Department of Commerce, Community, and Economic Development
Alaska Oil and Gas Conservation
Commission
HOME
EVENTS
DATA
Data List
Drilling
Production
Orders
Data Miner
Document Search
REPORTS
Reports and Charts
Pool Statistics
FORMS
LINKS
Links
Test Notification
Data Requests
Regulations
Industry Guidance Bulletins
How to Apply
ABOUT US
History
Staff
HELP
Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
213-133
7. If perforating: 1. Type of Request: 2. Operator Name: 3. Address: 4. Current Well Class:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Property Designation (Lease Number):10. Field: Abandon Suspend Plug for Redrill Perforate New Pool Perforate Plug Perforations Re-enter Susp Well Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown What Regulation or Conservation Order governs well spacing in thes pool? Will perfs require a spacing exception due to property boundaries?Yes No 11. Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD: Effective Depth TVD: MPSP (psi): Plugs (MD): Junk (MD): PRESENT WELL CONDITION SUMMARY Perforation Depth MD (ft): Perforation Depth TVD (ft):Tubing Size: Tubing Grade: Tubing MD (ft): Packers and SSSV Type:Packers and SSSV MD (ft) and TVD (ft): Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 12. Attachments: 14. Estimated Date for Commencing Operations: 13. Well Class after proposed work: 15. Well Status after proposed work: 16. Verbal Approval: 17. I hereby certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approcal. Proposal Summary Wellbore schematic BOP SketchDetailed Operations Program OIL GAS WINJ WAG GINJ WDSPL GSTOR Op Shutdown Suspended SPLUG Abandoned ServiceDevelopmentStratigraphicExploratory Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: AOGCC USE ONLY Commission Representative: Conditions of approval: Notify AOGCC so that a representative may witness Sundry Number: Location ClearanceMechanical Integrity TestBOP TestPlug Integrity Other Conditions of Approval: Post Initial Injection MIT Req'd?Yes No Subsequent Form Required: Approved By:Date: APPROVED BY THE AOGCCCOMMISSIONER PBU Z-70 Renew Well Suspension Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 213-133 50-029-23500-00-00 341I ADL 0028245, 0028262 14036 Conductor Surface Intermediate Production Liner 8982 80 3718 11046 10473 20" 9-5/8" 7" 8036 45 - 125 45 - 3763 45 - 11091 0 45 - 125 45 - 3138 45 - 8604 None 3090 5410 10473, 10996 5750 7240 None 4-1/2" 12.6# L80 43 - 4123N/A Structural None No SSSV Installed Date: Torin Roschinger Area Operations Manager Oliver Sternicki Oliver.Sternicki@hilcorp.com 907.564.4891 PRUDHOE BAY 7/25/2023 Current Pools: PRUDHOE OIL Proposed Pools: Suspension Expiration Date: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 Comm. Comm.Sr Pet Eng Sr Pet Geo Sr Res Eng Form 10-403 Revised 06/2023 Approved application is valid for 12 months from the date of approval.Submit PDF to aogcc.permitting@alaska.gov By Grace Christianson at 8:25 am, Jul 12, 2023 323-388 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662), ou=Users Date: 2023.07.11 14:23:22 -08'00' Torin Roschinger (4662) July 12, 2028 MGR13JUL23 341J SFD SFD 7/26/2023 DSR-7/12/23 PBU Z-70 GCW 07/26/2023JLC 7/26/2023 07/26/23 Brett W. Huber, Sr. Digitally signed by Brett W. Huber, Sr. Date: 2023.07.26 19:38:43 -06'00' RBDMS JSB 072823 Hilcorp North Slope, LLC Torin Roschinger, PBW Operations Manager 3800 Centerpoint Dr, Suite 1400 Anchorage, Alaska 99503 07/11/2023 Chairman Brett Huber, Sr. Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage, Alaska 99501 Subject: Prudhoe Well Z-70(PTD #213133) Application for Renewal of Existing Suspension (10-403) Dear Chairman Huber, An AOGCC witnessed suspended well inspection of Prudhoe well Z-70 was conducted on 08/06/2022 (20 AAC 25.110 (h)). The submitted suspended well inspection reflects the current condition of the well (reference 20 AAC 25.110 (f)) and supports the request for renewal of suspension. Recent events from this well indicate that this well is mechanically sound. Specific attachments include: x Suspended Well Site Inspection form documenting the pressures and site condition. x Wellbore diagram illustrating the current configuration of the well. Prudhoe well Z-70 was suspended on 01/19/2014 and has future utility as a rig sidetrack candidate. The strata through which the well was drilled is neither abnormally geopressured nor depleted. The well is mechanically sound and secured with a passing pressure test of the production casing and cement retainer to 3500 psi on 01/16/2014. Based on these conditions and the inspection on 08/06/2022 Prudhoe well Z-70 meets the provisions required in 20 AAC 25.110 (a)(1). Hilcorp North Slope, LLC requests approval for renewal of the existing suspension status for this well. Attached is an Application for Sundry Approval (10-403) with a technical justification summarizing the information on the current status and condition of the well (reference 20 AAC 25.110 (a), (b), (e), (h)). In summary, Hilcorp believes Prudhoe well Z-70 is mechanically sound and secure and meets the requirements for renewal of suspended status. If you have any questions, please call me at 406-570-9630 or Oliver Sternicki at 907-564-4891. Sincerely, Torin Roschinger PBW Operations Manager Attachments Technical Justification 2022 Suspended Well Site Inspection form Wellbore Schematic Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662), ou=Users Date: 2023.07.11 12:47:18 -08'00' Torin Roschinger (4662) Prudhoe Well Z-70 (PTD #213133) Technical Justification for Renewal of Suspended Status 07/11/2023 Well History and Status Prudhoe well Z-70 (PTD #213133) was drilled as a producer in December 2013/ January 2014. The target Zone 4 production interval was found to have discontinuous lobes of gas saturated sands and heavily water swept sands resulting in little pay. The well was not completed with production tubing due to the lack of sufficient reserves. A cement retainer and cement isolating the open hole section was set and the well converted to suspended status on 01/19/2014. A passing pressure test was conducted on the rig with the production casing and cement retainer tested to 3500 psi on 01/16/2014. The well future utility is as a sidetrack candidate. The well will not allow the migration of fluids, will not damage freshwater or producing or potentially producing formations, will not impair the recovery of oil or gas, and is secure, safe and not a threat to public health. The strata through which the well was drilled is neither abnormally geo-pressured or depleted. Condition of the Wellhead and Surface Location Prudhoe well Z-70 is located on an active, well maintained pad with clean gravel. The pit and surrounding area are in good condition. There is no discoloration and no sheens on the pad, pits, or in nearby water. The well pressure readings are T/I/O = 4/ 5/ 66 psi. Request Hilcorp North Slope, LLC requests approval for renewal of the existing suspension status for Z- 70. A variance to the provisions of 20 AAC 25.110 (c) (2) is also requested under 20 AAC 25.112 (i) to allow the well to remain as suspended in its current condition. All hydrocarbon intervals are isolated and there are no underground sources of fresh water in this area. Suspended Well Inspection Review Report Reviewed By: P.I. Suprv Comm ________ JBR 09/02/2022 InspectNo:susLOL220806123906 Well Pressures (psi): Date Inspected:8/6/2022 Inspector:Lou Laubenstein If Verified, How?Other (specify in comments) Suspension Date:5/15/2014 #314-043 Tubing:4 IA:5 OA:66 Operator:Hilcorp North Slope, LLC Operator Rep:Ryan Holt Date AOGCC Notified:8/5/2022 Type of Inspection:Subsequent Well Name:PRUDHOE BAY UNIT Z-70 Permit Number:2131330 Wellhead Condition Wellhead in good visible condition Surrounding Surface Condition Surrounding area clean and free of debris Condition of Cellar Cellar box was full of clean runoff water, no sheen Comments Well location verified with Pad map Supervisor Comments Photo (1) attached Suspension Approval:Sundry Location Verified? Offshore? Fluid in Cellar? Wellbore Diagram Avail? Photos Taken? VR Plug(s) Installed? BPV Installed? Friday, September 2, 2022 9 9 9 9 9 9 9 9 9 2022-0806_Suspend_PBU_Z-70_photos_ll Page 1 of 1 Suspended Well Inspection – PBU Z-70 PTD 2131330 AOGCC Inspection # susLOL220806123906 Photos by AOGCC Inspector L. Laubenstein 8/6/2022 By Anne Prysunka at 1:51 pm, Aug 09, 2022 MGR09SEP2022 Operator Name:2. Development Exploratory Service 5 Permit to Drill Number:213-133 6.50-029-23500-00-00 PRUDHOE BAY, PRUDHOE OIL Hilcorp North Slope, LLC 5. Well Name and Number:8. 10.Field/Pools: Well Class Before Work4. Present Well Condition Summary:11. Total Depth: measured feet feet Plugs measured feet feet Effective Depth: measured feet feet Packer measured feet feettrue vertical true vertical 14036 10473 8036 None None 10473, 10996 None Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20" 45 - 125 45 - 125 Surface 3718 9-5/8" 45 - 3763 45 - 3138 5750 3090 Intermediate Production 11046 7" 45 - 11091 45 - 8604 7240 5410 Perforation Depth: Measured depth: None feet True vertical depth: N/A feet Tubing (size, grade, measured and true vertical depth)4-1/2" 12.6# L80 43 - 4123 43 - 3380 Packers and SSSV (type, measured and true vertical depth) None Liner 12. Stimulation or cement squeeze summary: Intervals treated (measured): N/A Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure 0000 00 0 0 0 0 Representative Daily Average Production or Injection Data Prior to well operation: Subsequent to operation: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Name: Contact Email: Andy Ogg PBFieldWellIntegrity@hilcorp.co Authorized Name:Stan Golis Authorized Title: Authorized Signature with Date:Contact Phone:907-659-5102 Treatment descriptions including volumes used and final pressure: 13. Operations Manager Operations Performed1. Abandon Plug Perforations Fracture Stimulate Pull Tubing GSTOR WINJ WAG GINJ SUSP 5 SPLUG 16. Well Status after work:Oil Gas Exploratory Development 5 Stratigraphic 15. Well Class after work: Service WDSPL 14. Attachments: (required per 20 AAC 25.070.25.071, & 25.283) Daily Report of Well Operations Copies of Logs and Surveys Run true vertical measured8982 Sundry Number or N/A if C.O. Exempt: No SSSV Installed Junk Packer Printed and Electronic Fracture Stimulation Data 5 Inspect Suspended Well Operations shutdown Change Approved Program 5 N/A Senior Pet Engineer:Senior Res. Engineer: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Suspend Perforate Other Stimulate Alter Casing Plug for Redrill Perforate New Pool Repair Well Re-enter Susp Well 3.Address: 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 7.Property Designation (Lease Number):ADL 028262 PBU Z-70 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): Stratigraphic Other: API Number: Form 10-404 Revised 03/2020 Submit Within 30 days of Operations By Samantha Carlisle at 12:03 pm, Aug 17, 2020 Digitally signed by Stan Golis DN: cn=Stan Golis, ou=Users Date: 2020.08.17 09:25:57 - 08'00' Stan Golis MGR02SEP2020 SFD 8/17/2020, ADL002845 SFD 8/17/2020RBDMS HEW 8/19/2020 DSR-8/17/2020 ACTIVITY DATE SUMMARY 8/2/2020 T/I/O = 0/0/200. Suspended well inspection by AOGCC rep Matt Herrera. Daily Report of Well Operations PBU Z-70 Suspended Well Site Inspection Form Notify AOGCC Inspectors at least 10 days prior to inspection to allow witness Well Name:Z-70 Field/Pool: Prudhoe Bay / Prudhoe Oil Permit # (PTD):2131330 API Number: Operator:Hilcorp North Slope LLC Date Suspended: 1/19/2014 Surface Location:Section: 19 Twsp: 11N Range: 12E Nearest active pad or road:Z Pad Take to Location Digital camera Map showing well location /Aerial photos Brief well history Wellbore diagram showing downhole condition Latest Sundry or Completion report Past Site Visit documentation Site clearance documentation Pressure gauges, fittings, tools Sample containers for fluids on or near pad Condition of Surface Location AOGCC requires: 1) a description of the condition of the surface location, including discoloration, fluids or sheens visible on the ground or in any nearby water, 2) photographs showing the condition of the location surrounding the well General location condition: Good. Pad or location surface: Good. Location cleanup needed: No. Pits condition: N/A. Surrounding area condition: Good. Water/fluids on pad: No. Discoloration, Sheens on pad, pits or water: None. Samples taken: None. Access road condition: Access road and pad in good condition. Photographs taken (# and description):No. Condition of Wellhead AOGCC requires: 1) a description of the condition of the wellhead, 2) well pressure readings, where practicable, 3) photographs showing the wellhead condition Wellhead/tree/valve description, condition: Tree - Upper Master, Lower Master Wellhead - TBG spool with 2 casing valves, Starting Head with 1 casing valve. Cellar description, condition, fluids: Snow/Ice Melt. Clean Water. Level below lowermost casing valve. Rat Hole: N/A. Wellhouse or protective barriers: Yes, jersey barrier between wellhouses. Well identification sign: Yes. Tubing Pressure (or casing if no tubing):0 psi. Annulus pressures: IA / OA = 0 psi / 200 psi. Wellhead Photos taken (# and description): Yes, (1) wellhead and tree and sign, (1) backside of wellhead and tree showing barrier Work Required: No. Operator Rep (name and signature):Eric Dickerman AOGCC Inspector:Matt Herrera Other Observers: Inspection Date: 8/2/2020 AOGCC Notice Date: 7/31/2020 Time of arrival: 10:30am Time of Departure: 10:45am Site access method: Truck/Walk. 500292350000 Re-Inspection Suspended Well Inspection Review ReDOrf bspectNo: susK4FH200803145524 Date Inspected: 8/2/20I0 ' Inspector: Matt ' Type ofInspection � | Well Name: -- --1 PRUDH0EBAY UN|TZ-70 - | Permit Number: � ---| 2131330 ' | Suspension Approval: Completion Report ' � SuspendonDate: I/19/2014 ] Location Verified? � If Verified, How? ' | Other (specify incomments)Offshore? F-] VVeU Pressures (psi) � Tubin�g: U |A� U OA� 200 Subsequent Date AOG[[Notified: 7/31/2020 Operator: �H'|co/p North Slope, LL[ Operator Rep: Ehc0ckennan Wellbore Diagram Avail? Photos Taken? Fluid in Cellar? 8Py|nstaUed? VRP|ug(s)Installed? Ll Wellhead Condition Wellhead in good condition; all valves operational and fitted to install digital gauge to obtain Tubing and Annulus pressures. Noleaks and integrity onall flanges, and components good. SSV Removed � Condition ofCellar Some water in cellar well below casing valves no sheen or discoloration. No subsidence evident. ' Surrounding Surface Condition Barriers around wellhead and cellar. Surrounding ground and gravel good and clean nostains orsubsidence. ^ 11- [omments Location verified with Aerial Map Photo. ~ 3upenisor[ommen1s Photos (2)attached. ^ - — ����) �J r��- o( Zo/ 2kTZ�} Thursday, August 20, 2020 O N as a N O N ox O w � o U � U 73 P, oU o U sm. 0 M � d U O N U O O O N adaoo N O 00 O O N O N DATA SUBMITTAL COMPLIANCE REPORT 3/2/2017 Permit to Drill 2131330 Well Name/No. PRUDHOE BAY UNIT Z-70 Operator BP EXPLORATION (ALASKA) INC. API No. 50-029-23500-00-00 MD 14036 TVD 8983 Completion Date Completion Status SUSP Current Status SUSP UIC No REQUIRED INFORMATION , / Mud Log No " Samples No Directional Survey Yes DATA INFORMATION Types Electric or Other Logs Run: MWD / GR / RES, MWD / GR / RES / NEU / DEN, MWD / GR / RES / (data taken from Logs Portion of Master Well Data Maint) Well Log Information: Log/ Electr Data Digital Dataset Log Log Run Interval OH/ Type Med/Frmt Number Name Scale Media No Start StopReceived CH Comments ED C 23881 Digital Data 75 14036 2/3/2014 Electronic Data Set, Filename: Z-70 VISION Service Recorded Mode Composite Data.las ED C 23881 Digital Data 2/3/2014 Electronic File: ,7-70 ASP Final Survey.pdf ED C 23881 Digital Data 2/3/2014 Electronic File: Z-70 ASP Final Survey.xlsx ED C 23881 Digital Data 2/3/2014 Electronic File: -70 Final Surveys.csv ED C 23881 Digital Data 2/3/2014 Electronic File: Z-70 Final Surveys.txt- ED C 23881 Digital Data 2/3/2014 Electronic File: Z-70 VISION Service 2 Inch MD . C Recorded Mode Log.pdf ED C 23881 Digital Data 2/3/2014 Electronic File: L-70 VISION Service 2 Inch - 1P TVDSS Recorded Mode Log.pdf ED C 23881 Digital Data 2/3/2014 Electronic File: Z-70 VISION Service 5 Inch MD Recorded Mode, Log.pdf ED C 23881 Digital Data 2/3/2014 Electronic File: Z-70 VISION Service 5 Inch ,p TVDSS Recorded Mode Log.pdf Log C 23881 Log Header Scans 0 0 2131330 PRUDHOE BAY UNIT Z-70 LOG HEADERS Well Cores/Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments INFORMATION RECEIVED AOGCC Pagel of 2 Thursday, March 02, 2017 DATA SUBMITTAL COMPLIANCE REPORT 3/2/2017 Permit to Drill 2131330 Well Name/No. PRUDHOE BAY UNIT Z-70 Operator BP EXPLORATION (ALASKA) INC. API No. 50-029-23500-00-00 MD 14036 TVD 8983 Completion Date Completion Status SUSP Current Status SUSP UIC No Completion Report / Y )� Directional / Inclination Data Y Mud Logs, Image Files, Digital Data Y NA Core Chips Y (TV� Production Test InformationnYY /�fVA) Mechanical Integrity Test Information Y Composite Logs, Image, Data Files YY Core Photographs Y Z Geologic Markers/Tops 0 Daily Operations Summary Cuttings Samples Y NA Laboratory Analyses Y / COMPLIANCE HISTORY Completion Date: Release Date: 9/6/2013 Description Date Comments Comments: Compliance AOGCC Page 2 of 2 Thursday, March 02, 2017 STATE OF ALASKA Ab-,,; OIL AND GAS CONSERVATION COMMISo REPORT OF SUNDRY WELL OPERATIONS 1. Operations Abandon LJ Repair Well D Plug Perforations Perforate Other 11 Initial Suspended Performed: Alter Casing ❑ Pull Tubing❑ Stimulate - Frac ❑ Waiver ❑ Time Extension❑ Well Inspection Change Approved Program ❑ Operat. Shutdown[] Stimulate - Other ❑ Re-enter Suspended Well❑ Report 2. Operator 4. Well Class Before Work: 5. Permit to Drill Number: Name: BP Exploration (Alaska), Inc Develo mert p ❑ Stratigraphic❑ Ex Exploratory ry ❑ Service ❑ 213-133-0 3. Address: P.O. Box 196612 6. API Number: Anchorage, AK 99519-6612 50-029-23500-00-00 7. Property Designation (Lease Number): 8. Well Name and Number: ADL0028262 PBU Z-70 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pool(s): PRUDHOE BAY, PRUDHOE OIL 11. Present Well Condition Summary: Total Depth measured 14036 feet Plugs measured None feet true vertical 8982.42 feet Junk measured None feet MAY 2 9 2014 Effective Depth measured 10473 feet Packer measured None feet true vertical 8036.13 feet true vertical None feet AOG VC Casing Length Size MD TVD Burst Collapse Structural None None None None None None Conductor 80 20" 91.1 # A-53 45-125 45-125 0 0 Surface 3718 9-5/8" 40# L-80 45-3763 45-3137.89 5750 3090 Intermediate None None None None None None Production 11046 7" 26# L-80 45-11091 45-8603.94 7240 5410 Liner None None None None None None Perforation depth Measured depth None feet True Vertical depth None feet Tubing (size, grade, measured and true vertical depth) See Attachment See Attachment See Attachment Packers and SSSV (type, measured and true vertical depth) None None None Packer None None None SSSV 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: 0 0 0 o 0 Subsequent to operation: 0 0 0 0 0 14. Attachments: 15. Well Class after work: Copies of Logs and Surveys Run Exploratory❑ Development Service ❑ Stratigraphic ❑ Daily Report of Well Operations X 16. Well Status after work: Oil L Gas F1 WDSPLLJ GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑✓ SPLUCE] 17. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: N/A Contact Garry Catron Email Garry.Catron@BP.Com Printed Name Garry Catron Title PDC PE Signature Ci Phone 564-4424 Date 5/29/2014 Form 10-404 Revised 10/2012 RBCMS MAY 3 0 �ti\ Submit Original Only Casing / Tubing Attachment ADL0028262 Casing Length Size MD TVD Burst Collapse CONDUCTOR 80 20" 91.1# A-53 45 -1 125 45 - 125 PRODUCTION 11046 7" 26# L-80 45 - 1 11091 45 - 8603.94 7240 5410 SURFACE 3718 9-5/8" 40# L-80 45 - 3763 45 - 3137.89 5750 3090 TUBING 6 4-1/2" 12.6# 13Cr80 43 - 49 43 - 49 8430 7500 TUBING 4074 4-1/2" 12.6# L-80 49 - 4123 49 1 - 1-3379.961 8430 1 7500 Daily Report of Well Operations ADL0028262 1 5/15/2014 1 BPV/0/0 Suspended Well Inspection by Chuck Scheve Suspended Well Site Inspection Form Initial inspection Notify AOGCC Inspectors at least 10 days prior to inspection to allow witness Well Name: Prudhoe Bay Unit Z-70 Field/Pool: Prudhoe Bay/ Prudhoe Bay Permit # (PTD): 2131330 API Number: 500292350000 Operator: BP EXPLORATION (ALASKA) INC Date Suspended: 1/19/2014 Surface Location: Section: 19 Twsp: 11N Range: 12E Nearest active pad or road: W -pad Take to Location Digital camera Brief well history Latest Sundry or Completion report Past Site Visit documentation Pressure gauges, fittings, tools Map showing well location /Aerial photos Wellbore diagram showing downhole condition Site clearance documentation Sample containers for fluids on or near pad Condition of Surface Location AOGCC requires: 1) a description of the condition of the surface location, including discoloration, fluids or sheens visible on the ground or in any nearby water, 2) photographs showing the condition of the location surrounding the well General location condition: Good Pad or location surface: Good snow melt Location cleanup needed: None Pits condition: N/A Surrounding area condition: Good Water/fluids on pad: Snow melt Discoloration, Sheens on pad, pits or water: No sheen on pad or pits Samples taken: NO Access road condition: Good Photographs taken (# and description): None Condition of Wellhead AOGCC requires: 1) a description of the condition of the wellhead, 2) well pressure readings, where practicable, 3) photographs showing the wellhead condition Wellhead/tree/valve description, condition: FMC tree No SSV, tree valves are in good working order, no flowline Cellar description, condition, fluids: Snow melt Rat Hole: NO Wellhouse or protective barriers: No wellhouse concrete barricades Well identification sign: yes Tubing Pressure (or casing if no tubing): BPV in hole Annulus pressures: IA = 0 psi OA 0 psi Wellhead Photos taken (# and description): (9 total) (2) of front side of tree (2) back side of tree (1) BPV sign on master (1) cellar (1) front side of tree with barricades(1) Id sign (1) right side of tree Work Reauired: None Operator Rep (name and signature): Jack Disbrow N I_ AOGCC Inspector: Chuck Scheve Oth Observers: Inspection Date: 5/15/2014 AOGCC Notice Date: Time of arrival: 10:10 AM Time of Departure: Site access method: Truck 5/14/2014 10:25 AM I - ,. �-� �_� ;' SNF r♦ � � �� -•"Xi ria! j.� �' •� T iX� .... � - r_ ,. K ....... ray : r� �'�'--!. P - � _ ' •_ -- 9 m PA m AL All- . . . . . . ..... 1p" F " Tti%f �.. •ea r a hy��„'.r ,yam' SJR. LOCATI DRILUNG PE ■ O;A s LP r j� wow, ■ i O;A s LP r j� 5EltiYdSi- (}E) LOCAMN MW 1,4, r- 0 IUN RVE 2t3 -M 0 ' a Y , � '��1 11 Ei• OWNER OPERATOR API NUMBER SUR. LOCATION ,4RILLING PERMIT Prudhoe Bay Unit BP Exploration (Alaska) Inc. 50-029-23500-00-40 NW 1/14, Sec. 19 T11 N, R12E 213-133 ft mp TREE= WE.LHEAD = FMC GEM ACTUATOR= E_ECIiUC KhA- KB. B EV = 45.22 NffWL BF. ELEV = 57.88 KOP = 375' Max Angle = 103" @ 1247V Datum MD 11551' _= Datum TVD= _ 8800. SS Z-70 SUSPENDED �20- NSULATEDCOND, 91#, A-53 I—L 127' WELDED, D = 19.124' Minimum ID = 3.928" @ 43' TBG HGR (WELLHEAD) 9-5/8' CSG, 40#, L-80 BTC, D = 8.835' —3763- 4-1/7,12.6#, 763' 4-1/2',12.6#, L-80 NSCT, CONDITIONING 1-1_ 4123' KLLSTRNG TBG OF CEMENT PER VOLUMETRIC CALCS 1—{ —4901' 523' BALANCED CEMENT RUG I ^-10473' 15.8 PPG CLASS G CEMENT 7' CSG, 26 #, L-80 VAM TOP HC 11091' .0383 bpf. D = 6.276 KOMME IK1 SAFETI jTES: WELL ANGLE > 70' @ 11528'. BF ELEVATION IS FROM SEA LEVE. 514' 1--19-5/8- TAM PORT COLLAR 4123' 1--j 4-1/2" WLEG, D = 4.00- 10996' 1-47" HES EZSV CEMENT RETAINER 23 BBLS OF CMT SQZD BELOW EZSV 15.8 PPG CLASS GCMT DATE REV BY COAMBITS I DATE REV BY COMMENTS 01/19/14 P-273 INITIAL COMPLETION- SUSPENDED 01/20/14 JMD DRLG HO CORRECTIONS 01/23/14 FRJJIMU FINAL ODEAPPROVAL PRUDHOE BAY UNIT WELL: Z-70 PANT No: "2131330 AR No: 50-029-23500-00 SEC 19, T11N, R12E, 986' FNL & 219T FWL BP Exploration (Alaska) STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION Suspended Well Inspection Report Date Inspected: 05/15/14 Inspector: Chuck Scheve Well Name: Z-70 PTD No.: 2131330 Location Verified? No If Verified, How? Onshore / Offshore: Onshore Operator: BPX Oper. Rep: Kevin Parks Oper. Phone: 659-5766 Oper. Email: Suspension Date: 01/19/14 Date AOGCC Notified: 05/14/14 Sundry No.: 314-043 Type of Inspection: Initial Wellbore Diagram Avail.? Yes Well Pressures (psi): Tubing BPV installed Photos Taken? No IA 0 OA 0 ndition of :Ilhead: New No flow line or artificial lift line double manual valves and tree cap. Condition of Surrounding Surface Good Location: Follow Up Actions none Needed: EWED BY: Supry T PLB 09/2010 2014-0515_Suspend_PBU_Z-70_cs.xlsx STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION RECEIVED FEB 12 2014 WELL COMPLETION OR RECOMPLETION REPORT AND LW73QU 1 a. Well Status: ❑ Oil ❑ Gas ❑ SPLUG ❑ Other ❑ Abandoned ® Suspended 20AAC 25.105 20AAC 25 110 ❑ GINJ ❑ WINJ ❑ WAG ❑ WDSPL ❑ Other No. of Completions Zero 1 b. Well Class ❑ Exploratory ❑ Stratigraphic ® Development ❑ Service 2. Operator Name: BP Exploration (Alaska) Inc. 5. Date Comp., Susp., or Aband.: 1/19/2014 12. Permit to Drill Number: 213-133• • 314-043 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Date Spudded: 12/23/2013 13. API Number: 50-029-23500-00-00 4a. Location of Well (Governmental Section): Surface: 4294' FSL, 2757' FEL, Sec. 19, T11 N, R1 2E, UM • Top of Productive Horizon: 899' FSL, 3684' FEL, Sec. 13, T11 N, R11 E, UM Total Depth: 3163' FSL, 4990' FEL, Sec. 13, T11 N, R11 E, UM 7. Date T.D. Reached: 1/14/2014° 14. Well Name and Number: PBU Z-70 8. KB (ft above MSL): 103.1'- GL (ft above MSL): 56.2' 15. Field / Pool(s) Prudhoe Bay / Prudhoe Bay 9. Plug Back Depth (MD+TVD) 10473' • 8036' 4b. Location of Well (State Base Plane Coordinates, NAD. Surface: x- 599921 y- 5959100 • Zone- ASP4 TPI: x- 594016 y- 5960909 Zone- ASP4 Total Depth: x- 592680 Y- 5963156 Zone- ASP4 10. Total Depth (MD+TVD) 14036' ' - 8983' • 16. Property Designation: ADL 028262'& 028245 11. SSSV Depth (MD+TVD) None ° 17. Land Use Permit: 19. Water -depth, if offshore: N/A ft MSL 20. Thickness of Permafrost (TVD): 1799' 18. Directional Survey: ® Yes []No (Submit electronic and printed information per 20 AAC 25.050) 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071):Re-Drill/Lateral MWD / GR / RES, MWD / GR / RES / NEU / DEN, MWD / GR / RES / NEU / DEN 22. Top Window MD/TVD: N/A 23• CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT. PER FT. GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" 91# A-53 47' 127' 47' 127' 42" 260 sx Arctic Set (Approx.) 9-5/8" 40# L-80 45' 3763' 45' 3138' 12-1/4" 2105 sx LiteCrete 418 sx Class'G' 7" 26# L-80 45' 11091' 45' 8604' 8-3/4" 571 sx LiteCrete 182 sx Class'G' 4- 24. Open to production or injection? ❑ Yes ® No If Yes, list each interval open (MD+TVD of Top & Bottom; Perforation Size and Number): / 25. TUBING RECORD .SIZE DEPTH SET MD PACKER SET MD TVD) Kill String: 4-1/2", 12.6#, L-80 4123' None 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. WAS HYDRAULIC FRACTURING USED DURING COMPLETION?[] Yes ® No DEPTH INTERVAL (MD AMOUNT AND KIND OF MATERIAL USED 10996'- 14036' 3 Bbls Class'G' 10996' Set EZSV Cement Retainer 10473'- 10996' 0 Bbls Class'G' 2100' Freeze Protect w/ 71 Bbls Diesel 27. PRODUCTION TEST Date First Production Not on Production Method of Operation (Flowing, Gas Lift, etc N/A Date of Test Hours Tested Production For Test Period OIL -BBL: GAS -MCF: WATER -BBL: CHOKE SIZE: GAS -OIL RATIO: Flow Tubing Press. Casing Press: Calculated 24 -Hour Rate OIL -BBL: GAS -MCF: WATER -BBL: OIL GRAVITY -API (CORR): 28. CORE DATA Conventional Core(s) Acquired? ❑ Yes ® No Sidewall Core(s) Acquired? ❑ Yes ® No If Yes to either question, list formations and intervals cored (MD+TVD of top and bottom of each), and summarize Iithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory analytical results per 20 AAC 250.071. None A F,. .. Form 10-407 Revised 10/2012 CONTINUED ON REVERSE Submit Original Only 29. GEOLOGIC MARKERS (List all formations am kers encounter TVD 30. FORMATION TESTS Well Tested? J Yes ® No , If yes, list intervals and formations tested, briefly summarizing test NAME Permafrost Top 47' 47' Permafrost Base 1915' 1846' results. Attach separate sheets to this form, if needed, and submit detailed test information per 20 AAC 25.071. Ugnu 3815' 3173' Schrader Bluff N 5910' 4544' None Schrader Bluff O 6179' 4721' Base of Schrader Bluff 6720' 5067' HRZ 8822' 6522' Kalubik 9082' 6753' Kuparuk C 9168' 6831' LCU / Kuparuk B 9235' 6891' Kuparuk A 9282' 6934' Miluveach 9362' 7007' Kingak 10076' 7668' Sag River 11087' 8600' Shublik 11120' 8630' Eileen 11253' 8742' Ivishak / Zone 4 11308' 8782' Formation at Total Depth: Zone 4 11308' 8782' 31. List of Attachment Summary of Daily Drilling Reports, Well Schematic Diagram, LOT / FIT Summary, Cement Reports 32. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. Contact:Frank Roach564-4373 Email: Frank.Roach@bp.com , Title: Drilling Technologist Printed Name: Joe Lastu a - 564-4091 2-1 Signature:�(4k Phone Date:2I .� INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1a: Classification of Service Wells: Gas Injection, Water Injection, Water -Alternating -Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI (Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut -In, or Other (explain). Item 28: Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 10/2012 Submit Original Only WELLHEAD = FMC GEN5 ACTUATOR= ELECTRJC NITIAL KB. R EV = 45.22 INITIAL. BE- ELEV = 57.88 KOP = 375* Max Angle = 103- @ 1247V Datum MD = 11551' Datum ND =P 8800. SS I20" NSULATED COND, 91#, A-53 WELDED, U = 19,124' Minimum ID = 3.928" @ 43' TBG HGR (WELLHEAD) 19 -5/8 - CSG, 40#,L-80BTC, ID=8.835---E:3�763' 4-1/2',12-6#,L-80NSCT,CON U(MN14G 4123- KILLSTRING TBG ITOPOFCEMENTPER VOLUMETPJCCALLS 1--1 -4901' 523' BALANCED CEMENT PLUGI—J-10473- 15.8 PPG CLASS G CEMENT I 7'CSG, 26#,L-80VAMTOP HC 11091' -0383 bpf. ID = 6.276 SA tNOTES: WELL ANGLE> 70* @ 11528'. BF ELEVATION IS FROM SEA LEVEL 514- 1n9-5/8- TAM PORT COLLAR 4123* I-14-1/2" VVLEG, ID = 4,00" 10996- 1-4 7- HES EZSV CEMENT RETAINER 23 BBLS OFCMT SQZD BELOW EZSV 15.8 PPG CLASS G CMT NONE -am FRUDHOE BAY L"T WELL: Z-70 PERMIT No: 12131330 AR No: 50-029-23500-00 SEC 19, T1 1 N, R12F- 986'FNL & 219T FWL BP Exploration (Alaska) BP AMERICA LOT / FIT Summary Well Name: Z-70 Surface Leak Off Test Test Test Depth Test Depth AMW Pressure Pressure EMW Date Type (TMD-Ft) (TVD-Ft) (ppg) (psi) (BHP) (psi) (ppg) 01/01/14 LOT 3,762.00 3,158.92 9.00 1,065.00 2,541.90 15.49 Page 1 of 1 Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Page 1 of 30 Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3-0124W-C:DRILL (11,224,421.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code ! NPT NPT Depth Phase Description of Operations (hr) (usft) 12/20/2013 00:00 - 06:30 6.50 MOB P PRE BEGIN DON EVENT AT 00:00 ON 12/20/13 WITH PARKER 273 RIG GENERAL RIG DOWN ON Z-32: SECURE TOP DRIVE AND BRIDLE UP BLOCKS. SECURE IRON DERRICKMAN, FORUM CRANE AND STABBING BOARD. PERFORM DERRICK INSPECTION. - RIG DOWN RIG FLOOR EQUIPMENT AND MODULE CONNECTORS, MOVE ROOF WALKWAYS, 0630 0730 1.00 MOB P PRE MOVE CATTLE CHUTE AND SKID RIG FLOOR INTO RIG MOVE POSITION. 07:30 08:00 0.50 MOB P PRE LOWER MAST — — - WEIGHT PRIOR TO MAST STAND = 427 KLBS 08:00 11:00 3.00 MOB P PRE I DISCONNECT MODULE ELECTRICAL INTERCONNECTS. WARM UP MOVING — (SYSTEM. 11:00 - 12:00 1.00 MOB P PRE PULL MUD MODULE AWAY FROM DRILL MODULE. RIG MECHANICS REMOVE PALLET ELEVATOR FROM MODULE FOR MAINTENANCE 12:00 14:00 2.00 MOB P PRE PULL UTILITY MODULE AWAY FROM DRILL MODULE AND BACK DRILL MODULE OFF OF Z-32. _ 14:00 16:00 2.00 MOB P PRE CH2M HILL CRANE ON LOCATION TO REMOVE DUMMY WELLHOUSE FROM Z-32 AND SET OVER Z-70 CONDUCTOR. 16:00 0000 8.00 MOB P PRE i MOVE UTILITY MODULE FROM Z-32 TO Z-70 AND SPOT ON PAD. MOVE DRILL MODULE FROM Z-32 AND SPOT OVER WELL Z-70 WITH PRE-INSTALLED 20" CONDUCTOR SET AT 80' BELOW GROUND LEVEL. 12/21/2013 00:00 04:00 4.00 MOB P PRE MOVE MUD MODULE FROM Z-32 TO Z-70. MATE UP TO DRILL MODULE. 04 00 07 30 3.50 RIGU P PRE LEVEL MODULES AND RIG UP INTERCONNECTS. RAISE DRIVING CABS. LAYOUT ADDITIONAL DIVERTER LINE SEGMENTS. 07:30 08.00 0.50 RIGU P PRE RAISE MAST. - 522 KLBS PICKUP WEIGHT OFF DERRICK STAND. 08:00 10:00 2.00 RIGU P PRE SKID RIG FLOOR AND CATTLE CHUTE INTO DRILL POSITION. 10 00 19:30 9.50 RIGU P PRE BRDILE DOWN. RIG UP TOP DRIVE AND RIG FLOOR. - TOTCO ON LOCATION TO CHECK AND CALIBRATE PIT SENSORS/FLOW PADDLE CALIBRATE BLOCKS AFTER SLIPPING AND CUTTING DRILL LINE AT END OF LAST WELL. TAKE ON 8.6 PPG DRILPLEX SPUD MUD ACCEPT RIG AT 17:00 Printed 1/27/2014 12:47:57PM Common Well Name: Z-70 Event Type: DRL- ONSHORE (DON) Project: Prudhoe Bay Rig Name/No.: PARKER 273 Rig Contractor: PARKER DRILLING CO. Active datum: Z-70 ACTUAL @103.10usft (ab( North America - ALASKA - BP Operation Summary Report Start Date: 12/20/2013 End Date: 1/19/2014 Site: PB Z Pad Spud Date/Time: 12/23/2013 1:30:OOAM Mean Sea Le Page 2 of 30 AFE No X3 -0124W -C: DRILL (11,224,421.00) Rig Release: 1/19/2014 U WI: 500292350000 (hr) �)p Description of Operations Date From- To Hrs Task Code NPT NPT Depth Phase 19:30 00:00 4.50 BOPSUR P PRE NIPPLE UP HIGH PRESSURE RISERS AND 21-1/4" 2000 PSI HYDRIL DIVERTER.. HOLD PRESPUD MEETING WITH BOTH _ CREWS 12/22/2013 00:0008:0 8.00 BOPSUR P PRE NIPPLE UP DIVERTER STACK, HIGH PRESSURE RISERS, AND FLOW RISER. i DAMAGE WHILE HANDLING DIVERTER 12/23/2013 00:00 01:00 1.00 DRILL P SURF FINAL PREPARATIONS PRIOR TO SPUD. 01:00 01:30 0.50 DRILL P SURF FILL SYSTEM AND CHECK FOR LEAKS. CLEANOUT CONDUCTOR ICE FROM 57' MD TO BASE OF CONDUCTOR AT 126' MD. INS TALLTURNBUCKLES, RIG UP HYDRAULIC CONTROL LINES TO DIVERTER AND KNIFE VALVE. ENERGIZE ACCUMULATOR. SIMOPS: LOAD BHA COMPONENTS INTO PIPE BARN AND TO RIG FLOOR. 