Well Control Events North Texas Exploration Production Safety Network January 22, 2008

First Response  Notification,  Zoning,  Initial Containment &  Evacuation

Notification FIRST RESPONDER Activate alarm/siren if available NOTIFY Unit/Area Foreman Activate appropriate response plan NOTIFY ERT Team & Well Control Refer to Internal Reporting Criteria for minimum reporting/notification requirements. Complete remaining notifications accordingly. HSE Safety Officer HSE Representative Production Operations Mgr. Exec. V.P. Onshore Production Production Mgr. Exec. V.P. Offshore Alternate Insurance Regulatory Affairs HSE Manager Executive Staff (As Required) Other Affiliates (As Required) Drilling Drilling Eng. Drilling Mgr. Drilling Eng. Drilling Mgr.

ZONE CONTROL SUPPORT ZONE CONTAMINATION PERIMETER

Gas Specs Production Rate Air Dispersion Model

Oil fire burns at approximately 4000 F and a gas fire at 6000 F.

Initial Containment  Deploy Absorbent Boom  Build Retention Ponds  Stop Run-off with dams

Community Evacuation

INSTITUTING APPROPRIATE SAFETY MEASURES  Site Safety Officer  Identifying Hazards  Accountability Procedures  Hazard Control Zones  Selecting PPE  Training Requirements  Tailgate Safety Briefings  Decontamination Operations  First Aid  Emergency Medical Procedures  Site Safety Plan

PERSONNEL ACCOUNTABILITY  Check-In  On-Scene Commander, Site Safety Officer  Training, Clothing, and Briefing  Tracking Hot or Warm Zone Personnel

Mobilization of Response Equipment  Staging Area  Road Clearance  Off Site Staging (QUEUE)  Logistics Officer  Flagging personnel

Equipment Mobilized  Athey Wagon  2 x 4000 gpm fire pumps and monitors  Pipe rack and tools  Halliburton Jet Cutter  All equipment trucked or air freight

Air Transport

Well Control Operations  Containment,  Extinguishing, &  Control

Filling Pits with Water from Pipelines

Drill Site Schematic Top View Cat Walk Rig Well Head / BOP Draw works Mud Pumps Engines Mud Tanks Accumulator Reserve Pit Diesel Tank Panic Line Flare Line Mud / Gas Separator Flow Line Choke Manifold Entrance Road Warm Zone Hot Zone Radiant Heat Zone

Water Supply – Fire Can Be Extinguished By Various Means… Solution Based On Circumstances  Method of Supplying And Storing  Excavating Large Earthen Pit (250’ x 250’ x 8’ )  Transported By Truck or Water Wells

Extinguishing Well Fires  Pure Water (Fresh or Seawater)  Dry Chemicals (Potassium Bicarbonate, Sodium Bicarbonate, etc).  Explosives  Combinations of Explosives, Water, and/or Chemicals