, Texas to be flown to Prudhoe Bay to assist controlling the well. Four ADEC staff will be at the incident command post established in Anchorage and one ADEC staff will arrive in Prudhoe Bay tomorrow morning to evaluate the incident and response. Alaska Clean Seas, a North Slope response company, is responding to the release.

SOURCE CONTROL: The natural gas is currently being run though the drilling rig as diverters. The well is currently not under control.

RESOURCES AFFECTED: Snow covered tundra and gravel pad.

FUTURE PLANS AND RECOMMENDATIONS: Control the well, develop response tactics and maintain incident management team in Anchorage for the duration of the response.

UNIFIED COMMAND AND PERSONNEL:
Incident Commander: Jeremy Michaels, O’Briens Group
S.O.S.C.: Tom DeRuyter, ADEC
Field SOSC: Wes Ghormley, ADEC
Nuiqsut
Repsol Q2 Pad Gas and Mud Release Sitrep 1 February 15, 2012
Page 2 of 2

WEATHER: Today: Mostly cloudy with areas of low fog, some isolated snow flurries, temperatures to 14 degrees below zero, east winds around 10 mph.

TIME/DATE OF THE NEXT REPORT: 12:00 PM on February 16, 2012

FOR ADDITIONAL INFORMATION CONTACT: Wes Ghormley, ADEC (907) 451-2164 or (907) 322-0569
Ty Keltner, PIO, ADEC (907) 465-5009

Photographs and other spill information will be available for viewing at: http://www.state.ak.us/dec/spar/perp/index.htm

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