08 00 11:00 3.00 RIGU P PRE PICKUP AND RACK BACK 5" AND 4" HWDP STANDS. 11:00 12:00 1.00 RIGU P PRE HOLD DIVERTER (D3) DRILL WITH RIG EVACUATION FOR H2S + AAR WITH RIG TEAM (HUNDLEY CREW) 12:00 13:00 1.00 RIGU P PRE HOLD DIVERTER (D3) DRILL WITH RIG EVACUATION FOR H2S + AAR WITH RIG TEAM (BUCKLER CREW) RIG UP ESD TO Z40 (UNDER OVERHANG OF UD MODULE) AND FUNTION TEST WITH PAD OPERATOR (PASS)_ 13:00 15:00 2.00 RIGU P PRE ! PICKUP AND RACK BACK 5" AND 4" HWDP ! STANDS. 15:00 -� _ 16:00 1.00 BOPSUR P PRE FUNCTION TEST DIVERTER. PERFORM ACCUMULATOR DRAWDOWN TEST (SEE ATTACHED FORM) KNIFE VALVE OPENS IN 27 SEC, DIVERTER CLOSES IN 37 SEC. AOGCC REPRESENTATIVE CHUCK SCHEVE WAIVES WITNESS TO TEST 16:00 19:00 3.00 DRILL P SURF MAKEUP AND RUN IN HOLE WITH 12-1/4" DRILLING ASSEMBLY FROM SURFACE TO TAG ICE IN CONDUCTOR AT 57' MD. - 12-1/4" NEW HUGHES VM -3 MILL TOOTH - SLB POWERPAKA962SP PDM (1.83° BEND) W/ NON -PORTED FLOAT, UBHO SUB 19:00 20:00 1.00 DRILL P SURF RIG UP SPERRY E -LINE UNITAND LOAD GYRODATATO_OLS TO RIG FLOOR. 20:00 00:00 4.00 BOPSUR N WAIT 127.50 SURF COMPLETE NIPPLE UP OF DIVERTER OUTLET LINE. DROPPED OBJECT AND PROPERTY i DAMAGE WHILE HANDLING DIVERTER 12/23/2013 00:00 01:00 1.00 DRILL P SURF FINAL PREPARATIONS PRIOR TO SPUD. 01:00 01:30 0.50 DRILL P SURF FILL SYSTEM AND CHECK FOR LEAKS. CLEANOUT CONDUCTOR ICE FROM 57' MD TO BASE OF CONDUCTOR AT 126' MD. North America - ALASKA - BP Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00 ) Page 3 of 30 Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWL 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations - (hr) - (usft) - - 01:30 - 18:00 16.50 DRILL P SURF I SPUD Z-70 AT 01:30 ON 12/23/13. ' DIRECTIONAL DRILL 12-1/4" SURFACE HOLE FROM 12T MD TO 801' MD (674' IN 16.5 HOURS = 41 FPH WITH CONNECTIONS. 500 GPM, 600-700 PSI ON, 500-600 OFF, 40 RPM, 2-5 KFT-LBS TORQUE ON BOTTOM, 1 I KFT-LBS OFF, 5-15 KLBS WOB - INSTANTANEOUS ROTATING ROP = 100-150 FPH, SLIDING= 50-75, GYRO SURVEY EVERY STAND WIPE HOLE 30 FT PRIOR TO CONNECTIONS, FULL PUMP RATE UP, PUMPS OFF DOWN MW IN/OUT = 8.7 PPG NORMAL GRAVEL IN SHALLOW RETURNS, TRANSITIONING TO GRAVEL/CLAY CUTTINGS TOWARDS END OF INTERVAL. OCCASIONAL WOOD IN RETURNS. ACTUAL DRILL TIME = 7.11 HRS, ART = 4.25 HRS, AST = 2.86 HRS 18:00 18:30 0.50 DRILL P SURF CIRCULATE HOLE CLEAN WITH ONE 1 BOTTOMS UP WHILE PULLING OUT OF THE HOLE WITH 2 STANDS FROM 802' MD TO 612' MD. FLOWCHECK WELL PRIOR TO PULLING OFF BOTTOM (STATIC) - 30 FPM, 500 GPM, 675 PSI, 18:30 19:00 0.50 r DRILL P SURF TULL OUT OF HOLE WITH 12-1/4" DRILLING ASSEMBLY FROM 612' MD TO BHAAT 423' MD. NO ISSUES TRIPPING THROUGH OPENHOLE _ INITIAL PICKUP WEIGHT -= 57 KLBS. T- SURF RACK BACK 12-1/4" DRILLING ASSEMBLY. 19:00 21:00 T 2.00 ILL 'GRADE VM -3 BIT 1 -1 -IN GAUGE. 21:00 - 00:00 3.00 DRILL P SURF MAKEUP AND RUN IN HOLE WITH BHA#2 (12-1/4" DRILLING ASSEMBLY) FROM SURFACE TO 200' MD AT MIDNIGHT. MWD TOOLS WITH UBHO SUB 12/24/2013 00:00 - 00:30 i 0.50 DRILL P 00:30 - 01:00 0.50 DRILL P Printed 1/27/2014 12.47.57PM - SAME 12-1/4" VM -3 MILL TOOTH BIT AT BHA #1 SURF MAKEUP AND RUN IN HOLE WITH 12-1/4" DRILLING ASSEMBLY FROM 200' MD AT MIDNIGHT TO BHA OVERAL LENGTH AT 667' MID SURF TRIP IN HOLE WITH 12-1/4" DRILLING ASSEMBLY FROM BHA AT 66T MD TO PREVIOUSLY DRILLED DEPTH OF 801' MD. NO ISSUES TRIPPING THROUGH OPENHOLE. NO FILL TAGGED ON BOTTOM. North America - ALASKA - BP Page 4 of 30 Operation Summary Report Common Well Name: Z-70 11 HRS = 33 FPH WITH CONNECTIONS) AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00 ) Project: Prudhoe Bay Site: PB Z Pad KFT-LBS TORQUE OF, 15-25 KLBS WOB Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. FPH, SLIDING = 50-100 FPH UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) SLIDE -2/3 EACH STAND FOR DIRECTIONAL Date From - To HrsTask Code NPT NPT Depth Phase Description of Operations WIPE HOLE 30 FT PRIOR TO CONNECTIONS, 1 _- (hr) - DRILL P (usft) - SURF I DIRECTIONAL DRILL 12-1/4" SURFACE HOLE 101:00 - 12:00 11.00 12.00 - 00:00 12.00 12/25/2013 00:00 - 01:30 1.50 DRILL DRILL 01.30 03:30 2.00 DRILL 03:30 04:30 1.00 DRILL 04:30 - 05.00 0.50 DRILL Printed 1/27/2014 12:47:57PM FROM 801' MD TO 1160' MD AT NOON (359' IN 11 HRS = 33 FPH WITH CONNECTIONS) - 550 GPM, 1000-1250 PSI ON, 750-1000 PSI OFF, 40 RPM, 3-5 KFT-LBS TORQUE ON, 1-3 KFT-LBS TORQUE OF, 15-25 KLBS WOB INSTANTANEOUS ROTATING ROP = 75-100 FPH, SLIDING = 50-100 FPH SLIDE -2/3 EACH STAND FOR DIRECTIONAL WORK CLEAN MWD SURVEYS BEGIN AT 755' MD WIPE HOLE 30 FT PRIOR TO CONNECTIONS, FULL PUMP RATE UP, PUMPS OFF DOWN MW IN/OUT = 8.8 PPG, NO LOSSES CLAYAND SAND IN RETURNS AT SHAKERS P SURFDIRECTIONAL DRILL 12-1/4" SURFACE HOLE IN SV6 FORMATION FROM 11 60'MD AT NOON TO 1755' MD AT MIDNIGHT (656' IN 12 HRS = 55 FPH WITH CONNECTIONS). 550 GPM, 1250-1350 PSI ON, 1000-1100 PSI OFF, 40 RPM, 4-6 KFT-LBS TORQUE ON, 2-3 KFT-LBS TORQUE OFF, 20-30 KLBS WOB INSTANTANEOUS ROTATING ROP = 125-150 FPH, SLIDING = 50-100 FPH - SLIDE -2/3 EACH STAND FOR DIRECTIONAL WORK - WIPE HOLE 10 FT PRIOR TO CONNECTIONS, FULL PUMP RATE UP, PUMPS OFF DOWN MW IN/OUT = 8.8 PPG, NO LOSSES CLAY, SAND AND COAL IN RETURNS AT SHAKERS ACTUAL DRILLING TIME DURING PAST 24 HOURS = 14.04 HRS, ROTATING = 12.12 HRS, SLIDING = 1.92 HRS i P SURF DIRECTIONAL DRILL 12-1/4" SURFACE HOLE FROM 1755' MD AT MIDNIGHT TO 1828' MD (73' IN 1.5 HRS = 49 FPH WITH CONNECTIONS). DECISION TO PERFORM WIPER TRIP -80' ABOVE PROJECTED BASE OF PERMAFROST. 550 GPM, 1250-1350 PSI ON, 1000-1100 PSI OFF, 40 RPM, 4-6 KFT-LBS TORQUE ON, 2-3 KFT-LBS TORQUE OFF, 20-30 KLBS WOB INSTANTANEOUS ROTATING ROP = 75-100 FPH, SLIDING = 50-100 FPH MW IN/OUT = 8.8 PPG, NO LOSSES RIG DOWN AND RELEASE GYRO AT 1828' MD. P SURF CIRCULATE HOLE CLEAN WITH 3 BOTTOMS UP WHILE BACKREAMING FIRST 3 STANDS OFF BOTTOM FROM 1828' MD TO 1606' MD. 550 GPM, 1100-1200 PSI, 60 RPM, 3-4 KFT-LBS TORQUE FLOWCHECK WELL PRIOR TO PULLING OFF — BOTTOM (STATIC) P SURF PULL OUT OF HOLE WITH 12-1/4" DRILLING ASSEMBLY FROM 1606' MD TO TOP OF 5" HWDP IN BHA AT 665' MD. INITIAL PICKUP WEIGHT 100 KLBS NO HOLE ISSUES WHILE TRIPPING. P SURF RIG DOWN HALLIBURTON ELINE AND BREAKDOWN GYRODATA TOOLS. SERVICE AND LUBRICATE RIG. Common Well Name: Z-70 Event Type: DRL- ONSHORE (DON) Project: Prudhoe Bay Rig Name/No.: PARKER 273 Rig Contractor: PARKER DRILLING CO. Active datum: Z-70 ACTUAL @103.10usft (above Date From - To Hrs (hr)- . 05:00 - 06:30 1.50 North America - ALASKA - BP Page 5 of 30 Operation Summary Report Start Date: 12/20/2013 End Date: 1/19/2014 Site: PB Z Pad Spud Date/Time: 12/23/2013 1:30:OOAM Mean Sea L Task DRILL 06.30 - 1530 9.00 DRILL 15:30 17:00 1.50 DRILL 17:00 00:00 7.00 DRILL Code NPT ! NPT Depth Phase P (usft) SURF P SURF N SFAL 2,457.50 SURF P SURF AFE No X3 -0124W -C: DRILL (11,224,421.00) Rig Release: 1/19/2014 U WI: 500292350000 Description of Operations RUN IN HOLE WITH 12-1/4" DRILLING ASSEMBLY FROM BHAAT 665' MD TO PREVIOUSLY DRILLED DEPTH OF 1828' MD NO HOLE ISSUES TRIPPING IN. NO FILL TAGGED ON BOTTOM.____ _ DIRECTIONAL DRILL 12-1/4" SURFACE HOLE FROM 1828' MD TO 2456' MD (628' IN 9 HRS = 70 FPH WITH CONNECTIONS). - 650 GPM, 1950-2100 PSI ON, 1750-1850 PSI OFF, 40 RPM, 6-8 KFT-LBS TORQUE ON, 4-5 KFT-LBS TORQUE OFF, 20-30 KLBS WOB - INSTANTANEOUS ROTATING ROP = 150-300 FPH, SLIDING = 125-200 FPH MW IN/OUT = 8.9 PPG, NO LOSSES BACKREAM UP 30', DOWN WITH NO PUMPS EACH CONNECTION - SURVEY EVERY STAND CIRCULATE TO CONDITION MUD. UNABLE TO PUMP DUE TO THICKNESS DIRECTIONAL DRILL 12-1/4" SURFACE HOLE FROM 2456' MD TO 3023' MD AT MIDNIGHT (567' IN 7 HRS = 81 FPH WITH CONNECTIONS). - 650 GPM, 2150-2250 PSI ON, 2000-2100 PSI OFF, 40 RPM, 6-8 KFT-LBS TORQUE ON, 4-5 KFT-LBS TORQUE OFF, 20-30 KLBS WOB - INSTANTANEOUS ROTATING ROP = 150-200 FPH, SLIDING = 75-100 FPH MW IN/OUT = 8.9 PPG, NO LOSSES BACKREAM UP 30', DOWN WITH NO PUMPS EACH CONNECTION -SURVEY EVERY STAND MINOR HYDRATES OBSERVED AT TOP OF SV3 (2576'M D) AND SV1 (3352' MD) 12/26/2013 00:00 08:00 8.00 DRILL P T SURF DIRECTIONAL DRILL 12-1/4" SURFACE HOLE FROM 3023' MD TO 3770' MD TO (3096 TVD) 650 GPM, 2550-2700 PSI ON, 2400-2500 PSI OFF - 40 RPM, 5-7 KFT-LBS TORQUE ON, KFT-LBS TORQUE OFF, 25-30 KLBS WOB SURVEY EVERY 90 FT BACKREAM HOLE 30 FT PRIOR TO CONNECTIONS, FULL PUMP RATE UP, PUMPS OFF DOWN MW IN/OUT = 9 PPG, NO LOSSES FLOW LINE TEMPERATURE 94 DEGREES MONITOR WELL 10 MIN= STATIC 08:00 10:00 2.00 DRILL P SURF CIRCULATE BOTTOMS UP 3X F/3770'MD TO 3430' MD 650 GPM/159GPM 1450 PSI 110 RPM, 5K TORQ STAND BACKA STAND EVERY 20 MIN 11 Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Page 6 of 30 Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 10:00 18:00 8.00 DRILL P SURF MONITOR WELL FOR 10 MINUTES: STATIC MUD WEIGHT 9.2 PPG IN, 9.2 PPG OUT ATTEMPT TO PULL ON ELEVATORS BUT HOLE NOT TAKING PROPER DISPLACEMENT - ATTEMPT TO PUMP OUT AT 2 BPM BUT ENCOUNTERED TIGHT HOLE - BACKREAM OUT OF HOLE FROM 3430' MD TO 3029' MD 650 GPM, 1450 PSI AT 3430' MD 60 RPM, 5K TORQUE, 90K ROTATING WEIGHT - BACKREAMING SPEEDS FROM 40 FT/MIN - 50 FT/MIN - PACK OFF AND TIGHT @ 2840 TO 2750, TIGHT @ 2570 TO 2590, TIGHT @ 2055 TO 2035, PACK OFF @ 1940 TO 1930 18:00 18:30 0.50 DRILL P SURF CIRCULATE BOTTOMS UP AT 1220' 30 SPM, 150 GPM, 1100 PSI 18:30 23:00 4.50 DRILL P SURF RUN IN HOLE FROM 1137'MD TO 3770'MD ON ELEVATORS FILL PIPE AT 15 STANDS IN AVERAGE 5 - 10K DRAG 23:00 00:00 1.00 DRILL P SURF CIRCULATE BOTTOMS UP WHILE PULLING OUT OF THE HOLE FROM 3770'MD TO 3600'MD. 142 SPM, 600 GPM, 2484 PSI, 70 RPM PICK UP - 127K, SLACK OFF - 87K, ROTATING WT. - 100K BLEND IN 580 BBLS OF NEW MUD TO REDUCE FLOW LINE TEMPERATURE 12/27/2013 00:00 03:00 3.00 DRILL P SURF CIRCULATE BOTTOMS -UP 3 TIMES WHILE BACK REAMING OUT OF HOLE 550 GPM, 1800PSI 40 RPM, 6 TORQUE CONTINUE TO BLEND IN NEW MUD 03:00 08:30 5.50 DRILL N FLUD 3,770.00 SURF CONTINUE TO CIRC AND CONDITION MUD AFTER ACHIEVING 3 BOTTOMS UP TO REDUCE YP AND LSYP - FLOW LINE TEMPERATURE 72 DEGREES 08:30 10:00 1.50 DRILL N FLUID 3,770.00 SURF RIH FROM 2,600' MD TO 3770' MD TO ON ELEVATORS 10:00 12:00 2.00 DRILL N FLUID 3,770.00 SURF CIRCULATE AND CONDITION MUD ON BOTTOM TO REDUCE YP AND LSYP 550 GPM, 1830 PSI 60 RPM, 6K TORQUE POH 3 FT /MIN RACKING BACKA STAND EVERY 30 MIN, F/ 3770' MD TO 2503, MD 12:00 18:00 6.00 DRILL P SURF FLOW CHECK WELL 10 MIN = STATIC - POH WITH F/ 3500' MD TO 665' MD, ATTEMPT TO POH ON ELEVATORS HOLE SWABBING PUMP 2BBLS/ MIN 350 PSI 18:00 20:00 2.00 DRILL P SURF FLOW CHECK WELL @ BHA 10 MIN = STATIC - POH WITH 5" HWDP STAND BACK IN DERRICK F/ 665' MD TO 200' MD MAD PASS F/ 900 TO SURFACE @ 12 FPM 20:00 23:00 3.00 DRILL P SURF PJSM, LAY/DN BHA F/200' MD 23:00 00:00 1.00 DRILL P SURF CLEAR AND CLEAN RIG FLOOR 12/28/2013 00:00 01:00 1.00 DRILL P SURF CLEAN AND CLEAR OF BHA EQUIPMENT Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Page 7 of 30 1 Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3-0124W-C:DRILL (11,224,421.00) Project: Prudhoe Bay Site: PB Z Pad 07:00 Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) 23:00 Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 01:00 - 01:30 0.50 CASING P SURF PJSM RIG UP TO RUN 9 5/8 CASING REMOVE 01:30 07:00 5.50 CASING N HMAN 3,771.50 07:00 12:00 5.00 CASING P 12:00 23:00 11.00 CASING P 23:00 - 00:00 1.00 CASING P 12/29/2013 0000 - 05:30 5.50 CASING P 05:30 - 06:00 0.50 CASING P BX ELEVATORS AND LINKS, RIG UP LONG LINKS SURF SAFETY STAND DOWN DUE TO ACCIDENT ON RIG FLOOR SURF PJSM, R/U TO RUN 9 5/8 CASING W/ VOLANT TOOL SURF P/U, M/U SHOE TRACK RUN 9 5/8", 40#, L-80, 0' MD CASING TO 2294' MD CHECK FLOATS USE BEST 0 LIFE PIPE DOPE TORQUE CONNECTIONS TO 10000 FT -LBS RUN 25 FLOATING CENTRALIZERS ON JOINTS 1 - 25 - RUN IN HOLE AT 60 FT/MIN FROM O' MD TO 2294' FT MD, - BREAK CIRCULATION EVERY -415 FT AT 2.5 BPM FOR 2 MINUTES FILL CASING EVERY 10 JOINTS OBTAIN PU/SO WEIGHTS EVERY -415 FT PU 127K, SO 88K MUD WEIGHT: 9.2 PPG IN, 9.2 PPG OUT MUD LOSSES WHILE RIH: 2 BBLS SURF CIRCULATE SURFACE TO SURFACE VOLUME 4BPM, 180 PSI P/U 118K, S/O 90K RECIPROCATE PIPE @ 10 FPM MUD LOSSES WHILE CIRC 25 BBLS SURF RUN 9 5/8", 40#, L-80, 2294' MD CASING TO 3713' MD USE BEST O LIFE PIPE DOPE TORQUE CONNECTIONS TO 10000 FT -LBS RUN IN HOLE AT 60 FT/MIN FROM 2294' MD TO 3713' FT MD, - BREAK CIRCULATION EVERY -415 FT AT 2.5 BPM FOR 2 MINUTES FILL CASING EVERY 10 JOINTS OBTAIN PU/SO WEIGHTS EVERY -415 FT PU 127K, SO 88K MUD WEIGHT: 9.2 PPG IN, 9.2 PPG OUT MUD LOSSES WHILE RIH: 10 BBLS SURF P/U, M/U HANGER AND LANDING JOINT, RUN IN HOLE AND LAND @ 3762' MD North America - ALASKA - BP Operation Summary Report Common Well Name: Z-70 Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Daterrime: 12/23/2013 Rig Contractor: PARKER DRILLING CO. Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT hr 06:00 - 08:00 2.00 ~CASING P 08:00 16:00 8.00 CEMT P i Printed 1/27/2014 12:47:57PM Page 8 of 30 AFE No End Date: 1/19/2014 X3-0124W-C:DRILL (11,224,421.00 ) 1:30:OOAM Rig Release: 1/19/2014 UWI: 500292350000 NPT Depth Phase Description of Operations (usft) SURF STAGE UP TO CEMENTING RATE IN 1 BPM INCREMENTS TO FINAL CIRCULATING RATE OF 7 BPM. @ 2 BPM, 175 PSI, 100% RETURN FLOW @ 3 BPM, 190 PSI, 100% RETURN FLOW @ 4 BPM, 200 PSI, 100% RETURN FLOW @ 5 BPM, 210 PSI, 100% RETURN FLOW @ 6 BPM, 215 PSI, 100% RETURN FLOW @ 7 BPM, 225 PSI, 100% RETURN FLOW @ 10 BPM, 225 PSI, 100% RETURN FLOW CONDITION MUD TO 9.1 PPG, 21 PV, 19 YP - INITIAL PRESSURE AT CEMENTING RATE: 210 PSI - FINAL PRESSURE AT CEMENTING RATE !AFTER HOLE CONDITIONED: 190 PSI CIRCULATE TOTAL OF 7 TIMES BOTTOMS -UP - RECIPROCATED PIPE 20 FT AT SURFACE AT 12 FT/MIN 1 -MUD LOSSES: 0 BBL SURF CEMENT 9 5/8" INTERMEDIATE CASING AS FOLLOWS: FILL LINES WITH WATER AND PRESSURE TEST TO 4000 PSI FOR 5 MINUTES I- PUMP 100 BBLS OF 10.0 PPG MUDPUSH II SPACER @ 5 BPM, 136PSI RELEASE BOTTOM PLUG PUMP 716.2 BBLS (2075 SACKS) OF 11.0 PPG LITECRETE LEAD CEMENT @ 5 BPM, EXCESS VOLUME 500% (YIELD 1.91 CU.FT/SK) MUD PUSTRACK TO SURFACE 475 BBLS PUMP 87.1 BBLS (441 SACKS) OF 15.8 PPG- ) CLASS G TAIL @ 5 BPM, EXCESS VOLUME 40% (YIELD 1.17 CU.FT/SK) - SIDE WALK CEM N� T TO SURFACE AFTER 24 BBLS OF TAIL PUMPED. DROP TOP PLUG RECIPROCATED PIPE 20 FT AT SURFACE WHILE PUMPING CEMENT AT 5 BPM PERFORM DISPLACEMENT WITH RIG PUMPS AND 9.1 PPG DRILPLEX MUD PER SLB CADE - 15 BBLS DISPLACED AT 10 BPM: ICP 400 PSI 100% RETURN FLOW, FCP 400 PSI 100% I RETURN FLOW - 235 BBLS DISPLACED AT 6 BPM: ICP 285 PSI 100% RETURN FLOW, FCP 860 PSI 100% RETURN FLOW - REDUCE RATE TO 2 BPM PRIOR TO PLUG BUMP: FINAL CIRCULATING PRESSURE 700 PSI - BUMP PLUG AND INCREASE PRESSURE TO 1200 PSI, CHECK FLOATS -GOOD TAL DISPLACEMENT VOLUME 265.4 BBLS (MEASURED BY STROKES @ 96% PUMP EFFICIENCY) RECIPROCATE PIPE 20 FT AT SURFACE DURING DISPLACEMENT, RECIPROCATION STOPPED WHEN 517 BBLS LEAD AWAY. 341 BBLS CEMENT TO SURFACE TOTAL LOSSES FROM CEMENT EXIT SHOE TO CEMENT IN PLACE: 0 BBLS CIP 15:25 HRS Printed 1/27/2014 12,47:57PM North America -ALASKA - BP Page 9 of 30 Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00 ) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 16:00 - 20:00 4.00 CASING P SURF UD LANDING JOINT, REMOVE BAIL EXT, REMOVE PS -21 SLIPS, RINSE FLOW BOX, INSTALL ROTARY MASTER BUSHING, RIG DOWN VOLANT TOOL, RIG DN LONG BAILS, RIG UP SHORT BAILS 2000 22:00 2.00 CASING P SURF FLUSH STACK W/BLACK WATER PILLAND DRAIN STACK 22:00 23:30 1.50 CASING N HMAN 3,770.00 SURF SAFETY STAND DOWN WITH CREW COMING ON SHIFT FROM DAYS OFF, DISCUSSED RECENT INCIDENTS AND WSP WORK. 23:30 0000 0.50 CASING P SURF NIPPLE DN DIVERTER ASSEMBLY AND DIVERTER LINE 12/30/2013 00:00 12:00 12.00 BOPSUR P SURF DRAIN STACK, NIPPLE DN DIVERTER LINE, NIPPLE DN DIVERTER STACK, AND STAGE BEHIND WELL HOUSE BLOW DN TD AND HOLE FILL LINES, EMPTY AND CLEAN PITS, LOAD 480 BBLS OF 9.0 LSND MUD, BREAK DN AND CLEAN OUT CEMENT MANIFOLD 12:00 00:00 12.00 BOPSUR P SURF NIPPLE UP WELL HEAD, INSTALL DSA, CHANGE OUT SPOOL ON RISER AND NIPPLE UP, TEST WELL HEAD SEAL TO 1000 PSI FOR 5 MIN, NIPPLE UP BOP, INSTALL SECONDARY I/AAND O/A VALVES 12/31/2013 00:00 - 04:00 4.00 BOPSUR P SURF CONTINUE NIPPLE UP BOP, ALIGN STACK TO WELL BORE CHANGE OUT 16" AIR BOOTS DRAIN DIESEL OUT OF TEST PUMP RIG UP TEST EQUIPMENT OBTAIN RKB'S 04:00 06:00 2.00 BOPSUR P SURF P/U AND M/U TEST JT ASSY, RIH WITH TEST JT ASSY, ATTEMPT TO SET TEST PLUG, TEST PLUG FAILED TO SET ON DEPTH DUE TO ICE BUILD UP IN WELL HEAD 06:00 06:30 0.50 BOPSUR N DPRB 3,771.50 SURF STEAM AND THAW WELL HEAD 06:30 08:00 1.50 BOPSUR P SURF RIH WITH TEST JT ASSY, TEST PLUG SET ON DEPTH - FILL AND PURGE AIR FROM THE STACK, KILL LINE, CHOKE LINE, CHOKE MANIFOLD, AND MGS 08:00 10:30 2.50 BOPSUR P SURF PERFORM KOOMEY DRAWDOWN TEST TEST BOPE TO 250 PSI LOW, 3500 PSI HIGH FOR 5 MINUTES EACH - TEST WITH 4" TEST JOINT -ALL TESTS CHARTED, SEE ATTACHED BOP TEST CHARTS -TEST WITNESS WAIVED BYAOGCC REP ROBERT NOBLE TEST PUMP REGULATOR WASHED OUT 1030 11:30 1.00 BOPSUR N SFAL 3,771.50 SURF REBUILD REGULATOR AND BLEEDER VALVE ON TEST PUMP 11:30 14:00 2.50 BOPSUR P SURF TEST BOPE TO 250 PSI LOW, 3500 PSI HIGH FOR 5 MINUTES EACH - TEST WITH 4" TEST JOINT -ALL TESTS CHARTED, SEE ATTACHED BOP TEST CHARTS 14:00 15:30 1.50 BOPSUR P SURF PULL TEST PLUG, INSTALL WEAR BUSHING, RUN IN 4 LDS, BREAK DOWN AND UD TEST JT ASSY. - WEAR BUSHING ID = 9.75" Printed 1/27/2014 12,47:57PM Common Well Name: Z-70 Event Type: DRL- ONSHORE (DON) North America - ALASKA - BP Operation Summary Report Start Date: 12/20/2013 End Date: 1/19/2014 AFE No X3 -0124W -C: DRILL (11,224,421.00 ) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Page 10 of 30 Date From - To Hrs Task Code NPT NPT Depth ' Phase Description of Operations (hr) (usft)I 15.30 18:00 2.50 BOPSUR _ P SURF PRESSURE TEST 9 5/8" SURFACE CASING TO 250 PSI LOW FOR 5 MIN / 3500 PSI HIGH FOR 30 MIN - TEST BY BP WiL RICH _ URNETTPROVED BURNETT 18:00 18:30 0.50 BOPSUR P SURF TEST SUPER CHOKE AND MANUAL CHOKE TO 1500 PSI FOR 5 MIN ON CHART 18:30 21:00 2.50 CASING P SURF INSTALL BAILS AND BX ELEVATORS, CHANGE SLIP SEGMENTS IN PS -21 HYD SLIPS 21:00 00:00 3.00 CASING P SURF HOLD PJSM WITH RIG CREW, PICK UP 8.75" INTERMEDIATE BHA FROM SURFACE TO 101' _ LMD 1/1/2014 00:00 03:00 3.00 CASING P SURF PICK UP 8.75" INTERMEDIATE BHA FROM 101' I MD TO 959' MD C/O PS -21 INSERTS TO 4" 03:00 04:301.50 CASING P SURF RIH WITH 8.75" INTERMEDIATE BHA ON 4" DP OUT OF DERRICK FROM 959' MD TO 1433' MD - SHALLOW TEST DIRECTIONAL TOOLS = 'GOOD 04:30 06:30 2.00 CASING P SURF RIH ON ELEVATORS WITH 4" OP SINGLES FROM 1433' MD TO 3431' MD - BREAK CIRCULATION STAGE PUMPS UP TO 400 GPM, 1475 PSI, 40 RPM, 7K TO - PU 135K, SO 80K, RT WT 99K 343V - OBTAIN SPR'S @ M MD__ 06:30 07:30 1.00 T CASING P r SURF j _ ', WASH DOWN FROM 3431' MD TAG FLOAT COLLAR AT 3672' MD - 400 GPM, 1575 PSI - 07:30 09:00 1.50 DRILL - --- - P j SURF - DRILL FLOAT COLLAR AND CEMENT FROM 3672' MD TO 3758' MD 09:00 - 1200 3.00 CASING _ P Y SURF 400 GPM, 1575 PSI, 20 RPM, 8K TQ CIRCULATE BOTTOMS UP AND DISPLACE WELL TO 9.0 PPG LSND MUD - ROTATE AND RECIPROCATE PIPE DURING DISPLACEMENT 400 GPM, 1530 PSI, 20 RPM, 8K TQ OBTAIN SPR @ 3758' MD 12:00 - 13:00 1.00 DRILL P SURF DRILL CEMENT, FLOAT SHOE AND 20' OF NEW FORMATION FROM 3758' MD TO 3790' MD 400 GPM, 1000 PSI, 30 RPM, 9K TQ 13:00 - 14:00 1.00 DRILL P SURF FLOW CHECK WELL FOR 10 MIN = STATIC, RIG UP AND PERFORM LOT MUD WEIGHT: 9.0 PPG, 3742' TVD, 3762' MD PUMP 4 BBLS TO 1065 PSI, BLEED BACK 3.2 BBLS LOT EMW = 15.5 PPG - TEST APPROVED BY DRILLING ENGINEER FRANK ROACH 114:00 00:00 10.00 DRILL P INTI DRILL 8.75" INTERMEDIATE HOLE FROM 3790' MD TO 4760' MD 600 GPM, 2230 PSI ON, 2180 PSI OFF - 80 RPM, 7K TORQUE ON, 6K TORQUE OFF - PU 134K, SO 95K, ROT 107K ECD: CALCULATED = 9.5, ACTUAL= 9.8 PPG SURVEY EVERY -90 FT - BACKREAM 90 FT PRIOR TO CONNECTIONS MUD WEIGHT: 9.0 PPG IN, 9.0 PPG OUT PUMP SWEEPS EVERY 500'= NO INCREASE IN CUTTINGS AT SHAKERS Printed 1/27/2014 12:47:57PM —1 North America - ALASKA - BP Page 11 of 30 Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3-0124W-C:DRILL (11,224,421.00 ) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) - - -- DRILL P (usft) INTI DRILL 8.75" INTERMEDIATE HOLE FROM 4760' ---- 1/2/2014 00:00 - 05:30 5.50 MD TO 5234' MD (4118' TVD) 600 GPM, 2535 PSI ON, 2315 PSI OFF 80 RPM, SK TORQUE ON, 5K TORQUE OFF - PU 137K, SO 101 K, ROT 112K ECD: CALCULATE = 9.6, ACTUAL= 10.0 PPG SURVEY EVERY -90 FT I- BACKREAM 90 FT PRIOR TO CONNECTIONS MUD WEIGHT: 9.0 PPG IN, 9.0 PPG OUT PUMP SWEEPS EVERY 500'= NO NOTICABLE INCREASE IN CUTTINGS AT SHAKERS 05:30 06:00 0.50 06:00 15:00 9.00 DRILL P INT1 SERVICE TOPDRIVE AND BLOCKS DRILL P INT1 DRILL 8.75" INTERMEDIATE HOLE FROM 5234' MD TO 5992' MD (4598' TVD) 600 GPM, 2780 PSI ON, 2590 PSI OFF 80 RPM, 8K TORQUE ON, 6K TORQUE OFF PU 146K, SO 99K, ROT 114K ECD: CALCULATE = 9.7, ACTUAL= 9.9 PPG SURVEY EVERY -90 FT BACKREAM 90 FT PRIOR TO CONNECTIONS MUD WEIGHT: 9.1 PPG IN, 9.2 PPG OUT PUMP SWEEPS EVERY 1 000' = NO NOTICABLE INCREASE IN CUTTINGS AT SHAKERS OBTAIN SPR'S @ 5420' MD AND 5900' MD 15:00 16.00 1.00 DRILL N WAIT 5,993.50 INTI CIRCULATE BOTTOMS UP IN PREPARATION TO PULL UP TO THE SHOE DUE TO CONFLICTING PHASE WEATHER CONDITIONS PULL 1 FT/MIN WHILE PUMPING 600 GPM AND ROTATING 80 RPM RECEIVED APPROVAL TO PROCEDE WITH OPERATIONS FROM THE BASE OPERATIONS SUPERINTENDENT 16:00 00:00 8.00 DRILL P INTI DRILL 8.75" INTERMEDIATE HOLE FROM 5992' MD TO 6847' MD (5150' TVD) 600 GPM, 3180 PSI ON, 3035 PSI OFF 80 RPM, 9K TORQUE ON, 6K TORQUE OFF PU 149K, SO 108K, ROT 120K - ECD: CALCULATE = 10.13, ACTUAL = 10.63 PPG SURVEY EVERY -90 FT BACKREAM 90 FT PRIOR TO CONNECTIONS - MUD WEIGHT: 9.9 PPG IN, 9.9 PPG OUT PUMP SWEEPS EVERY 1000' = NO NOTICABLE INCREASE IN CUTTINGS AT SHAKERS OBTAIN SPR'S @ 6532' MO STARTED TO SPIKE UP THE MW @ 6600' MD TO 10.2 PPG Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Operation Summary Report Page 12 of 30 Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00 ) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1,30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 1/3/2014 00:00 11:00 11.00 DRILL P INTI DRILL 8.75" INTERMEDIATE HOLE FROM 6847' MD TO 7605' MD (5648' TVD) 600 GPM, 3840 PSI ON, 3590 PSI OFF 80 - 100 RPM, 9K TORQUE ON, 6K TORQUE OFF PU 168K, SO 111K, ROT 128K ECD: CALCULATED = 10.13, ACTUAL = 10.63 PPG SURVEY EVERY -90 FT BACKREAM 90 FT PRIOR TO CONNECTIONS PUMP SWEEPS EVERY 1 000' = NO NOTICEABLE INCREASE IN CUTTINGS AT SHAKERS - FINISH SPIKING UP MUD TO 10.2 PPG IN, 10.2 PPG OUT - OBTAIN SPR'S @ 7035' MD AND 7605' MD 11:00 11:30 0.50 DRILL P INT1 SERVICE TOPDRIVE AND BLOCKS 11:30 19:30 8.00 DRILL P INTI DRILL 8.75" INTERMEDIATE HOLE FROM 7605' MD TO 8246' MD (6018' TVD) 580 GPM, 4030 PSI ON, 3860 PSI OFF 100 RPM, 8K TORQUE ON, 6K TORQUE OFF PU 170K, SO 117K, ROT 128K ECD: CALCULATED = 11.1 PPG, ACTUAL = 11.43 PPG - SURVEY EVERY -90 FT BACKREAM 90 FT PRIOR TO CONNECTIONS SPIKE UP MUD TO 10.4 PPG IN, 10.4 PPG OUT @ 81 00'MD - PUMP SWEEPS EVERY 1000'= NO NOTICABLE INCREASE IN CUTTINGS AT SHAKERS - SLOWED PUMP RATE TO 580 GPM DUE TO HIGH PUMP PRESSURES OBTAIN SPR'S @ 8170' MD MUD STARTED LEAKING FROM KELLY HOSE UNION ON TOPDRIVE 19:30 20:30 1.00 DRILL N RREP 8,247.50 INTI PULL ONE STAND, BREAK KELLY HOSE AND REPLACE O-RING IN HAMMER UNION ON TOPDRIVE - PRESSURE TEST KELLY HOSE TO CHECK FOR LEAKS TO 4500PSI 20:30 00:00 3.50 DRILL P INT1 DRILL 8.75" INTERMEDIATE HOLE FROM 8246' MD TO 8380' MD (6158' TVD) 570 GPM, 3950 PSI ON, 3840 PSI OFF 100 RPM, 9K TORQUE ON, 6K TORQUE OFF PU 173K, SO 117K, ROT 131K ECD: CALCULATED = 11.1 PPG, ACTUAL = 11.35 PPG - SURVEY EVERY -90 FT BACKREAM 90 FT PRIOR TO CONNECTIONS MUD WEIGHT: 10.4 PPG IN, 10.4 PPG OUT PUMP SWEEPS EVERY 1 000' = NO NOTICABLE INCREASE IN CUTTINGS AT SHAKERS - SLOWED PUMP RATE TO 560 GPM AND ROP TO 90 FT/HR TO CONTROL ECD TO LESS THAN 1 PPG EMW OVER STATIC MUD WEIGHT Printed 1/27/2014 12:47:57PM Common Well Name: Z-70 Event Type: DRL- ONSHORE (DON) Project: Prudhoe Bay Rig Name/No.: PARKER 273 Rig Contractor: PARKER DRILLING CO. Active datum: Z-70 ACTUAL @103.10usft (abc Date From - To Hrs (hr) --- 1/4/201 0 - 12:00 1 12.00 North America - ALASKA - BP Page 13 of 30 Operation Summary Report AFE No Start Date: 12/20/2013 End Date: 1/19/2014 X3-0124W-C:DRILL (11,224,421.00) Site: PB Z Pad Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 U WI: 500292350000 Mean Sea L Task DRILL 1200 - 00:00 12.00 DRILL 1/5/2014 100:00 - 09:30 9.50 DRILL 0930 - 10:00 0.50 DRILL Code NPT NPT Depth (usft) Phase Description of Operations P INT1 DRILL 8.75" INTERMEDIATE HOLE FROM 8380' MD TO 8840' MD (6530' TVD) 550 GPM, 3970 PSI ON, 3785 PSI OFF - 100 RPM, 8K TORQUE ON, 7K TORQUE OFF PU 188K, SO 121 K, ROT 144K ECD: CALCULATED= 11.1 PPG, ACTUAL= 11.4 PPG - SURVEY EVERY -90 FT BACKREAM 90 FT PRIOR TO CONNECTIONS - MUD WEIGHT: 10.4 PPG IN, 10.4 PPG OUT PUMP SWEEPS EVERY 1000'= NO NOTICEABLE INCREASE IN CUTTINGS AT SHAKERS INCREASED LOTORQ PERCENTAGE TO 3% DUE TO DIFFICULTY SLIDING DECREASED PUMP RATE TO 550 GPM DUE TO HIGH PUMP PRESSURE P OBTAIN SPR'S @ 865V MD INT1 DRILL 8.75" INTERMEDIATE HOLE FROM 8840' MD TO 9598' MD (7224' TVD) 550 GPM, 4205 PSI ON, 3990 PSI OFF 110 RPM, 9K TORQUE ON, 7K TORQUE OFF PU 205K, SO 128K, ROT 153K ECD: CALCULATED = 11.1 PPG, ACTUAL = 11.37 PPG - SURVEY EVERY -90 FT - BACKREAM 90 FT PRIOR TO CONNECTIONS - MUD WEIGHT: 10.4 PPG IN, 10.4 PPG OUT PUMP SWEEPS EVERY 1 000' = NO NOTICEABLE INCREASE IN CUTTINGS AT SHAKERS - DIFFERENTIAL PRESSURE WAS LIMITED TO 250 PSI DUE TO HIGH PUMP PRESSURES CAUSING LOWER ROP -OBTAIN SPR'S @ 9121' MD P INT1 DRILL 8.75" INTERMEDIATE HOLE FROM 9598' MD TO 10072' MD (7568' TVD) 550 GPM, 4005 PSI ON, 3730 PSI OFF 110 RPM, 12K TORQUE ON, 10K TORQUE OFF PU 222K, SO 133K, ROT 162K ECD: CALCULATED = 11.1 PPG, ACTUAL = 111.4 PPG SURVEY EVERY -90 FT BACKREAM 90 FT PRIOR TO CONNECTIONS MUD WEIGHT: 10.4 PPG IN, 10.4 PPG OUT - DIFFERENTIAL PRESSURE WAS LIMITED TO 250 PSI DUE TO HIGH PUMP PRESSURES CAUSING LOWER ROP OBTAIN SPR'S @ 10166' MD P INT1 SERVICE RIG Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Page 14 of 30 Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3-0124W-C:DRILL (11,224,421.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Daterrime: 12/23/2013 1:30:OOAM 'Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UN: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) -- --- Date From - To Hrs -- ------ Task Code NPT NPT Depth Phase Description of Operations _ (hr) (usft) 10:00 00:00 14.00 DRILL P INT1 1 DRILL 8.75" INTERMEDIATE HOLE FROM 10072' MD TO 10668' MD (8216' TVD) 515 GPM, 3910 PSI ON, 3600 PSI OFF 100 RPM, 13K TORQUE ON, 11K TORQUE TOFF - PU 246K, SO 137K, ROT 166K ECD: CALCULATED= 11.1 PPG, ACTUAL= 11.3 PPG SURVEY EVERY -90 FT - BACKREAM 90 FT PRIOR TO CONNECTIONS - MUD WEIGHT: 10.4 PPG IN, 10.4 PPG OUT - PUMP RATE WAS REDUCED TO 515 GPM DUE TO HIGH PUMP PRESSSURES —� --- - 8' D OBTAIN SPR 'S @ 1063 M - 1/6/2014 00:00 14 30— 14.50 DRILL P INTI DRILL 8.75" INTERMEDIATE HOLE FROM 10668' MD TO 11085' MD (8598' TVD) - 504 GPM, 3640 PSI ON, 3346 PSI OFF - 100 RPM, 12K TORQUE ON, 1 OK TORQUE OFF PU 242K, SO 140K, ROT 176K ECD: CALCULATED = 11.03 PPG, ACTUAL= 11.3 PPG - SURVEY EVERY -90 FT BACKREAM 90 FT PRIOR TO CONNECTIONS MUD WEIGHT: 10.4 PPG IN, 10.4 PPG OUT OBSERVED DRILLING BREAK @ 11085'MD 14 30 16:30 2.00 DRILL P INT1 CIRCULATE BOTTOMS UP FOR SAMPLES 550 GPM, 4035 PSI 130 RPM, 14.5KTORQUE 16.30 17:00 0.50 DRILL P INT1 DRILL 8.75" INTERMEDIATE HOLE FROM 11085' MD TO 11093' MD (8606' TVD) 520 GPM, 4000 PSI ON, 3846 PSI OFF 100 RPM, 13.5K TORQUE ON, 11KTORQUE OFF PU 247K, SO 144K, ROT 177K ECD: CALCULATED = 11.02 PPG, ACTUAL = 11.2 PPG - MUD WEIGHT: 10.4 PPG IN, 10.4 PPG OUT 17:00 1830 1.50 DRILL P INTI CIRCULATE HOLE CLEAN WITH 3 BOTTOMS UP - 550 GPM, 4000 PSI 130 RPM, 14K TRQUE - - PU 245K, SO 135K @ TD - ECD: CALCULATED = 11.02 PPG, ACTUAL = 11.09 PPG OBTAIN SPR'S @ 11093' MD 18:30 21:00 2.50 DRILL P INT1 MONITOR WELL FOR 10 MIN = STATIC, PUMP OUT OF THE HOLE @ 2 BPM FROM 11093' MD TO 9883' MD 84 GPM, 340 PSI PULLING SPEED 56 FT/MIN PU 231 K, SO 135K ENCOUNTERED TIGHT SPOT @ 9883' MD, PULLED 25KAND 200 PSI PRESSUE INCREASE 21:00 - 21:30 0.50 DRILL P INTI RUN IN THE HOLE FROM 9883' MD TO 10050' MD - CIRCULATE HOLE FOR 30 MIN @ 550 GPM, 120 RPM, RECIPROCATING PIPE g0' Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Page 15 of 30 Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00) - - -- -- . -`. --- --- - -~i Project: Prudhoe Bay .Site: PB Z Pad -- � Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO.UWI: 500292350000 - Active datum: Z-70 ACTUAL @103.1 Ousft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations - (hr) i y (usft) -- — ----- - 21:30 23:00 1.50 DRILL P INT1 PUMP OUT OF THE HOLE @ 2 BPM FROM 10050' MD TO 9503' MD 84 GPM, 340 PSI PULLING SPEED 56 FT/MIN PU 231K, SO 135K ENCOUNTERED TIGHT SPOT @ 9503' MD, PULLED 25K AND 200 PSI PRESSUE INCREASE - - RU -- -- - 23:00 00:00 , 1.00 � DRILL P � INT1 RUN IN HOLE FROM 9503' MD TO 9598' MD CIRCULATE HOLE CLEAN WITH 1.5 BOTTOMS UP - 550 GPM, 3600 PSI - 100 RPM, 8K TORQUE SLOWLY PULL ONE STAND WHILE CIRCULATING BOTTOMS UP 1/7/2014 00:00 02.30 2.50 DRILL P INTI PUMP OUT OF THE HOLE @ 2 BPM FROM 9598' MD TO 8820' MD 84 GPM, 340 PSI PULLING SPEED 56 FT/MIN PU 231 K, SO 135K WORKED THROUGH TIGHT SPOT @ 9350' MD 02.30 03:30 1.00 DRILL P t INT1 PULL OUT OF THE HOLE ON ELEVATORS I FROM 8820' MD TO TWO STANDS ABOVE GHOST REAMER TD @ 8210' MD PULLING SPEED 56 FT/MIN - - PULLED FREE WITH NO TIGHT SPOTS 03.30 05:00 1.50 DRILL P INTI CIRCULATE HOLE CLEAN WITH 2 BOTTOMS UP 600 GPM, 3770 PSI - 100 RPM, 7K TORQUE 05:00 08 00 3.00 DRILL P INTI TRIP IN THE HOLE ON ELEVATORS FROM 8210' MD TO 11093MD - TAG AT 11020' MD AND WASH DOWN LAST STAND, STAGE PUMPS UP TO 300 GPM, 1685 PSI, 30 RPM, 11 K TORQUE 10:00 2.00 DRILL P INTI NO OTHER HOLE ISSUES WHILE TRIPPING IN THE HOLE 08:00 CIRCULATE HOLE CLEAN WITH 2 BOTTOMS UP 550 GPM, 3980 PSI - 100 RPM, 11 K TORQUE 10:00 11:30 1.50 DRILL P INT1 CIRCULATE BOTTOMS UP WHILE BACK I REAMING OUT OF THE HOLE FROM 11 093'MD TO 10830' MD 550 GPM, 3890 PSI 120 RPM, 12K TORQUE PU 253, SO 134, ROT 177 11:30 15:00 3.50 DRILL P INT1 MONITOR WELL FOR 10 MIN = STATIC, PUMP OUT OF THE HOLE @ 2 BPM FROM 10830' MD TO 8745' MD 84 GPM, 320 PSI PU 240K, SO 120K 15:00 1930 4.50 DRILL P INT1 PULL OUT OF THE HOLE ON ELEVATORS FROM 8745' MD TO 3716' MD PU 120K, SO 88K @ 3716' MD 19:30 20:30 1.00 DRILL P INT1 CIRCULATE 2 BOTTOMS UP AT 9 5/8" CASING SHOE 600 GPM, 2490 PSI 100 RPM, 5K TORQUE Printed 1/27/20'14 12:47:57PM Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Page 16 of 30 Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3-0124W-C:DRILL (11,224,421.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 20:30 - 22:30 2.00 DRILL P INTI PULL OUT OF THE HOLE ON ELEVATORS FROM 3716' MD TO 959' MD 2230 - 23:00 0.50 BOPSUR P INT1 HOLD PRE JOB SAFETY MEETING TO UD BHA MONITOR WELL FOR 10 MIN = STATIC WEEKLY BOP FUNCTION TEST FROM LER PANEL 23:00 00:00 1.00 DRILL P INT1 BREAK OUT AND LAY DOWN BHA FROM 959' MD TO 526' MD 1/8/2014 0000 - 04:30 4.50 DRILL P INT1 BREAK OUT AND LAY DOWN BHA FROM 526' MD TO SURFACE - BIT GRADE 2/3 IN GAUGE, STABILIZERS IN GAUGE 0430 0500 0.50 DRILL P INT1 CLEAN AND CLEAR RIG FLOOR OF UNNECESSARY TOOLS TO PREPARE FOR RUNNING CASING 05:00 05:30 0.50 BOPSUR P INT1 DRAIN STACK, PULL WEAR BUSHING 05:30 - 06:30 1.00 BOPSUR P INT1 CHANGE OUT UPPER PIPE RAMS TO 7" CASING RAMS - WITH BLIND RAMS CLOSED CIRCULATED THROUGH KILL LINE TO THE MGS TO ACTIVE PITS TO MONITOR WELL = NO GAIN / NO LOSSES DURING RAM CHANGE OUT 06:30 08:00 1.50 BOPSUR P INTI PICK UP AND MAKE UP TEST JOINT ASSEMBLY, DRAIN STACK, RIH WITH TEST JOINTASSEMBLY, SET TEST PLUG,FILL STACK AND TEST JOINT WITH WATER 08:00 - 09:00 1.00 BOPSUR P INT1 TEST 7" CASING RAMS WITH 7" TEST JOINT TO 250 LOW AND 3500 HIGH FOR 5 MIN EACH 09:00 10:30 1.50 BOPSUR P INT1 PULL TEST PLUG, BREAK OUTAND LAY DOWN TEST JOINT ASSEMBLY AND TEST PLUG, DRAIN STACK, BLOW DOWN CHOKE AND KILL LINES, FILL STACK WITH MUD. 10:30 13:00 2.50 CASING P INT1 RIG UP CASING RUNNING EQUIPMENT REMOVE BX ELEVATORS AND BAILS PICK UP VOLANT TOOL, INSTALL LONG BAILS, BAIL EXTENSIONS, AND SIDE DOOR ELEVATORS PICK UP AND RIG UP CASING TONGS 1300 - 1330 0.50 CASING P INTI PERFORM DUMMY RUN WITH LANDING JOINT - MARK LANDING JOINTAT ROTARY TABLE WITH SETTING DEPTH, DATE, AND WELL NUMBER Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Operation Summary Report Common Well Name: Z-70 Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 Rig Contractor: PARKER DRILLING CO. Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date iFrom - To Hrs Task Code NPT (hr) 13:30 - 00' i - 10.50 CASING P 1/9/2014 00 00 15:00 15.00 CASING P Printed 1/27/2014 12:47:57PM Page 17 of 30 AFE No End Date: 1/19/2014 IX3-0124W-C:DRILL (11,224,421.00) 1:30:OOAM Rig Release: 1/19/2014 U WI: 500292350000 NPT Depth Phase Description of Operations (usft) -- _ INT, RUN 7", 26#, L-80, VAMTOP HC CASING FROM SURFACE TO 4795' MD CHECK FLOATS USE JET LUBE SEAL GUARD PIPE DOPE TORQUE TURN CONNECTIONS TO 11950 FT -LBS - RUN 152 FLOATING CENTRALIZERS ON JOINTS 1 - 152 RUN IN HOLE AT 80 FT/MIN IN CASING, REDUCED SPEED TO 30 FT/MIN IN OPEN HOLE - BREAK CIRCULATION EVERY 10 JOINTS AT 6 BPM FOR -5 MINUTES INSIDE CASING, BREAK CIRCULATION EVERY 5 JOINTS AT 3 BPM IN OPEN HOLE THROUGH UGNU - OBTAIN PU/SO WEIGHTS EVERY 10 JOINTS IN OPEN HOLE MUD WEIGHT: 10.4 PPG IN, 10.4 PPG OUT NO LOSSES WHILE RIH NOTIFIED AOGCC OF UPCOMING BOP TEST @ 18:45 INT1 RUN 7", 26#, L-80, VAMTOP HC CASING FROM 4795' MD TO 11 091'MD CHECK FLOATS USE JET LUBE SEAL GUARD PIPE DOPE TORQUE CONNECTIONS TO 11950 FT -LBS RUN 152 FLOATING CENTRALIZERS ON JOINTS 1 - 152 RUN IN HOLE AT 30 FT/MIN IN OPEN HOLE BREAK CIRCULATION EVERY 5 JOINTS AT 3 BPM IN OPEN HOLE THROUGH THE UGNU, BREAK CIRCULATION EVERY 10 JOINTS AT 3 BPM FOR 5 MIN FROM THE BOTTOM OF THE UGNU TO -200FT ABOVE THE MLV, CIRCULATE AT 6 BPM FOR 9 MIN EVERY JOINT FROM 9162' MD TO 9362' MD TO GET BOTTOMS UP BEFORE ENTERING THE MLV, FILL PIPE EVERY 10 JOINTS FROM 9339' MD TO 11 091'MD WITHOUT BREAKING CIRCULATION OBTAIN PU/SO WEIGHTS EVERY 10 JOINTS MUD WEIGHT: 10.4 PPG IN, 10.4 PPG OUT NO LOSSES WHILE RIH North America - ALASKA - BP Operation Summary Report Page 18 of 30 Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00 ) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 15:00 21:00 6.00 CASING P INTI STAGE UP TO CEMENTING RATE IN 1 BPM INCREMENTS TO FINAL CIRCULATING RATE OF 7 BPM. @ 2 BPM, 554 PSI @ 3 BPM, 665 PSI @ 4 BPM, 796 PSI @ 5 BPM, 860 PSI @ 6 BPM, 900 PSI @ 7 BPM, 960 PSI CONDITION MUD TO 10.4 PPG, 11 PV, 18 YP INITIAL PRESSURE AT CEMENTING RATE: 975 PSI - FINAL PRESSURE AT CEMENTING RATE AFTER HOLE CONDITIONED: 900 PSI - CIRCULATE TOTAL OF 6.5 TIMES BOTTOMS -UP RECIPROCATED PIPE 6 FT NO LOSSES WHILE CIRCULATING PROVIDE AOGCC WITH UPDATE OF ESTIMATED TIME TO BOP PRESSURE TEST @ 17:30 21:00 - 00:00 3.00 CEMT P INTI CEMENT 7" INTERMEDIATE CASING - SEE REPORT 01/10/2014 Printed 1/27/2014 12.47.57PM North America - ALASKA - BP Operation Summary Report Page 19 of 30 Common Well Name: Z-70 FOLLOWS: AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00 ) Project: Prudhoe Bay SPACER @ 5 BPM, 530 - 480 PSI DROP BOTTOM PLUG - PUMP 182 BBLS OF 11.5 PPG LITECRETE Site: PS Z Pad LEAD CEMENT @ 4 BPM, EXCESS VOLUME Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. 5 BPM. EXCESS VOLUME 30% (YIELD 1.17 - - -- UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) DROP TOP PLUG Date From - To Hrs Task Code I NPT NPT Depth Phase Description of Operations WATER FROM CEMENTERS PERFORM DISPLACEMENT WITH RIG PUMPS AND 10.4 PPG LSND MUD PER SLB CADE I 1/10/2014 00:00 01:30 1.50 CEMT P 100 BBLS DISPLACED AT 6 BPM: ICP 645 PSI, INT1 CEMENT 7" INTERMEDIATE CASING AS Printed 1/27/2014 12:47:57PM FOLLOWS: FILL LINES WITH WATER AND PRESSURE TEST TO 250 PSI LOW AND 4000 PSI HIGH FOR 5 MINUTES EACH PUMP 45 BBLS OF 11.0 PPG MUDPUSH II SPACER @ 5 BPM, 530 - 480 PSI DROP BOTTOM PLUG - PUMP 182 BBLS OF 11.5 PPG LITECRETE LEAD CEMENT @ 4 BPM, EXCESS VOLUME 309% (YIELD 1.79 CU.FT/SK) PUMP 38 BBL$ OF 15- .8 FG CLASS G TAIL @ I 5 BPM. EXCESS VOLUME 30% (YIELD 1.17 - - -- CU.FT/SK) DROP TOP PLUG RECIPROCATED PIPE STRETCH WHILE PUMPING CEMENT AT 5 BPM - KICK OUT PLUG WITH 10 BBL OF FRESH WATER FROM CEMENTERS PERFORM DISPLACEMENT WITH RIG PUMPS AND 10.4 PPG LSND MUD PER SLB CADE - 180 BBLS DISPLACED AT 8 BPM: ICP 1120 PSI, FCP 1110 PSI 100 BBLS DISPLACED AT 6 BPM: ICP 645 PSI, 'FCP 850 PSI 60 BBLS DISPLACED AT 4 BPM: ICP 515 PSI, FCP 690 PSI 50 BBLS DISPLACED AT 3 BPM: ICP 550 PSI, FCP 870 PSI 21 BBLS DISPLACED AT 2 BPM: ICP 725 PSI, FCP 820 PSI HAD FULL RETURNS DURING CEMENT JOB REDUCE RATE TO 2 BPM PRIOR TO PLUG BUMP: FINAL CIRCULATING PRESSURE 820 PSI - BUMP PLUG AND INCREASE PRESSURE TO '1400 PSI, CHECK FLOATS - GOOD -CIP@01:20 TOTAL DISPLACEMENT VOLUME 420 BBLS (MEASURED BY STROKES @ 96% PUMP EFFICIENCY) RECIPROCATE PIPE STRETCH DURING DISPLACEMENT, LANDED CASING AND STOPPED RECIPROCATION WHEN MUD PUSH, LEAD, AND TAIL CEMENT EXITED THE BIT AND JUST BEFORE PLUG BUMP I - NO LOSSES WHILE PUMPING CEMENT -FIELD PICK TOP OF CEMENT 4901' MD 01:30 02:00 0.50 CEMT P INTI RIG DOWN CEMENT EQUIPMENT 02:00 05:30 I 3.50 WHSUR P I INT1 FMC ON LOCATION TO PULL LANDING JOINT, INSTALL PACKOFF AND TEST PACKOFF TO 1250 LOW FOR 5 MIN AND 5000 HIGH FOR 30 - - MIN. 05:30 07:30 2.00 CASING P INT1 RIG DOWN AND LAY DOWN SIDE DOOR ELEVATORS, BAIL EXTENSIONS, LONG BAILS, AND VOLONT TOOL, BREAK OUT LANDING JOINT FROM CROSSOVER. 07:30 08:30 1.00 BOPSUR P INTI CHANGE UPPER RAMS TO 2 7/8" X 5 1/2" VARIABLE RAMS 08:30 09:00 0.50 SOPSUR P INTI SERVICE RIG Printed 1/27/2014 12:47:57PM Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Page 20 of 30 Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3-0124W-C: DRILL (11,224,421.00 ) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:00AM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft)-- — _ 09:00 11:30 2.50 BOPSUR P INT1 RIG UP AND PREPARE TO TEST BOPE PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 832 PSI, PUMP 5 BBL OF 10.4 PPG LSND AFTER BREAKOVER @ 11:00 - 11:30 1400 2.50 CASING T P INT1 PRESSURE TEST 7" INTERMEDIATE CASING TO 250 PSI LOW FOR 5 MIN / 3500 PSI HIGH 'FOR 30 MIN EACH TEST APPROVED BY BP WTL RICH BURNETT 14:00 19:30 5.50 BOPSUR P INT1 TEST BOPE TO 250 PSI LOW, 3500 PSI HIGH FOR 5 MINUTES EACH TEST WITH 4" AND 4.5" TEST JOINTS ALL TESTS CHARTED, SEE ATTACHED BOP TEST CHARTS -TEST WITNESSED BYAOGCC REP CHUCK SCHEVE FAIL/ PASS ON H2S VISUALALARM, AND HIGH AUDIBLE LEL ALARM PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 610 PSI, PUMP .5 BBL OF 13.3 PPG LSND AFTER BREAKOVER 19:30 2200 2.50 WHSUR P INT1 @_1 9:30 INSTALL WEAR BUSHING WITH ID OF 6 3/4", CLEAN RIG FLOOR, INSTALL BAILS AND BX ELEVATORS ON TOP DRIVE, AND MAKE UP SAFETY JOINT, PREPARE TO PICK UP BHA PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 610 PSI, PUMP .5 BBL OF 13.3 PPG LSND AFTER BREAKOVER — ------ @21:00 22:00 - 00:00 2.00 DRILL P INT1 PICK UP SCHLUMBERGER ARCHER TOOL, MAKE UP BIT, AND TEST PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 590 PSI, PUMP 5 BBL OF 13.3 PPG LSND AFTER BREAKOVER @ 00:00 1/11/2014 00:00 02:00 2.00 DRILL N DFAL 11,093.00 INT1 TROUBLESHOOT SLB ARCHER ROTARY STEERABLE TOOL UNABLE TO PULL EXTENDER PROTECTIVE CAP ON THE UPHOLE PIN OF THE ARCHER TOOL -BREAK BIT, LAY DOWN ARCHER TOOL 02:00 03:00 1.00 DRILL P INT1 RIG CREW PREPARE TO CUT DRILL LINE SLB SUCCESSFULLY ABLE TO TROUBLESHOOT ARCHER ABLE TO PROCEED WITH PICKING UP BHA PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 580 PSI, PUMP 1.5 BBL OF 13.3 PPG LSND AFTER 03.00 05:30 2.50 T DRILL P INT1 BREAKOVER @ 02:00 -- PICK UP AND MAKE UP BHAAS PER SLB DD I FROM SURFACE TO 378' MD Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Operation Summary Report Page 21 of 30 Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3-0124W-C:DRILL (11,224,421.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) - r (U -ft) - - --- - 05:30 16:00 10.50 DRILL P INT1 TRIP IN THE HOLE ON ELEVATORS FROM 378' T MD TO 10443' MO FILL PIPE AND BREAK CIRCULATION EVERY 15 STANDS AS PER SLB DO PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 555 PSI, PUMP 1.5 BBL OF 13.3 PPG LSND AFTER BREAKOVER @ 06:00 - PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 550 PSI, PUMP 1.5 BBL OF 13.3 PPG LSND AFTER BREAKOVER @ 08:00 PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 550 PSI, PUMP 11.5 BBL OF 13.3 PPG LSND AFTER BREAKOVER @ 010:30 PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 550 PSI, PUMP 1.5 BBL OF 13.3 PPG LSND AFTER BREAKOVER @ 12:00 PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 525 PSI, PUMP 1 BBL OF 13.3 PPG LSND AFTER BREAKOVER @ 13:00 1600 1830 2.50 DRILL P INTI SLIP AND CUT 72' OF DRILLING LINE - CALIBRATE AMPHION BLOCK HEIGHT - TEST COWN SAVER - PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 580 PSI, PUMP 1 BBL OF 13.3 PPG LSND AFTER BREAKOVER @ 16:30 18:30 19:00 0.50 DRILL P INT1 TRIP IN THE HOLE ON ELEVATORS FROM 10443' MD TO 10805' MD - OBTAIN SPR'S AT 10805' MD 19:00 - 20:00 1.00 DRILL P INT1 WASH DOWN FROM 10803' MD TO 10992' MD - PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 580 PSI, PUMP 1 BBL OF 13.3 PPG LSND AFTER BREAKOVER - 1 - - - @ 19:30 20.00 - 21:00 1.00 DRILL P INT1 CIRCULATE BOTTOMS UP DUE TO HIGH TORQUE 240 GPM, 2400 PSI -40 RPM,14KTORQUE 21:00 - 22:30 1.50 DRILL P INTI DRILL OUT FLOAT COLLAR AND CEMENT FROM 10992' MD TO 11 080'MD 240 GPM, 2800 PSI 40 RPM, 16K TORQUE ON, 15K TORQUE OFF PU 270K, SO 110K, 147K PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 530 PSI, PUMP 1 BBL OF 13.3 PPG LSND AFTER BREAKOVER @ 22:00 22:30 - 00:00 1.50 DRILL P INT1 PUMP 40 BBL HIGH VIS SPACER AND DISPLACE 10.4 PPG LSND WITH 8.6 PPG POWER PRO SF 240 GPM, 1450 PSI 40 RPM, 4K TORQUE, RECIPROCATE PIPE 75- - FOLLOWING DISPLACEMENT TO POWER PRO SF TORQUE WAS REDUCED TO 4K FTLBS AND PUMP PRESSURE WAS REDUCED TO 1450 PSI Printed 1/27/2014 12.47:57PM North America - ALASKA - BP Operation Summary Report Page 22 of 30 Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3-0124W-C:DRILL (11,224,421.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth I Phase Description of Operations (hr) (usft) 1/12/2014 05:30 - 06:00 0.50 DRILL P INT1 RIG UP AND PERFORM LOT MUD WEIGHT: 8.6 PPG, 8604' TVD, 11091' MD PUMP 4 BBLS TO 1440 PSI BLEED BACK 3 BBLS FIT EMW = 11.8 PPG -UNSUCCESSFULLY ATTEMPT TO PERFROM FIT TO 12.5 PPG PER PROGRAM. _ t _TEST APPROVED BY DRILLING ENGINEER 06:00 20:00 14.00 DRILL P PROD1 DRILL 6 1/8" PRODUCTION HOLE FROM 11113' MD TO 11663' MD (8936' TVD) 270 GPM, 1822 PSI ON, 1810 PSI OFF 130 RPM, 6K TORQUE ON, 4K TORQUE OFF PU 192K, SO 152K, ROT 165K SURVEY EVERY —30 FT DURING THE BUILD SECTION BACKREAM 30 FT PRIOR TO CONNECTIONS - MUD WEIGHT: 8.6 PPG IN, 8.6 PPG OUT PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 550 PSI, PUMP 1 BBL OF 13.3 PPG LSND AFTER BREAKOVER @ 11:00 PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 650 PSI, PUMP 1 BBL OF 13.3 PPG LSND AFTER BREAKOVER @ 15:00 PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 670 PSI, PUMP 1 BBL OF 13.3 PPG LSND AFTER BREAKOVER - - @ 18:00 00:00 03:00 3.00 DRILL P INT1 CLEAN TROUGH, SHAKERS, AND PITS OBTAIN SPR'S @ 11 080'MD PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 550 PSI, PUMP 1 BBL OF 13.3 PPG LSND AFTER BREAKOVER @ 03:00 03.00 04.30 1.50 DRILL P h INT1 DRILL OUT CEMENT AND FLOAT SHOE FROM 11080' MD TO 11113' MD 270 GPM, 1690 PSI 40 RPM, 5K TORQUE ON — PU 190K, SO 147K, ROT 163K OBTAIN SPR'S @ 11080' MD SEND DOWNLINK TO SLB ROTARY STEERABLE 04:30 05:30 1.00 DRILL P INT1 PULL TO SHOE AND CIRCULATE BOTTOMS UP IN PREPARATION FOR FIT 270 GPM, 1690 PSI 70 RPM, 4.5K TORQUE 20:00 20:30 0.50 DRILL P PROD1 SERVICE RIG Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Page 23 of 30 Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3-0124W-C: DRILL (11,224,421.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code ! NPT NPT Depth Phase Description of Operations (hr) - — -(us_ _ _._ — - 20:30 - 00:00 3.50 DRILL P PROD1 DRILL 6 1/8" PRODUCTION HOLE FROM 11663' MD TO 11 925'MD (8957' TVD) 270 GPM, 1940 PSI ON, 1930 PSI OFF 130 RPM, 6K TORQUE ON, 4K TORQUE OFF PU 195K, SO 155K, ROT 165K SURVEY EVERY-30 FT DURING THE BUILD SECTION - LANDED BUILD SECTION @ 11 875'MD - SURVEY EVERY -90 FT AFTER BUILD SECTION BACKREAM 30 FT PRIOR TO CONNECTIONS MUD WEIGHT: 8.7 PPG IN, 8.7 PPG OUT PUMP DOWN OA AT.5 BBL/MIN TO CONFIRM INJECTIVITY, BREAK OVER AT 660 PSI, PUMP 1 BBL OF 13.3 PPG LSND AFTER BREAKOVER I @ 21:00 1/13/2014 0000 1030 10.50 DRILL P PROD1 DRILL 6 1/8" PRODUCTION HOLE FROM 11925' MD TO 12710' MD (8864' TVD) 270 GPM, 1935 PSI ON, 1920 PSI OFF 140 RPM, 7K TORQUE ON, 5K TORQUE OFF PU 194K, SO 139K, ROT 156K - SURVEY EVERY-30 FT DURING THE BUILD SECTION LANDED BUILD SECTION @ 11875' MD SURVEY EVERY -90 FT AFTER BUILD I SECTION BACKREAM 30 FT PRIOR TO CONNECTIONS MUD WEIGHT: 8.7 PPG IN, 8.7 PPG OUT - FREEZE PROTECT OA: PUMP 29 BBL OF 13.3 PPG LSND @ 2.5 BPM, PUMP 58 BBL OF 6.8 PPG DIESEL @ 2 BPM, 1025 PSI, TOTAL 13.3 PPG IN ANNULUS = 48, FINAL SHUT- IN PRESSURE = 1025 PSI 10.30 11:00 0.50 DRILL P PROD1 SERVICE RIG 11 00 0000 13.00 DRILL P PROD1 DRILL 6 1/8" PRODUCTION HOLE FROM 12710' MD TO 13505' MD (8918' TVD) 270 GPM, 2000 PSI ON, 1980 PSI OFF - 120 RPM, 8K TORQUE ON, 6K TORQUE OFF - PU 201 K, SO 142K, ROT 160K -SURVEY EVERY-90 FT AFTER BUILD SECTION BACKREAM 90 FT PRIOR TO CONNECTIONS MUD WEIGHT: 8.7 PPG IN, 8.7 PPG OUT VARIED RPM'S DUE TO SHOCK LOADS ON DIRECTIONAL TOOLS I- REDUCED FLOW RATE TO 200 GPM FOR ARCHER RSS LIMITATIONS DUE TO PLUGGED NOZZLE 13365' MD TO 13490' MD 1/14/2014 0000 0530 5.50 DRILL P PROD1 DRILL 1/8" PRODUCTION HOLE FROM 13505' MD TO 14036' MD, WELL TOTAL DEPTH 270 GPM, 2060 PSI ON, 2050 PSI OFF 130 RPM, 11 K TORQUE ON, 8K TORQUE OFF - PU 205K, SO 139K, ROT 160K SURVEY EVERY-90 FT AFTER BUILD SECTION BACKREAM 90 FT PRIOR TO CONNECTIONS MUD WEIGHT: 8.7 PPG IN, 8.7 PPG OUT 05:30 0700 1.50 DRILL P PROD1 CIRCULATE 1 BOTTOMS UP RECIPROCATE PIPE 90' WHILE PUMPING 270 GPM, 2050 PSI, 130 RPM, 10KTORQUE NO SIGNIFICANT INCREASE IN CUTTINGS Printed 1/27/2014 12:47:57PM V Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Page 24 of 30 Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00 ) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 07:00 - 16:30 9.50 DRILL P PROD1 BACKREAM OUT OF THE HOLE FROM 14036' MD TO 11091' MD MONITOR WELL FOR 10 MIN = STATIC 270 GPM, 1890 PSI, 150 RPM, 10K TORQUE 500-1000 FT/HR BACKREAMING SPEED MUD WEIGHT: 8.6 PPG IN, 8.7 PPG OUT MAD PASS FROM 13480'MD TO 13100WD AT 200 FT/HR 16:30 - 17:00 0.50 DRILL P PRODi CIRCULATE ONE BOTTOMS UP AT 7" CASING SHOE; 270 GPM, 1750 PSI, 150 RPM, 7K TORQUE RECIPROCATE FULL STAND. 17:00 - 17:30 0.50 DRILL P PROD1 H2S DRILL - HIGH LEVEL H2S ALARM IN MUD MODULE MAC AIR HEATER SECURE WELL WITH ANNULAR PREVENTER EVACUATE RIG TO SECONDARY MUSTER MAKE PROPER NOTIFICATIONS SWEEP RIG WITH H2S MONITOR, ALL CLEAR RE-ENTER RIG CONFIRM ZERO PRESSURE ON WELL OPEN UP WELL TO MUD GAS SEPARATOR FLOW CHECK WELL FOR 10 MIN = STATIC AAR WITH CREWS ON EVACUATION 17:30 - 18:00 0.50 DRILL P PROD1 FINISH CIRCULATE ONE BOTTOMS UP AT 7" CASING SHOE, 270 GPM, 1750 PSI, 150 RPM, 7 K TORQUE RECIPROCATING FULL STAND. 18:00 23:00 5.00 DRILL P PROD1 POH WITH 6-1/8" DRILLING ASSEMBLY FROM 11091' MD TO 4175' MD - RACKING BACK 4" DRILLPIPE -MONITOR WELL FOR 10 MIN: STATIC - MUD WEIGHT 8.6PPG IN, 8.7 PPG OUT -WELL TOOK 2 BBLS/HR OVER DISPLACEMENT - P/U = 177K, S/O = 145K AT 10758'MD 23:00 00:00 1.00 DRILL P PROD1 POH WITH 6 1/8" DRILLING BHA FROM 4175' TO 3584' MD - PCH ON ELEVATORS WHILE L/D 4" DP TO PIPE SHED - P/U 84K, S/O 84K AT 4175' MD -WELL TOOK 2 BBLS/HR OVER DISPLACEMENT 1/15/2014 00:00 05:00 5.00 DRILL P PROD1 POH WITH 6 1/8" DRILLING BHA FROM 3584' TO BHAAT 379' MD, LAYING DOWN 4" DRILLPIPE -WELL TOOK 2 BBLS/HR OVER DISPLACEMENT - FLOWCHECK WELL PRIOR TO PULLING BHA THROUGH STACK (STATIC). 05:00 - 07:30 2.50 DRILL P PROD1 LAYDOWN 6-1/8" DRILLING ASSEMBLY. GRADE BIT 1 -1 -IN GAUGE. - CLEAN AND CLEAR RIG FLOOR AFTER TRIPPING. 07:30 - 09:30 2.00 BOPSUR C PROD1 PULL WEAR RING. RUN IN HOLE WITH TEST PLUG AND 3-1/2" TEST JOINT ASSEMBLY. FILL STACKAND RIG UP TO TEST BOPE. Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Page 25 of 30 Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3-0124W-C:DRILL (11,224,421.00 ) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 09:30 - 10:30 1.00 BOPSUR C PROD1 PRESSURE TEST ANNULAR PREVENTER, UPPER VBRS AND LOWER VBRS TO 250 PSI LOWAND 3500 PSI HIGH FOR FIVE MIN EACH WITH 3-1/2" TEST JOINT- - ALL PASSING TESTS, SEE ATTACHED CHART. - PERFORM WEEKLY BOPE FUNCTION TEST FROM LER PANEL. 1030 11:30 1.00 BOPSUR C PROD1 RIG DOWN AFTER BOPE TESTING. INSTALL WEAR RING. 11:30 13:00 1.50 TA C PROD1 LOAD TOOLS TO RIG FLOOR AND PREPARE TO PICKUP 3-1/2" DRILLPIPE. 13:00 13:30 0.50 TA C PROD1 MAKEUP AND RUN IN HOLE WITH HES 7" CEMENT RETAINER. 13:30 17:00 3.50 TA C PROD1 TRIP IN HOLE WITH HES 7" CEMENT RETAINER, PICKING UP 3-1/2", 13.3#, S-135, NC -38 DRILLPIPE OUT OF PIPE BARN. 17:00 00:00 7.00 TA C PROD1 TRIP IN HOLE WITH HES 7" CEMENT RETAINER AND 3-1/2" DRILLPIPSE STINGER ON 4" DRILLPIPE OUT OF THE DERRICK. 50 FPM, FILL PIPE EVERY 2000' MD. 1/16/2014 00:00 03:30 3.50 TA C PROD1 TRIP IN HOLE WITH HES 7" CEMENT RETAINER FROM 7900' MD AT MIDNIGHT TO SETTING DEPTH AT 10996' MD - 50 FPM, BREAK CIRCULATION EVERY 2000 MD'. - UNANNOUNCED KICK WHILE TRIPPING DRILL AND AAR - RECORD SLOW PUMP RATES SPR'S: MP #1 20 -SPM @ 354 -PSI, 30 -SPM @ 452 -PSI, 40 -SPM @ 585 -PSI MP #2 20 -PSM @ 333 -PSI, 30 -SPM @ 439 -PSI, 40 -SPM @ 583 -PSI 10,996' MD, 8,517' TVD 03:30 08 30 5.00 TA X WAIT 10,996.00 PROD1 WITH CEMENT RETAINER AT SETTING DEPTH, 10996' MD, WAIT ON AUTHORIZATION TO PROCEED WITH PLUG AND ABANDONMENT OPERATIONS FROM AOGCC. - MONITOR WELL WITH CONSTANT CIRCULATION OVER TOP OF WELL - BREAK OUT AND UD 4" DP STANDS FROM DERRICK LOAD, DRIFT AND STRAP 4.5" NSCT TUBING CLEAN AND CLEAR RIG 08.30 11.30 3.00 TA C PROD1 R/U SLB CEMENTERS STAGE IN SLB CEMENT UNITS LINE UP CH2M VAC TRUCKS R/U SLB CEMENTING EQUIPMENT 11 30 1200 0.50 TA C PROD1 SET CEMENT RETAINER AT 10996' MD (95' ABOVE 7" SHOE, 10' ABOVE FLOAT COLLAR). - SLACKOFF '15K LBS TO CONFIRM SET. -PUMP 7.0-BBLS A 2.0 -BPM, 1580 -PSI TO CONFIRM INJECTIVITY BELOW RETAINER - MONITORED DP PRESSURE FOR 10.0 -MINUTES. PRESSURE BLED OFF FROM FINAL INJECTION PRESSURE OF 1580.0 -PSI TO 685.0 -PSI IN 10.0 -MINUTES. North America - ALASKA - BP Operation Summary Report Page 26 of 30 Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.1 Ousft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12 00 - 15:30 3.50 TA + C PROD1 UNSTING FROM 7" CEMENT RETAINER AND RIG UP FOR CEMENTING OPERATIONS. R/U FOSV AND PUMP IN ASSEMBLY R/U CEMENT HOSE TO PUMP IN SUB CLOSE UPPER AND LOWER IBOP ON TOP DRIVE 15:30 17:00 1.50 TA C PROD; PRESSURE TEST CEMENT LINE FILL LINES AND REMOVE AIR FROM SYSTEM - PRESSURE TEST CMT LINES 250 -PSI LOW FOR 5 CHARTED MINUTES PRESSURE TEST CMT LINES 4500 -PSI HIGH 'FOR 5 CHARTED MINUTES — - — — -— 17:00 18:30 1.50 TAC PROD1 SQUEEZE CEMENT BELOW RETAINER P/U 15' ABOVE RETAINER PUMP 10.1-BBLS OF 11.0 -PPG MUD PUSH II @ 5.0 -BPM @ 577 -PSI FINAL TREATING ;PRESSURE PUMP 25.6-BBLS (123.45 SX) OF 15.8 -PPG CLASS G TAIL (1.16 CU. FT./SK) CEMENT @ 1239 -PSI FINALTREATING PRESSURE I- PUMP 10.0-BBLS OF 11.0 -PPG MUD PUSH II @ 1017 -PSI FINAL TREATING PRESSURE TOOK RETURNS THROUGH MGS HOLDING 700 -1000 -PSI BACKPRESSURE WITH SUPERCHOKE - PUMP 71.5 BBLS OF 8.7 -PPG POWERPRO MUD @ 4.0 -BPM @ 1051 -PSI TO SPOT CEMENT 2.0 -BBL ABOVE RETAINER - STING INTO RETAINER AND SQUEEZE 23.0-BBLS (110.91 SX) OF 15.8 -PPG CLASS G TAIL CEMENT BELOW RETAINER @ 2.0 -BPM AT 1217 -PSI FINAL TREATING PRESSURE - HELD -850-PSI ON ANNULUS WHILE SQUEEZING CEMENT BELOW RETAINER - UNSTING FROM RETAINER WITH 850 -PSI ON ANNULUS TO ENSURE NO BLEED BACK THROUGH RETAINER. NO INCREASE IN ANNULUS PRESSURE WHEN UNSTINGING FROM RETAINER - BLED OFF ANNULUS PRESSURE TO 0 -PSI THROUGH SUPERCHOKE - OPENED ANNULAR PREVENTER AFTER CONFIRMING NO TRAPPED PRESSURE BELOW CEMENT ADDITIVES: D046 ANTIFOAM 0.200% BWOC D065 DISPERSANT 0.300% BWOC D167 FLUID LOSS 0.450% BWOC D153 ANTISETTLING 0.200% BWOC D177 RETARDER 0.080 GAUSK 18:30 2000 1.50 TA C PROD1 CIRCULATE OUT EXCESS CEMENT - BREAK CONNECTION AND DROP FOAM DP WIPER BALL PUMP 360 BBLS SURFACE TO SURFACE VOL 8 BPM, 1310 PSI PH INCREASE IN MUD PUSH RETURNS AT UP -EF North America - ALASKA - BP Operation Summary Report Page 27 of 30 Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 20:00 - 21:30 1.50 TA C PROD1 PRESSURE TEST CEMENT RETAINER PJSM CLOSE UPPER PIPE RAMS PRESSURE TEST RETAINER TO 250 -PSI LOW/ 3500 -PSI HIGH FOR 5 / 30 CHARTED MIN - 0 -PSI LOSS IN FIRST 15 MINUTES HOLDING PERIOD AND 0 -PSI LOSS IN SECOND 15 MINUTE HOLDING PERIOD GOOD TEST APPROVAL TO PROCEED BY WTL 21:30 23:00 1.50 TA C PROD1 SPOT 523' BALANCED CEMENT PLUG ON TOP OF CEMENT RETAINER BATCH UP CEMENT PUMP 20.0-BBLS 11.0 -PPG MUD PUSH II @ 4.0 -BPM @ 609 -PSI FINAL TREATING PRESSURE - PUMP 20.0-BBLS (96.53 SX) 15.8 -PPG CLASS G TAIL CEMENT (YIELD 1.16 CU. FT./SK.) @ 4.5 -BPM @ 300 -PSI - PUMP 8.OBBLS 11.0 -PPG MUD PUSH II @ 2.0 -BPM @ 30 -PSI - DISPLACE PLUG WITH 94.0-BBLS 8.7 -PPG POWER PRO MUD @5.5 -BPM @ 620 -PSI CLOSE FOSV AND R/D CEMENTERS FIELD PICK TOC - 10473' MD CEMENT ADDITIVES: D046 ANTIFOAM 0.200% BWOC D065 0.300% BWOC D167 0.450% BWOC D153 0.200% BWOC D177 0.010 GAL/SK 23:00 - 00:00 1.00 TA C PROD1 POOH WITH CEMENT STINGER - OPEN FOSV AND CONFIRM FLUID DROPPING WITH SMALL VACUUM ON DP BREAK OUT FOSV PULL 6 STANDS DRY TO 10,364' MD AT 5 MIN/STAN D - P/U 175K, S/O 140K 1/17/2014 0000 01:30 1.50 TA C PROD1 CIRCULATE ON TOP OF PLUG - BREAK CONNECTION AND DROP FOAM DP WIPER BALL PUMP 25.0 -BBL NUT PLUG SWEEP PUMP 360.0-BBLS SURFACE TO SURFACE 8.0 -BPM, 1190 -PSI PH INCREASE IN MUD PUSH RETURNS AT BTTMS UP BLOW DOWN CHOKE AND KILL LINES BLOW DOWN AND FLUSH CEMENT LINE AND MANIFOLD Printed 1/27/2014 12:47:57PM North America - ALASKA - BP Page 28 of 30 Operation Summary Report Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3-0124W-C:DRILL (11,224,421.00 ) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:00AM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 01:30 02:30 1.00 TA C PROD1 DISPLACE 8.7 -PPG POWERPRO WITH 9.4 -PPG NACL BRINE 340 GPM, 1250 PSI RECORD SLOW PUMP RATES WITH 9.4 -PPG NACL BRINE - FLOWCHECK WELL PRIOR TO PULLING OFF BOTTOM (STATIC) SPR'S: MP #1: 20 -SPM @ 92 -PSI, 30 -SPM @ 210 -PSI, 40 -SPM @ 360 -PSI MP #2: 20 -SPM @ 92 -PSI, 30 -SPM @ 212 -PSI, 40 -SPM @ 365 -PSI 10,364' MD, 8,010' TVD 02:30 03:00 0.50 TA C PROD1 SERVICE AND LUBRICATE RIG. 03:00 06:00 3.00 TA C PROD1 PULL OUT OF HOLE WITH CEMENTING ASSEMBLY ON ELEVATORS FROM 10364' MD TO 5620' MD, RACKING BACK 4" DRILLPIPE IN DERRICK (60 TOTAL STANDS TO BE LAID DOWN OFFLINE). MW IN/OUT = 9.4 PPG WELL TAKING CORRECT PIPE DISPLACEMENT - INITIAL PICKUP WEIGHT OFF BOTTOM = 155 KLBS. 06:00 11:30 5.50 TA C PROD1 PULL OUT OF HOLE WITH CEMENTING ASSEMBLY ON ELEVATORS FROM 5620' MD TO BHAAT 1446' MD, LAYIND DOWN 4" DRILLPIPE. - WELL TAKING CORRECT PIPE DISPLACEMENT 11:30 15:00 3.50 TA C PROD1 PULL OUT OF HOLE WITH CEMENTING ASSEMBLY ON ELEVATORS FROM BHAAT 1446' MD TO SURFACE, LAYING DOWN 3-1/2" DRILLPIPE CEMENT STINGER - HOLE PJSM FOR LAYING DOWN 3-1/2" PIPE AND FLOWCHECK WELL PRIOR TO PULLING BHA THROUGH STACK (STATIC). -WELL TAKING CORRECT DISPLACEMENT - LAYING DOWN WITH LIFT SUB BECAUSE OF UPSET ON 3-1/2" PIPE. 1500 1730 2.50 PXA C PROD1 PREPARE TO RUN TUBING - CLEAR AND CLEAN RIG FLOOR AFTER TRIPPING. REMOVE WEAR RING MAKE DUMMY RUN WITH 4-1/2", TC -II LANDING JOINT (LAND ON DEPTH AT 43' FROM ROTARY AND MARK PIPE) - MAKEUP SAFETY JOINT FOR TUBING AND RIG UP DOYON CASING TONGS. Common Well Name: Z-70 Event Type: DRL- ONSHORE (DON) North America - ALASKA - BP Operation Summary Report i Start Date: 12/20/2013 End Date: 1/19/2014 AFE No X3-0124W-C:DRILL (11,224,421.00) Page 29 of 30 Project: Prudhoe Bay Site: PB Z Pad 19:00 Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM 19:00 Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.1 Ousft (above Mean Sea Level) 1/19/2014 00:00 Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 17:30 - 00:00 6.50 PXA C PROD1 MAKEUP AND RUN IN HOLE WITH 99 JOINTS 4-1/2", 12.6#, L-80, NSCT, CONDITION B TUBING (KILL STRING) FROM SURFACE TO 4071' MD. MAKEUP FMC 11" X 4-1/2" TC -II (4" CIW TYPE H BPV PROFILE) TUBING HANGER. DRAIN STACK, RUN IN HOLE AND LAND KILL STRING AT PLANNED 4123' MD, 3380' TVD. FMC REPRESENTATIVE RUN IN LOCKDOWN SCREWS. MAKEUP TORQUE = 3975 FT -LBS APPLY JET LUBE SEAL GUARD (FRICTION FACTOR = 1.0) TO ALL CONNECTIONS PIPE DISPLACEMENTS CORRECT ON TRIP WLEG INSTALLED ON END OF KILL STRING - 4" CIW TYPE H TWC INSTALLED IN TUBING HANGER ON RIG FLOOR PRIOR TO LANDING HANGER. - FINAL PICKUP WEIGHT = 71 KLBS, SLACKOFF = 63 KLBS, PARKER 273 BLOCKS = 35 KLBS - EXCEL TALLY IS ATTACHED 1/18/2014 00:00 01:00 1.00 CASING C PROD1 LAYDOWN LANDING JOINTAND RIG DOWN DOYON CASING TONGS. 01 00 0400 3.00 WHSUR P PROD1 PRESSURE TEST TWC FROM ABOVE TO 250 PSI LOW AND 3500 PSI HIGH FOR FIVE MIN EACH. TEST TWC FROM BELOW TO 250 PSI LOW AND 3500 PSI HIGH FOR FIVE MIN EACH. -ALL PASSING TESTS, SEE ATTACHED CHART. 04:00 16.00 12.00 BOPSUR N WAIT 10,473.00 PROD1 WAIT ON WEATHER - PHASE 3 ROAD CONDITIONS FIELD -WIDE. WELL SECURE WITH TESTED TWC 16.00 19:00 3.00 19:00 00:00 5.00 04:00 4.00 1/19/2014 00:00 CREW CLEANING AND PERFORMING EQUIPMENT CHECKS AROUND RIG. - CONDITIONS REDUCED TO PHASE 1 AT 16:00 DRILL P PRO CHANGEOUT TOP DRIVE SAVER SUB BOPSUR P PROD1 NIPPLE DOWN FLOW NIPPLE, BOP STACK WHSUR P 04.00 - 0700 3.00 WHSUR P Printed 1/27/2014 12:47 57PM AND HIGH PRESSURE RISERS. SETBACK BOP STACK AND SECURE FOR RIG MOVE. SIMOPS: CLEAN AND BLOWDOWN PITS PROD1 NIPPLE UP 11" FLANGE X STUDDED TOP 4-1/16" 5K TUBING HEAD ADAPTER. FMC REPRESENTATIVE TEST TUBING HANGER SEALS TO 250 PSI LOW AND 5000 PSI HIGH FOR 5 MIN EACH (PASSING TESTS, SEE ATTACHED CHARTS). SIMOPS: LAYDOWN 4" DRILLPIPE WITH OFFLINE EQUIPMENT. PROD1 NIPPLE UP DOUBLE MASTER 4-1/8" GATE VALVE DRYHOLE TREE. PRESSURE TEST TREE WITH DIESEL TO 250 PSI LOW AND , 5000 PSI HIGH FOR FIVE MINUTES EACH (PASSING TESTS, SEE ATTACHED CHART). - SIMOPS: LAYDOWN 4" DRILLPIPE WITH OFFLINE EQUIPMENT. North America - ALASKA - BP Operation Summary Report Page 30 of 30 Common Well Name: Z-70 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00 ) Project: Prudhoe Bay Site: PB Z Pad Rig Name/No.: PARKER 273 Spud Date/Time: 12/23/2013 1:30:OOAM Rig Release: 1/19/2014 Rig Contractor: PARKER DRILLING CO. UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 07:00 - 10:00 3.00 WHSUR P PROD1 MI RU VALVE SHOP LUBRICATOR AND PRESSURE TEST TO 250 PSI LOW AND 3500 PSI HIGH FOR FIVE MIN EACH TO LEAKTIGHT CRITERIA (PASSING TESTS). PULL TWC. RDMO VALVE SHOP LUBRICATOR. - SIMOPS: LAYDOWN 4" DRILLPIPE WITH OFFLINE EQUIPMENT. 10:00 12:00 2.00 DRILL P PROD1 LAYDOWN REMAINING 4" DRILLPIPE WITH OFFLINE EQUIPMENT. 12:00 14:00 2.00 WHSUR P PROD1 FREEZE PROTECT TUBING AND IA WITH RIG FREEZE SYSTEM TO 2100' MD, 2005' TVD (185' MD BELOW BPERM AT 1915' MD). REVERSE IN 71 TOTAL BBLS 6.8 PPG 90 OF DIESEL; 2.5 BPM, 600 PSI. LINE UP IA TO U -TUBE WITH TUBING AND MONITOR FOR 20 MIN. - 32 BBLS DIESEL IN TUBING, 39 BBLS DIESEL IN IA. - WELL IS OVERBALANCED TO MAX ANTICIPATED BHP OF 3745 PSI (8.5 PPG EMW) AT 8745' TVDSS BY 143 PSI 14:00 17:00 3.00 WHSUR P PROD1 MIRU VALVE SHOP LUBRICATOR AND PRESSURE TEST TO 250 PSI LOW AND 3500 PSI HIGH FOR FIVE MIN EACH TO LEAKTIGHT CRITERIA (PASSING TESTS, SEE ATTACHED CHART). SET CIW 4" TYPE H BPV. PRESSURE TEST BPV FROM BELOW TO 250 PSI LOWAND 3500 PSI HIGH FOR FIVE MIN EACH (PASSING TESTS, SEE ATTACHED CHART). RDMO VALVE SHOP LUBRICATOR. 17:00 - 00:00 7.00 WHSUR P PROD1 CLEAN CELLAR AND SECURE TREE WITH PROPER ANNULUS EQUIPMENT. DOUBLE GATE VALVES REMAIN ON WORKING ANNULI. - SIMOPS: RIG CREW REMOVE EXISTING DEADMAN AND INSTALL NEW ROTATING DEADMAN DRILL LINE ANCHOR. WELLWORK TRANSFER PERMIT CLOSED OUT WITH PAD OPERATOR WELL HANDOVER COMPLETE WITH WELLS GROUP ALL TREE AND WELLHEAD VALVES CLOSED TO GAUGES FINAL T/l/O PRESSURE = 0/0/0 PSI END DON EVENT AND RELEASE PARKER 273 RIG AT 23:59 ON 1/19/2014. Z-70 TEMPORARILY ABANDONED. NEXTWELL= S -110B Printed 1/27/2014 12.47:57PM Z-70 Survey Geodetic Report (Def Survey) Schlumherger Report Date: January 21, 2014 - 03:34 PM Survey / DLS Computation: Minimum Curvature / Lubinski , Client: BP Vertical Section Azimuth: 300.220 " (True North) Field: Prudhoe Bay Unit - WOA Vertical Section Origin: 0.000 ft, 0.000 ft Structure / Slot: Z -PAD / Slot (SF) TVD Reference Datum: Rotary Table Well: Z-70 TVD Reference Elevation: 103.100 ft above MSL Borehole: Z-70 Seabed / Ground Elevation: 56.200 ft above MSL APIs: 500292350000 Magnetic Declination: 19.798 ° Survey Name: Z-70 Total Gravity Field Strength: 1001.9635mgn (9.80665 Based) Survey Date: January 13, 2014 Gravity Model: GARM Tort / AHD / DDI / ERD Ratio: 356.385 ° / 9142.003 ft 16.707 / 1.018 Total Magnetic Field Strength: 57622.89 nT Coordinate Reference System: NAD27 Alaska State Plane, Zone 04, US Feet Magnetic Dip Angle: 80.94 ° Location Let I Long: N 70° 17' 51.62360", W 149° 11' 26.97047" Declination Date: December 28, 2013 Location Grid N/E Y/X: N 5959100.100 ftUS, E 599920.930 ftUS Magnetic Declination Model: BGGM 2013 CRS Grid Convergence Angle: 0.7618 ° North Reference: True North Grid Scale Factor: 0.99991134 Total Con Mag NorthaTrue North: 0.0000 ° Version I Patch: 2.7.998.0 Total Cort Mag ->Grid North: 19.798' 46.90 0.00 Local Coord Referenced To: Well Head Comments MD Incl Azim True TVDSS TVD VSEC AHD Closure NS EW OLS Northing Easting Longitude Latitude (ft) 11 (1 (ft) (ft) (ft) (ft) (ft) (ft) (ft) (•/100ft) (ftus) MUS) (I ( ) RTE 0.00 0.00 0.00 -103.10 0.00 0.00 0.00 0.00 0.00 0.00 NIA 5959100.10 599920.93 70.29767322 -149.19082513 WRP 45.40 0.00 0.00 -57.70 45.40 0.00 0.00 0.00 0.00 0.00 0.00 5959100.10 599920.93 70.29767322 -149.19082513 46.90 0.00 0.00 -56.20 46.90 0.00 0.00 0.00 0.00 0.00 0.00 5959100.10 599920.93 70.29767322 -149.19082513 100.00 0.21 279.68 -3.10 100.00 0.09 0.10 0.10 0.02 -0.10 0.40 5959100.12 599920.83 70.29767327 -149.19082591 190.00 0.80 308.61 66.90 190.00 0.87 0.88 0.87 0.44 -0.75 0.69 5959100.53 599920.17 70.29767441 -149.19083120 251.00 0.19 333.75 147.89 250.99 1.37 1.40 1.38 0.79 -1.13 1.04 5959100.88 599919.79 70.29767539 -149.19083426 286.00 0.47 285.42 182.89 285.99 1.56 1.59 1.56 0.88 -1.29 1.06 5959100.97 599919.63 70.29767563 -149.19083558 314.00 0.56 249.44 210.89 313.99 1.76 1.84 1.76 0.87 -1.53 1.18 5959100.94 599919.39 70.29767559 -149.19083752 344.00 0.73 220.11 240.89 343.99 1.88 2.17 1.91 0.67 -1.79 1.22 5959100.74 599919.13 70.29767505 -149.19083963 375.00 1.89 191.74 271.88 374.98 1.75 2.86 2.02 0.02 -2.02 4.18 5959100.09 599918.91 70.29767327 -149.19084150 439.00 2.95 182.67 335.82 438.92 0.66 5.56 3.53 -2.56 -2.31 1.75 5959097.41 599918.65 70.29766595 -149.19084386 470.00 3.75 181.46 366.77 469.87 -0.20 7.37 5.06 -4.47 -2.38 2.59 5959095.60 599918.61 70.29766100 -149.19084437 565.00 4.84 181.49 461.50 564.60 -3.62 14.49 11.86 -11.58 -2.56 1.15 5959088.48 599918.53 70.29764157 -149.19084585 660.00 5.37 168.30 556.13 659.23 -8.52 22.90 20.02 -19.94 -1.76 1.35 5959080.14 599919.43 70.29761874 -149.19083940 754.75 8.35 170.32 650.19 753.29 -15.89 34.22 31.07 -31.07 0.29 3.15 5959069.04 599921.64 70.29758834 -149.19082275 812.00 9.20 177.52 706.77 809.87 -21.03 42.94 39.76 -39.74 1.19 2.42 5959060.38 599922.65 70.29756465 -149.19081548 869.63 9.55 182.46 763.63 866.73 -25.75 52.32 49.13 -49.12 1.19 1.52 5959051.00 599922.77 70.29753903 -149.19081553 927.60 10.41 182.87 820.72 923.82 -30.39 62.37 59.16 -59.16 0.72 1.49 5959040.96 599922.43 70.29751161 -149.19081933 964.74 10.61 185.75 857.24 960.34 -33.35 69.14 65.91 -65.91 0.21 1.51 5959034.21 599922.01 70.29749317 -149.19082346 1028.28 11.37 194.76 919.62 1022.72 -37.44 81.23 77.81 -77.79 -1.98 2.95 5959022.30 599919.99 70.29746072 -149.19084113 1059.04 12.65 196.99 949.71 1052.81 -39.02 87.63 84.02 -83.94 -3.73 4.43 5959016.13 599918.31 70.29744391 -149.19085535 1155.13 14.05 203.47 1043.20 1146.30 42.80 109.79 105.33 -104.70 -11.45 2.13 5958995.26 599910.87 70.29738718 -149.19091787 1188.72 15.20 210.58 1075.71 1178.81 -43.25 118.26 113.28 -112.24 -15.32 6.34 5958987.68 599907.11 70.29736660 -149.19094916 1222.06 17.57 213.19 1107.69 1210.79 -42.97 127.67 121.91 -120.21 -20.30 7.44 5958979.64 599902.24 70.29734482 -149.19098947 1249.59 19.03 216.17 1133.83 1236.93 -42.29 136.31 129.79 -127.31 -25.22 6.30 5958972.48 599897.41 70.29732542 -149.19102934 1344.91 21.13 226.74 1223.38 1326.48 -35.79 168.95 158.73 -151.64 -46.91 4.39 5958947.86 599876.04 70.29725895 -149.19120499 1435.26 21.56 236.28 1307.56 1410.66 -23.86 201.77 186.71 -172.02 -72.59 3.87 5958927.14 599850.64 70.29720327 -149.19141288 1507.00 22.59 244.28 1374.05 1477.15 -10.35 228.70 208.70 -185.32 -95.97 4.43 5958913.53 599827.44 70.29716693 -149.19160221 1534.59 22.97 244.36 1399.49 1502.59 -4.36 239.38 217.33 -189.95 -105.60 1.38 5958908.78 599817.67 70.29715428 -149.19168016 1628.35 23.49 246.57 1485.65 1588.75 16.98 276.36 248.06 -205.30 -139.24 1.08 5958892.99 599784.45 70.29711235 -149.19195254 1725.10 25.12 251.65 1573.83 1676.93 42.01 316.15 281.57 -219.44 -176.43 2.74 5958878.36 599747.45 70.29707374 -149.19225366 1819.01 27.34 260.09 1658.10 1761.20 71.70 357.60 315.53 -229.43 -216.61 4.62 5958867.83 599707.41 70.29704644 -149.19257901 1913.45 28.25 263.78 1741.65 1844.75 106.26 401.62 351.00 -235.58 -260.20 2.06 5958861.10 599663.91 70.29702962 -149.19293191 2009.49 31.17 269.27 1825.07 1928.17 145.88 449.19 389.20 -238.36 -307.66 4.15 5958857.69 599616.49 70.29702202 -149.19331624 2103.98 33.61 273.96 1904.66 2007.96 190.32 499.78 429.45 -236.87 -358.22 3.70 5958858.51 599565.92 70.29702610 -149.19372559 2198.68 36.46 274.25 1982.40 2085.50 239.13 554.14 473.69 -232.97 -412.44 3.01 5958861.69 599511.66 70.29703673 -149.19416460 2293.56 40.63 274.50 2056.59 2159.69 292.33 613.25 523.82 -228.46 -471.38 4.40 5958865.42 599452.68 70.29704906 -149.19464180 2388.66 43.35 274.96 2127.26 2230.36 349.76 676.87 579.49 -223.20 -534.77 2.88 5958869.83 599389.22 70.29706340 -149.19515513 2482.94 45.48 272.84 2194.61 2297.71 408.88 742.84 639.19 -218.74 -600.59 2.75 5958873.42 599323.35 70.29707558 -149.19568807 2578.16 47.73 273.92 2260.02 2363.12 470.61 812.02 703.22 -214.65 -669.66 2.50 5958876.59 599254.25 70.29708674 -149.19624726 2673.33 46.91 277.17 2324.55 2427.65 534.17 881.98 767.95 -207.90 -739.28 2.65 5958882.41 599184.55 70.29710515 -149.19681097 2767.01 49.60 278.95 2386.92 2490.02 598.90 951.87 832.38 -198.08 -808.47 3.20 ' 5958891.31 599115.24 70.29713196 -149.19737121 Drilling Office 2.7.998.0 Prudhoe Bay Unit - WOA\Z-PAD\Z-70\Z-70\Z-70 2/11/2014 3:26 PM Page 1 of 4 Comments MD Incl Azim True TVDSS TVD VSEC AHD Closure NS EW DLS Northing Easting Longitude Latitude (ft) 1°) f°I (R) (ft) (k) (k) Ik) Ift) fkl (°/I00k) Mus) (ftus) V) (°) 2862.30 50.69 280.07 2447.99 2551.09 667.32 1025.02 900.04 -185.99 -880.61 1.46 5958902.44 599042.95 70.29716497 -149.19795535 2957.31 50.18 279.75 2508.50 2611.60 736.01 1098.26 968.41 -173.38 -952.76 0.60 5958914.08 598970.65 70.29719938 -149.19853955 3052.30 50.97 282.78 2568.83 2671.93 805.40 1171.63 1036.97 -159.04 -1024.70 2.60 5958927.46 598898.52 70.29723854 -149.19912210 3147.61 50.43 282.67 2629.20 2732.30 875.74 1245.38 1105.90 -142.80 -1096.65 0.57 5958942.75 598826.38 70.29728289 -149.19970463 3242.28 49.84 285.43 2689.89 2792.99 945.51 1318.04 1173.82 -125.17 -1167.13 2.32 5958959.44 598755.68 70.29733103 -149.20027533 3338.08 49.15 285.38 2752.11 2855.21 1015.93 1390.88 1241.87 -105.82 -1237.35 0.72 5958977.85 598685.21 70.29738386 -149.20084396 3431.98 48.92 285.04 2813.67 2916.77 1084.42 1461.79 1308.68 -87.21 -1305.77 0.37 5958995.54 598616.55 70.29743465 -149.20139799 3526.93 48.16 284.78 2876.54 2979.64 1153.05 1532.94 1376.26 -68.90 -1374.53 0.83 5959012.93 598547.56 70.29748464 -149.20195477 3621.74 48.12 284.60 2939.81 3042.91 1221.08 1603.55 1443.74 -51.00 -1442.84 0.15 5959029.93 598479.03 70.29753352 -149.20250786 3700.45 47.51 284.53 2992.66 3095.76 1277.24 1661.88 1499.72 -36.33 -1499.28 0.78 5959043.84 598422.40 70.29757356 -149.20296495 9-SB' 3713.00 47.57 284.37 3001.14 3104.24 1286.15 1671.14 1508.63 -34.02 -1508.25 1.07 5959046.03 598413.40 70.29757987 -149.20303755 3868.63 48.35 282.38 3105.36 3208.46 1396.76 1786.71 1620.71 -7.30 -1620.69 1.07 5959071.25 598300.63 70.29765280 -149.20394804 3931.19 47.90 282.40 3147.12 3250.22 1441.11 1833.30 1666.19 2.69 -1666.19 0.72 5959080.64 598255.01 70.29768008 -149.20431645 4026.11 46.48 283.45 3211.62 3314.72 1507.59 1902.93 1734.15 18.26 -1734.06 1.70 5959095.31 598186.94 70.29772257 -149.20486602 4120.76 48.81 282.72 3275.38 3378.48 1574.42 1972.87 1802.50 34.09 -1802.18 2.53 5959110.22 598118.62 70.29776576 -149.20541767 4214.89 47.79 282.44 3338.00 3441.10 1641.40 2043.15 1871.43 49.40 -1870.77 1.11 5959124.62 598049.84 70.29780753 -149.20597310 4310.64 48.14 280.59 3402.12 3505.22 1708.75 2114.26 1941.49 63.59 -1940.45 1.48 5959137.88 597979.98 70.29784626 -149.20653735 4405.25 48.03 280.43 3465.32 3568.42 1775.03 2184.66 2011.13 76.43 -2009.67 0.17 5959149.80 597910.60 70.29788129 -149.20709787 4500.45 48.13 283.19 3528.93 3632.03 1842.23 2255.49 2080.99 90.93 -2079.00 2.16 5959163.37 597841.09 70.29792084 -149.20765924 _ 4594.80 48.19 284.32 3591.87 3694.97 1909.63 2325.79 2149.97 107.64 -2147.27 0.89 5959179.17 597772.61 70.29796645 -149.20821210 4688.15 49.97 286.12 3653.01 3756.11 1977.76 2396.32 2218.91 126.17 -2215.32 2.40 5959196.80 597704.33 70.29801702 _ -149.20876318 4726.18 50.32 288.02 3677.38 3780.48 2006.19 2425.51 2247.27 134.74 -2243.23 3.94 5959204.99 597676.31 70.29804041 -149.20898915 4758.21 50.00 289.10 3697.90 3801.00 2030.28 2450.10 2271.02 142.57 -2266.54 2.78 5959212.51 597652.90 70.29806177 -149.20917796 4785.85 49.61 291.61 3715.74 3818.84 2051.07 2471.22 2291.25 149.91 -2286.34 7.08 5959219.59 597633.01 70.29808181 -149.20933823 4880.02 49.66 291.74 3776.73 3879.83 2122.03 2542.97 2359.62 176.41 -2353.01 0.12 5959245.20 597565.99 70.29815416 -149.20987821 4975.20 48.89 291.98 3838.83 3941.93 2193.39 2615.10 2428.48 203.27 -2419.96 0.83 5959271.16 597498.70 70.29822747 -149.21042036 5007.29 48.78 291.67 3859.95 3963.05 2217.29 2639.26 2451.59 212.25 -2442.39 0.80 5959279.84 597476.16 70.29825198 -149.21060198 5040.72 49.02 292.61 3881.93 3985.03 2242.23 2664.45 2475.67 221.74 -2465.72 2.24 5959289.02 597452.70 70.29827790 -149.21079094 5070.36 49.49 295.74 3901.28 4004.38 2264.56 2686.90 2496.90 230.94 -2486.20 8.16 5959297.94 597432.11 70.29630301 -149.21095681 5164.68 49.86 295.40 3962.32 4065.42 2336.23 2758.81 2564.48 261.97 -2551.07 0.48 5959328.11 597366.84 70.29838773 -149.21148213 5259.71 50.06 295.45 4023.45 4126.55 2408.73 2831.56 2633.15 293.21 -2616.77 0.21 5959358.47 597300.73 70.29847301 -149.21201428 5354.61 49.91 299.29 4084.48 4187.58 2481.30 2904.23 2701.12 326.61 -2681.30 3.10 5959391.01 597235.77 70.29856419 -149.21253686 5449.64 50.76 300.30 4145.14 4248.24 2554.45 2977.39 2768.67 362.96 -2744.78 1.21 5959426.51 597171.82 70.29866344 -149.21305099 5545.27 50.67 297.82 4205.70 4308.80 2628.44 3051.40 2837.65 398.91 -2809.47 2.01 5959461.59 597106.66 70.29876158 -149.21357493 5639.53 50.04 297.55 4265.84 4368.94 2700.95 3123.98 2906.12 432.63 -2873.74 0.70 5959494.45 597041.95 70.29885364 -149.21409547 5733.10 49.98 294.94 4325.98 4429.08 2772.45 3195.66 2974.49 464.33 -2938.03 2.14 5959525.29 596977.25 70.29894017 -149.21461616 5827.69 49.49 293.29 4387.12 4490.22 2844.22 3267.84 3044.22 493.82 -3003.90 1.43 5959553.90 596911.00 70.29902067 -149.21514967 5921.99 48.55 293.01 4448.96 4552.06 2914.87 3339.03 3113.40 521.81 -3069.36 1.02 5959581.01 596845.19 70.29909706 -149.21567981 6017.35 49.11 292.53 4511.73 4614.83 2986.04 3410.81 3183.35 549.59 -3135.55 0.70 5959607.91 596778.64 70.29917288 -149.21621588 6112.09 49.09 291.28 4573.76 4676.86 3056.90 3482.42 3253.43 576.31 -3201.98 1.00 5959633.73 596711.86 70.29924578 -149.21675396 6207.76 48.13 291.96 4637.02 4740.12 3127.86 3554.19 3323.82 602.75 -3268.71 1.14 5959659.28 596644.79 70.29931794 -149.21729437 6303.12 50.36 294.16 4699.27 4802.37 3199.53 3626.42 3394.33 631.06 -3335.15 2.92 5959686.71 596577.99 70.29939521 -149.21783251 6397.39 51.18 293.82 4758.89 4861.99 3272.12 3699.44 3465.44 660.75 -3401.86 0.91 5959715.50 596510.89 70.29947623 -149.21837286 6492.47 51.59 293.10 4818.23 4921.33 3345.89 3773.73 3538.01 690.32 -3470.01 0.73 5959744.17 596442.36 70.29955694 -149.21892484 -^ 6587.62 50.77 293.84 4877.88 4980.98 3419.51 3847.87 3610.50 719.84 -3538.01 1.05 5959772.78 596373.98 70.29963750 -149.2194756( ' 6682.10 49.19 293.48 4938.63 5041.73 3491.39 3920.22 3681.26 748.88 -3604.28 1.70 5959800.93 596307.34 70.29971675 -149.22001236 6777.60 48.87 294.70 5001.25 5104.35 3563.08 3992.33 3751.73 778.31 -3670.11 1.02 5959829.48 596241.13 70.29979706 -149.22054553 6873.03 48.29 293.34 5064.38 5167.48 3634.22 4063.88 3821.74 807.44 -3735.47 1.23 5959857.74 596175.40 70.29987656 -149.22107492 6967.75 49.24 293.24 5126.82 5229.92 3704.93 4135.11 3891.66 835.60 -3800.89 1.01 5959885.02 596109.61 70.29995341 -149.22160486 7062.87 48.67 292.03 5189.28 5292.38 3776.04 4206.85 3962.28 863.22 -3867.10 1.13 5959911.75 596043.04 70.30002875 -149.22214114 7157.14 50.02 292.69 5250.69 5353.79 3846.88 4278.37 4032.77 890.43 -3933.24 1.53 5959938.08 595976.56 70.30010299 -149.22267683 7251.75 49.10 294.21 5312.06 5415.16 3918.38 4350.37 4103.54 919.07 -3999.30 1.56 5959965.84 595910.13 70.30018115 -149.22321189 7346.82 48.93 294.04 5374.42 5477.52 3989.74 4422.14 4173.97 948.41 -4064.80 0.22 5959994.30 595844.25 70.30026119 -149.22374243 7441.59 48.52 293.30 5436.94 5540.04 4060.50 4493.36 4244.01 977.00 -4130.03 0.73 5960022.02 595778.65 70.30033922 -149.22427081 7537.06 48.51 296.11 5500.18 5603.28 4131.67 4564.88 4314.13 1006.89 -4194.99 2.20 5960051.04 595713.31 70.30042076 -149.22479701 7631.05 49.69 296.65 5561.72 5664.82 4202.56 4635.92 4383.41 1038.45 -4258.63 1.33 5960081.75 595649.26 70.30050691 -149.22531254 7725.85 49.75 296.62 5623.01 5726.11 4274.74 4708.24 4453.93 1070.88 -4323.28 0.07 5960113.31 595584.19 70.30059538 -149.22583622 7820.33 49.68 295.68 5684.10 5787.20 4346.63 4780.31 4524.39 1102.64 -4387.97 0.76 5960144.21 595519.08 70.30068206 -149.22636028 7915.82 49.45 295.65 5746.04 5849.14 4419.08 4852.99 4595.62 1134.12 -4453.48 0.24 5960174.81 595453.17 70.30076795 -149.22689096 8008.82 49.48 295.22 5806.48 5909.58 4489.51 4923.67 4664.99 1164.48 -4517.31 0.35 5960204.31 595388.94 70.30085078 -149.22740803 8105.19 49.02 294.31 5869.39 5972.49 4562.19 4996.68 4736.83 1195.06 -4583.60 0.86 5960234.01 595322.26 70.30093422 -149.22794502 8200.75 46.65 294.15 5933.53 6036.63 4632.63 5067.50 4806.68 1224.13 -4648.19 2.48 5960262.21 595257.30 70.30101352 -149.22846820 8295.50 44.24 293.58 6000.00 6103.10 4699.72 5135.02 4873.35 1251.45 -4709.92 2.58 5960288.71 595195.21 70.30108805 -149.22896831 8391.32 40.92 292.10 6070.55 6173.65 4764.01 5199.84 4937.55 1276.63 -0769.65 3.62 5960313.09 595135.16 70.30115675 -149.22945214 8487.10 38.73 291.42 6144.10 6247.20 4824.68 5261.18 4998.46 1299.38 -4826.62 2.33 5960335.08 595077.90 70.30121880 -149.22991358 8580.75 37.29 294.18 6217.89 6320.99 4881.85 5318.84 5055.60 1321.70 -4879.78 2.38 5960356.69 595024.46 70.30127969 -149.23034421 Drilling Office 2.7.998.0 Prudhoe Bay Unit - WOA\Z-PAD2-70\Z-70\Z-70 2/11/2014 3:26 PM Page 2 of 4 Comments MD Incl Azim True TVDSS TVD VSEC AHD Closure NS EW DLS Northing Easting Longitude Latitude. (ft) (°) V) (ft) (ft) (ft) (ft) (ft) (ft) (ft) (°I100ft) (ftuS) (ftuS) 8674.88 34.25 295.83 6294.26 - 6397.36 4936.63 5373.85 5109.81 1344.93 -4929.64 3.39 5960379.25 594974.29 70.30134305 -149.23074819 8768.71 31.97 291.16 6372.86 6475.96 4987.50 5425.08 5160.50 1365.41 -4976.59 3.64 5960399.10 594927.08 70.30139891 -149.23112849 8864.91 29.18 289.50 6455.68 6556.78 5035.71 5474.01 5209.24 1382.43 -5022.45 3.03 5960415.51 594881.00 70.30144534 -149.23150004 8957.46 26.64 293.29 6537.46 6640.56 5078.48 5517.31 5252.31 1398.17 -5062.79 3.35 5960430.71 594840.46 70.30148826 -149.23182678 9053.64 25.45 297.13 6623.88 6726.98 5120.53 5559.53 5293.91 1416.12 -5100.99 2.15 5960448.15 594802.02 70.30153723 -149.23213626 9148.07 24.75 295.47 6709.40 6812.50 5160.49 5599.58 5333.26 1433.87 -5136.90 1.05 5960465.42 594765.89 70.30158566 -149.23242713 9242.12 24.79 300.15 6794.80 6897.90 5199.83 5638.97 5371.75 1452.25 -5171.72 2.08 5960483.33 594730.83 70.30163579 -149.23270929 9338.40 24.23 299.06 6882.40 6985.50 5239.77 5678.91 5410.53 1471.98 -5206.45 0.75 5960502.60 594695.85 70.30168964 -149.23299062 9431.63 23.11 298.12 6967.79 7070.89 5277.18 5716.34 5447.03 1489.90 -5239.31 1.27 5960520.08 594662.75 70.30173852 -149.23325685 9528.52 22.50 297.50 7057.11 7160.21 5314.70 5753.89 5483.78 1507.42 -5272.52 0.68 5960537.15 594629.31 70.30178633 -149.23352594 9623.33 21.73 295.89 7144.94 7248.04 5350.32 5789.58 5518.84 1523.46 -5304.40 1.03 5960552.77 594597.22 70.30183009 -149.23378424 9718.56 21.81 300.23 7233.39 7336.49 5385.59 5824.89 5553.37 1540.06 -5335.55 1.69 5960568.96 594565.86 70.30187539 -149.23403658 9812.84 22.45 300.62 7320.72 7423.82 5421.11 5860.40 5587.79 1558.05 -5366.17 0.70 5960586.53 594535.00 70.30192447 -149.23428470 9908.35 21.69 299.64 7409.23 7512.33 5456.99 5896.29 5622.62 1576.07 -5397.21 0.88 5960604.13 594503.73 70.30197363 -149.23453615 10000.73 21.16 300.10 7495.23 7598.33 5490.74 5930.03 5655.42 1592.87 -5426.47 0.60 5960620.55 594474.25 70.30201948 -149.23477324 10097.37 22.60 303.42 7584.91 7688.01 5526.72 5966.04 5690.13 1611.85 -5457.06 1.96 5960639.11 594443.42 70.30207127 -149.23502111 10191.74 22.19 302.68 7672.16 7775.26 5562.63 6001.99 5724.60 1631.46 -5487.20 0.53 5960658.32 594413.03 70.30212478 -149.23526528 10286.12 21.09 300.92 7759.89 7862.99 5597.42 6036.79 5758.18 1649.81 -5516.77 1.35 5960676.27 594383.22 70.30217485 -149.23550487 10381.72 22.17 300.89 7848.75 7951.85 5632.65 6072.03 5792.34 1667.91 -5547.00 1.13 5960693.96 594352.75 70.30222423 -149.23574985 10476.56 23.02 301.84 7936.31 8039.41 5669.08 6108.47 5827.60 1686.88 -5578.11 0.98 5960712.52 594321.39 70.30227599 -149.23600193 10571.78 21.83 301.90 8024.33 8127.43 5705.39 6144.79 5862.68 1706.06 -5608.96 1.25 5960731.28 594290.29 70.30232832 -149.23625188 10666.40 22.79 300.57 8111.87 8214.97 5741.30 6180.71 5897.49 1724.67 -5639.68 1.15 5960749.49 594259.34 70.30237912 -149.23650075 10761.56 23.18 301.60 8199.47 8302.57 5778.46 6217.87 5933.54 1743.86 -5671.50 0.59 5960768.25 594227.27 70.30243147 -149.23675858 10855.75 24.60 303.19 8285.59 8388.69 5816.57 6256.01 5970.33 1764.31 -5703.69 1.66 5960788.26 594194.80 70.30248727 -149.23701947 10950.46 22.48 302.14 8372.42 8475.52 5854.36 6293.84 6006.79 1784.73 -5735.53 2.28 5960808.26 594162.70 70.30254300 -149.23727741 11016.19 23.86 301.43 8432.84 8535.94 5880.21 6319.70 6031.83 1798.35 -5757.51 2.14 5960821.59 594140.54 70.30258016 -149.23745555 7- 11091.00 25.43 302.38 8500.84 8603.94 5911.39 6350.89 6062.03 1814.84 -5783.99 2.16 5960837.72 594113.85 70.30262516 -149.23767008 11119.79 26.03 302.72 8526.77 8629.87 5923.87 6363.39 6074.09 1821.57 -5794.52 2.16 5960844.31 594103.23 70.30264351 -149.23775543 11148.15 28.40 305.15 8551.99 8655.09 5936.81 6376.35 6086.52 1828.82 -5805.27 9.23 5960851.41 594092.38 70.30266329 -149.23784256 11180.83 32.11 307.17 8580.22 8683.32 5953.18 6392.81 6102.11 1838.54 -5818.55 11.77 5960860.96 594078.98 70.30268983 -149.23795018 11212.51 35.42 307.03 8606.55 8709.65 5970.66 6410.42 6118.70 1849.16 -5832.59 10.45 5960871.39 594064.80 70.30271881 -149.23806397 11243.43 38.12 306.28 8631.32 8734.42 5989.05 6428.93 6136.20 1860.21 -5847.44 8.85 5960882.23 594049.80 70.30274895 -149.23818431 11274.40 42.00 305.40 8655.02 8758.12 6008.88 6448.85 6155.14 1871.87 -5863.60 12.66 5960893.68 594033.49 70.30278078 -149.23831525 11305.86 45.61 305.35 8677.72 8780.82 6030.57 6470.63 6175.89 1884.47 -5881.36 11.48 5960906.05 594015.57 70.30281518 -149.23845912 11337.42 49.60 306.63 8698.99 8802.09 6053.75 6493.93 6198.02 1898.17 -5900.20 12.99 5960919.49 593996.55 70.30285256 -149.23861187 11370.67 54.05 306.37 8719.54 8822.64 6079.73 6520.06 6222.79 1913.72 -5921.21 13.40 5960934.75 593975.34 70.30289498 -149.23878211 11402.66 58.04 308.52 8737.40 8840.50 6106.04 6546.59 6247.79 1929.85 -5942.27 13.66 5960950.61 593954.07 70.30293902 -149.23895273 11433.45 61.10 310.65 8753.00 8856.10 6132.23 6573.14 6272.47 1946.77 -5962.72 11.59 5960967.25 593933.40 70.30298520 -149.23911848 11465.18 63.88 312.05 8767.65 8870.75 6159.84 6601.27 6298.33 1965.37 -5983.84 9.60 5960985.56 593912.04 70.30303595 -149.23928966 11496.81 66.80 313.78 8780.85 8883.95 6187.88 6630.02 6324.44 1984.94 -6004.88 10.48 5961004.85 593890.73 70.30308938 -149.23946024 11527.67 70.05 315.59 8792.20 8895.30 6215.66 6658.71 6350.16 2005.12 -6025.28 11.86 5961024.76 593870.07 70.30314447 -149.23962556 11559.28 72.09 316.93 8802.45 8905.55 6244.39 6688.61 6376.61 2026.72 -6045.95 7.60 5961046.08 593849.12 70.30320344 -149.23979311 11590.55 72.51 317.03 8811.96 8915.06 6272.92 6718.40 6402.81 2048.50 -6066.27 1.38 5961067.59 593828.51 70.30326289 -149.23995786 11623.65 74.04 317.42 8821.48 8924.58 6303.23 6750.10 6430.67 2071.77 -6087.80 4.76 5961090.57 593806.68 70.30332641 -149.24013237 11655.70 76.27 317.05 8829.69 8932.79 6332.85 6781.08 6457.93 2094.51 -6108.83 7.05 5961113.02 593785.34 70.30338849 -149.24030289 11687.51 78.39 316.21 8836.67 8939.77 6362.62 6812.11 6485.42 2117.07 -6130.15 7.15 5961135.30 593763.74 70.30345007 -149.24047564 11717.23 80.71 314.88 8842.06 8945.16 6390.81 6841.33 6511.59 2137.93 -6150.61 8.96 5961155.88 593743.00 70.30350702 -149.24064156 11749.85 83.51 313.79 8846.54 8949.64 6422.14 6873.64 6540.84 2160.51 -6173.72 9.20 5961178.14 593719.59 70.30356864 -149.24082888 11781.72 84.83 314.98 8849.78 8952.88 6452.88 6905.35 6569.57 2182.68 -6196.38 5.56 5961200.02 593696.64 70.30362918 -149.24101254 11814.00 86.72 314.04 8852.15 8955.25 6484.07 6937.54 6598.73 2205.25 -6219.34 6.54 5961222.27 593673.39 70.30369077 -149.24119863 11845.23 88.47 315.23 8853.46 8956.56 6514.29 6968.74 6627.00 2227.17 -6241.54 6.77 5961243.90 593650.90 70.30375061 -149.24137860 11877.35 90.18 315.99 8853.84 8956.94 6545.26 7000.86 6655.89 2250.12 -6264.00 5.83 5961266.54 593628.13 70.30381326 -149.24156072 11908.04 90.54 316.16 8853.65 8956.75 6574.78 7031.54 6683.41 2272.23 -6285.29 1.30 5961288.36 593606.55 70.30387360 -149.24173331 12002.11 90.45 314.60 8852.84 8955.94 6665.57 7125.61 6768.43 2339.18 -6351.36 1.66 5961354.42 593539.60 70.30405635 -149.24226891 12067.18 90.42 317.86 8852.34 8955.44 6728.10 7190.68 6826.96 2386.16 -6396.37 5.01 5961400.80 593493.98 70.30418460 -149.24263376 12096.34 91.04 319.07 8851.97 8955.07 6755.80 7219.84 6852.71 2407.99 -6415.70 4.66 5961422.36 593474.36 70.30424418 -149.24279051 12132.64 91.32 322.09 8851.22 8954.32 6789.82 7256.13 6884.16 2436.02 -6438.75 8.35 5961450.08 593450.95 70.30432071 -149.24297735 12164.32 91.37 324.80 8850.48 8953.58 6818.92 7287.80 6910.82 2461.46 -6457.61 8.55 5961475.27 593431.75 70.30439016 -149.24313030 12192.06 92.48 325.79 8849.55 8952.65 6844.03 7315.52 6933.71 2484.25 -6473.39 5.36 5961497.84 593415.67 70.30445239 -149.24325831 12228.37 94.20 326.34 8847.43 8950.53 6876.65 7351.77 6963.41 2514.32 -6493.63 4.97 5961527.64 593395.04 70.30453450 -149.24342242 12260.01 95.43 327.17 8844.78 8947.86 6904.86 7383.30 6989.07 2540.69 -6510.91 4.68 5961553.77 593377.41 70.30460649 -149.24356260 12287.08 96.69 326.51 8841.92 8945.02 6928.92 7410.22 7010.99 2563.22 -6525.64 5.25 5961576.11 593362.39 70.30466802 -149.24368202 12323.81 99.31 327.51 8836.81 8939.91 6961.39 7446.59 7040.61 2593.73 -6545.44 7.63 5961606.34 593342.18 70.30475131 -149.24384264 12354.59 100.77 328.75 8831.44 8934.54 6988.17 7476.89 7064.99 2619.47 -6561.44 6.18 5961631.87 593325.84 70.30482158 -149.24397244 12382.45 102.21 328.90 8825.89 8928.99 7012.14 7504.20 7086.80 2642.82 -6575.57 5.20 5961655.03 593311.40 70.30488536 -149.24408708 12477.77 102.75 329.35 8805.29 8908.39 7093.61 7597.26 7161.12 2722.70 -6623.33 0.73 5961734.26 593262.59 70.30510347 -149.24447450 Drilling Office 2.7.998.0 Prudhoe Bay Unit - WOA\Z-PAD\Z-70\Z-70\Z-70 2/11/2014 3:26 PM Page 3 of 4 Comments MD Ind Azim True TVDSS TVD VSEC AHD Closure NS EW DLS Northing Easting Longitude Latitude' (ft) V) (°) (ft) (ft) (ft) Ift) (ft) (ft) (ft) V/10(tft) MUS) (ftuS) 1°I 11 12513.01 101.83 327.15 8797.79 8900.89 7124.00 7631.69 7189.04 2751.98 -6641.45 6.63 5961763.29 593244.08 70.30518341 -149.24462146 12572.17 102.44 325.40 8785.35 8888.45 7175.96 7689.53 7237.19 2800.08 -6673.56 3.07 5961810.96 593211.34 70.30531474 -149.24488190 12604.34 101.71 326.51 8778.62 8881.72 7204.30 7720.99 7263.53 2826.15 -6691.17 4.07 5961836.79 593193.38 70.30538591 -149.24502474 12635.78 100.80 326.96 8772.49 8875.59 7231.89 7751.83 7289.16 2851.93 -6708.09 3.22 5961862.34 593176.13 70.30545631 -149.24516193 12666.36 99.51 329.77 8767.10 8870.20 7258.43 7781.93 7313.74 2877.56 -6723.87 9.98 5961887.75 593160.01 70.30552627 -149.24528997 12699.78 97.07 331.50 8762.28 8865.38 7286.94 7814.99 7340.01 2906.37 -6740.08 8.92 5961916.35 593143.41 70.30560497 -149.24542152 12730.85 94.68 332.91 8759.10 8862.20 7313.15 7845.90 7364.09 2933.71 -6754.49 8.92 5961943.49 593128.64 70.30567962 -149.24553844 12763.21 93.25 335.63 8756.86 8859.96 7339.90 7878.18 7388.56 2962.79 -6768.51 9.48 5961972.38 593114.25 70.30575902 -149.24565216 12795.71 91.36 337.07 8755.55 8858.65 7366.12 7910.65 7412.45 2992.54 -6781.53 7.31 5962001.94 593100.83 70.30584025 -149.24575789 12827.38 92.03 336.80 8754.61 8857.71 7391.50 7942.31 7435.59 3021.66 -6793.93 2.28 5962030.90 593088.04 70.30591979 -149.24585856 12859.65 93.85 337.14 8752.96 8856.06 7417.32 7974.53 7459.19 3051.32 -6806.54 5.74 5962060.38 593075.04 70.30600078 -149.24596090 12889.67 95.51 339.61 8750.51 8853.61 7440.85 8004.45 7480.66 3079.13 -6817.57 9.89 5962088.04 593063.65 70.30607673 -149.24605042 12921.44 95.34 341.35 8747.51 8850.61 7464.98 8036.08 7502.59 3108.94 -6828.14 5.48 5962117.71 593052.69 70.30615814 -149.24613624 12952.85 90.85 343.57 8745.81 8848.91 7488.19 8067.44 7523.62 3138.84 -6837.58 15.94 5962147.47 593042.84 70.30623979 -149.24621300 12983.94 86.99 346.00 8746.40 8849.50 7510.33 8098.52 7543.58 3168.82 -6845.74 14.67 5962177.34 593034.29 70.30632169 -149.24627929 13015.67 84.10 345.79 8748.86 8851.96 7532.44 8130.15 7563.50 3199.50 -6853.45 9.13 5962207.91 593026.17 70.30640548 -149.24634195 13046.80 81.23 343.53 8752.84 8855.94 7554.47 6161.02 7583.53 3229.27 -6861.61 11.70 5962237.57 593017.61 70.30648679 -149.24640831 13078.41 79.91 344.90 8758.01 8861.11 7576.91 8192.20 7604.02 3259.28 -6870.10 5.98 5962267.46 593008.73 70.30656874 -149.24647725 13110.11 81.28 344.70 8763.19 8866.29 7599.18 8223.47 7624.40 3289.45 -6878.29 4.37 5962297.52 593000.14 70.30665117 -149.24654390 13141.66 82.77 346.27 8767.57 8870.67 7621.17 8254.72 7644.55 3319.70 -6886.12 6.83 5962327.66 592991.90 70.30673378 -149.24660755 13173.54 83.10 345.52 8771.49 8874.59 7643.28 8286.36 7664.86 3350.38 -6693.83 2.55 5962358.23 592983.79 70.30681759 -149.24667023 13236.64 82.30 345.54 8779.51 8882.61 7687.29 8348.94 7705.56 3410.99 -6909.47 1.27 5962418.62 592967.35 70.30698311 -149.24679737 13331.62 81.65 344.63 8792.77 8895.87 7753.95 8442.99 7767.82 3501.87 -6933.68 1.17 5962509.16 592941.94 70.30723132 -149.24699414 13426.02 82.84 343.27 8805.51 8908.61 7821.54 8536.53 7831.72 3591.75 -6959.54 1.90 5962598.69 592914.88 70.30747682 -149.24720431 13521.80 83.03 340.18 8817.29 8920.39 7892.72 8631.58 7899.88 3682.00 -6989.34 3.21 5962688.52 592883.89 70.30772329 -149.24744643 13616.22 83.02 336.66 8828.76 8931.86 7966.36 8725.30 7971.22 3769.14 -7023.81 3.70 5962775.19 592848.27 70.30796126 -149.24772629 13711.68 83.99 336.71 8839.56 8942.66 8042.63 8820.15 8045.70 3856.24 -7061.35 1.02 5962861.77 592809.58 70.30819912 -149.24803106 13805.69 83.50 336.27 8849.80 8952.90 8117.98 8913.60 8119.69 3941.93 -7098.63 0.70 5962946.95 592771.17 70.30843313 -149.24833372 13900.58 82.44 336.34 8861.42 8964.52 8194.08 9007.77 8194.84 4028.17 -7136.47 1.12 5963032.67 592732.18 70.30866862 -149.24864098 13995.91 82.38 338.93 8874.01 8977.11 8269.13 9102.27 8269.30 4115.55 -7172.42 2.69 5963119.56 592695.08 70.30890724 -149.24893293 ° 14036.00 82.38 338.93 8879.33 8982.43 8300.14 9142.00 8300.19 4152.63 -7186.71 0.00 5963156.44 592680.30 70.30900850 -149.24904895 Survey Error Model: ISCWSA Rev 0 °°° 3-D 95.000% Confidence 2.7955 sigma Survey Program: Description Part MD From MD To EOU Freq Hole Size Casing Diameter Survey Tool Borehole / (ft) (ft) (ft) (in) (in) Type Survey 1 0.000 812.000 Act Stns 12.250 9.625 GYD-GC-SS Z-70 / Z-70 1 869.630 1435.260 Act Stns 12.250 9.625 MWD+IFR+MS Z-70 / Z-70 1 1507.000 1507.000 Act Sins 12.250 9.625 GYD-GC-SS Z-70 / Z-70 1 1534.590 3700.450 Act Sins 12.250 9.625 MWD+IFR+MS Z-70 / Z-70 1 3868.630 11016.190 Act Stns 8.750 7.000 MWD+IFR+MS Z-70 / Z-70 1 11119.790 13995.910 Act Sins 6.125 4.500 MWD+IFR+MS Z-70 / Z-70 1 14036.000 14036.000 Act Stns 6.125 4.500 BLIND Z-70 / Z-70 Legal Description:_ Northing (Y) Easting (X) Surface 4293.6 FSL 2756.7 FEL S19 T11N R12E UM 5959100.100 599920.930 BHL: 3163 FSL 4991 FEL 13 T11N R11 ELM "� 5963156.440 592680.300 SLB DE: Client Representative: Date: Drilling Office 2.7.998.0 Prudhoe Bay Unit - WOA2-PAD\Z-70)Z-70\Z-70 2/11/2014 3:26 PM Page 4 of 4 Final Definitive Survey Verified and Signed -off Alt targets and/or well position objectives have been achieved. D Yes ❑ No I have checked to the best of my ability that the following data is correct: Surface Coordinates O Declination & Convergence GRS Survey Corrections p Survey Tool Codes SLB DE: Client Representative: Date: Drilling Office 2.7.998.0 Prudhoe Bay Unit - WOA2-PAD\Z-70)Z-70\Z-70 2/11/2014 3:26 PM Page 4 of 4 Printed 1/28/2014 8:48:38AM North America -ALASKA - BP Page 1 of 3 Cementing Report Common Well Name: Z-70 / OH Report no.: 1 D Report date: 12/29/2013 Project: Prudhoe Bay Site: PB Z Pad Spud Date/Time: 12/23/2013 Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 AFE No.: Contractor: PARKER DRILLING CO. Rig Name/No.: PARKER 273 Rig Release: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00 ) UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) General Information Job type: Primary Cement job start date/time: 12/29/2013 11:OOAM Job end date/time: 12/29/2013 3:31 PM Cement Company: SCHLUMBERGER Cementer: JOHN MORRISON Cemented String: SURFACE CASING String Size: 9.625 (in) String Set TMD: 3,794.16 (usft) Hole Size: 9.625 (in) Pipe Movement Pipe Movement: RECIPROCATING Rotating Time (Start -End): RPM: Rotating Torque (init/avg/max): (ftdbf) Reciprocating Time (Start -End): 7:00:00 am 1:29:00 pm Recip Drag Up/Down: 216.0 - 111.0 (kip) SPM: 0.50 (spm) Stroke Length: 20.00 (usft) Fluid Name: SPACER Fluids (1 of 3) Slurry Type: SPACER Purpose: SPACER Class: SPACER Description: SPACER WEIGHTED Density: 10.00 (ppg) Yield: Mix Water Ratio: Excess: Mix Method: BATCH Sacks Used: Water Volume: 98.0 (bbl) Excess Slurry Volume: 0.0 (bbl) Density Measured by: PRESS. BAL Other Volume: Total Vol in Well: 100.0 (bbl) Slurry Volume: 100.0 (bbl) Excess Measured From: EST. GAUGE HOLE Mud Type: Density: 9.10 (ppg) PV: 17.00 (cp) YP: 55.000 (Ibf/100W) Viscosity: 0.00 (s/qt) Gels 10 Sec: 55.000 (Ibf/100W) Gels 10 Min: 59.000 (Ibf/100W) Fluid Name: CEMENT Fluids (2 of 3) Slurry Type: CEMENT Purpose: PRIMARY Class: LITE Description: LEAD SLURRY Density: 11.00 (ppg) Yield: 1.9100 (ft'/sk) Mix Water Ratio: 6.829 (gal/sk94) Excess: 500.00(%) Mix Method: ON -THE -FLY Sacks Used: 2,105.00 (941b sacks) Water Volume: 342.3 (bbl) Excess Slurry Volume: 3,581.0 (bbl) Density Measured by: DENSOMETER Other Volume: Total Vol in Well: 374.8 (bbl) Slurry Volume: 716.2 (bbl) Excess Measured From: EST. GAUGE HOLE Mud Type: Density: 9.10 (ppg) PV: 17.00 (cp) YP: 55.000 (Ibf/100ft') Viscosity: 0.00 (s/qt) Gels 10 Sec: 55.000 (Ibf/100W) Gels 10 Min: 59.000 (Ibf/100ft2) Additives Name Type Amount Units Concentration Unit DO46 ANTIFOAM 0.200 % BWOC D185 DISPERSANT 0.050 GAUSX D177 RETARDER 0.030 GAUSX Printed 1/28/2014 8:48:38AM North America - ALAS KA - BP Page 2 of 3 Cementing Report Common We -1 I Name: Z-70 / OH Report no -.:l D Re ort date: 12/29/2013 Project: Prudhoe Bay Site: PB Z Pad Spud Date/Time: 12/23/2013 Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 AFE No.: Contractor: PARKER DRILLING CO. Rig Name/No.: PARKER 273 Rig Release: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00) UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Fluid Tests Thick time Thick Free water Free water Fluid loss Fluid loss Fluid loss Comp Comp Comp Comp Comp Strength Comp Strength (hr) temp. M temp. (cc/30min) temp. press. Strength Strength Strength Strength Time Pressure 2 Temperature 2 (°F) (°F) (°F) (psi) Time 1 Pressure 1 Temperature 1 2 (psi) (°F) (min) (psi) (°F) (min) 7.30 67.00 0.01 80.00 Fluid Name: OLD MUD Fluids (3 of 3) Slurry Type: CEMENT Purpose: PRIMARY Class: G -CLASS Description: TAIL SLURRY Density: 15.80 (ppg) Yield: 1.1700 (ft'/sk) Mix Water Ratio: 5.125 (gal/sk94) Excess: 40.00(%) Mix Method: ON -THE -FLY Sacks Used: 418.00 (941b sacks) Water Volume: 51.0 (bbl) Excess Slurry Volume: 34.8 (bbl) Density Measured by: DENSOMETER Other Volume: Total Vol in Well: 87.1 (bbl) Slurry Volume: 87.1 (bbl) Excess Measured From: EST. GAUGE HOLE Mud Type: LSND/WBM Density: 9.10 (ppg) PV: 21.00 (cp) YP: 19.000 (Ibf/100ft2) Viscosity: 0.00 (s/qt) Gels 10 Sec: 7.000 (Ibf/100ft2) Gels 10 Min: 9.000 (Ibf/100ft-) Additives Name Type Amount Units Concentration Unit D046 ANTIFOAM 0.200 % BWOC D065 DISPERSANT 0.300 % BWOC D167 FLUID LOSS 0.500 % BWOC D186 ACCELERATOR 0.100 GAL Stages Stage Stage Type Est. Top Est. Bottom Mud Circ. Mud Circ. Top Bottom Plug Pressure Float Pressure Returns Circulate Cmt Vol to Total Annular no. (usft) I (usft) Rate Press. Plug Plug Bumped Bumped Held Held Prior Surface Mud Lost Flow (gpm) (psi) (psi) (min) (hr) (bbl) (bbl) After 1 PRIMARY CEMENT 45.40 3,762.54 420.0 190.00 Y I Y I Y 1 700.00 Y I 3.00 FULL 2.00 341.0 0.0 Pumping Schedule Fluid pumped Volume Avg. Max Disp. Slurry Top Slurry Base Start Mix Cmt Start Slurry Pumping end Start Disp Foam Gas Type Gas Vol BH circ. Bh static Pumped Disp. Rate TMD TMD Pmp date/time job Used temp. temp. (bbl) Rate (bbl/min) (usft) (usft) (SCO (bbl/min) SPACER - SPACER 100.0 45.40 45.40 N WEIGHTED CEMENT - LEAD SLURRY 716.0 45.40 2,763.00 N OLD MUD - TAIL SLURRY 87.1 6.00 10.00 2,763.00 3,763.00 11:37 11:47 12/29/2013 15:25 14:46 N 58.00 38.00 Printed 1/28/2014 8:48:38AM Printed 1/28/2014 8:48:38AM North America - ALASKA - BP Page 3 of 3 Cementing Report Common Well Name. Z-70 / OH Report no.: 1 D Report date: 12/29/2013 Project: Prudhoe Bay Site: PB Z Pad Spud Date/Time: 12/23/2013 Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 AFE No.: Contractor: PARKER DRILLING CO. Rig Name/No.: PARKER 273 Rig Release: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00 ) UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Tests Casing Test Shoe Test Liner Top Test Test Pressure: 3,500.00 (psi) FIT/LOT: 15.50 (ppg) Liner Overlap: (usft) Time: 30 (min) Tool: N Positive Test: (ppg) Positive Test Tool: N Cement Found between Shoe and Collar: N Open Hole Length: 28.00 (usft) Negative Test: (ppg) Negative Test Tool: N Hours Before Start: (hr) Time before test: (hr) Cmt Found on Tool: N Log/Survey Evaluation Interpretation Summary CBL Run: N Cement Top: 45.40 (usft) Under Pressure: (psi) How Determined: VISUAL CHECK Bond Quality: TOC Sufficient: Y CET Run: N Job Rating: FAIR Bond Quality: If Unsuccessful, Detection Indicator: Temp Survey: N Remedial Cement Required: N Hrs Prior to Log: (hr) How Determined: 0 Remarks BUMPED PLUG, 341 BBLS LEAD CEMENT BACK TO SURFACE, FLOATS HELD, NO LOSSES DURING JOB. Printed 1/28/2014 8:48:38AM Printed 1/23/2014 11:30:40AM North America - ALASKA - BP Page 1 of 4 Cementing Report Common Well Name: Z-70 / OH Report no.: 2D Report date: 1/10/2014 Project: Prudhoe Bay Site: PB Z Pad Spud Date/Time: 12/23/2013 Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 AFE No.: Contractor: PARKER DRILLING CO. Rig Name/No.: PARKER 273 Rig Release: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00 ) UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) General Information Job type: Primary Cement job start date/time: 1/9/2014 9:OOPM Job end date/time: 1/10/2014 1:30AM Cement Company: SCHLUMBERGER Cementer: MICHAELANDREW Cemented String: INTERMEDIATE CASING 1 String Size: 7.000 (in) String Set TMD: 11,070.37 (usft) Hole Size: 8.750 (in) Pipe Movement Pipe Movement: RECIPROCATING Rotating Time (Start -End): RPM: 0 (rpm) Rotating Torque (init/avg/max): (ft-Ibf) Reciprocating Time (Start -End): 9:00:00 pm 1:30:00 am Recip Drag Up/Down: 330.0 - 140.0 (kip) SPM: 1.00 (spm) Stroke Length: 5.00 (usft) Fluid Name: SPACER Fluids (1 of 3) Slurry Type: SPACER Purpose: SPACER Class: SPACER Description: SPACER WEIGHTED Density: 11.00 (ppg) Yield: Mix Water Ratio: Excess: 0.00(%) Mix Method: BATCH Sacks Used: Water Volume: 45.0 (bbl) Excess Slurry Volume: 0.0 (bbl) Density Measured by: PRESS. BAL Other Volume: Total Vol in Well: 45.0 (bbl) Slurry Volume: 45.0 (bbl) Excess Measured From: EST. GAUGE HOLE Mud Type: LSND Density: 10.40 (ppg) PV: 11.00 (cp) YP: 18.000 (Ibf/100ft') Viscosity: 46.00 (s/qt) Gels 10 Sec: 6.000 (Ibf/100ft2) Gels 10 Min: 8.000 (Ibf/100ft2) Fluid Name: CEMENT Fluids (2 of 3) Slurry Type: CEMENT Purpose: PRIMARY Class: LITE Description: LEAD SLURRY Density: 11.50 (ppg) Yield: 1.7900 (ft'/sk) Mix Water Ratio: 6.345 (gal/sk94) Excess: 30.00(%) Mix Method: ON -THE -FLY Sacks Used: 571.00 (941b sacks) Water Volume: 86.3 (bbl) Excess Slurry Volume: 54.6 (bbl) Density Measured by: PRESS. BAL Other Volume: 0.0 (bbl) Total Vol in Well: 182.0 (bbl) Slurry Volume: 182.0 (bbl) Excess Measured From: EST. GAUGE HOLE Mud Type: LSND Density: 10.40 (ppg) PV: 11.00 (cp) YP: 18.000 (Ibf/100ft2) Viscosity: 46.00 (s/qt) Gels 10 Sec: 6.000 (Ibf/100W) Gels 10 Min: 8.000 (Ibf/100ft2) Printed 1/23/2014 11:30:40AM North America - ALASKA - BP Page 2 of 4 Cementing Report Common Well Name: Z-70 / OH Report no. 2D Report date. 1/10/2014 Project: Prudhoe Bay Site: PB Z Pad Spud Date/Time: 12/23/2013 Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 AFE No.: Contractor: PARKER DRILLING CO. Rig Name/No.: PARKER 273 Rig Release: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00 ) UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Additives Name Type Amount Units Concentration Unit D047 ANTIFOAMAGENT 0.150 GAL/SX D202 DISPERSANT 0.220 % BWOC D600G GASBLOK 1.750 GAL/SX D167 FLUID LOSS 0.200 % BWOC D145A DISPERSANT 0.250 GAL/SX D198 RETARDERAID 0.100 % BWOC Fluid Tests Thick time Thick Free water Free water Fluid loss Fluid loss Fluid loss Comp Comp Comp Comp Comp Strength Comp Strength (hr) temp. M temp. (cc/30min) temp. press. Strength Strength Strength Strength Time Pressure 2 Temperature 2 (°F) (°F) (°F) (psi) Time 1 Pressure 1 Temperature 1 2 (psi) (°F) (min) (psi) (°F) (min) 5.25 90.00 0.00 80.00 10.0 161.00 1,000.00 63 50 223.00 74.3 500 223.00 Fluid Name: CEMENT Fluids (3 of 3) Slurry Type: CEMENT Purpose: PRIMARY Class: G -CLASS Description: TAIL SLURRY Density: 15.80 (ppg) Yield: 1.1700 (ft'/sk) Mix Water Ratio: 5.217 (gal/sk94) Excess: 30.00 (%) Mix Method: BATCH Sacks Used: 182.40 (941b sacks) Water Volume: 22.7 (bbl) Excess Slurry Volume: 11.4 (bbl) Density Measured by: PRESS. BAL Other Volume: 0.0 (bbl) Total Vol in Well: 38.0 (bbl) Slurry Volume: 38.0 (bbl) Excess Measured From: EST. GAUGE HOLE Mud Type: LSND Density: 10.40 (ppg) PV: 11.00 (cp) YP: 18.000 (Ibf/100ft2) Viscosity: 46.00 (s/qt) Gels 10 Sec: 6.000 (Ibf/100ft') Gels 10 Min: 8.000 (Ibf/100ft2) Additives Name Type Amount Units Concentration Unit D047 ANTIFOAM AGENT 0.200 GAL/SX D065 DISPERSANT 0.600 % BWOC D600G GASBLOK 2.000 GAL/SX D167 FLUID LOSS 0.200 % BWOC D177 RETARDER 0.040 GAL/SX Printed 1/23/2014 11:30:40AM Printed 1/23/2014 11:30:40AM North America -ALASKA - BP Page 3 of 4 Cementing Report Common Well Name: Z-70 / OH Report no. 2D Report date: 1/10/2014 Project: Prudhoe Bay Site: PB Z Pad Spud Date/Time: 12/23/2013 Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 AFE No.: Contractor: PARKER DRILLING CO. Rig Name/No.: PARKER 273 Rig Release: 1/19/2014 X3-0124W-C:DRILL (11,224,421.00 ) UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Fluid Tests Thick time Thick Free water Free water Fluid loss Fluid loss Fluid loss Comp Comp Comp Comp Comp Strength Comp Strength (hr) temp. (%) temp. (cc/30min) temp. press. Strength Strength Strength Strength Time Pressure 2 Temperature 2 (°F) (°F) (°F) (psi) Time 1 Pressure 1 Temperature 1 2 (psi) (°F) (min) (psi) (°F) (min) 5.25 90.00 0.00 80.00 8.0 161.00 1,000.00 11 500 223.00 20.0 2000 223.00 Stages Stage Stage Type Est. Top Est. Bottom Mud Circ. Mud Circ. Top Bottom Plug Pressure Float Returns Circulate Cmt Vol to Total Annular no. (usft) (usft) Rate Press. Plug Plug Bumped Bumped �Pressure Held Held Prior Surface Mud Lost Flow (gpm) (psi) (psi) (min) (hr) (bbl) (bbl) After 1 PRIMARY CEMENT 4,901.00 11,091.00 296.0 900.00 Y I Y I Y 1 820.00 Y 3.00 FULL 6.00 0.0 0.0 Pumping Schedule Fluid pumped Volume Avg. Max Disp. Slurry Top Slurry Base Start Mix Cmt Start Slurry Pumping end Start Disp Foam Gas Type Gas Vol BH circ. Bh static Pumped Disp. Rate TMD TMD Pmp date/time job Used temp. temp. (bbl) Rate (bbl/min) (usft) (usft) (scf) (bbl/min) CEMENT - LEAD SLURRY 182.0 4,901.00 10,091.00 N SPACER - SPACER 45.0 3,250.00 4,901.00 N WEIGHTED CEMENT - TAIL SLURRY 38.0 6.00 8.00 10,091.00 11,091.00 21:09 2243 1/10/2014 1:20 23:53 N 161.00 223.00 Tests Casing Test Shoe Test Liner Top Test Test Pressure: 3,500.00 (psi) FIT/LOT: 11.80 (ppg) Liner Overlap: (usft) Time: 30 (min) Tool: N Positive Test: (ppg) Positive Test Tool: N Cement Found between Shoe and Collar: Y Open Hole Length: 22.00 (usft) Negative Test: (ppg) Negative Test Tool: N Hours Before Start: (hr) Time before test: (hr) Cmt Found on Tool: N Log/Survey Evaluation Interpretation Summary CBL Run: N Cement Top: 4,901.00 (usft) Under Pressure: (psi) How Determined: PLANNED TOC Bond Quality: TOC Sufficient: Y CET Run: N Job Rating: GOOD Bond Quality: If Unsuccessful, Detection Indicator: Temp Survey: N Remedial Cement Required: N Hrs Prior to Log: (hr) How Determined: 0 Printed 1/23/2014 11:30:40AM North America -ALASKA - BP Page 4 of 4 Cementing Report Common Well Name: Z-70 / OH Report no.. 2D Report date: 1/10/2014 Project: Prudhoe Bay Site: PB Z Pad Spud Date/Time: 12/23/2013 Event Type: DRL- ONSHORE (DON) Start Date: 12/20/2013 End Date: 1/19/2014 AFE No.: Contractor: PARKER DRILLING CO. Rig Name/No.: PARKER 273 Rig Release: 1/19/2014 X3 -0124W -C: DRILL (11,224,421.00 ) UWI: 500292350000 Active datum: Z-70 ACTUAL @103.10usft (above Mean Sea Level) Remarks NO LOSSES DURING JOB, BUMPED PLUG, FLOATS HELD, FINAL BUMP PRESSURE = 820 PSI (INSTEAD OF SLB CEMCADE MODEL 1147 PSI). CEMENT SLURRY DENSITIES WITHIN DESIGN SPECS Printed 1/23/2014 11:30:40AM Schlumbep9ep Drilling & Measurements MWD/LWD Log Product Delivery DATA LOGGED '4, f q,12014 M K BENDER Transmittal #: 6595 .LLL0 A F B 4 3%"11i. Customer BP Exploration Alaska Inc Dispatched To: Makana Bender Well No Installation/Rig Z-70 Parker 273 Date Dispatched 28 -Jan -14 Dispatched By: Stephanie Pacillo z\3-\33 2 3-n� l Data Survey No Of Prints No of CDs Z-70 Log 1 1 2 in MD 1 2 in TVD 1 5 in MD 1 5 in TVD 1 Received By: / Please sign and return one copyto: Drilling & Measurements 2525 Gambell Street, Suite 400 Anchorage, Alaska 99503 hecheto(cDslb.Com Hector Echeto Fax: 907-561-8317 Z-70 Survey Geodetic Report Schlumberger (Non -Def Survey) )rt Date: - January 21, 2014 - 03:34 PM it: BP 1: Prudhoe Bay Unit - WOA cture / Slot: Z -PAD / Slot (SF) Seabed I Ground Elevation: Z-70 .hole: Z-70 Total Gravity Field Strength: 500292350000 ey Name: Z-70 ey Date: January 13, 2014 / AHD I DDI I ERD Ratio: 356.385 ° / 9142.003 ft / 6.707 / 1.018 -dinate Reference System: NAD27 Alaska State Plane, Zone 04, US Feet ition Let I Long: N 70° 17' 51.62360", W 149° 11' 26.97047" ition Grid NIE Y/X: N 5959100.100 HUS, E 599920.930 ftUS Grid Convergence Angle: 0.7618 ° Scale Factor: 0.99991134 ion I Patch: 2.7.998.0 Vertical Section Azimuth: 300.220 ° (True North) Vertical Section Origin: 0.000 ft, 0.000 fl TVD Reference Datum: Rotary Table TVD Reference Elevation: 101.600 H above MSL Seabed I Ground Elevation: 56.200 H above MSL Magnetic Declination: 19.798 ° Total Gravity Field Strength: 1001.9635mgn (9.80665 Based) Gravity Model: GARM Total Magnetic Field Strength: 57622.89 nT Magnetic Dip Angle: 80.94 ° Declination Date: December 28, 2013 Magnetic Declination Model: BGGM 2013 North Reference: True North Total Corr Mag North- True North: 0.0000 ° Total Corr Mag - Grid North: 19.798 ° Local Coord Referenced To: Well Head 1 `OCP V E FF8 0 3tv14 x�(A-41, Comments MD Incl Azim True TVDSS TVD VSEC AHD Closure NS EW DLS Northing Easting Longitude Latitude (ft) RTE 0.00 (°) 0.00 (°l 0.00 (ft) -101.60 (ft) 0.00 (k) 0.00 (ft) (ft) (ftl (ft) ! 1100H) (ftUS) MUS) O (I WRP 45.40 0.00 0.00 -56.20 45.40 0.00 0.00 0.00 0.00 0.00 0.00 N/A 5959100.10 599920.93 -149.19082513 70.29767322 46.90 0.00 0.00 46.90 0.00 0.00 0.00 0.00 5959100.10 599920.93 -149.19082513 70.29767322 100.00 0.21 279.68 -54.70 0.00 0.00 0.00 0.00 0.00 0.00 5959100.10 599920.93 -149.19082513 70.29767322 -1.60 100.00 0.09 0.10 0.10 0.02 -0.10 0.40 5959100.12 599920.83 -149.19082591 70.29767327 190.00 0.80 308.61 88.40 190.00 0.87 0.88 0.87 0.44 -0.75 0.69 5959100.53 599920.17 -149.19083120 70.29767441 251.00 0.19 333.75 149.39 250.99 1.37 1.40 1.38 0.79 -1.13 1.04 5959100.88 599919.79 -149.19083426 70.29767539 286.00 0.47 285.42 184.39 285.99 1.56 1.59 1.56 0.88 -1.29 1.06 5959100.97 599919.63 -149.19083558 70.29767563 314.00 0.56 249.44 212.39 313.99 1.76 1.84 1.76 0.87 -1.53 1.18 5959100.94 599919.39 -149.19083752 70.29767559 344.00 0.73 220.11 242.39 343.99 1.88 2.17 1.91 0.67 -1.79 1.22 5959100.74 599919.13 -149.19083963 70.29767505 375.00 1.89 191.74 273.38 374.98 1.75 2.86 2.02 0.02 -2.02 4.18 5959100.09 599918.91 -149.19084150 70.29767327 439.00 2.95 182.67 337.32 438.92 0.66 5.56 3.53 -2.66 -2.31 1.76 5959097.41 599918.65 -149.19084386 70.29766595 470.00 3.75 181.46 368.27 469.87 -0.20 7.37 5.06 -4.47 -2.38 2.59 5959095.60 599918.61 -149.19084437 70.29766100 565.00 4.84 181.49 463.00 564.60 -3.62 14.49 11.86 -11.58 -2.56 1.15 5959088.48 599918.53 -149.19084585 70.29764157 660.00 5.37 168.30 557.63 659.23 -8.52 22.90 20.02 -19.94 -1.76 1.35 5959080.14 599919.43 -149.19083940 70.29761874 754.75 8.35 170.32 651.69 753.29 -15.89 34.22 31.07 -31.07 0.29 3.15 5959069.04 599921.64 -149.19082275 70.29758834 812.00 9.20 177.52 708.27 809.87 -21.03 42.94 39.76 -39.74 1.19 2.42 5959060.38 599922.65 -149.19081548 70.29756465 869.63 9.55 182.46 765.13 866.73 -25.75 52.32 49.13 -49.12 1.19 1.52 5959051.00 599922.77 -149.19081553 70.29753903 927.60 10.41 182.87 822.22 923.82 -30.39 62.37 59.16 59.16 0.72 1.49 5959040.96 599922.43 -149.19081933 70.29751161 964.74 10.61 185.75 858.74 960.34 -33.35 69.14 65.91 -05.91 0.21 1.51 5959034.21 599922.01 -149.19082346 70.29749317 1028.28 11.37 194.76 921.12 1022.72 -37.44 81.23 77.81 -77.79 -1.98 2.95 5959022.30 599919.99 -149.19084113 70.29746072 1059.04 12.65 196.99 951.21 1052.81 -39.02 87.63 84.02 -83.94 -3.73 4.43 5959016.13 599918.31 -149.19085535 70.29744391 1155.13 14.05 203.47 1044.70 1146.30 -42.80 109.79 105.33 -104.70 -11.45 2.13 5958995.26 599910.87 -149.19091787 70.29738718 1188.72 15.20 210.58 1077.21 1178.81 -03.25 118.26 113.28 -112.24 -15.32 6.34 5958987.68 599907.11 -149.19094916 70.29736660 1222.06 1249.59 17.57 213.19 1109.19 1210.79 -42.97 127.67 121.91 -120.21 -20.30 7.44 5958979.64 599902.24 -149.19098947 70.29734482 19.03 216.17 1135.33 1236.93 -42.29 136.31 129.79 -127.31 -25.22 6.30 5958972.48 599897.41 -149.19102934 70.29732542 1344.91 21.13 226.74 1224.88 1326.48 -35.79 168.95 158.73 -151.64 46.91 4.39 5958947.86 599876.04 -149.19120499 70.29725895 1435.26 21.56 236.28 1309.06 1410.66 -23.86 201.77 186.71 -172.02 -72.59 3.87 5958927.14 599850.64 -149.19141288 70.29720327 1507.00 22.59 244.28 1375.55 1477.15 -10.35 228.70 208.70 -185.32 -95.97 4.43 5958913.53 599827.44 -149.19160221 70.29716693 1534.59 22.97 244.36 1400.99 1502.59 -0.36 239.38 217.33 -189.95 -105.60 1.38 5958908.78 599817.87 -149.19168016 70.29715428 1628.35 23.49 246.57 1487.15 1588.75 16.98 276.36 248.06 -205.30 -139.24 1.08 5958892.99 599784.45 -149.19195254 70.29711235 1725.10 25.12 251.65 1575.33 1676.93 42.01 316.15 281.57 -219.44 -176.43 2.74 5958878.36 599747.45 -149.19225366 70.29707374 1819.01 27.34 260.09 1659.60 1761.20 71.70 357.60 315.53 -229.43 -216.61 4.62 5958867.83 599707.41 -149.19257901 70.29704644 1913.45 28.25 263.78 1743.15 1844.75 106.26 401.62 351.00 -235.58 -260.20 2.06 5958861.10 599663.91 -149.19293191 70.29702962 2009.49 31.17 269.27 1826.57 1928.17 145.88 449.19 389.20 -238.36 -307.66 4.15 5958857.69 599616.49 -149.19331624 70.29702202 2103.98 33.61 273.96 1906.36 2007.96 190.32 499.78 429.45 -236.87 -358.22 3.70 5958858.51 599565.92 -149.19372559 70.29702610 2198.68 36.46 274.25 1983.90 2085.50 239.13 554.14 473.69 -232.97 -412.44 3.01 5958861.69 599511.66 -149.19416460 70.29703673 2293.56 40.63 274.50 2058.09 2159.69 292.33 613.25 523.82 -228.46 -471.38 4.40 5958865.42 599452.68 -149.19464180 70.29704906 2388.66 43.35 274.96 2128.76 2230.36 349.76 676.87 579.49 -223.20 -534.77 2.88 5958869.83 599389.22 -149.19515513 70.29706340 2482.94 45.48 272.84 2196.11 2297.71 408.88 742.84 639.19 -218.74 -600.59 2.75 5958873.42 599323.35 -149.19568807 70.29707558 2578.16 47.73 273.92 2261.52 2363.12 470.61 812.02 703.22 -214.65 -669.66 2.50 5958876.59 599254.25 -149.19624726 70.29708674 2673.33 46.91 277.17 2326.05 2427.65 534.17 881.98 767.95 -207.90 -739.28 2.65 5958882.41 599184.55 -149.19681097 70.29710515 2767.01 49.60 278.95 2388.42 2490.02 598.90 951.87 832.38 -198.08 -808.47 3.20 5958891.31 599115.24 -149.19737121 70.29713196 Drilling Office 2.7.998.0 Prudhoe Bay Unit - WOA)Z-PAD\Z-70)Z-70\Z-70 1/21/2014 3:50 PM Page 1 of 4 Comments MD Incl Azim True TVDSS TVD VSEC AHD Closure NS EW DLS Northing Easting Longitude Latitude (ft) 2862.30 M 50.69 (`1 280.07 (it) 2449.49 (ft) 2551.09 (ft) 667.32 (ft) 1025.02 (ft) 900.04 (ftl -185.99 (ftl -880.61 V1100 I 1.46 (ftllS) 5958902.44 (ftus) 599042.95 I l -149.19795535 ! 1 70.29716497 2957.31 50.18 279.75 2510.00 2611.60 736.01 1098.26 968.41 -173.38 -952.76 0.60 5958914.08 598970.65 -149.19853955 70.29719938 3052.30 50.97 282.78 2570.33 2671.93 805.40 1171.63 1036.97 -159.04 -1024.70 2.60 5958927.46 598898.52 -149.19912210 70.29723854 3147.61 50.43 282.67 2630.70 2732.30 875.74 1245.38 1105.90 -142.80 -1096.65 0.57 5958942.75 598826.38 -149.19970463 70.29728289 3242.28 49.84 285.43 2691.39 2792.99 945.51 1318.04 1173.82 -125.17 -1167.13 2.32 5958959.44 598755.68 -149,20027533 70.29733103 3338.08 49.15 285.38 2753.61 2855.21 1015.93 1390.88 1241.87 -105.82 -1237.35 0.72 5958977.85 598685.21 -149.20084396 70.29738386 3431.98 48.92 285.04 2815.17 2916.77 1084,42 1461.79 1308.68 -87.21 -1305.77 0.37 5958995.54 598616.55 -149.20139799 70.29743465 3526.93 48.16 284.78 2878.04 2979.64 1153.05 1532.94 1376.26 -38.90 -1374.53 0.83 5959012.93 598547.56 -149.20195477 70.29748464 3621.74 48.12 284.60 2941.31 3042.91 1221.08 1603.55 1443.74 -51.00 -1442.84 0.15 5959029.93 598479.03 -149.20250786 70.29753352 3700.45 47.51 284.53 2994.16 3095.76 1277.24 1661.88 1499.72 -36.33 -1499.28 0.78 5959043.84 598422.40 -149.20296495 70.29757356 9-5/8' 3713.00 47.57 284.37 3002.64 3104.24 1286.15 1671.14 1508.63 -34.02 -1508.25 1.07 5959046.03 598413.40 -149.20303755 70.29757987 3868.63 48.35 282.38 3106.86 3208.46 1396.76 1786.71 1620.71 -7.30 -1620.69 1.07 5959071.25 598300.63 -149.20394804 70.29765280 3931.19 47.90 282.40 3148.62 3250.22 1441.11 1833.30 1666.19 2.69 -1666.19 0.72 5959080.64 598255.01 -149.20431645 70.29768008 4026.11 46.48 283.45 3213.12 3314.72 1507.59 1902.93 1734.15 18.26 -1734.06 1.70 5959095.31 598186.94 -149.20486602 70.29772257 4120.76 48.81 282.72 3276.88 3378.48 1574.42 1972.87 1802.50 34.09 -1802.18. 2.53 5959110.22 598118.62 -149.20541767 70.29776576 4214.89 47.79 282.44 3339.50 3441.10 1641.40 2043.15 1871.43 49.40 -1870.77 1.11 5959124.62 598049.84 -149.20597310 70.29780753 4310.64 48.14 280.59 3403.62 3505.22 1708.75 2114.26 1941.49 63.59 -1940.45 1.48 5959137.88 597979.98 -149.20653735 70.29784626 4405.25 48.03 280.43 3466.82 3568.42 1775.03 2184.66 2011.13 76.43 -2009.67 0.17 5959149.80 597910.60 -149.20709787 70.29788129 4500.45 48.13 283.19 3530.43 3632.03 1842.23 2255.49 2080.99 90.93 -2079.00 2.16 5959163.37 597841.09 -149.20765924 70.29792084 1 4594.80 48.19 284.32 3593.37 3694.97 1909.63 2325.79 2149.97 107.64 -2147.27 0.89 5959179.17 597772.61 -149.20821210 70.29796645 4688.15 49.97 286.12 3654.51 3756.11 1977.76 2396.32 2218.91 126.17 -2215.32 2.40 5959196.80 597704.33 -149.20876318 70.29801702 4726.18 50.32 288.02 3678.88 3780.48 2006.19 2425.51 2247.27 134.74 -2243.23 3.94 5959204.99 597676.31 -149.20898915 70.29804041 4758.21 50.00 289.10 3699.40 3801.00 2030.28 2450.10 2271.02 142.57 -2266.54 2.78 5959212.51 597652.90 -149.20917796 70.29806177 4785.85 49.61 291.61 3717.24 3818.84 2051.07 2471.22 2291.25 149.91 -2286.34 7.08 5959219.59 597633.01 -149.20933823 70.29808181 4880.02 49.66 291.74 3778.23 3879.83 2122.03 2542.97 2359.62 176.41 -2353.01 0.12 5959245.20 597565.99 -149.20987821 70.29815416 4975.20 48.89 291.98 3840.33 3941.93 2193.39 2615.10 2428.48 203.27 -2419.96 0.83 5959271.16 597498.70 -149.21042036 70.29822747 5007.29 48.78 291.67 3861.45 3963.05 2217.29 2639.26 2451.59 212.25 -2442.39 0.80 5959279.84 597476.16 -149.21060198 70.29825198 5040.72 49.02 292.61 3883.43 3985.03 2242.23 2664.45 2475.67 221.74 -2465.72 2.24 5959289.02 597452.70 -149.21079094 70.29827790 5070.36 49.49 295.74 3902.78 4004.38 2264.56 2686.90 2496.90 230.94 -2486.20 8.16 5959297.94 597432.11 -149.21095681 70.29830301 5164.68 49.86 295.40 3963.82 4065.42 2336.23 2758.81 2564.48 261.97 -2551.07 0.48 5959328.11 597366.84 -149.21148213 70.29838773 5259.71 50.06 295.45 4024.95 4126.55 2408.73 2831.56 2633.15 293.21 -2616.77 0.21 5959358.47 597300.73 -149.21201428 70.29847301 5354.61 49.91 299.29 4085.98 4187.58 2481.30 2904.23 2701.12 326.61 -2681.30 3.10 5959391.01 597235.77 -149.21253686 70.29856419 5449.64 50.76 300.30 4146.64 4248.24 2554.45 2977.39 2768.67 362.96 -2744.78 1.21 5959426.51 597171.82 -149.21305099 70.29866344 5545.27 50.67 297.82 4207.20 4308.80 2628.44 3051.40 2837.65 398.91 -2809.47 2.01 5959461.59 597106.66 -149.21357493 70.29876158 5639.53 50.04 297.55 4267.34 4368.94 2700.95 3123.98 2906.12 432.63 -2873.74 0.70 5959494.45 597041.95 -149.21409547 70.29885364 5733.10 49.98 294.94 4327.48 4429.08 2772.45 3195.66 2974.49 464.33 -2938.03 2.14 5959525.29 596977.26 -149.21461616 70.29894017 5827.69 49.49 293.29 4388.62 4490.22 2844.22 3267.84 3044.22 493.82 -3003.90 1.43 5959553.90 596911.00 -149.21514967 70.29902067 5921.99 48.55 293.01 4450.46 4552.06 2914.87 3339.03 3113.40 521.81 -3069.36 1.02 5959581.01 596845.19 -149.21567981 70.29909706 6017.35 49.11 292.53 4513.23 4614.83 2986.04 3410.81 3183.35 549.59 -3135.55 0.70 5959607.91 596778.64 -149.21621588 70.29917288 6112.09 49.09 291.28 4575.26 4676.86 3056.90 3482.42 3253.43 576.31 -3201.98 1.00 5959633.73 596711.86 -149.21675396 70.29924578 6207.76 48.13 291.96 4638.52 4740.12 3127.86 3554.19 3323.82 602.75 -3268.71 1.14 5959659.28 596644.79 -149.21729437 70.29931794 6303.12 50.36 294.16 4700.77 4802.37 3199.53 3626.42 3394.33 631.06 -3335.15 2.92 5959686.71 596577.99 -149.21783251 70.29939521 6397.39 51.18 293.82 4760.39 4861.99 3272.12 3699.44 3465.44 660.75 -3401.86 0.91 5959715.50 596510.89 -149.21837286 70.29947623 6492.47 51.59 293.10 4819.73 4921.33 3345.89 3773.73 3538.01 690.32 -3470.01 0.73 5959744.17 596442.36 -149.21892484 70.29955694 6587.62 50.77 293.84 4879.38 4980.98 3419.51 3847.87 3610.50 719.84 -3538.01 1.05 5959772.78 596373.98 -149.21947560 70.29963750 1 6682.10 49.19 293.48 4940.13 5041.73 3491.39 3920.22 3681.26 748.88 -3604.28 1.70 5959800.93 596307.34 -149.22001236 70.29971675 6777.60 48.87 294.70 5002.75 5104.35 3563.08 3992.33 3751.73 778.31 -3670.11 1.02 5959829.48 596241.13 -149.22054553 70.29979706 6873.03 48.29 293.34 5065.88 5167.48 3634.22 4063.88 3821.74 807.44 -3735.47 1.23 5959857.74 596175.40 -149.22107492 70.29987656 6967.75 49.24 293.24 5128.32 5229.92 3704.93 4135.11 3891.66 835.60 -3800.89 1.01 5959885.02 596109.61 -149.22160486 70.29995341 7062.87 48.67 292.03 5190.78 5292.38 3776.04 4206.85 3962.28 863.22 -3867.10 1.13 5959911.75 596043.04 -149.22214114 70.30002875 7157.14 50.02 292.69 5252.19 5353.79 3846.88 4278.37 4032.77 890.43 -3933.24 1.53 5959938.08 595976.56 -149.22267683 70.30010299 7251.75 49.10 294.21 5313.56 5415.16 3918.38 4350.37 4103.54 919.07 -3999.30 1.56 5959965.84 595910.13 -149.22321189 70.30018115 7346.82 48.93 294.04 5375.92 5477.52 3989.74 4422.14 4173.97 948.41 -4064.80 0.22 5959994.30 595844.25 -149.22374243 70.30026119 7441.59 48.52 293.30 5438.44 5540.04 4060.50 4493.36 4244.01 977.00 -4130.03 0.73 5960022.02 595778.65 -149.22427081 70.30033922 7537.06 48.51 296.11 5501.68 5603.28 4131.67 4564.88 4314.13 1006.89 -4194.99 2.20 5960051.04 595713.31 -149.22479701 70.30042076 7631.05 49.69 296.65 5563.22 5664.82 4202.56 4635.92 4383.41 1038.45 -4258.63 1.33 5960081.75 595649.26 -149.22531254 70.30050691 7725.85 49.75 296.62 5624.51 5726.11 4274.74 4708.24 4453.93 1070.88 -4323.28 0.07 5960113.31 595584.19 -149.22583622 70.30059538 7820.33 49.68 295.68 5685.60 5787.20 4346.63 4780.31 4524.39 1102.64 -4387.97 0.76 5960144.21 595519.08 -149.22636028 70.30068206 7915.82 49.45 295.65 5747.54 5849.14 4419.08 4852.99 4595.62 1134.12 -4453.48 0.24 5960174.81 595453.17 -149.22689096 70.30076795 8008.82 49.48 295.22 5807.98 5909.58 4489.51 4923.67 4664.99 1164.48 -4517.31 0.35 5960204.31 595388.94 -149.22740803 70.30085078 8105.19 49.02 294.31 5870.89 5972.49 4562.19 4996.68 4736.83 1195.06 -4583.60 0.86 5960234.01 595322.26 -149.22794502 70.30093422 8200.75 46.65 294.15 5935.03 6036.63 4632.63 5067.50 4806.68 1224.13 -4648.19 2.48 5960262.21 595257.30 -149.22846820 70.30101352 8295.50 44.24 293.58 6001.50 6103.10 4699.72 5135.02 4873.35 1251.45 -4709.92 2.58 5960288.71 595195.21 -149.22896831 70.30108805 8391.32 40.92 292.10 6072.05 6173.65 4764.01 5199.84 4937.55 1276.63 4769.65 3.62 5960313.09 595135.16 -149.22945214 70.30115675 8487.10 38.73 291.42 6145.60 6247.20 4824.68 5261.18 4998.46 1299.38 4826.62 2.33 5960335.08 595077.90 -149.22991358 70.30121880 8580.75 37.29 294.18 6219.39 6320.99 4881.85 5318.84 5055.60 1321.70 4879.78 2.38 5960356.69 595024.46 -149.23034421 70.30127969 Drilling Office 2.7.998.0 Prudhoe Bay Unit - WOA\Z-PAD1Z-70\Z-70\Z-70 1/21/2014 3:50 PM Page 2 of 4 Comments MD Incl Azim True TVDSS TVD VSEC AHD Closure NS EW DLS Northing Easting Longitude Latitude (ftl 8674.88 1°) 34.25 (°) 295.83 (ft) 6295.76 (ft) 6397.36 (ft) 4936.63 (ft) 5373.85 (ft) 5109.81 (ft) 1344.93 (ft) -4929.64 (1100ft) 3.39 fftus) 5960379.25 (ftl1S) 594974.29 f ) -149.23074819 (1 70.30134305 8768.71 31.97 291.16 6374.36 6475.96 4987.50 5425.08 5160.50 1365.41 -4976.59 3.64 5960399.10 594927.08 -149.23112849 70.30139891 8864.91 29.18 289.50 6457.18 6558.78 5035.71 5474.01 5209.24 1382.43 5022.45 3.03 5960415.51 594881.00 -149.23150004 70.30144534 8957.46 26.64 293.29 6538.96 6640.56 5078.48 5517.31 5252.31 1398.17 5062.79 3.35 5960430.71 594840.46 -149.23182678 70.30148826 9053.64 25.45 297.13 6625.38 6726.98 5120.53 5559.53 5293.91 1416.12 -5100.99 2.15 5960448.15 594802.02 -149.23213626 70.30153723 9148.07 24.75 295.47 6710.90 6812.50 5160.49 5599.58 5333.26 1433.87 -5136.90 1.05 5960465.42 594765.89 -149.23242713 70.30158566 9242.12 24.79 300.15 6796.30 6897.90 5199.83 5638.97 5371.75 1452.25 -5171.72 2.08 5960483.33 594730.83 -149.23270929 70.30163579 9338.40 24.23 299.06 6883.90 6985.50 5239.77 5678.91 5410.53 1471.98 5206.45 0.75 5960502.60 594695.85 -149.23299062 70.30168964 9431.63 23.11 298.12 6969.29 7070.89 5277.18 5716.34 5447.03 1489.90 5239.31 1.27 5960520.08 594662.75 -149.23325685 70.30173852 9528.52 22.50 297.50 7058.61 7160.21 5314.70 5753.89 5483.78 1507.42 -5272.52 0.68 5960537.15 594629.31 -149.23352594 70.30178633 9623.33 21.73 295.89 7146.44 7248.04 5350.32 5789.58 5518.84 1523.46 -5304.40 1.03 5960552.77 594597.22 -149.23378424 70.30183009 9718.56 21.81 300.23 7234.89 7336.49 5385.59 5824.89 5553.37 1540.06 -5335.55 1.69 5960568.96 594565.86 -149.23403658 70.30187539 9812.84 22.45 300.62 7322.22 7423.82 5421.11 5860.40 5587.79 1558.05 -5366.17 0.70 5960586.53 594535.00 -149.23428470 70.30192447 9908.35 21.69 299.64 7410.73 7512.33 5456.99 5896.29 5622.62 1576.07 5397.21 0.88 5960604.13 594503.73 -149.23453615 70.30197363 10000.73 21.16 300.10 7496.73 7598.33 5490.74 5930.03 5655.42 1592.87 5426.47 0.60 5960620.55 594474.25 -149.23477324 70.30201948 10097.37 22.60 303.42 7586.41 7688.01 5526.72 5966.04 5690.13 1611.85 5457.06 1.96 5960639.11 594443.42 -149.23502111 70.30207127 10191.74 22.19 302.68 7673.66 7775.26 5562.63 6001.99 5724.60 1631.46 5487.20 0.53 5960658.32 594413.03 -149.23526528 70.30212478 10286.12 21.09 300.92 7761.39 7862.99 5597.42 6036.79 5758.18 1649.81 -5516.77 1.35 5960676.27 594383.22 -149.23550487 70.30217485 10381.72 22.17 300.89 7850.25 7951.85 5632.65 6072.03 5792.34 1667.91 -5547.00 1.13 5960693.96 594352.75 -149.23574985 70.30222423 . 10476.56 23.02 301.84 7937.81 8039.41 5669.08 6108.47 5827.60 1686.88 -5578.11 0:98 5960712.52 594321.39 -149.23600193 70.30227599 10571.78 21.83 301.90 8025.83 8127.43 5705.39 6144.79 5862.68 1706.06 -5608.96 1.25 5960731.28 594290.29 -149.23625188 70.30232832 10666.40 22.79 300.57 8113.37 8214.97 5741.30 6180.71 5897.49 1724.67 5639.68 1.15 5960749.49 594259.34 -149.23650075 70.30237912 10761.56 23.18 301.60 8200.97 8302.57 5778.46 6217.87 5933.54 1743.86 5671.50 0.59 5960768.25 594227.27 -149.23675858 70.30243147 10855.75 24.60 303.19 8287.09 8388.69 5816.57 6256.01 5970.33 1764.31 5703.69 1.66 5960788.26 594194.80 -149.23701947 70.30248727 10950.46 22.48 302.14 8373.92 8475.52 5854.36 6293.84 6006.79 1784.73 -5735.53 2.28 5960808.26 594162.70 -149.23727741 70.30254300 7" 11016.19 11091.00 23.86 301.43 8434.34 8535.94 5880.21 6319.70 6031.83 1798.35 -5757.51 2.14 5960821.59 594140.54 -149.23745555 70.30258016 25.43 302.38 8502.34 8603.94 5911.39 6350.89 6062.03 1814.84 -5783.99 2.16 5960837.72 594113.85 -149.23767008 70.30262516 11119.79 26.03 302.72 8528.27 8629.87 5923.87 6363.39 6074.09 1821.57 5794.52 2.16 5960844.31 594103.23 -149.23775543 70.30264351 11148.15 28.40 305.15 8553.49 8655.09 5936.81 6376.35 6086.52 1828.82 5805.27 9.23 5960851.41 594092.38 -149.23784256 70.30266329 11180.83 11212.51 32.11 307.17 8581.72 8683.32 5953.18 6392.81 6102.11 1838.54 5818.55 11.77 5960860.96 594078.98 -149.23795018 70.30268983 11243.43 35.42 307.03 8608.05 8709.65 5970.66 6410.42 6118.70 1849.16 5832.59 10.45 5960871.39 594064.80 -149.23806397 70.30271881 38.12 306.28 8632.82 8734.42 5989.05 6428.93 6136.20 1860.21 5847.44 8.85 5960882.23 594049.80 -149.23818431 70.30274895 11274.40 42.00 305.40 8656.52 8758.12 6008.88 6448.85 6155.14 1871.87 5863.60 12.66 5960893.68 594033.49 -149.23831525 70.30278078 11305.86 45.61 305.35 8679.22 8780.82 6030.57 6470.63 6175.89 1884.47 -5881.36 11.48 5960906.05 594015.57 -149.23845912 70.30281518 11337.42 49.60 306.63 8700.49 8802.09 6053.75 6493.93 6198.02 1898.17 -5900.20 12.99 5960919.49 593996.55 -149.23861187 70.30285256 11370.67 11402.66 54.05 306.37 8721.04 8822.64 6079.73 6520.06 6222.79 1913.72 5921.21 13.40 5960934.75 593975.34 -149.23878211 70.30289498 58.04 308.52 8738.90 8840.50 6106.04 6546.59 6247.79 1929.85 5942.27 13.66 5960950.61 593954.07 -149.23895273 70.30293902 11433.45 11465.18 61.10 310.65 8754.50 8856.10 6132.23 6573.14 6272.47 1946.77 5962.72 11.59 5960967.25 593933.40 -149.23911848 70.30298520 63.88 312.05 8769.15 8870.75 6159.84 6601.27 6298.33 1965.37 -5983.84 9.60 5960985.56 593912.04 -149.23928966 70.30303595 11496.81 11527.67 66.80 313.78 8782.35 8883.95 6187.88 6630.02 6324.44 1984.94 5004.88 10.48 5961004.85 593890.73 -149.23946024 70.30308938 11559.28 70.05 72.09 315.59 8793.70 8895.30 6215.66 6658.71 6350.16 2005.12 5025.28 11.86 5961024.76 593870.07 -149.23962556 70.30314447 316.93 8803.95 8905.55 6244.39 6688.61 6376.61 2026.72 5045.95 7.60 5961046.08 593849.12 -149.23979311 70.30320344 11590.55 72.51 317.03 8813.46 8915.06 6272.92 6718.40 6402.81 2048.50 5066.27 1.38 5961067.59 593828.51 -149.23995786 70.30326289 11623.65 11655.70 74.04 317.42 8822.98 8924.58 6303.23 6750.10 6430.67 2071.77 5087.80 4.76 5961090.57 593806.68 -149.24013237 70.30332641 11687.51 76.27 78.39 317.05 8831.19 8932.79 6332.85 6781.08 6457.93 2094.51 5108.83 7.05 5961113.02 593785.34 -149.24030289 70.30338849 11717.23 80.71 316.21 8838.17 8939.77 6362.62 6812.11 6485.42 2117.07 5130.15 7.15 5961135.30 593763.74 -149.24047564 70.30345007 314.88 8843.56 8945.16 6390.81 6841.33 6511.59 2137.93 5150.61 8.96 5961155.88 593743.00 -149.24064156 70.30350702 11749.85 83.51 313.79 8848.04 8949.64 6422.14 6873.64 6540.84 2160.51 5173.72 9.20 5961178.14 593719.59 -149.24082888 70.30356864 11781.72 11814.00 84.83 314.98 8851.28 8952.88 6452.88 6905.35 6569.57 2182.68 -6196.38 5.56 5961200.02 593696.64 -149.24101254 70.30362918 86.72 314.04 8853.65 8955.25 6484.07 6937.54 6598.73 2205.25 5219.34 6.54 5961222.27 593673.39 -149.24119863 70.30369077 11845.23 11877.35 88.47 315.23 8854.96 8956.56 6514.29 6968.74 6627.00 2227.17 5241.54 6.77 5961243.90 593650.90 -149.24137860 70.30375061 90.18 315.99 8855.34 8956.94 6545.26 7000.86 6655.89 2250.12 5264.00 5.83 5961266.54 593628.13 -149.24156072 70.30381326 11908.04 90.54 316.16 8855.15 8956.75 6574.78 7031.54 6683.41 2272.23 5285.29 1.30 5961288.36 593606.55 -149.24173331 70.30387360 12002.11 90.45 314.60 8854.34 8955.94 6665.57 7125.61 6768.43 2339.18 5351.36 1.66 5961354.42 593539.60 -149.24226891 70.30405635 12067.18 90.42 317.86 8853.84 8955.44 6728.10 7190.68 6826.96 2386.16 -6396.37 5.01 5961400.80 593493.98 -149.24263376 70.30418460 12096.34 91.04 319.07 8853.47 8955.07 6755.80 7219.84 6852.71 2407.99 -6415.70 4.66 5961422.36 593474.36 -149.24279051 70.30424418 12132.64 91.32 322.09 8852.72 8954.32 6789.82 7256.13 6884.16 2436.02 5438.75 8.35 5961450.08 593450.95 -149.24297735 70.30432071 12164.32 91.37 324.80 8851.98 8953.58 6818.92 7287.80 6910.82 2461.46 5457.61 8.55 5961475.27 593431.75 -149.24313030 70.30439016 12192.06 92.48 325.79 8851.05 8952.65 6844.03 7315.52 6933.71 2484.25 -6473.39 5.36 5961497.84 593415.67 -149.24325831 70.30445239 12228.37 12260.01 94.20 326.34 8848.93 8950.53 6876.65 7351.77 6963.41 2514.32 5493.63 4.97 5961527.64 593395.04 -149.24342242 70.30453450 95.43 327.17 8846.28 8947.88 6904.86 7383.30 6989.07 2540.69 5510.91 4.68 5961553.77 593377.41 -149.24356260 70.30460649 12287.08 96.69 326.51 8843.42 8945.02 6928.92 7410.22 7010.99 2563.22 5525.64 5.25 5961576.11 593362.39 -149.24368202 70.30466802 12323.81 99.31 327.51 8838.31 8939.91 6961.39 7446.59 7040.61 2593.73 -6545.44 7.63 5961606.34 593342.18 -149.24384264 70.30475131 12354.59 12382.45 100.77 328.75 8832.94 8934.54 6988.17 7476.89 7064.99 2619.47 5561.44 6.18 5961631.87 593325.84 -149.24397244 70.30482158 12477.77 102.21 102.75 328.90 8827.39 8928.99 7012.14 7504.20 7086.80 2642.82 -6575.57 5.20 5961655.03 593311.40 -149.24408708 70.30488536 329.35 8806.79 8908.39 7093.61 7597.26 7161.12 2722.70 -6623.33 0.73 5961734.26 593262.59 -149.24447450 70.30510347 Drilling Office 2.7.998.0 Prudhoe Bay Unit - WOA\Z-PAD\Z-70\Z-70\Z-70 1/21/2014 3:50 PM Page 3 of 4 Comments MD Incl Azim True TVDSS TVD VSEC AHD Closure NS EW DLS Northing Easting Longitude Latitude (ft) 12513.01 1°l 101.83 /°l 327.15 (ft) 8799.29 (ft) 8900.89 (ft) 7124.00 (ft) 7631.69 (it) 7189.04 (ft) 2751.98 (ft) -6641.45 (11001ft) 6.63 (ftus) 5961763.29 (ftus) 593244.08 (1 -149.24462146 1 ) 70.30518341 12572.17 102.44 325.40 8786.85 8888.45 7175.96 7689.53 7237.19 2800.08 -6673.56 3.07 5961810.96 593211.34 -149.24488190 70.30531474 12604.34 101.71 326.51 8780.12 8881.72 7204.30 7720.99 7263.53 2826.15 -6691.17 4.07 5961836.79 593193.38 -149.24502474 70.30538591 12635.78 100.80 326.96 8773.99 8875.59 7231.89 7751.83 7289.16 2851.93 -6708.09 3.22 5961862.34 593176.13 -149.24516193 70.30545631 12666.36 99.51 329.77 8768.60 8870.20 7258.43 7781.93 7313.74 2877.56 -6723.87 9.98 5961887.75 593160.01 -149.24528997 70.30552627 12699.78 97.07 331.50 8763.78 8865.38 7286.94 7814.99 7340.01 2906.37 -6740.08 8.92 5961916.35 593143.41 -149.24542152 70.30560497 12730.85 94.68 332.91 6760.60 8862.20 7313.15 7845.90 7364.09 2933.71 -6754.49 8.92 5961943.49 593128.64 -149.24553844 70.30567962 12763.21 93.25 335.63 8758.36 8859.96 7339.90 7878.18 7388.56 2962.79 -6768.51 9.48 5961972.38 593114.25 -149.24565216 70.30575902 12795.71 91.36 337.07 8757.05 8858.65 7366.12 7910.65 7412.45 2992.54 -6781.53 7.31 5962001.94 593100.83 -149.24575789 70.30584025 12827.38 92.03 336.80 8756.11 8857.71 7391.50 7942.31 7435.59 3021.66 -6793.93 2.28 5962030.90 593088.04 -149.24585856 70.30591979 12859.65 93.85 337.14 8754.46 8856.06 7417.32 7974.53 7459.19 3051.32 -6806.54 5.74 5962060.38 593075.04 -149.24596090 70.30600078 12889.67 95.51 339.61 8752.01 8853.61 7440.85 8004.45 7480.66 3079.13 -6817.57 9.89 5962088.04 593063.65 -149.24605042 70.30607673 12921.44 95.34 341.35 8749.01 8850.61 7464.98 8036.08 7502.59 3108.94 -6828.14 5.48 5962117.71 593052.69 -149.24613624 70.30615814 12952.85 90.85 343.57 8747.31 8848.91 7488.19 8067.44 7523.62 3138.84 -6837.58 15.94 5962147.47 593042.84 -149.24621300 70.30623979 12983.94 86.99 346.00 8747.90 8849.50 7510.33 8098.52 7543.58 3168.82 -6845.74 14.67 5962177.34 593034.29 -149.24627929 70.30632169 13015.67 84.10 345.79 8750.36 8851.96 7532.44 8130.15 7563.50 3199.50 -6853.45 9.13 5962207.91 593026.17 -149.24634195 70.30640548 13046.80 81.23 343.53 8754.34 8855.94 7554.47 8161.02 7583.53 3229.27 -6861.61 11.70 5962237.57 593017.61 -149.24640831 70.30648679 13078.41 79.91 344.90 8759.51 8861.11 7576.91 8192.20 7604.02 3259.28 -6870.10 5.98 5962267.46 593008.73 -149.24647725 70.30656874 13110.11 81.28 344.70 8764.69 8866.29 7599.18 8223.47 7624.40 3289.45 -6878.29 4.37 5962297.52 593000.14 -149.24654390 70.30665117 13141.66 82.77 346.?7 8769.07 8870.67 7621.17 8254.72 7644.55 3319.70 -6886.12 6.83 5962327.66 592991.90 -149.24660755 70.30673378 13173.54 83.10 345.52 8772.99 8874.59 7643.28 8286.36 7664.86 3350.38 -6893.83 2.55 5962358.23 592983.79 -149.24667023 70.30681759 13236.64 82.30 345.54 8781.01 8882.61 7687.29 8348.94 7705.56 3410.99 -6909.47 1.27 5962418.62 592967.35 -149.24679737 70.30698311 13331.62 81.65 344.63 8794.27 8895.87 7753.95 8442.99 7767.82 3501.87 -6933.68 1.17 5962509.16 592941.94 -149.24699414 70.30723132 13426.02 82.84 343.27 8807.01 8908.61 7821.54 8536.53 7831.72 3591.75 -6959.54 1.90 5962598.69 592914.88 -149.24720431 70.30747682 13521.80 83.03 340.18 8818.79 8920.39 7892.72 8631.58 7899.88 3682.00 -6989.34 3.21 5962688.52 592883.89 -149.24744643 70.30772329 13616.22 83.02 336.66 8830.26 8931.86 7966.36 8725.30 7971.22 3769.14 -7023.81 3.70 5962775.19 592848.27 -149.24772629 70.30796126 13711.68 83.99 336.71 8841.06 8942.66 8042.63 8820.15 8045.70 3856.24 -7061.35 1.02 5962861.77 592809.58 -149.24803106 70.30819912 13805.69 83.50 336.27 8851.30 8952.90 8117.98 8913.60 8119.69 3941.93 -7098.63 0.70 5962946.95 592771.17 -149.24833372 70.30843313 13900.58 82.44 336.34 6862.92 8964.52 8194.08 9007.77 8194.84 - 4028.17 -7136.47 1.12 5963032.67 592732.18 -149.24864098 70.30866862 13995.91 82.38 338.93 8875.51 8977.11 8269.13 9102.27 8269.30 4115.55 -7172.42 2.69 5963119.56 592695.08 -149.24893293 70.30890724 14036.00 82.38 338.93 8880.83 8982.43 8300.14 9142.00 8300.19 4152.63 -7186.71 0.00 5963156.44 592680.30 -149.24904895 70.30900850 Survey Error Model: ISCWSA Rev 0'°` 3-D 95.000% Confidence 2.7955 sigma Survey Program: Description Part MD From MD To EOU Freq Hole Size Casing Diameter (ft) (ft) (ft) (in) lin) Survey Tool Type Borehole I Survey 1 0.000 812.000 Act Stns 12.250 9.625 GYD-GC-SS Z-70 / Z-70 1 869.630 1435.260 Act Stns 12.250 9.625 MWD+IFR+MS Z-70 / Z-70 1 1507.000 1507.000 Act Stns 12.250 9.625 GYD-GC-SS Z-70 / Z-70 1 1534.590 3700.450 Act Stns 12.250 9.625 MWD+IFR+MS Z-70 / Z-70 1 3868.630 11016.190 Act Stns 8.750 7.000 MWD+IFR+MS Z-70 / Z-70 1 11119.790 13995.910 Act Stns 6.125 4.500 MWD+IFR+MS Z -70/Z-70 1 14036.000 14036.000 Act Stns 6.125 4.500 BLIND Z-70 / Z-70 Legal Description: Northing (Y) Eastin (X) Surface: 4293.6 FSL 2756.7 FEL S19 T11N R12E UM 5959100.100 599920.930 BHL: 3163 FSL 4991 FEL 13 T11N R11 EUM 5963156.440 592680.300 SLB DE: Client Representative: Date: Drilling Office 2.7.998.0 Prudhoe Bay Unit - WOA1Z-PAD\Z-70\Z-70)Z-70 1/21/2014 3:50 PM Page 4 of 4 Final Definitive Survey Verified and Signed -off All targets and/or well position objectives have been achieved. I] Yes ❑ No I have checked to the best of my ability that the following data is correct: ❑O Surface Coordinates ❑p Declinallon & Convergence 10 GRS Survey Corrections p Survey Tool Codes Drilling Office 2.7.998.0 Prudhoe Bay Unit - WOA1Z-PAD\Z-70\Z-70)Z-70 1/21/2014 3:50 PM Page 4 of 4 Output Channel(s) Output Description Input Parameter Uutput Value Unit Sampling A34H_UNC.[1] IMPulse[l]:IMPulse[l] Run Name Pass Objective Direction Top Bottom Start Stop Include Parallel Data LWD004 Drilling Down 11092.00 ft 6in RT 11 -Jan -2014 4:59:37 AM ADN[1]:ADN[1]:ADN[1] 6in RT LWD004 Ream Down 1 Down 10963.67 ft 11093.00 ft 11 -Jan -2014 7:48:20 PM 12 -Jan -2014 3:23:31 AM All depths are referenced to toolstring zero • • LWD004 Description: ARC +VDN Detail RT Format: Log (tin RT TVD RES+VDN) Index Scale: 5 in per 100 ft Index Unit: ft Index Type: SSTVD Creation Date: 13 -Jan -2014 04:38:23 Channel Source Sampling A34H_UNC.[1] IMPulse[l]:IMPulse[l] 6in RT DRHB.[1] ADN[1]:ADN[1]:ADN[1] 6in RT GR IMPulse[1]:IMPulse[1]:IDCA[1] 6in - RT P16H_UNC.[l] IMPulse[l]:IMPulse[l] 6in RT P34H_UNC.[1] IMPulse[l]:IMPulse[l] 6in RT ROBB.[1] ADN[1]:ADN[1]:ADN[1] 6in RT ROP5 DRILLING SURFACE 6in RT TNPH.[1] ADN[1]:ADN[1]:ADN[1] 6in RT Rate of penetration averaged over the last 5 ft (1.5 m) (ROP5) RT_ 500 ft/h 0 Gamma Ray (GR) IMPulse[l] RT 0 gAPI 150 8470 TVDSS 8480 TVDSS 8490 TVDSS 8500 TVDSS 8510 TVDSS [ 8520 TVDSS 8530 TVDSS I t Uncorrected Phase Shift Resistivity for 34 inch Spacing at 2 MHz (P34HUNC) _ Thermal Neutron Porosity (Ratio Method) in 0.2 ohm.m 200 Selected Lithology (TNPH) ( IMPulse[l] ) 0.6 ft3/ft3 0 Instance -1 6" IMPulse 1 RT Uncorrected Phase Shift Resistivity for 16 inch Instance - 1 ( 6" ADN[1] RT) Spacing at 2 MHz (P16H_UNC) Bulk Density, Bottom (ROBB) 0.2 ohm.m 200 1.65 g/cm3 2.65 Instance -1 ( 6" IMPulse[l] RT ) Instance - 1 (6" ADN[1] RT) Uncorrected Attenuation Resistivity for 34 inch Spacing at 2 MHz (A34H_UNC)Bulk Density Correction_ Bottom (DRHB) . - 0.2 ohm.m 200 -0.8 g/cm3 0.2 Instance -1 ( 6" IMPulse[l] RT) Instance -1 ( 6" ADN[1] RT) IbRHB-[1j i I J �r r 'el J I.I I TVDSS Imills, ME -111100001 . gra;, woELmimMON MO MIN 111111m W- III -NINE TVDSS Imills, ME -111100001 MIN 111111m W- III -NINE 111alm r m I 1 mwvm 0 old,111 1111111111ILlifillooll ,- =--m ISO Iii Description: ARC +VDN Detail RT Format: Log (2in RT TVD RES+VDN) Index Scale: 5 in per 100 ft Index Unit: ft Index Type: SSTVD Creation Date 13 -Jan -2014 04:38:23 SS t l L . 8770 TVDSS t �;• Z 8780 TVDSS C -LIN 8790 TVDSS l 3 8800 TVDSS ••�• .- • ' sC I 8810 TVDSS , • t 8820 TVDSS • ` / 8830 TVDSS �;:•• <� S y 8840 TVDSS �•� ;'..�.. < i I 8850 TVDSSIrr I L ; -''• _71-7H Rate of penetration averaged over the last 5 ft Uncorrected Phase Shift Resistivity for 34 inch Thermal Neutron Porosity (Ratio Method) in (1.5 m) (ROP5) RT ------------- Spacing at 2 MHz (P34H_UNC) --------------------- Selected Lithology (TNPH) 500 ft/h 0 0.2 ohm.m 200 0.6 ft3/ft3 0 Instance -1 ( 6" IMPulse[1] RT ) Instance - 1 ( 6" ADN[1] RT) Gamma Ray (GR) IMPulse[1] RT Uncorrected Phase Shift Resistivity for 16 inch Bulk Density, Bottom (ROBB) 0 gAPI 150 Spacing at 2 MHz (P16H_UNC) 1.65 g/cm3 2.65 0.2 ohm.m 200 Instance - 1 ( 6" ADN[1] RT) Instance -1 (6" IMPulse[1] RT ) Bulk Density Correction, Bottom (DRHB) Uncorrected Attenuation Resistivity for 34 inch -------------------------- Spacing at 2 MHz (A34H_UNC) - -0.8 g/cm3 0.2 0.2 ohm.m 200 Instance - 1 ( 6" ADN[1] RT) Instance -1 ( 6" IMPulse[l] RT ) Description: ARC +VDN Detail RT Format: Log (2in RT TVD RES+VDN) Index Scale: 5 in per 100 ft Index Unit: ft Index Type: SSTVD Creation Date 13 -Jan -2014 04:38:23 Ken Allen THE STATE (130VERNOR SEAN PARNELL 333 v-Nesi Sevenih Avenue Anchorage, Alaska 99501-3572 ,Main: 907.279.1433 ;n: iiJ7.27E 7.)42 Engineering Team Leader BP Exploration (Alaska), Inc. a -.t P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU Z-70 Sundry Number: 314-043 Dear Mr. Allen: Enclosed is the approved application for sundry approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the AOGCC grants for good cause shown, a person affected by it may file with the AOGCC an application for reconsideration. A request for reconsideration is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. Sincerely, Cathy . Foerster Chair DATED this day of January, 2014. Encl. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION `�'yJ( APPLICATION FOR SUNDRY APPROVAL 20 AAC 25.280 1. Type of Request: ❑ Abandon ❑ Plug for Redrill ❑ Perforate New Pool ❑ Repair Well ❑ Change Approved Program ® Suspend ❑ Plug Perforations ❑ Perforate ❑ Pull Tubing ❑ Time Extension ❑ Operations Shutdown ❑ Re -Enter Suspended Well ❑ Stimulate ❑ Alter Casing ❑ Other 2. Operator Name 4. Current Well Class 5. Permit To Drill Number BP Exploration (Alaska) Inc.213-133 ❑Exploratory ❑Stratigraphic ® Development ❑ Service 3. Address: 6, API Number: P.O. Box 196612, Anchorage, Alaska 99519-6612 50.029-23500-00-00 7. If perforating: • 8. Well Name and Number: What Regulation or Conservation Order governs well spacing in this pool? PBU Z-70 Will planned perforations require a Spacing Exception? YesNo 9. Property Designatior 10. Field / Pool(s): ADL 028262 & 028245 1 Prudhoe Bay / Prudhoe Bay 11. PRESENT WELL CONDITION SUMMARY Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD (ft): Effective Depth TVD (ft): Plugs (measured): Junk (measured): 14093' 8982' 14093' 8982' None None Casing Length Size MD TVD Burst Collapse Structural Conductor 80' 20" 46'- 126' 46'- 126' 1530 520 Surface 3717' 9-5/8" 46'- 3763' 46'- 3138' 5750 3090 Intermediate 11046' 7" 44' - 11090' 46'- 8604' 7240 5410 Production Liner Perforation Depth MID (ft): __T P erforation Depth TVD MY Tubing Size: Tubing Grade: Tubing MD (ft): None None None None Packers and SSSV Type: None Packers and SSSV None MD (ft) and TVD (ft): 12. Attachments: 13. Well Class after proposed work: ® Description Summary of Proposal ❑ BOP Sketch ❑ Detailed Operations Program ❑ Exploratory ❑ Stratigraphic ® Developmenty, ervice 14. Estimated Date for 15. Well Status after proposed work: Commencing Operation January 16, 2014 ❑ Oil ❑ WINJ ❑ WDSPL ❑ Plugged ❑ Gas ❑ GINJ ❑ GSTOR ❑ Abandoned 16. Verbal Approval: Date 1/16/2014 Commission Representative: Victoria Ferguson ❑ WAG ❑ SPLUG ® Suspended 17. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: Frank Roach, 564-4373 Printed Name: Ken Allen Title: Engineering Team Leader Email: Frank.Roack@bp.com Signature: y C" Phone: 564-4366 Date: 1Al Commission Use Only Conditions of approval: Notify Commission so that a representative may witness 2 N^ Ot13 Sundry Number: ❑ Plug Integrity ❑ BOP Test ❑ Mechanical Integrity Test ❑ Location Clearance Other: dRBDM MAY 0 9 2014 Spacing Exception Required? ❑ Yes d No Subsequent Form Required: _ L� 6 APPROVED BY Approved By: / C MMISSIONER THE COMMISSION Date: l` Z Form 10-403 Revised 10/2P 0/2 12 Approv, p 4o+ s I f months from the date of approval v`G/= 1Iz 3//4 - Submit In Duplicat Z-70 - Temporary Abandonment Procedure Summary 1. PU cement retainer and sufficient stinger to lay in 500' cement plug on top of retainer. 2. RIH with P&A assembly on 4" drillpipe and set retainer -10' above the 7" float collar (10996' MD). 3. Once the retainer is set, slack off 10k to confirm retainer is set. 4. Confirm injectivity below retainer by pumping at 2 bpm. Document pressures once stabilized. 5. Bleed off pressure from drillpipe, un -sting from the retainer and spot the squeeze cement -2 bbls from the end of the stinger. 6. Sting back into the retainer and squeeze away 25 bbls 15.8ppg class G cement per Schlumberger cement program. Stop displacement 2 bbls short to ensure cement below retainer. 7. Once pumped, un -sting from retainer and circulate surface-to-surface to clean well and drillstring. 8. Close the annular or upper pipe rams and pressure test well to 250 psi low, 3,500 psi for 5 and 30 minutes respectively. This will confirm the retainer as a base for the upper abandonment plug. 9. Pump 20 bbls 15.8 ppg class G cement and displace per Schlumberger cement program to ensure proper underdisplacement and ability to pull dry. 10. Pull out of the cement plug to 1 stand above the top (10400' MD) 11. Circulate the drillpipe and stinger clean by dropping a foam wiper ball ahead of a nut plug pill. 12. Displace well to clean 9.4 ppg brine. 13. POOH and lay down drillpipe. 14. RU and run 4-1/2" 12.6# L-80 NSCT kill string. 15. Make up tubing hanger per FMC rep. Land tubing hanger and run in lock down screws. 16. Install TWC and test from above and below to 250 psi low / 3500 psi high for 5 minutes low, 5 minutes high. 17. Nipple down BOPE, Nipple up the adapter flange and dry hole tree. Test adapter flange and tree to 5,000 psi with diesel. 18. RU DSM. Pull TWC. 19. RU circulating lines. Freeze protect well to 2100' MD. Allow diesel to u -tube reaching equilibrium. 20. Install BPV. Test from below to 250 psi low / 3500 psi high for 5 minutes low, 5 minutes high. 21. Secure well. Rig down and move off. Casing Size Openhole plug below cement retainer Basis: Cased hole volume below retainer + 100' below casing shoe per 20 AAC 25.112.b.2 Basis: (7.00 bbls required per regulation, but 25 bbls to be pumped to confirm uncontaminated cemen Total Cement below retainer) Total Cement 25.0 bbls, 140.5 cuft, 121 sks of 15.8 ppg Class G, Yield: 1.16 ft3/sk Volume: Casing Size Cased hole plug above cement retainer Basis: 500' cement plug on top of retainer (50' cement plug on top of retainer required per 20 AAC 25.112.b.2) Total Cement Volume: 20.0 bbls, 112.5 cuft, 97 sks of 15.8 ppg Class G, Yield: 1.16 ft3/sk TREE = , 4-1/16• "a, LHEA -? 4 Current ACTUATOR= UecF KB. ELEV = 470' 11 TOC per volumetric calcs I Prudhoe Bay UNIT WELL Z-70 PERMIT No: API No: SEC19 TWP11 N RGE13E FSL 4294' FEL 2751' DATE REV BY ODWANTS DATE REV BY COASA34TS 01/14/13 KEH Proposed P&A BP Exploration (Alaska) TREE = , 4-1116" VWI L! LEAD = FMC ACTUATOR = Electric KB. ELEV = 47.0' BF. ELEV = 56.2' KOP = 300' Max Angle = 108 @ 13671' Datum MD = DatumTVDsS= 8800' 20• CONDUCTOR H 126- 19-518*, 40#, L-80, BTC -M, D = 8 835- 1 17" CSG, 26#, L-80, VT HC, .0383 bpf, D = 6.276" I • A • --4100' E-1KA String: 4-t/2', 12.6#, L-80 5322 TOC per volumetric caics 10496' 500 ft balanced cement plug 15.8 ppg class G cement 10996' H HI uSS EZSV Cement Retainer 11090,I 1 125 bbls of cement squeezed below EZSV �I---II15.8ppg class G cement 14093' - s -1/s• TD Prudhoe Bay UNIT WELL: Z-70 PEFW No: API No: SEC19 TWP11N RGE13E FSL4294' FEL2757' BP Exploration (Alaska) THE STATE Alaska Oil and Gas ®f L b CGn)SeYV,%t1G1r1 CGI ISSion GOVERNOR SEAN PARNELL 333 West Seventh Avenue Anchorage, Alaska 99501-3572 Main: 907.279.1433 Fax: 907.276.7542 Ken Allen Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU Z-70 BP Exploration (Alaska), Inc. Permit No: 213-133 Surface Location: 4294' FSL, 2757' FEL, SEC. 19, TI IN, R12E, UM Bottomhole Location: 3176' FSL, 4955' FEL, SEC. 13, TI IN, R1 IE, UM Dear Mr. Allen: Enclosed is the approved application for permit to drill the above referenced development well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the AOGCC reserves the right to withdraw the permit in the event it was erroneously issued. Operations mast be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the AOGCC specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a AOGCC order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Sincerely, L Cathy P/ oerster Chair DATED this eday of September, 2013. STATE OF ALASKA RECEIVED ALASK, , OIL AND GAS CONSERVATION COMMIL ON PERMIT TO DRILL AUG 2 9 2013 20 AAC 25.005 1 a.Type of work: 1 b. Proposed Well Class: ® Development Oil ❑ Service - Wini ® Single Zone 1 c. Spe i e o sed for: ® Drill ❑ Lateral ❑ Stratigraphic Test ❑ Development Gas ❑ Service - Supply ❑ Multiple Zone ❑ Coalbed Gas ❑ Gas Hydrates ❑ Redrill ❑ Reentry ❑ Exploratory ❑ Service -WAG ❑ Service - Disp ❑ Geothermal ❑ Shale Gas 2. Operator Name: 5. Bond ® Blanket ❑ Single Well 11. Well Name and Number: BP Exploration (Alaska) Inc. Bond No 6194193 , PBU Z-70 3. Address 6. Proposed Depth: 12. Field / Pool(s) P.O. Box 196612, Anchorage, Alaska 99519-6612 MD 14038' 1 TVD 8983' Prudhoe Bay / Prudhoe Bay 4a. Location of Well (Governmental Section): 7. Property Designation (Lease Number): Surface: ADL 028262 & 028245 4294' FSL, 2757' FEL, Sec. 19, T11 N, R12E, UM 8. Land Use Permit: 13. Approximate Spud Date: Top of Productive Horizon: 891' FSL, 3684' FEL, Sec. 13, T11 N, R11 E, UM November 25, 2013 9. Acres in Property: 14.Distance to Nearest Property: Total Depth 3176' FSL, 4955' FEL, Sec. 13, T11 N, R11 E, UM 2480 & 2560 1730' 4b. Location of Well (State Base Plane Coordinates - NAD 27): 10. KB Elevation above MSL: 103.15' feet 15.Distance to Nearest Well Open Surface: x 599921 : y-5959100,' Zone- ASP4 GL Elevation above MSL: 56.2' feet to Same Pool: 600' 16. Deviated Wells: Kickoff Depth: 300' feet . 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Maximum Hole Angle: 98 degrees Downhole: 3745 ' Surface: 2897 18. Casing Program S ecifications Top - Setting Depth - Bottom Quantity of Cement, c.f. or sacks Hole Casing Weight Grade Couplingi Length MD TVD MD TVD (including stage data) 42" 20" 94# H-40 80' Surface Surface 80' 80' 260 sx Arctic Set (Approx.) 12-1/4" 9-5/8" 40# L-80 BTC -M 3676' Surface Surface 3723' 3133' 1347 sx Dee Crete 408 sx Class'G' 8-3/4" 7" 26# L-80 VamTop 11051' Surface Surface 11098' 8592' 576 sx LiteCrete 183 sx Class 'G' 6-1/8" 4-1/2" i 12.6# 13Cr80 VamTop 2740' 10948' 8453' 14038' 8983' Uncemented Sliding Sleeves, Swell Packers 19. PRESENT WELL CONDITION SUMMARY (To be completed for Redrill and Re-entry Operations) Total Depth MD (ft): Total Depth TVD (ft): Plugs (measured): Effective Depth MD (ft): Effective Depth TVD (ft): Junk (measured). Casing Length Size Cement Volume MD TVD Conductor/ Structural Surface Intermediate Production Liner Perforation Depth MD (ft): Perforation Depth TVD (ft): 20.Attachments: ® Property Plat ® BOP Sketch ® Drilling Program ❑ Time vs Depth Plot ❑ Shallow Hazard Analysis ® Diverter Sketch ❑ Seabed Report ® Drilling Fluid Program ® 20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: 22. 1 hereby certify that the foregoing is true and correct: Date Contact Frank Roach, 564-4373 Printed Name Ken Allen Title Engineering Team Leader Email Frank.Roack@bp.com Cr 564-4366 Signature _- .�w `" '� –� Phone Date Commission Use Only Permit To DrillAPI Number: ���Ye �' Z �- Permit Approva D P See cover letter for Number: 50 other requirements: Conditions of Approval: If box is checked, well may not be used to explore for, test, or produce coalbed methane, gas hydrates, or gas [� Other: P ��� ,1� 7�Q fs _/ contained shales: T dv Samples Req'd ❑,�Yes LJ No Mud Log Req'd: ❑Yes [�No // f HZS Measures: Ld Yes ❑ No Directional Survey Req'd: []Yes ❑ No ��Spacing ErNo exception req'd: ❑ Yes [TNo inclination -only svy Req'd: ❑ Yes per ao AAe 25', 0330 ) APPROVED BY e,,t& APPROVED BY OMMISSIONER THE COMMISSION Dae — Form 10-401 Revised 10/2 2 This permit is valid for 24 months from the date of approval (20 AAC 25. O`S m a c netAL To: Alaska Oil & Gas Conservation Commission From: Frank Roach, ODE Date: August 27, 2013 Re: Z-70 Permit to Drill The Z-70 well is scheduled to be drilled by Parker 273 in November 2013. The grassroots well is a horizontal producer targeting the Ivishak Zone 4. The planned well has three hole sections utilizing the ultra slim hole design. Intermediate casing will top set the Sag River formation and the production interval will be completed with a cementless liner using sliding sleeves and swellpackers. The liner is designed to allow selective production along the horizontal lateral to maximize oil recovery and minimize intervention requirements. The maximum anticipated surface pressure from the Ivishak/Sag with a full column of gas from TD to surface is —2897 psi (assumes 8.49 ppg as max pore pressure). This well will be drilled by Parker 273 using their 5000 psi four preventer BOP stack (3 rams and an annular). The BOP rams and annular will be tested to 3500 psi. A detailed operations summary is included with the permit application. Below is a brief summary of planned drilling operations: 1. Move in Parker 273 and function test diverter. 2. Drill 12-1/4" surface hole to 3723 ft MD. 3. Run 9-5/8" surface casing and cement to surface. 4. Nipple up BOPE and test to 3,500 psi. 5. Pressure test surface casing to 3,500 psi. Drill out the shoe and perform LOT. 6. Drill 8-3/4" intermediate hole to top of the Sag River at 11,098 ft MD. 7. Run T' casing and cement to —650 ft TVD above UG_Na (TOC at 4883 ft MD). Pressure test casing to 3,500 psi. 8. Drill out of intermediate shoe and perform FIT. 9. Drill 6-1/8" horizontal production hole through Zone 4 of the Ivishak to TD at —14,068 ft MD. 10. Run a 4-1/2", solid, chrome, production liner with approximately 12 swell packers and 12 sliding sleeves. 11. Pressure test liner top packer to 3500 psi 12. Run 4-1/2" chrome completion tubing. Sting into liner tieback sleeve and set production packer. 13. Pressure test the tubing and the inner annulus to 3500 psi each. 14. Rig down and move off the well. In addition to a planned well summary, a proposed completion diagram, directional plan, planned diverter layout, wellhead, and tree diagrams are attached to the permit application. If there are any questions concerning information on Z-70, please do not hesitate to use the contact information below. Frank Roach Office: 907-564-4383 Cell: 907-306-9023 Home: 907-854-2321 Z-70 PTD Page 1 8/27/2013 Email: Frank. Roach@bp.com Planned Well Summary Well Z-70 ell Ob Oil Producer Target Ivishak' - [ Current Status Grass Roots Well - Conductor Currently Installed Estimated Start Date: 11/25/2013 Time to Complete: 141 Days Surface Northing Eastin Offsets TRS Location 5959100 599921 1 985' FNL / 2197' FWL 11 N 12E sec 19 Planned KOP: I 300' MD/197' TVDss Planned TD: 14038' MD/8880' TVDss Rig: Parker 273 BF -RT: 47.0' RTE (ref MSL): 103.15 Directional — Schlumberger P21 KOP: 300' MD Northing Easting TVDss Offsets TRS Tgt 1 TSGR 5960852 594097 -8480' 841' FSL / 3604' FEL 11 N 11 E sec 13 Tgt 2 TSAD 5960901 594016 -8650' 891' FSL / 3684' FEL 11 N 11 E sec 13 BHL 5963170 592715 -8880' 3176' FSL / 4955' FEL 11 N 11 E sec 13 Planned KOP: I 300' MD/197' TVDss Planned TD: 14038' MD/8880' TVDss Rig: Parker 273 BF -RT: 47.0' RTE (ref MSL): 103.15 Directional — Schlumberger P21 KOP: 300' MD Maximum Hole Angle: -50° in the 8-3/4" intermediate section -98° in the 6-1/8" production section Close Approach Wells: Zero close approach wells Survey Program: Surface to 1200 ft MD = GYD-GC-SS (single shot gyro) 1200 ft MD to TD = MWD+IFR+MS Nearest Property Line: 1730 ft Nearest Well within Pool: -600'- from Z -09A Z-70 PTD Page 2 8/27/2013 Formation Tops & Pore Pressure Estimate (SOR) 'f tYdLLl.iit�� Formation Estimated Formation To TVDss Depth Uncertainty (+/- TVD ft) Fluid Type (for sand) Most Likely Pore Pressure (EMW pp G1 265 +/-10 ft. No 8.40 SV6 1020 +/-10 ft. No 8.40 EOCU 1570 +/-10 ft. No 8.40 SV5 1670 +/-10 ft. No 8.40 BPRF 1740 +/-30 ft. BPRF 8.60 SW 1785 +/-30 ft. Hydrates/Wtr 8.60 SV3 2260 +/-30 ft. Hydrates/Wtr 8.60 SV2 2445 +/-30 ft. Hydrates/Wtr 8.60 SV1 2775 +/-30 ft. Hydrates/1Ntr 8.60 9 5/8" Surface Csg 3030 +/-30 ft. Hydrates/Wtr 8.60 UG4 3070 +/-30 ft. Poss Hvy Oil/Wtr 8.70 UG4A 3125 +/-30 ft. Poss Hvy Oil/Wtr 8.70 UG3 3440 +/-30 ft. Poss Hvy Oil/Wtr 8.70 Fault #1 3615 +/-100 ft. Poss Hvy Oil/Wtr 8.70 UGI 3890 +/-30 ft. Poss Hvy Oil/Wtr 8.70 UG Ma 4175 +/-30 ft. Poss Hvy Oil/Wtr 8.70 UG_Mb1 4250 +/-30 ft. Poss Hvy Oil/Wtr 8.70 UG_Mb2 4330 +/-30 ft. Poss Hvy Oil/Wtr 8.70 UG Mc 4380 +/-30 ft. Poss Hvy Oil/Wtr 8.70 SB Na 4445 +/-30 ft. Poss Hvy Oil/Wtr 8.70 SB Nb 4475 +/-30 ft. Poss Hvy Oil/Wtr 8.70 SB_Nc 4510 +/-30 ft. Poss Hvy Oil/Wtr 8.70 SB CIA 4620 +/-30 ft. Poss Hvy OII/Wtr 8.70 SB 013d 4820 +/-30 ft. Poss Hvy Oil/Wtr 8.70 SB_OBf_Base 4970 +/-30 ft. Poss Hvy Oil/Wtr 8.70 CM -2 5300 +/-50 ft. Poss GCM 8.70 Top Overpressure 5885 +/-30 ft. Poss GCM 9.50 CM -1 5925 +/-30 ft. Poss GCM 10.00 TLBK 6195 +/-30 ft. Poss GCM 10.00 Fault #2 6265 +/-100 ft. Poss GCM 10.00 THRZ 6410 +/-30 ft. Poss GCM 10.00 TKLB 6605 +/-30 ft. Poss GCM 10.00 TKC4 6720 +/-30 ft. Wtr/Poss Oil 10.00 TKB/LCU 6835 +/-30 ft. Poss GCM 10.00 TMLV 6870 +/-30 ft. Poss GCM 10.00 TKNG 7280 +/-30 ft. Poss GCM 10.00 Fault #3 (HSF) 7480 +/-100 ft. Poss GCM 10.00 TJG faulted absent +/-30 ft. Poss GCM 10.00 TJF 7610 +/-30 ft. Poss GCM 10.00 TJE 7765 +/-30 ft. Poss GCM 10.00 Fault #4 7950 +/-100 ft. Poss GCM 10.00 TJD 8020 +/-30 ft. Poss GCM 10.00 TJC 8230 +/-30 ft. Poss GCM 10.00 TJB 8330 +/-30 ft. Poss GCM 10.20 TJA 8390 +/-30 ft. Poss GCM 10.20 TSGR 8480 +/-30 ft. Yes Gas 8.49 Z-70 PTD Page 3 8/27/2013 �_3•% F% LiNe.dt /41,-,/ ti t 7" Intermed Csg 8485 +/-30 ft. Yes Gas 8.49 TSHU 8510 +/-30 ft. Yes Gas 8.46 TEIL 8615 +/-30 ft. Yes Gas 8.36 TSAD (46P) 8650 +/-30 ft. Yes Gas 8.36 45N 8685 +/-30 ft. Yes Gas 8.33 44N 8720 +/-30 ft. Yes Gas 8.30 43N 8749 +/-50 ft. Yes Gas 8.28 PGOC 8750 +/-30 ft. Yes Gas 8.28 42N 8780 +/-30 ft. Yes Oil/Gas 8.25 41 N 8820 +/-30 ft. Yes Oil/Gas 8.24 Invert 1 8850 +/-30 ft. Yes Oil/Gas 8.24 POWC 8851 +/-30 ft. Yes Oil/Gas 8.25 41N invert 8825 +/-30 ft. Yes Oil/Gas 8.24 42N invert 8780 +/-30 ft. Yes Oil/Gas 8.25 43N (invert) 8752 +/-30 ft. Yes Oil/Gas 8.26 Revert1 8750 +/-30 ft. Yes Oil/Gas 8.28 43N (revert1) 8760 +/-30 ft. Yes Oil/Gas 8.26 42N (reveri 8815 +/-30 ft. Yes Oil/Gas 8.25 41 N (revert1) 8850 +/-30 ft. Yes Oil/Gas 8.24 TD 8880 +/-30 ft. Yes Oil/Gas 8.30 Casing/Tubing Program Hole Liner / Wt/Ft Grade Conn Burst Collapse Length Top Bottom Size Tbg O.D.(psi) 0'-500' 8.6 - 9.2' 30-50 50-80 psi) <1000 MD / TVDss MD / TVDss - 20" 94 H-40 - 1530 520 80' Surface 80724' 12-1/4" 9-5/8" 40# L-80 BTC -M 5750 3090 3676' Surface 3723'/3030' 8-3/4" 7" 26# L-80 VarnTop 7,240 5,410 11051' Surface 11098'/8489' 6-1/8" 4'/2" 12.6# 13Cr-80 VamTop 8,430 7,500 2740' 10948'/8350' 14038'/8880' 8646'- Section TD 10.4 - 10.5' 150' laPL 18-26 <4 <10 1 <20 9-10 10953'/8355' Tubing 4'/2" 12.6# 13Cr-80 VamTop 8,430 7,500 10906' Surface (^'5' into liner TBS Mud Program Surface Hole Mud Properties: Drillplex hole section Depth Interval Density sity 1 12-1/4" Hole Section Depth Interval Depnsity LSYP 2x3-6 rpm YP z Ib/100 ft API FL ml/30min Chlorides m /I pH 0'-500' 8.6 - 9.2' 30-50 50-80 <15 <1000 10.8 500'- Base Perm 8.8 - 9.2 30-50 50-80 <15 <1000 10.8 Base Perm - Section TD 9.1 9.4 ' 25-45 40-60 <15 <1000 10.8 Intermediate Mud Properties: LSND 1 8-3/4" hole section Depth Interval Density sity PV YP API FL HTHP FL MBT pH 3723'-7006' MD To -200' MD Above 9.0-9.5 10-18 18-26 <8 NC <18 9-10 CM2 7006'-8646' To 200' MD Above 10.2-10.3 10-18 18-26 <8 NC <18 9-10 HRZ 8646'- Section TD 10.4 - 10.5' 10-18 18-26 <4 <10 1 <20 9-10 Production Mud Properties: Water Based Polymer Fluid FloPro Or PowerPro 6-1/8" hole section Z-70 PTD Page 4 8/27/2013 Logging Program 12 1/<"Surface: Density PV YP Low Shear None Cased Hole: Depth Interval Tail: Open hole volume + 40% excess + 80 ft shoe track Total Cement API FL Rate MBT pH 444.1 bbls, 2493 cuft, 1347 sks of 11.0 ppg DeepCRETE, Yield: 1.85 ft3/sk (ppg) (cp) (Ib/100ft2) 37.9 bbls, 213 cuft, 183 sks of 15.8 ppg Class G, Yield: 1.17 ft3/sk Tail 84.2 bbls, 473 cuft, 408 sks of 15.8 ppg Class G, Yield: 1.16 ft3/sk Viscosity 11098' -TD 8.6 - 8.8 a <12 10-20 <10 >15000 <4 8-9.5 Logging Program 12 1/<"Surface: Sample Catchers - not required for surface hole Drilling: Dir/GR/Res Oen Hole: None Cased Hole: None 8-%" Intermediate: Sample Catchers - as required by Geology Drilling: Dir/GR/Res/Neu/Den a Oen Hole: None Cased Hole: None 6-'/8" Production: Sample Catchers - as required by Geology Drilling: Dir/GR/Res/Neu/Den Oen Hole: None Cased Hole: None Cement Program Casing Size 9-5/8" 40#, L-80 Surface Casing Basis: Lead: Open hole volume + 250% excess through permafrost and 40% excess below permafrost. Basis: Port collar used if hole conditions dictate Lead TOC: Surface Tail: Open hole volume + 40% excess + 80 ft shoe track Total Cement Tail TOC: 1000 ft MD above casing shoe Total Cement Lead 444.1 bbls, 2493 cuft, 1347 sks of 11.0 ppg DeepCRETE, Yield: 1.85 ft3/sk Volume: Tail 37.9 bbls, 213 cuft, 183 sks of 15.8 ppg Class G, Yield: 1.17 ft3/sk Tail 84.2 bbls, 473 cuft, 408 sks of 15.8 ppg Class G, Yield: 1.16 ft3/sk Casing Size 7" 26#, L-80 Intermediate Casing Basis: Lead: Open hole volume + 30% excess Lead TOC: 650 ft TVD above U Na Tail: Open hole volume + 30% excess + 80 ft shoe track Tail TOC: 1000 ft MD above casing shoe Total Cement Lead 181.5 bbls, 1019 cuft, 576 sks of 11.5 ppg LiteCRETE, Yield: 1.77 ft3/sk Volume: Tail 37.9 bbls, 213 cuft, 183 sks of 15.8 ppg Class G, Yield: 1.17 ft3/sk Casing Size .6#, 13Cr-80 Production Liner Basis: LN/ACEMETLESSPRODUCTION LINER. Isolation achieved with swellpackers and liner top Surface and Anti -Collision Issues Surface Shut-in Wells: All wells pass Major Risk anti -collision scans. Z-65 (-r15' west of Z-70) and Z-40 (-60' east of Z-70) both will Z-70 PTD Page 5 8/27/2013 be shut-in to move Parker 273 over the Z-70 conductor slot. Hydrogen Sulfide Z -Pad is considered an H2S site. Recent H2S data from the pad is as follows: Faults Formation Fault Well Name H2S Level Date of Reading #1 Closest SHL Well H2S Level Z-65 40 1/5/2013 #2 Closest SHL Well H2S Level Z-40 26 11/6/2012 #1 Closest BHL Well H2S Level Z -08A 18 1/25/2010 #2 Closest BHL Well H2S Level Z -07B 20 2/2/2013 Max. Recorded H2S on Pad/Facility Z-67 200 3/28/2012 Other Relevant H2S Data H2S Levels of 0-120 ppm have been recorded at Z -pad Retest of Z-67 was 80 ppm on 5/5/2012 Z-61 nearest offset not yet POP'd as of 3/21/13 Faults Formation Fault MD TVDss Est. Throw Throw Uncertainty Encountered Intersect Intersect Direction Fault #1 - UG3 4,606 3,615 10-20 ft. NorthEast +/- 150' M.D. Fault #2 — TLBK 8,668 6,265 10-20 ft. South +/- 150' M.D. Fault #3 - Highland State 10,010 7,480 240 ft. West +/- 150' M.D. Fault — TJG Fault #4 — TJE 10,516 7,950 40 South +/- 150' M.D. Drilling Waste Disposal There is no annular injection in this well. ' Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS -04. Any metal cuttings will be sent to the North Slope Borough. Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to DS -04 for injection. Haul Class I waste to DS -04 and/or Pad 3 for disposal / Contact the GPB Environmental Advisors (659-5893) for guidance. Well Control The 12-1/4" surface hole will be drilled with a diverter. The 8-3/4" intermediate and 6-1/8" production hole will be drilled with well control equipment consisting of 5,000 psi working pressure pipe rams (2), blind/shear rams, and annular preventer capable of handling the maximum potential surface pressures. Based upon calculations below, BOP equipment will be tested to 3500 psi. BOP test frequency for Z-70 will be 14 days with function test every 7 days. Except in the event of a significant operational issues that may effect well integrity or pose safety concerns, an extension to the 14 day BOP test period should not be requested. Z-70 PTD Page 6 8/27/2013 Intermediate Interval Maximum anticipated BHP 3745 psi at the TSGR 8485' TVDss (8.49 ppg EMW) Maximum surface pressure 2897, Psi (.10 psi/ft gas gradient to surface) from TSGR at 8485' TVDss 8.49 EMW , Kick tolerance 25 bbls with 13.2 ppg frac gradient Assumes 8.41 ppg pore pressure in the Ssg + 0.5 ppg kick intensity and 10.6 ppg MW. Planned BOP test pressure Rams test to 3500 psi/250 psi. Annular test to 3500psi/250 psi 7" Casing 3500 psi surface pressure Integrity Test — 8-3/4" hole LOT after drilling 20'-50' of new hole 7" Casing The VBRs will be changed to 7" rams to accommodate the 7" casing string. Production Interval Maximum anticipated BHP 3745 psi @ TSGR at 8485' TVDss (8.49 ppg EMW) Maximum surface pressure 2897 psi (10 psi/ft gas gradient to surface) Kick tolerance Infinite with >9.6 ppg frac gradient Assumes an 8.49 ppg max pore pressure in the Sag/lvishak + 0.5 ppg kick intensity and 8.6 ppg MW. Planned BOP test pressure Rams test to 3500 psi/250 psi. Annular test to 3500psi/250 psi Integrity Test — 6-1/8" hole FIT after drilling 20'-50' of new hole, target 12.5 ppg FIT 4-1/2" Liner Top Packer 3500 psi surface pressure Planned completion fluids 8.5 ppg seawater / 6.8 ppg Diesel Variance Request To avoid the risk of plugging the flow line with large rocks and wood encountered while drilling surface hole, it is requested to drill without a flow paddle for the first portion of the surface hole. After drilling past the larger rocks and wood sections, the flow paddle will be put back in the flow line (<1000 ft). Procedures/Safeguards with paddle removed: • Fluid levels will be monitored in the pits for both gains and losses while drilling. Alarms will be set to indicate if gain or loss of more than 5 bbls has occurred. • The well will be monitored for flow when the pumps are off at each connection. • Over 50 surface holes have been drilled on Z -pad, including the recent Z-40 and Z-50 wells in 2012, providing a high level of confidence in the ability to drill surface hole on the pad without incident. • The planned 8.5 - 9.4 ppg fluid will provide over balance to formation fluid. Z-70 PTD Page 7 8/27/2013 Z-70 General Operational Summary Proposed Drilling Rig Operations: 1. MIRU Parker 273. Nipple up diverter spool and function test diverter. 2. Prepare pits with Drilplex Mud and PU DP as required and stand back in derrick. 3. MU 12-'/4' drilling assembly with MWD/GR/Res and directionally drill surface hole to Base Permafrost. Gyro survey until magnetic interference clears up. CBU and short trip to surface. Change bit and dial up/down motor bend as required. 4. RIH and continue drilling 12-%" surface hole to section TD at 3723' MD in SV1 shale ~40' TVD above UG4. CBU until hole is clean. POOH on elevators (if beackreaming is required, RIH until able to POOH on elevators). Lay down BHA. 5. Run and fully cement 9-%" 40# BTC -M casing to surface, displacing cement with drilling fluid. A TAM port collar may be run at 500' as a contingency. 6. ND diverter and NU casing head and spacer spool. NU BOPE (Configured from top to bottom: annular preventor, 2-%" x 5'/z" VBR, blind/shear, mud cross, 2-%" x 5'/" VBR). Test BOPE to 250 psi low, 3500psi high. Give the AOGCC 24 hrs notice prior to testing. 7. Pressure test 9-%" surface casing and wellhead to 250 psi low / 3500 psi high for 5 minutes low / 30 minutes high (This will test casing, wellhead, and OA valves). V 8. Make up 8-%" drilling BHA with bent housing motor and MWD/GR/RES/DEN/NEU/PWD and RIH to float collar, picking up drillpipe as required to TD intermediate interval. 9. Drill out shoe track and displace well to LSND drilling fluid. Drill 20' of new formation and perform LOT. Minimum requirement for leakoff is 13.20ppg EMW. 10. Drill ahead to +/-200' and above the CM2, weight up mud to 10.2ppg. 11. Ensure mud weight of 10.2ppg prior to drilling ahead. Continue drilling to +/- 500' MD above the HRZ, weight up to 10.4ppg if not already there. 12. Continue drilling to TD at the Top SAG. At TD, CBU, and condition hole as necessary to run 7" casing. POOH. 13. Change out upper rams to 7" fixed rams. Test with 7" test joint to 250 psi low, 3,500 psi high for 5 minutes each. RU and run 7" 26# L-80 Vam Top HC casing to TD. Cement the 7" casing to 650' TVD above the Na sand. After bumping the plug on the cement job, pressure test the 7" casing to 3,500 psi for 30 charted minutes. 14. Install 7" packoff and test void to 250 psi low / 5,000 psi high. 15. Freeze -protect the 9-%" x 7" annulus, once the lead cement has reached 500 psi compressive strength. Confirm that the OA is open immediately and before freeze protecting. 16. PU 6-%8" drilling BHA build assembly and RIH to the float collar. 17. Displace the well to 8.6ppg Power -Pro SF fluid. 18. Drill out shoe and 20' of new formation and perform the planned FIT to 12.5ppg EMW (9.6ppg EMW provides infinite kick tolerance). Drill ahead, per directional proposal and rig site geologist to landing point. 19. CBU and trip to surface. PU 6-%" lateral assembly and RIH to TD. MAD Pass as needed once at TD. 20. Drill ahead in lateral section per rig site geologist to TD. 21. Circulate bottoms -up, short trip, circulate and condition hole for liner run. POOH. 22. MU and run 4-%" 12.6# 13CR liner to TD. Displace liner and liner annulus to MOBM. Z-70 PTD Page 8 8/27/2013 23. Set liner top packer and test liner top packer to 250 psi low / 3500 psi nigh for 5 minutes low / 30 minutes high. displace well to clean seawater above the liner top. 24. POOH, L/D drillpipe and the liner running tool. 25. R/U and run a 4-1/", 12.6#, 13Cr, VamTop tubing completion with GLMs, downhole gauge and iWire. Space out and land the tubing with tubing tail inserted into the liner tieback sleeve. 26. Make up tubing hanger per FMC Rep. Land the tubing hanger, and run in lock down screws. 27. Reverse circulate brine and corrosion inhibitor into the tubing x casing annulus. 28. Drop ball/rod and set packer and individually test the tubing to 250 psi low / 3500 psi high for 5 minutes low / 30 minutes high. Bleed tubing pressure to 1500 psi and test annulus to 250 psi low / 3500 psi high for 5 minutes low / 30 minutes high. Record each test. 29. Shear the DCK valve. 30. Install TWC and test from above to 250 psi low / 3500 psi high for 5 minutes low / 30 minutes high. 31. Nipple down the BOPE. Nipple up the adaptor flange and tree and test to 5,000 psi with diesel. 32. RU DSM. Pull TWC. 33. RU circulating lines. Freeze protect the well to 2,000' TVD and allow diesel to U-tube reaching equilibrium. 34. Install a BPV. 35. Secure the well. Rig down and Move Off. Post Rig 1. Pull BPV 2. MIRU slickline. Pull the ball and rod / RHC plug. 3. Install Gas lift valves. 4. MIRU CTU. Open sliding sleeves per NWD program for flowback (contingency CIBP if well isolation valve in production liner fails). 5. MIRU ASRC test separator. Flow back well per NWD program. 6. Install well -house, instrumentation and flowline. Z-70 PTD Page 9 8/27/2013 Z-70 Drilling Critical Issues POST THIS NOTICE IN THE DOGHOUSE I. Well Control / Reservoir Pressures: A. Surface Hole: No overpressure is expected in the surface hole and hydrates have been a minimal ` concern in this area of the pad. No free gas is present on this side of the Highland State Fault. B. Intermediate Hole: Expect overpressure in the Colville starting at 5885 ft TVDss. The overpressure is expected to increase to 10.0 ppg. 10.0 ppg is also expected through the permeable sands of the Kuparuk. Mud weight must be increased according to the well program to maintain overbalance throughout the intermediate section. C. Production Hole: The highest anticipated pore pressure in the production hole will be encountered in the Sag River at 8.49 ppg. The interval will be drilled with a minimum of 8.6 ppg drilling fluid to provide adequate trip margin. Higher pore pressures may exist in the Shublik, but this is a non permeable formation and is not considered a risk for flow. II. Lost Circulation/Breathing A. Surface Hole: Lost circulation is considered a minimal risk if mud properties remain in specification. B. Intermediate Hole: Lost circulation is a possibility due to 4 fault crossings which includes the Highland State fault with -240 ft of throw. Breathing is also common in the Colville. The wellbore has been designed with a maximum mud weight of 10.4 ppg for over balance and wellbore stability. 10.4 ppg has historically been considered low enough to help prevent losses and breathing, however, ECD must be carefully managed to further reduce the risk. C. Production Hole: No fault crossings are planned in the production hole. Lost circulation risk is considered low to moderate. Avoid cutting corners of driller's polygon at fault crossing to ensure more perpendicular crossing. Additionally, be prepared for breathing in the Shublik if fractures exist in the area. This has been an occasional problem across Prudhoe, but is considered a low risk on Z -pad. III. Kick Tolerance/Integrity Testing A. With the planned mud weights, the kick tolerance for the intermediate section is 25 bbis with a 13.2 ppg leak -off, and the production section is infinite with a 9.6 ppg leak -off. If planned LOT/FIT values are not achieved, do not drill ahead without risk assessment and proper authorization. All kick tolerances are calculated based on a 0.5 ppg kick intensity over likely pore pressure. IV. Integrity Testing Test Point Test Depth Test pe EMW (Ib/gal) 9-%" Shoe 20' 50' from the 9-5/8" Shoe LOT 13.2 ppg minimum (25 bb1s)14.4 ppg target (50 bbis) 7" shoe 20'-50' from the 7" shoe FIT 9.6 ppg minimum (infinite) 12.5 ppg target (infinite) V. Hydrogen Sulfide A. As Z -Pad is considered operational guidelines. 2012. Z-65 recorded 4( surface). an H2S site, refer to the ADW "Hydrogen Sulfide" SOP for the appropriate The max recorded H2S readings on the pad were 200 ppm in Z-67 March ppm 01/05/2013 and Z-40 recorded 26 ppm 11/06/2012 (closest wells at Z-70 PTD Page 10 8/27/2013 VI. Faults Formation Fault Encountered Inter se Intersect Est. Throw D Throw on Uncertainty ct Fault #1 - UG3 4,606 3,615 10-20 ft. NorthEast +/- 150' M.D. Fault #2 — TLBK 8,668 6,265 10-20 ft. South +/- 150' M.D. Fault #3 - Highland State Fault — TJG 10,010 7,480 240 ft. West +/- 150' M.D. Fault #4 — TJE 10,516 1 7,950 40 South +/- 150' M.D. VII. Anti -Collision Issues A. The Z-70 planned well path passes all major risk anti -collision. CONSULT THE Z -PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION. Z-70 PTD Page 11 8/27/2013 TREE = 4-1/16" V%ELLTOR= GeZ-76 Proposed Lfa M MI - d7 n' 20' CONDUCTOR H 108" 9-5/8', 40#, L-80, BTGM, ID = 8.835' H 3723' Minimum ID = 3.813" 4-1/2" X Nipple @ —2000' MD 14-1/2' NDPG SINGLE -SENSOR SUB, ID = x.xxx' H 10790' 4-1/2' TBG, 12.6#, 13 -Cr, VT, .0152 bpf, D = 3.958" 10963' 7- CSG, 26#, L-80, VT HC, .0383 bpf, D = 6.276" 11098' 14ea: 4-1/2" HES OBM Swell Packers �o TBD, Tary Tan Mary 15ea: 4-112" HES Siding Sleeve TBD', TBI, TBI, TBI, TBD'. TBI. TBI. & TBI 4-1/2' BKR ISOLATION VALVE, 0=1.00 3-1/2" HES OBM Anchor Swelpacker VT XO 3-1/2' VT box x 4-1/2' BT pin 4-1/2' LNR, 12.6#, 13CR-85 Hydra 521, ID = [SAFt r Y NOTES: '*'CHROME TBG"' TBD H9-5/8' TAM PORT COLLAR 2000` 4-1/2" HES X NP, D = 3.813' 4883' TOC --650' TV D above Sb_� / -1100' MD below surface shoe GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 7 TBD 3317 49 KBG4-5 DUM RK 1' 14036' 6 TBD 4718 50 KBG4-5 DUM RK 1' 5 TBD 5399 50 KBG-4-5 DCK2 RK 1" 4 TBD 6111 50 KBG4-5 DUM RK 1" TBD 6729 22 KBG4-5 DUM RK 1" 2TBD 7481 22 KBG4-5 DUM RK 1" 1 10720 TBD 22 KBG-4-5 DUM RK 1" 10768' 4-112' HES X NP, D = 3.813' 10826' 7" X 4-112" HES TNT PKR 13946' D = 3.870' 10863' 4-1/2' HES X NIP, ID = 3.813" 10940' 4-112" HES X NIP, ID = 3.813" 10948' 7' X 5' BKRZXPPKR& Flexbck HGRw/TEBACKSLV, D=4.4' 10953 - WLEG 13936' XO 4-1/2' Hydra 521 x 4-1/2" VT� I I 13946' BHI Locator Sub D=3.91" VT 13968 13970' XO 4-1/2' VT x 3-1/2" VT 13982 14012' I 14024' 4-1/2" Float Collar BT 14038' 14036' 4-1/2' Float Shoe BT Prudhoe Bay LW WELL: Z-70 PERMIT No: API No: SEC19 TVVPI IN RGE13E FSL 4291' FEL 2757' DATE REV BY ODMMENTS DATE REV BY ODW ENTS 04114113 FVR Proposed Completion BP Exploration (Alaska) Z-70 (P21) Proposal Geodetic Report (Def Plan) Schlumherger Report Date: May 20, 2013 - 01:28 PM Survey / DLS Computation: Minimum Curvature / Lubinski _ Client: BP Exploration Alaska Vertical Section Azimuth: 300.220 ° (True North) Field: Prudhoe Bay Unit - WOA Vertical Section Origin: 0.000 ft, 0.000 ft Structure /Slot: Z -PAD / Slot (SF) TVD Reference Datum: Rotary Table Well: Plan Z-70 (SF) n � J� 2 TVD Reference Elevation: 103.150 ft above MSL .. Borehole: Plan Z-70 (SF)�/�o�/n u ' Ground Elevation: 56.200 ft above MSL -- API#: 50029xxxxx00 151:�J Magnetic Declination: 19.983 ° Survey Name: Z-70 (P21) Total Gravity Field Strength: 1001.9929mgn (9.80665 Based) Survey Date: May 20, 2013 Total Magnetic Field Strength: 57605.385 nT Tort / AHD / DDI / ERD Ratio: 211.340 '/ 9136.433 ft / 6.480 / 1.017 Magnetic Dip Angle: 80.978 ° Coordinate Reference System: NAD27 Alaska State Plane, Zone 04, US Feet v Declination Date: October 01, 2013 Location Lat / Long: N 70° 17' 51.62360", W 149° 11' 26.97047" Magnetic Declination Model: BGGM 2012 Location Grid N/E Y/X: N 5959100.100 ftUS, E 599920.930 ftUS North Reference: True North CRS Grid Convergence Angle: 0.7618 ° Grid Convergence Used: 0.0000 ° Grid Scale Factor: 0.99991134 Total Corr Mag North ->True North: 19.9825 ° 265.00 368.15 Local Coord Referenced To: Well Head Comments MD Incl Azim True TVDSS TVD VSEC NS EW TF DLS Directional Northing Easting (ft) (°) (°) (ft) (ft) (ft) (ft) (ft) (°) ('/100ft) Difficulty Index (ftus) (ftuS) RTE •- 0.00 0.00 180.00 -103.15 0.00 0.00 0.00 0.00 160M N/A 0.00 5959100.10 599920.93 KOP Cry 1/100 300.00 0.00 180.00 196.85 300.00 0.00 0.00 0.00 180M 0.00 0.00 5959100.10 599920.93 G1 366.15 0.68 180.00 265.00 368.15 -0.20 -0.41 0.00 180M 1.00 0.00 5959099.69 599920.94 Cry 2/100 400.00 1.00 180.00 296.84 399.99 -0.44 -0.87 0.00 180M 1.00 0.00 5959099.23 599920.94 - 500.00 3.00 180.00 396.78 499.93 -2.20 -4.36 0.00 180M 2.00 1.12 5959095.74 599920.99 Cry 3/100 600.00 5.00 180.00 496.53 599.68 -5.71 -11.34 0.00 187.5M 2.00 1.75 5959088.76 599921.08 700.00 7.89 187.50 595.89 699.04 -10.55 -22.50 -0.90 190.96M 3.00 2.26 5959077.59 599920.33 800.00 10.83 190.96 694.55 797.70 -16.30 -38.53 -3.58 9.13R 3.00 2.63 5959061.53 599917.86 900.00 13.80 192.96 792.24 895.39 -22.94 -59.39 -8.04 7.18R 3.00 2.93 5959040.62 599913.68 Cry 3/100 1000.00 16.78 194.26 888.68 991.83 -30.45 -85.01 -14.27 101.7313 3.00 3.17 5959014.91 599907.79 1100.00 16.43 204.69 984.53 1087.68 -35.79 -111.86 -23.74 91.73R 3.00 3.37 5958987.94 599898.68 SV6 1136.98 16.43 208.61 1020.00 1123.15 -36.44 -121.21 -28.43 87.97R 3.00 3.43 5958978.54 599894.12 1200.00 16.61 215.24 1080.43 1183.58 -35.90 -136.39 -37.90 81.61 R 3.00 3.52 5958963.23 599884.85 1300.00 17.29 225.27 1176.10 1279.25 -30.79 -158.53 -56.71 72.02R 3.00 3.66 5958940.85 599866.34 1400.00 18.43 234.33 1271.30 1374.45 -20.47 -178.21 -80.11 63.39R 3.00 3.78 5958920.85 599843.20 1500.00 19.95 242.21 1365.75 1468.90 -4.97 -195.39 -108.06 55.95R 3.00 3.89 5958903.31 599815.49 1600.00 21.77 248.92 1459.21 1562.36 15.67 -210.02 -140.47 49.67R 3.00 3.99 5958888.25 599783.28 1700.00 23.82 254.59 1551.41 1654.56 41.39 -222.06 -177.24 44.44R 3.00 4.08 5958875.73 599746.67 EOCU 1720.36 24.26 255.63 1570.00 1673.15 47.24 -224.19 -185.25 43.49R 3.00 4.10 5958873.49 599738.69 1800.00 26.04 259.38 1642.09 1745.24 72.12 -231.47 -218.29 40.1 R 3.00 4.17 5958865.77 599705.76 SV5 1831.15 26.76 260.72 1670.00 1773.15 82.71 -233.86 -231.93 38.9R 3.00 4.20 5958863.20 599692.15 1900.00 28.39 263.45 1731.03 1634.18 107.78 -238.22 -263.49 36.48R 3.00 4.26 5958858.42 599660.65 Base Perm -1910.21 28.64 263.83 1740.00 1643.15 111.70 -238.76 -268.34 36.15R 3.00 4.27 5958857.81 599655.82 SV4 1961.80 29.90 265.66 1785.00 1888.15 132.24 -241.07 -293.45 34.55R 3.00 4.31 5958855.18 599630.74 2000.00 30.85 266.93 1817.95 1921.10 148.27 -242.31 -312.73 33.46R 3.00 4.34 5958853.67 599611.48 2100.00 33.39 269.93 1902.64 2005.79 193.47 -243.72 -365.86 30.91 R 3.00 4.42 5958851.56 599558.37 2200.00 36.00 272.55 1984.86 2088.01 243.27 -242.44 -422.75 28.76R 3.00 4.49 5958852.08 599501.48 2300.00 38.65 274.86 2064.38 2167.53 297.53 -238.48 -483.24 26.92R 3.00 4.57 5958855.23 599440.95 2400.00 41.34 276.92 2140.99 2244.14 356.10 -231.86 -547.15 25.34R 3.00 4.63 5958861.01 599376.96 2500.00 44.07 278.77 2214.47 2317.62 418.82 -222.57 -614.32 23.99R 3.00 4.70 5958869.40 599309.67 Drilling Office 2.6.1166.0 Prudhoe Bay Unit - WOA\Z-PAD\Plan Z-70 (SF)\Plan Z-70 (SF)\Z-70 (P21) 5/20/2013 1:33 PM Page 1 of 3 Comments MD Incl Azim True TVDSS TVD VSEC NS EW TF DLS Directional Northing Easting (ft) (°) (") (ft) (ft) (ft) (ft) (ft) (°) (°/1001t) Difficulty Index (ftuS) (ftuS) SV3 2564.34 45.84 279.86 2260.00 2363.15 461.28 -215.21 -659.18 23.21R 3.00 4.74 5958876.16 599264.73 2600.00 46.82 280.44 2284.62 2387.77 485.51 -210.67 -684.57 22.81R 3.00 4.76 5958880.37 599239.28 End Cry 2659.16 48.46 281.36 2324.48 2427.63 526.76 -202.40 -727.49 HS 3.00 4.80 5958888.07 599196.26 SV2 2840.91 48.46 281.36 2445.00 2548.15 655.50 -175.61 -860.87 HS 0.00 4.87 5958913.08 599062.55 SVl 3338.56 48.46 281.36 2775.00 2878.15 1007.99 -102.26 -1226.08 HS 0.00 5.03 5958981.56 598696.43 9 W" Csg - 3723.11 48.46 281.36 3030.00 3133.15 1280.38 -45.58 -1508.29 HS 0.00 5.12 5959034.48 598413.52 UG4 3783.43 48.46 281.36 3070.00 3173.15 1323.10 -36.68 -1552.55 HS 0.00 5.13 5959042.78 598369.14 UG4A 3866.37 48.46 281.36 3125.00 3228.15 1381.85 -24.46 -1613.42 HS 0.00 5.15 5959054.20 598308.12 UG3 4341.40 48.46 281.36 3440.00 3543.15 1718.33 45.56 -1962.03 HS 0.00 5.24 5959119.57 597958.64 Cry 3/100 4411.65 48.46 281.36 3486.58 3589.73 1768.09 55.91 -2013.59 88.13R 0.00 5.25 5959129.23 597906.96 4500.00 48.60 284.89 3545.10 3648.25 1831.34 70.94 -2078.04 85.79R 3.00 5.28 5959143.40 597842.32 4600.00 48.89 288.86 3611.05 3714.20 1904.47 92.76 -2149.95 83.17R 3A0 5.32 5959164.26 597770.13 Fault #1 4606.01 48.91 289.10 3615.00 3718.15 1908.91 94.23 -2154.23 63.02R 3.00 5.32 5959165.68 597765.83 4628.85 49.00 290.00 3630.00 3733.15 1925.84 100.00 -2170.47 83.39R 3.00 5.33 5959171.23 597749.52 _ 4700.00 49.28 292.80 3676.55 3779.70 1979.01 119.63 -2220.56 81.56R 3.00 5.35 5959190.19 597699.18 End Cry 4775.05 49.65 295.72 3725.34 3828.49 2035.73 143.07 -2272.55 HS 3.00 5.38 5959212.93 597646.88 UGl 5029.36 49.65 295.72 3890.00 3993.15 2228.93 227.17 -2447.15 HS 0.00 5.41 5959294.70 597471.20 UG Ma 5469.52 49.65 295.72 4175.00 4278.15 2563.33 372.75 -2749.35 HS 0.00 5.47 5959436.23 597167.12 UG_Mbl 5585.35 49.65 295.72 4250.00 4353.15 2651.33 411.06 -2828.87 HS 0.00 5.49 5959473.48 597087.10 UG_Mb2 5708.91 49.65 295.72 4330.00 4433.15 2745.20 451.92 -2913.70 HS 0.00 5.50 5959513.20 597001.74 UG -Mc 5786.13 49.65 295.72 4380.00 4483.15 2803.86 477.46 -2966.72 HS 0.00 5.51 5959538.03 596948.40 SB Na 5886.51 49.65 295.72 4445.00 4548.15 2880.13 510.66 -3035.64 HS 0.00 5.52 5959570.31 596879.05 SB__Nb 5932.85 49.65 295.72 4475.00 4578.15 2915.33 525.99 -3067.45 HS 0.00 5.53 5959585.21 596847.04 SB_Nc 5986.90 49.65 295.72 4510.00 4613.15 2956.40 543.86 -3104.56 HS 0.00 5.53 5959602.59 596809.69 SB OA 6156.79 49.65 295.72 4620.00 4723.15 3085.46 600.05 -3221.20 HS 0.00 5.55 5959657.22 596692.33 SB_0Bd 6465.67 49.65 295.72 4820.00 4923.15 3320.13 702.21 -3433.27 HS 0.00 5.58 5959756.54 596478.94 SB_0Bf Base 6697.33 49.65 295.72 4970.00 5073.15 3496.13 778.83 -3592.32 HS 0.00 5.60 5959831.03 596318.90 CM -2 --7206.99 49.65 295.72 5300.00 5403.15 3883.33 947.39 -3942.23 HS 0.00 5.65 5959994.91 595966.81 Top OP 8110.48 49.65 295.72 5885.00 5988.15 4569.73 1246.20 -4562.53 HS 0.00 5.72 5960285.42 595342.65 CM -1 8172.25 49.65 295.72 5925.00 6028.15 4616.66 1266.63 -4604.94 HS 0.00 5.72 5960305.28 595299.97 Cry 41100 8397.08 49.65 295.72 6070.57 6173.72 4787.46 1340.98 -4759.30 179.42L 0.00 5.74 5960377.57 595144.65 8400.00 49.53 295.72 6072.47 6175.62 4789.68 1341.95 -4761.30 179.42L 4.00 5.74 5960378.51 595142.64 8500.00 45.53 295.66 6139.97 6243.12 4863.20 1373.92 -4827.76 179.38L 4.00 5.77 5960409.59 595075.77 TLBK 8576.51 42.47 295.61 6195.00 6298.15 4916.17 1396.92 -4875.67 179.34L 4.00 5.79 5960431.95 595027.56 8600.00 41.53 295.60 6212.46 6315.61 4931.84 1403.71 -4889.85 179.33L 4.00 5.80 5960438.55 595013.30 Fault 2 „ 8668.75 38.78 295.55 - 6265.00 6368.15 4976.03 1422.84 -4929.84 179.29L 4.00 5.81 5960457.15 594973.06 8700.00 37.53 295.52 6289.57 6392.72 4995.27 1431.17 -4947.26 179.271- 4.00 5.82 5960465.24 594955.53 -" 8800.00 33.53 295.43 6370.93 6474.08 5053.17 1456.16 -4999.71 179.2L 4.00 5.84 5960489.53 594902.76 THRZ 8846.38 31.68 295.38 6410.00 6513.15 5078.07 1466.88 -5022.28 179.16L 4.00 5.85 5960499.95 594880.05 8900.00 29.53 295.31 6456.15 6559.30 5105.27 1478.57 -5046.95 179.1 L 4.00 5.87 5960511.30 594855.23 9000.00 25.53 295.17 6544.81 6647.96 5151.31 1498.28 -5088.75 178.97L 4.00 5.89 5960530.46 594813.17 TKLB 9066.00 22.89 295.05 6605.00 6708.15 5178.27 1509.76 -5113.26 178.86L 4.00 5.90 5960541.61 594788.52 End Cry 9088.33 22.00 295.00 6625.63 6728.78 5186.76 1513.37 -5120.98 HS 4.00 5.90 5960545.12 594780.75 TKC4 9190.10 22.00 295.00 6720.00 6823.15 5224.73 1529.48 -5155.54 HS 0.00 5.90 5960560.77 594745.98 TKB/LCU 9314.14 22.00 295.00 6835.00 6938.15 5271.00 1549.12 -5197.65 HS 0.00 5.91 5960579.84 594703.62 TMLV 9351.88 22.00 295.00 6870.00 6973.15 5285.08 1555.09 -5210.46 HS 0.00 5.91 5960585.65 594690.73 TKNG 9794.08 22.00 295.00 7280.00 7383.15 5450.04 1625.10 -5360.59 HS 0.00 5.91 5960653.64 594539.69 Fault 3 10009.79 22.00 295.00 7480.00 7583.15 5530.51 1659.25 -5433.83 HS 0.00 5.92 5960666.81 594466.02 TJF 10150.00 22.00 295.00 7610.00 7713.15 5582.82 1681.45 -5481.43 HS 0.00 5.92 5960708.37 594418.13 TJE 10317.17 22.00 295.00 7765.00 7868.15 5645.18 1707.91 -5538.19 HS 0.00 5.92 5960734.08 594361.03 Fault 4 10516.70 22.00 295.00 7950.00 8053.15 5719.62 1739.50 -5605.93 HS 0.00 5.93 5960764.76 594292.88 TJD 10592.20 22.00 295.00 8020.00 8123.15 5747.78 1751.46 -5631.56 HS 0.00 5.93 5960776.37 594267.09 TJC 10818.69 22.00 295.00 8230.00 8333.15 5832.28 1787.31 -5708.46 HS 0.00 5.93 5960811.20 594189.73 Drilling Office 2.6.1166.0 Prudhoe Bay Unit - WOA\Z-PAD\Plan Z-70 (SF)\Plan Z-70 (SF)\Z-70 (P21) 5/20/2013 1:33 PM Page 2 of 3 Comments MD Incl Azim True TVDSS TVD VSEC NS EW TF DLS Directional Northing Easting (ft) V) V) (ft) (ft) (ft) (ft) (ft) V) (°NOOft) Difficulty Index (ftuS) (ftuS) TJB 10926.55 22.00 295.00 8330.00 8433.15 5872.51 1804.39 -5745.07 HS 0.00 5.93 5960827.79 594152.90 TJA 10991.26 22.00 295.00 8390.00 6493.15 5896.65 1814.63 -5767.04 HS 0.00 5.94 5960837.74 594130.79 TSGR 11088.30 22.00 295.00 8479.98 8583.13 5932.86 1830.00 -5799.99 HS 0.00 5.94 5960852.66 594097.65 Z-70 Tgt 1 Sag 11088.33 22.00 295.00 8480.00 8583.15 5932.87 1830.00 -5800.00 HS 0.00 5.94 5960852.66 594097.64 7" Csg --11098.33 22.00 295.00 8489.27 "" 8592.42 5936.60 1831.58 -5803.40 HS 0.00 5.94 5960854.20 594094.22 Cry 11/100 11118.33 22.00 295.00 8507.82 8610.97 5944.06 1834.75 -5810.19 24.6R 0.00 5.94 5960857.28 594087.39 TSHU 11120.68 22.24 295.29 8510.00 8613.15 5944.94 1835.13 -5810.99 24.34R 11.00 5.94 5960857.64 594086.58 11200.00 30.39 302.38 8581.06 8684.21 5980.01 1652.31 -5841.56 17.95R 11.00 5.96 5960874.42 594055.79 TEIL 11240.26 34.63 304.78 8615.00 8718.15 6001.59 1864.30 -5859.56 15.93R 11.00 5.99 5960886.17 594037.63 - TSAD (46P) 11284.06 39.28 306.87 8650.00 8753.15 6027.79 1879.73 -5880.89 14.26R 11.00 6.01 5960901.31 594016.11 11300.00 40.98 307.53 8662.18 8765.33 6037.98 1885.94 -5889.07 13.76R 11.00 6.02 5960907.41 594007.84 45N 11331.02 44.30 308.69 8685.00 8788.15 6058.79 1898.91 -5905.59 12.9R 11.00 6.03 5960920.16 593991.15 44N 11382.42 49.82 310.34 8720.00 8823.15 6095.90 1922.86 -5934.59 11.78R 11.00 6.05 5960943.72 593961.84 11400.00 51.72 310.84 8731.12 8834.27 6109.30 1931.72 -5944.93 11.46R 11.00 6.06 5960952.44 593951.38 43N 11429.95 54.95 311.64 8749.00 8852.15 6132.87 1947.56 -5962.99 10.98R 11.00 6.07 5960968.03 593933.12 PGOC 11431.69 55.14 311.69 6750.00 8853.15 6134.27 1948.51 -5964.06 10.96R 11.00 6.07 5960968.97 593932.03 42N 11488.68 61.30 313.04 8780.00 8883.15 6181.60 1981.15 -5999.82 10.24R 11.00 6.10 5961001.13 593895.85 11500.00 62.52 313.29 8785.33 8888.48 6191.34 1987.98 -6007.11 10.12R 11.00 6.10 5961007.86 593888.47 ON 11590.41 72.33 315.12 8820.00 6923.15 6272.24 2046.15 -6066.84 9.42R 11.00 6.14 5961065.23 593827.97 11600.00 73.37 315.30 8822.83 8925.98 6281.08 2052.65 -6073.30 9.37R 11.00 6.14 5961071.64 593821.43 11700.00 84.23 317.09 8842.23 8945.38 6375.24 2123.35 -6141.08 9.02R 11.00 6.16 5961141.43 593752.72 End Cry 11737.83 88.34 317.74 8844.68 8947.83 6411.30 2151.14 -6166.62 HS 11.00 6.19 5961168.88 593726.81 Cry 6/100 11905.99 88.34 317.74 8849.56 8952.71 6571.58 2275.54 -6279.66 24.62R 0.00 6.21 5961291.74 593612.14 Tgt 2 Inv 11936.46 90.00 318.50 8850.00 8953.15 6600.58 2298.22 -6300.00 26.12R 6.00 6.22 5961314.16 593591.50 12000.00 93.42 320.18 8848.10 8951.25 6660.58 2346.39 -6341.37 26.17R 6.00 6.23 5961361.77 593549.50 End Cry 12086.14 98.16 322.53 8839.21 8942.36 6742.34 2414.86 -6396.12 HS 6.00 6.25 5961429.49 593493.85 12223.39 98.16 322.53 8820.00 8923.15 6866.19 2521.11 -6477.55 HS 0.00 6.27 5961534.65 593411.02 12505.04 98.16 322.53 8780.00 8883.15 7124.11 2742.41 -6647.14 HS 0.00 6.29 5961753.64 593238.52 Cry 6/100 12591.71 98.16 322.53 8767.69 8870.84 7203.47 2810.50 -6699.33 122.72R 0.00 6.30 5961821.03 593185.44 12600.00 97.90 322.96 8766.53 8869.68 7211.06 2817.03 -6704.30 122.78R 6.00 6.30 5961827.50 593180.38 12700.00 94.62 328.02 8755.63 8858.78 7300.90 2898.91 -6760.58 123.33R 6.00 6.33 5961908.61 593123.02 12800.00 91.31 333.03 8750.45 8853.60 7387.08 2985.81 -6809.70 123.59R 6.00 6.35 5961994.84 593072.76 Tgt 3 Rev 12839.47 90.00 335.00 8750.00 8853.15 7419.88 3021.28 -6826.99 124.49R 6.00 6.36 5962030.08 593055.00 12900.00 87.94 337.99 8751.09 8854.24 7468.66 3076.77 -6851.12 124.43R 6.00 6.37 5962085.24 593030.13 13000.00 84.56 342.96 8757.62 8860.77 7544.78 3170.78 -6884.45 124.11 R 6.00 6.39 5962178.79 592995.55 End Cry 13040.67 83.20 345.00 8761.96 8865.11 7573.99 3209.65 -6895.61 HS 6.00 6.40 5962217.50 592983.88 13193.04 83.20 345.00 8760.00 8883.15 7681.38 3355.78 -6934.78 HS 0.00 6.41 5962363.09 592942.78 13530.82 83.20 345.00 8820.00 8923.15 7919.46 3679.76 -7021.60 HS 0.00 6.44 5962685.85 592851.67 13792.61 83.20 345.00 8851.00 8954.15 8103.98 3930.84 -7088.88 HS 0.00 6.46 5962936.00 592781.06 TD/4-1/2"Lnr 14037.50 / 83.20 345.00 8880.00 d 8983.15 8276.59 4165.72 -7151.83 0.00 6.48 5963170.00 592715.00 Legal Description: Northing (Y) Easting (X) Surface: 4293.6 FSL 2756.7 FEL S12T111N R12E UM 5959100.100 599920.930 Target TSag: 841 FSL 3603 FEL 13 T11N R11BUM 5960852.660 594097.640 BHL: 3176 FSL 4956 FEL 13 T1 1N R11EUM 5963170.000 592715.000 Drilling Office 2.6.1166.0 Prudhoe Bay Unit - WOA\Z-PAD\Plan Z-70 (SF)\Plan Z-70 (SF)\Z-70 (P21) 5/20/2013 1:33 PM Page 3 of 3 by 1 0 Schlumberger WELL FIELD STRUCTIAiE Z-70 (P21) Prudhoe Bay Unit - WOA Z -PAD Maq�reGC Paamerers Surtace Location NA027 Al M Stare PI—Zore O4, IJS Feet Mbcelhm" MOEeI: aGGM 2012 Dip: W.M. Dare: October 15, 2013 Lal: N 701751.624 Noiiq: 5959100.1011U5 GriE Conv: 0.762' Sbb Sbt(SF) ND RN: Rorery Tade(103.15fl above MSL) Meq Doc'. 19 %1' FS: 5784 T Lon. W 14911 %9]o E -W: 59%20.93 nt15 Scale Fact 0.89991134 %an.. Z-70 (P21) SW Date: Apri117, 2013 0 6000 6600 7200 7800 O RTE ^ 8400 KOP Cry 11100 .._.._.._._.._..-.._.._.._.. CD CD Cry 21100 (p Cry 31100 II 0) Cm 31100 Co .._.._.._ (n 1200 vb.................... > 9000 H ................ _.._.._._.._.._.._.. 8400 (P2000 6000 6600 7200 7800 Vertical Section (ft) Azim = 300.22° Scale = 1:600(ft) Origin = 0 N/ -S, 0 E/ -V 2400 _.._.._._.._.._..,------------------------- •_.._.._.._.._.._.._..-.._{._.._..-.._.._.._.._.._.._,._.._.._.._.._.._.._.._.._>._ y:.-::-:....-:...................................v.............................................................................................................. 2400 ._.._.. _.;_.. ........ ... .Z_.._.. _.E _.. _.._.._.. _.._.._.._.._:_.. _.. _.. _.._.. _..-.._.._:._.._.._.. _.. _.. _.. _.._.._:.............................. :End Cm .._.._.._...................... ._.:.......................... ......................... :.......................... :.......................... :._ 1: :ab .�..�..� .�..�.._.._.._.._.._ - - 4A _..�..�..�..�..� ..................�.. �.._ _..�..�..�..�..�........� .....................-. - - 9 5/8" Csg ^ 3600 ............:..................................................'a:::-::-:.:--::-::-::-::-::-::-::-::.-:'::'::-::'::.:::.:::-::-::--::-::-::-::-::-::-::-::-:'. 3600 s✓ O ;Cry 3/100 End Cry II..-.._.._.t-.._.._..-.._.._.._.._.._.�_.._.._.._.. .. ..................... i.................................................... .._.._.._.:-.._.._.._.._.._.._.._.._.:-.._.._.._.._.._.._.._.._:_.. .._.._.. _.._.._:._.._.._.. _.._.._.. _.._.. _:._.._.._.._.._.._.._.._.. - - - - ............ - -...........................------- - - - - - - - - - m U ::_:: :: •: .......... .. .. .. .: .. .. .. .. .. .. .. .. o •:. .. .. .. .. .. .. .. .. :. . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -.................- - - - 4800 I— :: -::-:: �:::::.-::.-:: -:: �:: �::.-:: �::-::.-::�:: �::- ::-::-:: -:: -:: -.'- ::-::-::-': �.. RA-::- ..:...... ....... -..... -::-T.................... ........... .:.... 4800 ........... .......................... ......................... _.._.._.._.._.._.._.._ _.._.._.._.._.._.._.... - - .._.._.._.:.......................... i......................... .......................... :._..- -. --.._.._.._.._ _.. _.._.. _.._.._.._..-. _ _ -2 „ C� a�00 6000 .,...r..i......,............. .............o:=:._s>=:._, _ .5. . ,. ... m .i------------ ...... _.._.._.._. = = I>- 6000 Fauk 2 ........... ..................................................... _.._.._..-.._........... ................... _.._. _ �...-.._.._.._.._. _ _ ...................................... :......................... ...................................................... :._.._ Ri•. End Cry .._.._.._.:_.._.. .................... :_.._.._.................. _..................................................... :._.._.. L _ ._.._.------_ � 7200 5 ........................... .......................................... ................................... E............. ............... ......d...... ......... .................E.... 7200 ........... s.......................... :......................... ;......................... s.......................... :............. _ _. _ _ Fauk 3 .._.._.._.:.......................... :......................... :.................................................... :._.._........... JE auk 4 :........ F._.._. .._.._.._.:.......................... :......................... _.................................................... . ..... ......... 8400 .._.._.._.:_.._.._.._.._.._.._.._.._.:_.._.._.._.._.._.._.._.._.:_.._.._.._.._.._.._.._.._:._.._.._.._.._.._.._.._.._:._.._.._.._.._.._.._.. .._:._ _ :...................................:..................................:.................................. _.._.._.._..:.._.._.._..___.._.._.._.._.._.._.._.._ 8400 .............................. .......................... (P21) V 0 1200 2400 3600 4800 6000 Vertical Section (ft) Azim = 300.22° Scale = 1:1200(ft) Origin = 0 N/ -S, 0 E/ -V 4000 A 3000 A A Z 0 0 0 2000 by WELL STRUCTURE 0 Schlumberger FIELD Z-70 (P21) Prudhoe Bay Unit - WOA Z-PAD Magnetic Parameters SURace Loc 7 N D2]Nlaaka S— Plana,— 04, US Feet n Model. BGGM 2012 Dip 809]8° Dale October 15, 2013 Lat: N ]01]51.624 Northing. 595910Sims G,k Con v: 0]62° Sb�. ella ep 6bl (SF) NORei: Rotary Table(103.1 Sk above MSL) Mag Dec. 19.961° FS'. 5]�49nT Lon: W14911269]0 Eaali 599920.93 ttUS Scale Fact: 099991134 Plan: Z]0(P21� Sry Date: Npi11],2013 -7000 -6000 -5000 -4000 -3000 -2000 -1000 0 J: v v v 1000 0 7000 -6000 -5000 -4000 -3000 -2000 -1000 0 <<< W Scale = 1:1000(ft) E >>> KOp ry 1 —cry 1106 Cry 3110C Cry 3/ 00 000 000 000 000 100 G Oilfield Services, Alaska Schlumberger Drilling & Measurements 2525 Gambell, Suite 400 Anchorage, AK 99503 Tel (907) 273-1700 Fax (907) 561-8367 Monday, May 20, 2013 Frank Roach BP Exploration (Alaska) Inc. Schlumberger PBU WOA Z-70 (P21) Parker 273 Close Approach Analysis We have examined the potential intersections of the subject well with all other potentially conflicting wells, according to the BPA Directional Survey handbook (BPA -D-004) dated 09/99. Method of analysis: 1. A list of wells to be analyzed is created in Compass by performing a global scan with an initial search radius of two hundred feet with an increment of one hundred feet for every one thousand feet of measured depth in the subject well. 2. Wells are analyzed using the Compass Anti -collision module (BP Company setup) with major risk safety factors applied. For problem wells that are plugged and abandoned or that can be shut in, risk-based safety factor may be used, with client notification. 3. All depths are relative to the planned well profile. Survev Proaram Survey Tool Program Date 5+20'2013 From TO (usft) [usm Survey (Wellbore) Tool Name Description 40.95 1,200.00 PO, =2 I Z-70 (Plan Z-70) GYD-GC-SS Gyrodata gyro single shots 1,200.00 2,700.00 R,-� _ 1 Z-70 (Plan Z-70) hfm h1wD - Standard 1,200.00 3,725.00 '_ - _ I Z-70 (Plan Z-70) h1wD+iFR+h1S LIWD + IFR + Muth Station 3,725.00 5,22500 r _. _ I Z-70 (Plan Z-70) hiwD kM/D - Standard 3,725.00 11,100.00 Pla ==1 Z-70 (Plan Z-70) MD+IFR-MS KMD + IFR + Multi Station 11,100.00 12,60r -0 G _: ==1 Z-70 (Plan Z-70) MSD P.WD- Standard 11,100.00 14,0- - _ _ _ :. = 1 Z-70 (Plan Z-70) h1wD+IFR+MS; VIN14D + IFR + Multi Station Survey Interval Surface hole: 1 per stand — 90 ft Intermediate hole: 1 per stand — 90 ft Production hole: 1 perjoint — 30 ft when planned DLS is >5deg/100', or when a stand's survey shows >5deg/100'. ( or per client request ) 1 per stand —93' when planned DLS is <5/100. Close Approach Analysis results: Under method (2), note: All wells pass major risk. All data documenting these procedures is available for inspection at the Drilling & Measurements Drilling Engineering Center (DEC). Close Approach Drilling Aids to be provided: A drilling map and traveling cylinder will be provided. Checked by: Scott DeLapp 05/20/2013 Plan- in #21 Z-70 (Plan Ivi Z-70 (SF) v6.1/Pla, ,-70) 0 1000 2000 3000 4-000 500C 600( X00 601 901 100 --10 -60 -5C -4-C -3C -2C IC 2Cluu o 0 0 0 CD CD 0 00 0 0 0CD 0 0 COMPASS 5000.1 Build 61 5/20/2013 2:36 PM Project: Prudhoe Bay m Site: PB Z Pad�,� Well: Plan Ivi Z-70 (SF) v6.1 N ^� "ry P n� , 1 Wellbore: Plan Z 70 ti �° tiN '', ti N N N 1 Design: Plan #21 Z-70 ' �% 2 tie 0°� N `O 5N -1 38 1 24 2 �� �? 40 13 20 �1 500 #2 ro pld17 Sch a - 19 28 r u 2 1 rn 50 - '�T�� O 36 _ gW 622 �`o n 6 6 �d �2 "'8 Sc'A �u /d" 'q 1 400 o 3 96 3 1 16 4 0 ? 6 6 S�Bj 300N FS 0 34 0 6q 3 6 40 y v 121- 10 0 1 2 � -�, � 76ti �2 cm a 9a o N 8 °® 38 8 n1Z 20 (? la r31 2 v .1 c 2000 MM S4 .— . 3�0 A -10 �qr121Z-112 - - / 7 48 8 7p 8 74 8 y D M 3$. ry a 5 A2 44 12 6 1 8 8 100 cy o n�®� w 1, 4: �. > CDa ti v ti -- av 6 0\ �8 9 5/8" o �� S 1 30 N 10 6 ' ` 16 8 10 N o ro �o CO0 6 10 32 36 16 - Z '� 8 4 100 a N o - 4Q �� o 68 001— CO --- ---- ti 1 0 — N14 roi 34 1-64, Z 20 00 --�� -- — - — - °lp 1 7 N i� a, 7 � ti� _- a 6 2 14 `A 0 (n -- 0 -- -- __ . 6 28 1 2 �° 22 �6 -300 6 O.. - 16 3 $ --- --- r,0. 4 0 -- p It - r 24 dFs `222 16 A2 G 18 40 26 26 -400 -- -- — - g0 40 38 28 18 28 30 I a Cp ro 18 46 6 "O 3 14 500 --- _ 2 '0 68 __ s 4 48 $1220 _ 2 36 20 42 1 -600 -, '' _ ch 2-211 - 22`>b O 44 A #32-211 32 -700 4 tg \,\ -10 .1 Aird >Q/�i242 n2 800 IZ-1 B 1� 61 46 `�\ \ • \` -1600 O'i2�500 -1400 3 33q -1200 -1100 -1000 ada000202 -800 70001APB2600 2 -500 -400 2 fi g' -200 -100 0 100 /Z- 40 200 - Z-34 �6jA�a� 00 �� West(-TEast(+) (200 usft/in) 1318 242 f Project: Prudhoe Bay Site: PB Z Pad Well: Plan Ivi Z-70 (SF) v6.1 Wellbore: �w, (tip Plan Z-70 3�eti ti Design: Plan #21 Z-70 y2 i 332_ 5�9 2 2 'F , °� 1800 3 --- - 5� ` 0 2 9 42 54 5 Qac 3 A 1600 - — — — -- - 5536 5 go 50 1400 - -- - - - - N h� o n m o N P2 Q 4 88 3 CO m -48 5 1200 -- o 0 # 2A Z "i 0 ^� 8 2� 28 CD �6'� IP\an 1 �N �4r, 6 48q 1000 -maat"� 0 �$Fl --- o 20 a� ID 4� -- m 0 4� lb 26 O 800 - 4 cc rb o 0`O 2 2 4 2 N m oCD o �N b ° 3a 40 42 + 600 -- � a o ti 39 2 3 324 40 Z400 �' D __._ No asti • to c cy -cramp -- 36 3 2 82 - �' 0 �j 9 99 v N Q,v3 ti� (n O w n M CO ry 0 0 3 2 200 - --- -- - -- -- - v v N C\1 o S4 36 m OD n M 6834 0 -- "CY (0 o ^ m co co M `9 5/8" 0 OCn N w A N O O N O O 6 n 15 2 2 8 O OD N 6 ? N -200 a. � .. 8 o 38 44 -400 N O r W 6 66 40 `°cP Q� 6QQ N 2 46 O 0 Q 0 m 0 n 6,9 4. 2 42 � 448 2 -600 0, - - -' d° -_ 0 J2 2 4 1 (N) 6 TO 402 0 800 �q B A11 rn 3,i d'0?/ 1/Z- 1APB214- 12 4000 3800 3600 3400 3200 3000 2800 2600 2400 2200 20( 1800 1600 '?� 1400 <%�� 1000 ODg 600 400 23300 West( -)/East(+) (4g0 usft/in) rf i2i 21-191Z- 19A ?1? Z-21 6/Z-16 Project: Prudhoe Bay Site: PB Z Pad Well: Plan Ivi Z-70 (SF) A.1 ,� ryrym Wellbore: Plan Z-70 N /V °P Design: Plan #21 Z-70 o� Q O / IZ '. 971 11 /2 0 3 /Z-19 221 Ib 5500 RP 62 / 8SA ,. N 9�c \ N N s3 g0 �� ti 6D 9p 660 58 y4 76. 5 \ 65 7� 0 �2 5000 - G 62 -- - -- - --- - 8 ha �g 8 6 5 6 74_5J 12 k 52 72 5 aj9 11� '... o 6 4 .6Z �? $� 4 8 8�2 50 70 9p -3 0 62 N 4500 0- -- F --- 1 v6 IP 7 - 68- 5 88 e , - o �� meq,- A �ti 4 u�y�7 7p SFl g 66 66 Q 7t3 0 56 o 4000 p10 h \ - 19Iv 1 -- --- - 04 - - -- 68 CD oo � 1 4) L 62 L,28 j 5 0 74 1�gG 8 50 66 3500 �. O °' '�t` 0 I - 8 52 4 0a G� $9 Z20BIZ-08 \Q�a� p B 56 8 g 66 50 6 3000 - q o -� ---- - b - 6264 5 4 - — -- _ O \ m^p 4'6Q 6 62 0� f 0 �3�Iti�a g° 6 5 7 s 2500 + -- -- 113 1Q - 0 o 6 61 60 j ---- ^� j M o� ho �� 9 �Q\� 6 A` B 6 6 58 Z oo o tk ;, 6 56 6 2000 � Ce ���� ti b 1 - 0 9 ----- aSu m ^^o a �Ci 5� 5 1500 ___._. - b 0 Amo cf� ^roa m �m N 0 -- 5 6 -- ,-- Cb 1000 - - TV AD � o 500 -- --- n, o vii 66 cc --� hOv - .' N ry. - -- 6i3 0 - — QQ O� O m W I'r -500 - -- O N - cP - - 021 2 �6 4 ;2 0 .1 � Z 1000 91 4 ZZ-19A 13 Kup Z 6„ �s i Soh 3� f -aw0 -oJUV -oVVV -1— -,000 -000U -000U -000U -000U -4000 -4000 -JODU -3000 -2bUU o;YUM "?U0 -'c3JgUifU vi 200 ''ZDV, 500 I N West( -)/East(+) (1000 usft/in) o o, ', 7o Project: Prudhoe Bay Site: PB Z Pad Well: Plan Ivi Z-70 (SF) v6.1 Wellbore: Plan Z-70 Z -40/Z-40 65 Design: Plan #21 Z-70 Z -18/Z-18 �„ , _ Z-66/Plan #19 Z-66 Approved 60 Z-YorZ-4U „- Z 40/Z 40 55045 55- 50- 45 o 0 40 .ro ro Q m U4 35 m c m U _p 30— C: m U 25— Z -65/Z-65 20- 15- 10- 5- 0' 0151050 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 Measured Depth (200 usft/in) Company: North America - ALASKA - BP Project: Prudhoe Bay Reference Site: PB Z Pad Site Error: 0.00usft Reference Well: Plan Ivi Z-70 (SF) v6.1 Well Error: 0.00usft Reference Wellbore Plan Z-70 Reference Design: Plan #21 Z-70 BP Anticollision Report Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Output errors are at Database: Offset TVD Reference: Well Plan Ivi Z-70 (SF) v6.1 Z-70 plan P273 @ 103.15usft (Parker 273) Z-70 plan P273 @ 103.15usft (Parker 273) True Minimum Curvature 1.00 sigma EDM R5K - Alaska PROD - ANCP1 Offset Datum Reference Plan #21 Z-70 =filter type: GLOBAL FILTER APPLIED: All wellpaths within 200'+ 100/1000 of reference To nterpolation Method: MD Interval 5.00usft Error Model: ISCWSA )epth Range: Unlimited Scan Method: Tray. Cylinder North Results Limited by: Maximum center -center distance of 1,599.06usft Error Surface: Elliptical Conic Survey Tool Program Date 5/20/2013 From To (usft) (usft) Survey (Wellbore) Tool Name Description 46.95 1,200.00 Plan #21 Z-70 (Plan Z-70) GYD-GC-SS Gyrodata gyro single shots 1,200.00 2,700.00 Plan #21 Z-70 (Plan Z-70) MWD MWD - Standard 1,200.00 3,725.00 Plan #21 Z-70 (Plan Z-70) MWD+IFR+MS MWD + IFR + Multi Station 3,725.00 5,225.00 Plan #21 Z-70 (Plan Z-70) MWD MWD - Standard 3,725.00 11,100.00 Plan #21 Z-70 (Plan Z-70) MWD+IFR+MS MWD + IFR + Multi Station 11,100.00 12,600.00 Plan #21 Z-70 (Plan Z-70) MWD MWD - Standard 11,100.00 14,037.50 Plan #21 Z-70 (Plan Z-70) MWD+IFR+MS MWD + IFR + Multi Station 5/20/2013 2:20:43PM Page 2 of 6 COMPASS 5000.1 Build 61 BP Anticollision Report Company: North America - ALASKA - BP Local Co-ordinate Reference: Well Plan Ivi Z-70 (SF) v6.1 Project: Prudhoe Bay TVD Reference: Z-70 plan P273 @ 103.15usft (Parker 273) Reference Site: PB Z Pad MD Reference: Z-70 plan P273 @ 103.15usft (Parker 273) Site Error: 0.00usft North Reference: True Reference Well: Plan Ivi Z-70 (SF) v6.1 Survey Calculation Method: Minimum Curvature Well Error: 0.00usft Output errors are at 1.00 sigma Reference Wellbore Plan Z-70 Database: EDM R5K - Alaska PROD - ANCP1 Reference Design: Plan #21 Z-70 Offset TVD Reference: Offset Datum Summary Reference Offset Centre to No -Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (usft) from Plan Offset Well - Wellbore - Design (usft) (usft) (usft) (usft) PB V Pad V-119 - V-119 - V-119 Out of range PB Z Pad Plan Ivi Z-42 (NK) v6 - Plan Z-42 - Plan #8 Z-42 455.11 460.00 171.48 8.33 163.14 Pass - Major Risk Plan Ivi Z-55 (SB) v6 - Plan Z-55 - Plan #4 Z-55 v6 629.03 615.00 76.51 11.55 64.96 Pass - Major Risk Plan Ivi Z-68 (SP) v6 - Plan Z-68 - Plan #12c Z-68 425.31 425.00 251.01 7.71 243.31 Pass - Major Risk Plan Kup Z-105 (SN) v6 - Plan Z-105 - Plan #6 Z-1 633.26 635.00 220.64 11.66 208.98 Pass - Major Risk Plan Kup Z-105 (SN) v6 - Plan Z-105PB1 - Plan # 633.26 635.00 220.64 11.66 208.98 Pass - Major Risk Plan Kup Z-106 (27+30) v6 - Plan Z-106 - Plan #4 2,190.15 2,080.00 604.79 47.96 557.76 Pass - Major Risk Plan Kup Z-111 (29.5) v6 - Plan Z-111 - Plan #10 Z 423.51 410.00 899.84 7.71 892.13 Pass - Major Risk Plan Kup Z-114 (27+45) v6 - Plan Z-114 - Plan #21 2,719.30 2,415.00 468.16 67.46 402.44 Pass - Major Risk Plan Kup Z-118 (103+15) v6 - Plan Z-118 v6 - Plan 653.30 680.00 747.77 12.24 735.59 Pass - Major Risk Plan Sch Z-201 (SO) v6.1 - Plan Z-201 - Plan #7 Z 583.68 585.00 235.72 9.38 226.51 Pass - Major Risk Plan Sch Z-203 (NB) v6.1 - Plan Z-203 - Plan #3 Z 349.09 350.00 155.75 6.38 149.37 Pass - Major Risk Plan Sch Z-211 (NE) v6 - Plan Z-211 - Plan #3 Z-2 402.71 405.00 141.04 7.34 133.69 Pass - Major Risk Plan Sch Z-212 (NL) v6.1 - Plan Z-212 - Plan #4 Z 348.91 350.00 180.08 6.33 173.75 Pass - Major Risk Plan Sch Z-213 (SJ) v6.1 - Plan Z-213 - Plan #4 Z 539.98 540.00 75.83 9.91 65.93 Pass - Major Risk Plan Sch Z-214 (SK) v6.1 - Plan Z-214 - Plan #3 Z 360.00 360.00 90.56 6.27 84.29 Pass - Major Risk Plan Sch Z-216 (NI) v6.1 - Plan Z-216 - Plan #3 Z- 344.12 345.00 155.88 6.24 149.64 Pass - Major Risk Z-01 - Z-01 - Z-01 2,675.72 2,430.00 207.32 68.78 141.25 Pass - Major Risk Z-01 - Z-01 A - Z -01A 2,675.72 2,430.00 207.32 68.94 141.09 Pass - Major Risk Z-01 - Z-01APB1 - Z-01APB1 2,675.72 2,430.00 207.32 68.94 141.09 Pass - Major Risk Z-01 - Z-01APB2 - Z-01APB2 2,675.72 2,430.00 207.32 68.94 141.09 Pass - Major Risk Z-01 - Z-01 B - Z-01 B 2,675.72 2,430.00 207.32 68.78 141.25 Pass - Major Risk Z-02 - Plan Z -02B - Plan #3 2,700.31 2,420.00 207.81 71.09 139.02 Pass - Major Risk Z-02 - Z-02 - Z-02 2,700.94 2,430.00 207.74 70.82 139.23 Pass - Major Risk Z-02 - Z -02A - Z -02A 2,699.29 2,420.00 207.92 70.96 139.26 Pass - Major Risk Z-02 - Z-02BXX - Z-02BXX 2,700.94 2,430.00 207.74 70.98 139.07 Pass - Major Risk Z-03 - Z-03 - Z-03 2,722.90 2,450.00 109.68 64.11 47.38 Pass - Major Risk Z-03 - Z -03A - Z -03A 2,722.90 2,450.00 109.68 64.12 47.37 Pass - Major Risk Z-04 - Z-04 - Z-04 2,816.96 2,525.00 192.05 49.00 143.49 Pass - Major Risk Z-04 - Z -04A - Z -04A 2,816.31 2,515.00 192.04 48.98 143.49 Pass - Major Risk Z-05 - Plan#3 Z-05APBl - Plan #3 2,854.20 2,550.00 186.07 52.37 134.16 Pass - Major Risk Z-05 - Plan#4 Z -05A - Plan #4 2,854.20 2,550.00 186.07 52.37 134.16 Pass - Major Risk Z-05 - Z-05 - Z-05 2,854.20 2,550.00 186.07 52.37 134.16 Pass - Major Risk Z-06 - Z-06 - Z-06 2,910.38 2,585.00 182.75 52.19 130.99 Pass - Major Risk Z-06 - Z -06A - Z -06A 2,912.54 2,585.00 182.79 52.27 130.99 Pass - Major Risk Z-07 - Z-07 - Z-07 3,456.86 2,920.00 336.87 83.98 258.66 Pass - Major Risk Z-07 - Z -07A - Z -07A 3,455.08 2,915.00 336.80 83.92 258.66 Pass - Major Risk Z-07 - Z -07B - Z -07B 3,455.08 2,915.00 336.80 83.92 258.66 Pass - Major Risk Z-08 - Z-08 - Z-08 3,001.94 2,645.00 145.50 58.88 86.99 Pass - Major Risk Z-08 - Z -08A - Z -08A 3,000.69 2,640.00 145.50 59.00 86.83 Pass - Major Risk Z-08 - Z -08B - Plan 3 3,000.69 2,640.00 145.50 59.00 86.83 Pass - Major Risk Z-09 - Z-09 - Z-09 3,103.74 2,715.00 126.39 59.13 67.66 Pass - Major Risk Z-09 - Z -09A - Z -09A 3,106.13 2,710.00 126.38 59.18 67.67 Pass - Major Risk Z-10 - Z-10 - Z-10 3,232.51 2,340.00 951.27 82.22 882.96 Pass - Major Risk Z-10 - Z-1 OA - Plan #8 Z-1 OA Approved 31229.63 2,340.00 951.16 82.08 882.96 Pass - Major Risk Z-10 - Z-1 OA - Z-1 OA 3,229.60 2,340.00 951.16 82.08 882.96 Pass - Major Risk Z-102 - Z-102 - Z-102 373.38 355.00 831.13 7.51 823.62 Pass - Major Risk Z-102 - Z-102PB1 - Z-102PB1 373.38 355.00 831.13 7.51 823.62 Pass - Major Risk Z-103 - Z-103 - Z-103 2,305.82 2,220.00 191.00 51.14 140.98 Pass - Major Risk Z-103 - Z -1 03P81 - Z-103PB1 2,305.82 2,220.00 191.00 51.14 140.98 Pass - Major Risk Z-103 - Z-103PB2 - Z-103PB2 2,305.82 2,220.00 191.00 51.14 140.98 Pass - Major Risk 5/20/2013 2:20.43PM Page 3 of 6 COMPASS 5000.1 Build 61 BP Anticollision Report Company: North America - ALASKA - SP Project: Prudhoe Bay Reference Site: PB Z Pad Site Error: 0.00usft Reference Well: Plan Ivi Z-70 (SF) v6.1 Well Error: 0.00usft Reference Wellbore Plan Z-70 Reference Design: Plan #21 Z-70 Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method Output errors are at Database: Offset TVD Reference: Well Plan IA Z-70 (SF) v6.1 Z-70 plan P273 @ 103.15usft (Parker 273) Z-70 plan P273 @ 103.15usft (Parker 273) True Minimum Curvature 1.00 sigma EDM R5K - Alaska PROD - ANCP1 Offset Datum Summary Reference Offset Centre to No -Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (usft) from Plan Offset Well - Wellbore - Design (usft) (usft) (usft) (usft) PS Z Pad Z-108 - Plan Z -108A v5 - Plan #2 Z-1 08A 2,483.52 2,230.00 501.59 58.49 449.19 Pass - Major Risk Z-108 - Plan Z-108APB1 v5 - Plan #2 Z-108APB1 2,483.52 2,230.00 501.59 58.49 449.19 Pass - Major Risk Z-108 - Z-108 - Z-108 2,483.52 2,230.00 501.59 58.49 449.19 Pass - Major Risk Z-11 - Z-11 - Z-11 2,248.32 2,120.00 238.61 48.91 191.27 Pass - Major Risk Z-11 - Z -11A - Z -11A 2,248.32 2,120.00 238.61 48.91 191.27 Pass - Major Risk Z-112 - Z-112 - Z-112 2,494.02 2,295.00 342.28 61.44 284.89 Pass - Major Risk Z-112 - Z-112PB1 - Z-112PB1 2,494.02 2,295.00 342.28 61.44 284.89 Pass - Major Risk Z-112 - Z-112PB2 - Z-112PB2 2,494.02 2,295.00 342.28 61.44 284.89 Pass - Major Risk Z-113 - Z-113 - Z-113 409.86 400.00 145.30 6.75 138.55 Pass - Major Risk Z-113 - Z-113PB1 - Z-113PB1 409.86 400.00 145.30 6.90 138.39 Pass - Major Risk Z-115 - Z-115 - Z-115 317.74 305.00 142.96 5.15 137.82 Pass - Major Risk Z-116 - Z-116 - Z-116 500.00 500.00 799.19 9.39 789.89 Pass - Major Risk Z-116 - Z-116PB1 - Z-116PB1 500.00 500.00 799.19 9.39 789.89 Pass - Major Risk Z-116 - Z-116PB2 - Z-116PB2 500.00 500.00 799.19 9.39 789.89 Pass - Major Risk Z-12 - Z-12 - Z-12 2,207.33 2,090.00 249.70 48.15 203.11 Pass - Major Risk Z-13 - Z-13 - Z-13 2,135.94 2,030.00 246.58 43.81 204.12 Pass - Major Risk Z-13 - Z-1 3A - Z-1 3A 2,135.04 2,020.00 246.56 43.78 204.12 Pass - Major Risk Z-13 - Z-13AP81 - Z-13APB1 2,135.04 2,020.00 246.56 43.78 204.12 Pass - Major Risk Z-14 - Z-14 - Z-14 2,050.68 1,960.00 237.12 42.74 195.56 Pass - Major Risk Z-14 - Z -14A - Z -14A 2,050.68 1,960.00 237.12 42.74 195.56 Pass - Major Risk Z-14 - Z -14B - Z -14B 2,054.70 1,955.00 237.23 42.89 195.56 Pass - Major Risk Z-15 - Z-15 - Z-15 1,685.88 1,625.00 271.79 31.54 240.54 Pass - Major Risk Z-16 - Z-16 - Z-16 1,696.04 1,665.00 64.99 40.16 26.81 Pass - Major Risk Z-16 - Z-1 6A - Z-1 6A 1,696.04 1,665.00 64.99 40.16 26.81 Pass - Major Risk Z-17 - Z-17 - Z-17 1,867.15 1,825.00 212.57 38.34 175.91 Pass - Major Risk Z-17 - Z-1 7A - Plan 4 1,867.15 1,825.00 212.57 38.34 175.91 Pass - Major Risk Z-18 - Z-18 - Z-18 1,513.04 1,510.00 61.15 32.06 29.92 Pass - Major Risk Z-19 - Z-19 - Z-19 727.15 715.00 166.31 17.36 148.95 Pass - Major Risk Z-19 - Z-1 9A - Z-1 9A 726.51 710.00 166.29 17.35 148.95 Pass - Major Risk Z-20 - Z-20 - Z-20 776.69 765.00 134.97 13.44 121.53 Pass - Major Risk Z-210 - Z-210 - Z-210 1,764.94 1,790.00 766.64 37.16 729.92 Pass - Major Risk Z-210 - Z-210PB1 - Z -21 0P81 1,764.94 1,790.00 766.64 37.16 729.92 Pass - Major Risk Z-27 - Z-27 - Z-27 2,625.91 2,200.00 669.97 72.56 600.65 Pass - Major Risk Z-28 - Z-28 - Z-28 2,885.80 2,575.00 444.96 53.04 392.38 Pass - Major Risk Z-29 - Z-29 - Z-29 2,769.41 2,350.00 511.58 56.27 456.61 Pass - Major Risk Z-30 - Z-30 - Z-30 2,700.34 2,140.00 850.55 78.88 776.67 Pass - Major Risk Z-30 - Z -30A - Z -30A 2,699.68 2,130.00 850.51 79.07 776.46 Pass - Major Risk Z-31 - Z-31 - Z-31 2,696.60 2,095.00 840.54 81.73 765.64 Pass - Major Risk Z-32 - Plan Z -32C - Plan #7 Z -32C 3,077.43 2,715.00 417.17 58.98 358.66 Pass - Major Risk Z-32 - Z-32 - Z-32 3,076.73 2,705.00 417.14 58.96 358.65 Pass - Major Risk Z-32 - Z -32A - Z -32A 3,077.23 2,705.00 417.16 58.98 358.66 Pass - Major Risk Z-32 - Z -32B - Z -32B 3,077.50 2,700.00 417.17 58.99 358.66 Pass - Major Risk Z-32 - Z-32BL1 - Z-32BL1 3,077.50 2,700.00 417.17 58.99 358.66 Pass - Major Risk Z-32 - Z-32BPB1 - Z-32BPB1 3,077.50 2,700.00 417.17 58.99 358.66 Pass - Major Risk Z-32 - Z-32BPB2 - Z-32BPB2 3,077.50 2,700.00 417.17 58.99 358.66 Pass - Major Risk Z-33 - Z-33 - Z-33 3,120.45 2,735.00 411.72 60.19 351.97 Pass - Major Risk Z-33 - Z -33A - Z -33A 3,123.64 2,740.00 411.59 60.31 351.79 Pass - Major Risk Z-34 - Z-34 - Z-34 797.01 795.00 196.25 12.84 183.41 Pass - Major Risk Z-35 - Z-35 - Z-35 3,228.74 2,770.00 175.25 61.91 113.37 Pass - Major Risk Z-35 - Z-35PB1 - Z-35PB1 3,228.74 2,770.00 175.25 61.91 113.37 Pass - Major Risk Z-38 - Z-38 - Z-38 6,535.53 6,030.00 189.47 209.37 15.36 Pass - Major Risk Z-38 - Z -38A - Z -38A 48.35 48.35 1,190.15 0.93 1,189.22 Pass - Major Risk Z-38 - Z-38PB1 - Z-38PB1 3,675.12 3,110.00 141.34 77.37 64.05 Pass - Major Risk 5/20/2013 2:20:43PM Page 4 of 6 COMPASS 5000.1 Build 61 BP Anticollision Report Company: North America - ALASKA- BP Local Co-ordinate Reference: Well Plan Ivi Z-70 (SF) v6.1 Project: Prudhoe Bay TVD Reference: Z-70 plan P273 @ 103.15usft (Parker 273) Reference Site: PB Z Pad MD Reference: Z-70 plan P273 @ 103.15usft (Parker 273) Site Error: 0.00usft North Reference: True Reference Well: Plan Ivi Z-70 (SF) v6.1 Survey Calculation Method: Minimum Curvature Well Error: 0.00usft Output errors are at 1.00 sigma Reference Wellbore Plan Z-70 Database: EDM R5K - Alaska PROD - ANCP1 Reference Design: Plan #21 Z-70 Offset TVD Reference: Offset Datum Summary Reference Offset Centre to No -Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (usft) from Plan Offset Well - Wellbore - Design (usft) (usft) (usft) (usft) PB Z Pad Z-39 - Z-39 - Z-39 2,311.10 2,175.00 119.39 48.55 72.78 Pass - Major Risk Z-39 - Z -39A - Z -39A 2,311.10 2,175.00 119.39 48.55 72.78 Pass - Major Risk Z-40 - Z-40 - Z-40 812.89 800.00 55.36 13.89 41.47 Pass - Major Risk Z-46 - Z-46 - Z-46 1,120.42 1,085.00 159.20 21.35 138.77 Pass - Major Risk Z-46 - Z -46A - Z -46A 1,120.42 1,085.00 159.20 21.35 138.77 Pass - Major Risk Z-50 - Z-50 - Z-50 248.50 235.00 90.87 4.43 86.44 Pass - Major Risk Z-61 - Z-61 - Z-61 370.36 365.00 141.39 6.13 135.26 Pass - Major Risk Z-61 - Z-61 PB1 - Z-61 PB1 370.36 365.00 141.39 6.28 135.10 Pass - Major Risk Z-65 - Z-65 - Z-65 338.81 325.00 13.94 5.58 8.37 Pass - Major Risk Z-65 - Z-65PB1 - Z-65PB1 338.81 325.00 13.94 5.58 8.37 Pass - Major Risk Z-66 - Z-66 - Z-66 3,052.42 2,960.00 105.12 69.98 42.88 Pass - Major Risk Z-66 - Z-66PB1 - Plan #19 Z-66 Approved 556.00 550.00 61.00 10.19 50.81 Pass - Major Risk Z-66 - Z-66PB1 - Z-66PB1 381.98 375.00 58.68 6.06 52.63 Pass - Major Risk Z-67 - Z-67 - Z-67 3,326.02 2,785.00 437.12 69.42 376.88 Pass - Major Risk Z-69 - Z-69 - Z-69 428.24 425.00 163.00 6.81 156.19 Pass - Major Risk 5/20/2013 2: 20 43P Page 5 of 6 COMPASS 5000.1 Build 61 From KOP to 1900'md Scan interal 25 ft Scale 1 inch : 50 ft All wells pass major risk 330 Project: Prudhoe Bay Site: PB Z Pad Well: Plan Ivi Z-70 (SF) v6.1 Wellbore: Plan Z-70 Design: Plan #21 Z-70 1000 C / �►���Z RFS... �� ��=�... o�' hh ti m � C' QIb ti r o A ti I �• �dl�[i`;�i����q From Colour To MD 47 500 500 1000 C / �►���Z RFS... �� ��=�... �•��i j ��� � 1000 1500 ti^0 A, 1500 2000 2000 -- 3000 3000 4000 �\ 4000 5000 �1..E� �1 5000 6000 ����►e�w�' 1 IV N 6000 7000 7000 8000 0 8000 9000 9 9000 10000 oti 0 10000 11000 a �Q\ 11000 11500 ti 11500 14050 me Q� o J �• �dl�[i`;�i����q .ip!i!`�;L:r��;���G������'����Iw�!►�'�'��;,� °��,`-��r�'� ,4/�e��1�r���.� �� C / �►���Z RFS... �� ��=�... �•��i j ��� � �1..E� �1 '����'d►.�:J,,o1�, ����►e�w�' 1 -. sla 230 / 152 1859 " 1275 ao/1826" 210 150 - -- "- 1 i ti- bti --` 180 180 Azimuth from North [°] vs Centre to Centre Separation [50 usfVin] From Colour To MD 47 500 500 Project: Prudhoe Bay 1500 Site: PB Z Pad 2000 --— Well: Plan Ivi Z-70 (SF) v6.1 4000 Wellbore: Plan Z-70 5000 Design: Plan #21 Z-70 7000 7000 8000 From 11000'md to TD 9000 9000 Scan interal 25 ft 10000 11000 Scale 1 inch : 100 ft 11500 11500 All wells pass major risk From Colour To MD 47 500 500 1000 1000 1500 1500 2000 2000 --— 3000 3000 4000 4000 5000 5000 6000 6000 7000 7000 8000 8000 — 9000 9000 10000 10000 11000 11000 11500 11500 14050 0156 50 60 120 90 64 Z }i �uuul � GRID I 9 ■ 8 ■ 7 ■ 6 ■ 112 ■ 5 ■ 108 ■ 4 3 ■ 2 ■ 1 ■ ■ 33 ■ 32 ■ 31 ■ 30 ■ 29 A 20 i ■ 102i N 27 i ■ 104i ■ 1141 ■ 103i ■ SPARE -A ■ P- 504A ■ P-5048 r ; SURVEYOR'S CERTIFICATE {^ „ -1h�° Yip ■ 21 "- "° �a PROPERLY REGISTERED AND LICENSED .;"44 f '„ ■ 22 39 ■ THIS AS -BUILT REPRESENTS A SURVEY `"'^' MADE BY ME OR UNDER MY DIRECT x ! Rf,FCt11.,QFd Allison ,p i l SUPERVISION AND THAT ALL DIMENSIONS AND OTHER DETAILS ARE X 1 ' ■ 23 11 ■ ■ 24 12 ■ ■ 25 13 ■ ■ 26 14 ■ ■ SLOT 1 15 ■ ■ SLOT 2 ■ Z-100 16 ■ ■ SLOT 4 ■ 101 17 ■ 19 m Z -PAD 20 ■ 50 55 211 02 SID 57 - -. 65 2181 113 2SG 40 l 2161 211 I �fJu 1 2141 SL ©I tV-PAD #t. Z -PAD ti Trl$ PROJECT N- SPINE RD VICINITY MAP NTS LEGEND 3 5 201 105 ?1 AS -BUILT CONDUCTOR 268 �1?a�71 a ■ EXISTING WELL CONDUCTOR NOTES: ✓� ''"' ✓ *" + Y Y y + t ALASKA STATE PLANE COORDINATES ARE ZONE 4, NAD 27. RENAMED CONDUCTOR REVISION NOTE 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL WELL: NK AND 42 MONUMENTS MON 2 AND MON 3. THIS AS -BUILT DRAWING IS A REISSUE OF A PREVIOUS 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. AS -BUILT DRAWING FOR CONDUCTOR Z-42 AND Z -NK 4. ELEVATIONS ARE BPX MEAN SEA LEVEL (M.S.L.) DATUM. RENAMED CONDUCTOR ARE AS FOLLOWS: 5, GEODETIC DATUM IS NAD27. / OLD COND. NAME NEW COND. NAME 6, PAD AVERAGE SCALE FACTOR IS 0.999911213. Z -NK Z-42 % 7. DATES OF SURVEY: JUNE 28-30, JULY 1-2, 2011. Z-42 Z-718, REFERENCE FIELD BOOKS: NS11-44 PGS. 1-75; NS11-46 PGS. 1-9. AS -BUILT WELL CONDUCTORS: 341, 40, 42, 50, 511, 55, 57, 61, 62, 65, 66, 68, 69, 70, 105, 113, 115, 201, 202, 203, 211i, 212i, 213i, 2141, 215i, 2161, 217i, 2181, SD, SG, SL, NK DRAWN BARNHART \44 f r JAC485 {' `'`�r by I DRAWN 'I'Lii __ - -FR611 wog, zt WOA Z -PAD JOB NO:p Ot, 01 (OSJ7, 3` RENAMED,_WNDUCTpRS NK h 42 _ �-__m ..,,,� _JJ. _. RFA m also a ......_ WIRD PAD EXPANSION SIGN .� SCALE. 00 7. 1 /11i155UED F01i iNFORMAMN �Fa JJ 1•• = 200. AS -BUILT WELL CONDUCTORS ' �` '' N11 I DATE I REVISION ; SURVEYOR'S CERTIFICATE {^ „ -1h�° Yip I HEREBY CERTIFY THAT I AM "- "° �a PROPERLY REGISTERED AND LICENSED .;"44 f '„ TO PRACTICE LAND SURVEYING IN THE STATE OF ALASKA AND THAT THIS AS -BUILT REPRESENTS A SURVEY `"'^' MADE BY ME OR UNDER MY DIRECT x ! Rf,FCt11.,QFd Allison ,p i l SUPERVISION AND THAT ALL DIMENSIONS AND OTHER DETAILS ARE X 1 ' CORRECT AS OF JULY 02, 2011. LEGEND 3 5 201 105 ?1 AS -BUILT CONDUCTOR 268 �1?a�71 a ■ EXISTING WELL CONDUCTOR NOTES: ✓� ''"' ✓ *" + Y Y y + t ALASKA STATE PLANE COORDINATES ARE ZONE 4, NAD 27. RENAMED CONDUCTOR REVISION NOTE 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL WELL: NK AND 42 MONUMENTS MON 2 AND MON 3. THIS AS -BUILT DRAWING IS A REISSUE OF A PREVIOUS 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. AS -BUILT DRAWING FOR CONDUCTOR Z-42 AND Z -NK 4. ELEVATIONS ARE BPX MEAN SEA LEVEL (M.S.L.) DATUM. RENAMED CONDUCTOR ARE AS FOLLOWS: 5, GEODETIC DATUM IS NAD27. / OLD COND. NAME NEW COND. NAME 6, PAD AVERAGE SCALE FACTOR IS 0.999911213. Z -NK Z-42 % 7. DATES OF SURVEY: JUNE 28-30, JULY 1-2, 2011. Z-42 Z-718, REFERENCE FIELD BOOKS: NS11-44 PGS. 1-75; NS11-46 PGS. 1-9. AS -BUILT WELL CONDUCTORS: 341, 40, 42, 50, 511, 55, 57, 61, 62, 65, 66, 68, 69, 70, 105, 113, 115, 201, 202, 203, 211i, 212i, 213i, 2141, 215i, 2161, 217i, 2181, SD, SG, SL, NK DRAWN BARNHART \44 f r JAC485 {' `'`�r by I DRAWN 'I'Lii __ - -FR611 wog, zt WOA Z -PAD JOB NO:p Ot, 01 (OSJ7, 3` RENAMED,_WNDUCTpRS NK h 42 _ �-__m ..,,,� _JJ. _. RFA m also a ......_ WIRD PAD EXPANSION SIGN .� SCALE. 00 7. 1 /11i155UED F01i iNFORMAMN �Fa JJ 1•• = 200. AS -BUILT WELL CONDUCTORS ' �` '' N11 I DATE I REVISION I if LOCATED WITHIN PROTRACTED SEC. 19, T. 11 N., R. 12 E., UMIAT MERIDIAN, ALASKA �TE� 1. ALASKA STATE PLANE COORDINATES ARE NAD27, ZONE 4. 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL MONUMENTS MON 2 AND MON 3. 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. 4. ELEVATIONS ARE BPX MEAN SEA LEVEL (M.S.L.) DATUM. 5. PAD AVERAGE SCALE FACTOR IS 0.999911213. AS—BUILT WELL CONDUCTORS: 34i. 40, 42, 50, 51i. 55, 57, 61, 62, 65, 66, 68, 69, 70, 105, 113, 115, 201, 202, 203, 211i, 2121, 213811, 214i, 2.15i, 216i, 2171, 218i, SD, SG, SL, NK I I—.— `�. 1ifJ11fi1"I„ oRn,sry SARNHART ��,;�e:9a _....— t.�,tt {{''''�� �..._..._..,._.. _.� ... ._ ..�.. .. _._. JACOBS � bp ����� C)RAu1Y SHI: is -. . ..... m_ F��>> wOz z, WOA Z PAD 'T� t� qp JCP r J ,__ueW F WELL .2 TO vEu_T1 ...., JJ WA it a!!� _ _ WRD PAD EXPANSION RENA", ;,,a,C 2 OF 3 oR N oauAna+ .� !t=w,`� ,; ,_. = 200'AS—BUILT WELL CONDUCTORS DA"I RE`-9SiCu civ C:,N. WELL A.S.P. PLANT GEODETIC GEODETIC CELLAR SECTION NO. COORDINATES COORDlNA1ES POSITION(DMS) IPOSITION(D.DD) BOX ELEV. OFFSETS Y= 5,959,100.13 N— 1,179.09 70°17'51.597" 70.2976658° 56.1, .4,292' FSL 341 X= 600,125.84 E= 1,870.12 149'11'20.998"1 149.1891661- 2,552' FEL 40 �Y= 5,9 59,1 00. 17 N= 1324.00 � 70'17'51.616 70.2976711" 4,294' FSL 1,44 „ , Q 1• 56.0' 71 Y=5,959,239.95 N= 1,126.45 70°17'52.965" 70.2980458° 4,431' FSL 56.0' X= 600,178.47 E= 2°009.96 149'11'19.409" 149.1887247 2,497' FEL 50 �X= 599,831.02 �E= 1,870.18 149`11'29.59?" 149.1915531° ...56.2 2,847' FEL 511 Y=5'959,240.04 � N= 1,466.46 70'17'53.011" 70.2980586' 55.9' 4,435' FSL X= 599,838.49 I E= 2,010.05 149'11'29.319" 149.1914175' 2,837' FEL 55 Y= 5,959,100.12 N= 1,458.95 70'17'51.634" � 70.2976761' � 4,295' FSL 56.1' X= 599,846.00 E= 1,870.11 149°11'29.155" 149.1914319° � 2,832' FEL 57 Y-5,959,240.04 N= 1,421.49 70'17'53.005" 70.2980569° i 55.9' 4,435' FSL X— 599,883.46 E= 2,010.05 149°11'28.009" 149.1911136° � 2,792' FEL 61 IY=5,959,?_39.97 N= 1,376.44 � 70'17'52.998"' 70.2980550° 55.9' 4,434' FSL. X— 599,928.50 ' E= 2,.009.98 149'11'26.695"' 149.1907486° 12,747' FEL 62 Y_5,959,239.94 N= 1,436.45 70°17'53.006"'' 70.2980572° 56.0 4,435' FSL X— 599,868.50 E= 2,009.95 149'11'28.445" 149.1912347' 2,807' FEL 65 Y_ 5,959,100.15 N= 1,398.94 70°17'51.626" 70.2976739° 56.1' 4,295' FSL �X= 599,906.01 E= 1,870.14 149°11'27.405" 149.1909458' 2,772' FEL 66 Y— 5'959,100.11 N— 1,443.99 � 70'17'51.632 70.2976756° 4,295' FSL IX= 599,860.96 E= 1.,870.11 149°11'28.719" 149.1913108' 56.2' ! ?_,817' FEL 68 I Y= 5,959,100.23 � N= 1,134. 00 70-17'51.592" 70.2976644' �, 14,291' FSL X— 600,170.92 E= 1,870.22 149'11'19 683"' 149.1888008' S5"'2,507' FEL 69 Y=5'959,239.94 N= 1,301.49 70°17'52.9881 70.2980522' 56.1, 4,433' FSL X= 600,003.45 1 E= 2,009.95 149'11'24.511" 149.1901419' 2,672' FEL Y= 5,959,100.10 `N= 1,384.02 70"17'51.624" 70.2976733' � 4,294' FSL 70 X= 599,920.93 � E= 1,870.09. 149'11'26.971" 149.1908253' � 5b.2' 2,757' FEL Y=5,959,100.05 N= 1;-163.88 1 70°17'51.594"! 70.-2976650 ' 55.9' 4,291' FSL 105 X= 6001141.04 E= 1,870.04 149`11'20.554"� 149.1890428° 12,537' FEL 113 Y=5,959,239.90 N= 1,346.45 70°17'52.994"1 70.2980539' 4,434' FSL f '25.821"� 149.1905058° � 56'0' 12,717' FEL X= 599,958.49 E= 2,009.91 � 149°1 115 Y=5,959,240.03 !N— 1,361.38 70'17'52.997" 70.2980547° 55.9' 12,732' 4,434' FSL X= 599,943.56 (E= 2,010.04 149°11'26.26"149.1906267° FEl_ �TE� 1. ALASKA STATE PLANE COORDINATES ARE NAD27, ZONE 4. 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL MONUMENTS MON 2 AND MON 3. 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. 4. ELEVATIONS ARE BPX MEAN SEA LEVEL (M.S.L.) DATUM. 5. PAD AVERAGE SCALE FACTOR IS 0.999911213. AS—BUILT WELL CONDUCTORS: 34i. 40, 42, 50, 51i. 55, 57, 61, 62, 65, 66, 68, 69, 70, 105, 113, 115, 201, 202, 203, 211i, 2121, 213811, 214i, 2.15i, 216i, 2171, 218i, SD, SG, SL, NK I I—.— `�. 1ifJ11fi1"I„ oRn,sry SARNHART ��,;�e:9a _....— t.�,tt {{''''�� �..._..._..,._.. _.� ... ._ ..�.. .. _._. JACOBS � bp ����� C)RAu1Y SHI: is -. . ..... m_ F��>> wOz z, WOA Z PAD 'T� t� qp JCP r J ,__ueW F WELL .2 TO vEu_T1 ...., JJ WA it a!!� _ _ WRD PAD EXPANSION RENA", ;,,a,C 2 OF 3 oR N oauAna+ .� !t=w,`� ,; ,_. = 200'AS—BUILT WELL CONDUCTORS DA"I RE`-9SiCu civ C:,N. WELL A.S.P. PLANT GEODETIC GEODETIC CELLAR SECTION NO. COORDINATES COORDlNA1ES POSITION(DMS) IPOSITION(D.DD) BOX ELEV. OFFSETS Y= 5,959,100.13 N— 1,179.09 70°17'51.597" 70.2976658° 56.1, .4,292' FSL 341 X= 600,125.84 E= 1,870.12 149'11'20.998"1 149.1891661- 2,552' FEL 40 �Y= 5,9 59,1 00. 17 N= 1324.00 � 70'17'51.616 70.2976711" 4,294' FSL 1,44 „ , Q 1• 56.0' 71 Y=5,959,239.95 N= 1,126.45 70°17'52.965" 70.2980458° 4,431' FSL 56.0' X= 600,178.47 E= 2°009.96 149'11'19.409" 149.1887247 2,497' FEL 50 �X= 599,831.02 �E= 1,870.18 149`11'29.59?" 149.1915531° ...56.2 2,847' FEL 511 Y=5'959,240.04 � N= 1,466.46 70'17'53.011" 70.2980586' 55.9' 4,435' FSL X= 599,838.49 I E= 2,010.05 149'11'29.319" 149.1914175' 2,837' FEL 55 Y= 5,959,100.12 N= 1,458.95 70'17'51.634" � 70.2976761' � 4,295' FSL 56.1' X= 599,846.00 E= 1,870.11 149°11'29.155" 149.1914319° � 2,832' FEL 57 Y-5,959,240.04 N= 1,421.49 70'17'53.005" 70.2980569° i 55.9' 4,435' FSL X— 599,883.46 E= 2,010.05 149°11'28.009" 149.1911136° � 2,792' FEL 61 IY=5,959,?_39.97 N= 1,376.44 � 70'17'52.998"' 70.2980550° 55.9' 4,434' FSL. X— 599,928.50 ' E= 2,.009.98 149'11'26.695"' 149.1907486° 12,747' FEL 62 Y_5,959,239.94 N= 1,436.45 70°17'53.006"'' 70.2980572° 56.0 4,435' FSL X— 599,868.50 E= 2,009.95 149'11'28.445" 149.1912347' 2,807' FEL 65 Y_ 5,959,100.15 N= 1,398.94 70°17'51.626" 70.2976739° 56.1' 4,295' FSL �X= 599,906.01 E= 1,870.14 149°11'27.405" 149.1909458' 2,772' FEL 66 Y— 5'959,100.11 N— 1,443.99 � 70'17'51.632 70.2976756° 4,295' FSL IX= 599,860.96 E= 1.,870.11 149°11'28.719" 149.1913108' 56.2' ! ?_,817' FEL 68 I Y= 5,959,100.23 � N= 1,134. 00 70-17'51.592" 70.2976644' �, 14,291' FSL X— 600,170.92 E= 1,870.22 149'11'19 683"' 149.1888008' S5"'2,507' FEL 69 Y=5'959,239.94 N= 1,301.49 70°17'52.9881 70.2980522' 56.1, 4,433' FSL X= 600,003.45 1 E= 2,009.95 149'11'24.511" 149.1901419' 2,672' FEL Y= 5,959,100.10 `N= 1,384.02 70"17'51.624" 70.2976733' � 4,294' FSL 70 X= 599,920.93 � E= 1,870.09. 149'11'26.971" 149.1908253' � 5b.2' 2,757' FEL Y=5,959,100.05 N= 1;-163.88 1 70°17'51.594"! 70.-2976650 ' 55.9' 4,291' FSL 105 X= 6001141.04 E= 1,870.04 149`11'20.554"� 149.1890428° 12,537' FEL 113 Y=5,959,239.90 N= 1,346.45 70°17'52.994"1 70.2980539' 4,434' FSL f '25.821"� 149.1905058° � 56'0' 12,717' FEL X= 599,958.49 E= 2,009.91 � 149°1 115 Y=5,959,240.03 !N— 1,361.38 70'17'52.997" 70.2980547° 55.9' 12,732' LOCATED WITHIN PROTRACTED SEC. 19, T. 11 N., R. 12 E., UMIAT MERIDIAN, ALASKA X NOTES= 1. ALASKA STATE PLANE COORDINATES ARE NAD27, ZONE 4. 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL MONUMENTS MON 2 AND MON 3. 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. 4. ELEVATIONS ARF. BPX MEAN SEA LEVEL (M.S.L.) DATUM. 5. PAD AVERAGE SCALE FACTOR IS 0.999911213: 6. ALPHA NAME DESIGNATIONS REFER TO BPX DRILLING SURFACE SLOT NAME AS—BUILT WELL CONDUCTORS: 34i, 40, 42, 50, 51i, 55, 57, 61, 62, 65, 66, 68, 69, 70, 105, 113, 115, 201, 202, 203, 211i, 212i, 2131, 2141, 2151, 216% 217i, 218i, SD, SG, SL, NK 107CLuRnwN BARNHART JACOBS M 7�1 . bFtavnrr _ FRB51 WOZ 21 - WOA Z—PAD E OI fif �R-AMEO WELL NK TO_M£LL 42 J,1 jRG?; IOW YM ""'- -"' WRD PAD EXPANSION ' I. uw,¢ns iwo iwa wnems 'C'� L. 3 OF 3 00 i , t sw¢o Fo INFORMARO# >FaI aa, AS—BUILT WELL CONDUCTORS -�-} .__. —... .� �.� �.. 1 -zoo' WELL A.S.P. PLANT GEODETIC GEODETIC ? GRAVEL SECTION N0. COORDINATES COORDINATES POSITION(DMS) POSITION{D.DD) ;PAD ELEV. OFFSETS 201 Y=5,959,24-0.18 N= 1,171.46 � 70°17'52.973" 70.2980481° � 4,432' FSL X= 600,133.47 E_ ?._,010.19 149°11'20.721"' 149.1890892' 56'6 2,542' FEL 202 Y=5,959,239.94 N= 1,451.46 70'17'53.448" 70.2980578° 14,435' FSL' X= 599,853.49 E= 2,009.95 � 149'11'28.882" 149.1913561' S5'9 12,822' FEL Y=5,959,100.03 1,148.96 70°17'51.592" 70.2976644'FSL 203X= 600,155.96IN= E= 1,870.02 149°11'20.119" 149.1889219' 56.0' 2522' FEL 211 i � Y= 5,959,100.23 N= 1,308.95 70'17'51.615" 70.2976708' 55.9' 4,293' FSL X= 599,995.99 E= 1,870.22 149°11'24.783" 149.1902175' ' 2,682' FEL._ 2121 Y= 5,959,240.11 N= 1,141.47 70'17'52.969" 70.2980469' 4,431' FSL X= 600,163.45 2,010.12 149°11'19.847" 149.1888464° 56.4' 2,512' FEL Y=5,959,240.04 N= 1,271.44 70'17'52.985" 70.2980514' 56.1' 4,433' FSL 2131 X= 600,033.50 E= 2,010.05 149°11'23.635" 149.1898986' 2,642' FEL 2141 Y=5,959,100.25 N= 1,293.88 � 70°17'51.613" 70.2976703' 56.2' 4,293' FSL X= 60Q011.06 E= 1,870.24 1149'11'24.343" 149.1900953' � 2,667' FEL 2151 ' Y-- 5,959,100.14 � N= 1,354.0 70°17'51.620" � 70.2976722° � 56.2, � 4,294' FSL X= 99,950.89 , E= 1,870.1 149'11'26.097"„ 149.1905825° ?_,72.7' FEL Y=5,959,240.09 I N= 1,316.42 I 70'17'52.992"� 70.2980533° 56.0' 4,433' FSL 2161 X= 599,988.52 E= 2,010.14 149'11'24.946"; 149.1902628° ;2,687' FEL 2171 � Y=5,959,239.98 N= 1,156.36 70°17'52.970" � 70.2980472° 56.2' j 41431' FSL X= 600,148.56 E= 2,O09.99 149'11'20.281 ° 149.1889669° 12,527' FEI.._ 2181 �Y=5,959,239.98 N= 1,391.46 70'17'53.000 70.2980556' 4,434' FSL 55.9' X= 599.913.48 E= 2,009.99 149'11'27.133" 149.1908703' .2,762' FEL SD Y= 5,959,100.11 N= 1,429.03 70°17'51.630" 70.2976750° 4,295' FSL X= 599,875.92 E= 1,870.10 149°11'28.283" 149.1911897' 56.4' 2,802' FEL Y=5,959,100.09 N= 1,369.02 /0"17'51.621" 70.2976725' � 56.2' 4,294' FSL SG X= 599,935.92 ' E= 1,870.08 149'11'26.533", 149.1907036' 2,742' FEL SL � Y= 5,959,100.01 � N= 1,279.00 70°17'51.609" � 70,2976692' � 4,293' FSL �,--�00, 4 E_ 1-87D- .0 149'11'2 .910" I 1 9.1899750' 56.3' 2,6.52' FEL 42 €Y_5,959,239:85... N= 1,286.54 ;.....7017'52.985'l 70.2980514° 56 0' 4,433' FSL.. X— 600,018.40 � E= 2,009.86 ( 149'11'24.075" 1 149.1944208' � 2,657' FEL X NOTES= 1. ALASKA STATE PLANE COORDINATES ARE NAD27, ZONE 4. 2. HORIZONTAL CONTROL IS BASED ON Z PAD CONTROL MONUMENTS MON 2 AND MON 3. 3. VERTICAL CONTROL IS BASED ON Z PAD MONUMENTATION. 4. ELEVATIONS ARF. BPX MEAN SEA LEVEL (M.S.L.) DATUM. 5. PAD AVERAGE SCALE FACTOR IS 0.999911213: 6. ALPHA NAME DESIGNATIONS REFER TO BPX DRILLING SURFACE SLOT NAME AS—BUILT WELL CONDUCTORS: 34i, 40, 42, 50, 51i, 55, 57, 61, 62, 65, 66, 68, 69, 70, 105, 113, 115, 201, 202, 203, 211i, 212i, 2131, 2141, 2151, 216% 217i, 218i, SD, SG, SL, NK 107CLuRnwN BARNHART JACOBS M 7�1 . bFtavnrr _ FRB51 WOZ 21 - WOA Z—PAD E OI fif �R-AMEO WELL NK TO_M£LL 42 J,1 jRG?; IOW YM ""'- -"' WRD PAD EXPANSION ' I. uw,¢ns iwo iwa wnems 'C'� L. 3 OF 3 00 i , t sw¢o Fo INFORMARO# >FaI aa, AS—BUILT WELL CONDUCTORS -�-} .__. —... .� �.� �.. 1 -zoo' WELL A.S.P. PLANT GEODETIC GEODETIC ? GRAVEL SECTION N0. COORDINATES COORDINATES POSITION(DMS) POSITION{D.DD) ;PAD ELEV. OFFSETS 201 Y=5,959,24-0.18 N= 1,171.46 � 70°17'52.973" 70.2980481° � 4,432' FSL X= 600,133.47 E_ ?._,010.19 149°11'20.721"' 149.1890892' 56'6 2,542' FEL 202 Y=5,959,239.94 N= 1,451.46 70'17'53.448" 70.2980578° 14,435' FSL' X= 599,853.49 E= 2,009.95 � 149'11'28.882" 149.1913561' S5'9 12,822' FEL Y=5,959,100.03 1,148.96 70°17'51.592" 70.2976644'FSL 203X= 600,155.96IN= E= 1,870.02 149°11'20.119" 149.1889219' 56.0' 2522' FEL 211 i � Y= 5,959,100.23 N= 1,308.95 70'17'51.615" 70.2976708' 55.9' 4,293' FSL X= 599,995.99 E= 1,870.22 149°11'24.783" 149.1902175' ' 2,682' FEL._ 2121 Y= 5,959,240.11 N= 1,141.47 70'17'52.969" 70.2980469' 4,431' FSL X= 600,163.45 2,010.12 149°11'19.847" 149.1888464° 56.4' 2,512' FEL Y=5,959,240.04 N= 1,271.44 70'17'52.985" 70.2980514' 56.1' 4,433' FSL 2131 X= 600,033.50 E= 2,010.05 149°11'23.635" 149.1898986' 2,642' FEL 2141 Y=5,959,100.25 N= 1,293.88 � 70°17'51.613" 70.2976703' 56.2' 4,293' FSL X= 60Q011.06 E= 1,870.24 1149'11'24.343" 149.1900953' � 2,667' FEL 2151 ' Y-- 5,959,100.14 � N= 1,354.0 70°17'51.620" � 70.2976722° � 56.2, � 4,294' FSL X= 99,950.89 , E= 1,870.1 149'11'26.097"„ 149.1905825° ?_,72.7' FEL Y=5,959,240.09 I N= 1,316.42 I 70'17'52.992"� 70.2980533° 56.0' 4,433' FSL 2161 X= 599,988.52 E= 2,010.14 149'11'24.946"; 149.1902628° ;2,687' FEL 2171 � Y=5,959,239.98 N= 1,156.36 70°17'52.970" � 70.2980472° 56.2' j 41431' FSL X= 600,148.56 E= 2,O09.99 149'11'20.281 ° 149.1889669° 12,527' FEI.._ 2181 �Y=5,959,239.98 N= 1,391.46 70'17'53.000 70.2980556' 4,434' FSL 55.9' X= 599.913.48 E= 2,009.99 149'11'27.133" 149.1908703' .2,762' FEL SD Y= 5,959,100.11 N= 1,429.03 70°17'51.630" 70.2976750° 4,295' FSL X= 599,875.92 E= 1,870.10 149°11'28.283" 149.1911897' 56.4' 2,802' FEL Y=5,959,100.09 N= 1,369.02 /0"17'51.621" 70.2976725' � 56.2' 4,294' FSL SG X= 599,935.92 ' E= 1,870.08 149'11'26.533", 149.1907036' 2,742' FEL SL � Y= 5,959,100.01 � N= 1,279.00 70°17'51.609" � 70,2976692' � 4,293' FSL �,--�00, 4 E_ 1-87D- .0 149'11'2 .910" I 1 9.1899750' 56.3' 2,6.52' FEL 42 €Y_5,959,239:85... N= 1,286.54 ;.....7017'52.985'l 70.2980514° 56 0' i Enter/Exit ( 01 � / I I------- -----`, 36' I I t i {� N fig P 4tai Q,1 N N •"°i •••a ^-+ Q �} N N N N @+J -4- -4i �' 2 v . N w s'. cr+ _.N8s.0 CD 16286 1 - A A■WlWacA-0(II ■■■■t■ }�w■ Qy .. etawyQr�(:�fl0 6.it 519 I ccs w v' N qua sssc 'tea, Baas CI -518X I i r7 t R 514 - ` — �' 503 516 � 506A 5068 506C 506D I U) 518 - IS -509 FM -500X— - `_ _ ■ ■ SV -502X ■ ■ ■ i ■ ■ 515 ■ ■ ■ ■ ■ Ar ■'- sas tears \ 611 {� -` •+ os cn a' `.' ".s 4' ry w a ur ' I ' n>.� rn eta, cA N SV 518X cn 616A .— I 136+ 38' c� .507 ------------------ -- — / 5208 512 EM -512X u C3 521 520 2092' WELL PRODUCER ■ or 0 WELL INJECTOR A DATE - 11/2612012 SCALE 1"=250' MAP DATE '. 2011 PRUDHOE BAY UNIT - Z PAD WELL SLOT Ver/CONDUCTOR c1 RAM TYPE BOP: SHAFFER LXT 13 5/8"-5M 13 5/8"-5M W/(2) 14" UL AND (2) 14" LOWER CAVIT' CHOKE 3-1/8" 3-1/8" 3-1/8" PARKER 273 BOP STACK LINE: 5M 5M 5M FLANGED MANUAL GATE VALVE _ FLANGED HYDRAULIC GATE VALVE FLEX HOSE DUTCH LOCK DOWN FLANGE ANNULAR BOP: SHAFFER LXT 13 5/8"-5M 13-5/8" 5M STUDDED TOP 13-5/8" 5M FLANGED BOTTOM DRILLING CROSS: 13 5/8"-5M FLANGED TOP 13 5/8"-5M FLANGED BOTTOM W (2) 3 1/8"-5M SIDE OUTLETS KILL LINE: 2-1/16" 5M FLEX HOSE 2-1/16" 5M X 3-1/8" 5M D.S.A. 3-1/8" 5M FLANGED MANUAL GATE VALVE 3-1/8" 5M FLANGED HYDRAULIC GATE VALVE RAM TYPE BOP: SHAFFER LXT SINGLE 13 5/8" 5M 13 5/8"-5M STUDDED TOP 13 5/8"- 5M FLANGED BOTTOM W/(2) 14" UL2 OPERATOR Z-70 Diverter Layout Well House removed with this configuration SCS 2 1/16-`. REWS DO 120 Gy :REWS 00 :20 GV —oo ! —4V,2� 00 'T'U'B"I'N'G 0-) iCD � CO PROPOSAL '02-5037 0 SM ONZE11 C70RO REP: 00 120,41074013 OOOOOMI029404 PRIVATE A SS 0 -'<R' se 5nz, r: E,3 oesm:.,, ULTRA-SLIMHOLE PRODUCERS OR INJECTORS 10 . x Col." .01, .o3o —1— WELLHEAD SYSTEV" To co. 70 IM VD. .-n —E�S TO CWOft YQ 01 li-5000 x 4 T. O."w's '. T.. —,LE 'O'k,"O., ll� �T wCS 20 X 9% X 7 X 4 -;/2 00:20MI080698 LEWIK i �O� CC.TMIW tote. Dimensional information reflected on this drawing, are estimated measurements only. T ?8 6 i ► ESL L9 It S:3 CAMERON TRANSMITTAL LETTER CHECKLIST WELL NAME: 7c PTD: —Development —Service —Ex Exploratory — Strati ra hic Test Non -Conventional FIELD:` ' POOL: Check Box for Appropriate Letter / Paragraphs to be Included in Transmittal Letter CHECK OPTIONS TEXT FOR APPROVAL LETTER MULTI The permit is for a new wellbore segment of existing well Permit LATERAL No. , API No. 50- - - - (If last two digits Production should continue to be reported as a function of the original in API number are API number stated above. between 60-69 In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well Pilot Hole name ( PH) and API number (50- - - -) from records, data and logs acquired for well (name on permit). The permit is approved subject to full compliance with 20 AAC 25.055. Approval to produce/inject is contingent upon issuance of a conservation Spacing Exception order approving a spacing exception. (Company Name) Operator assumes the liability of any protest to the spacing exception that may occur. All dry ditch sample sets submitted to the AOGCC must be in no greater Dry Ditch Sample than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Please note the following special condition of this permit: production or production testing of coal bed methane is not allowed for Non -Conventional (name of well) until after (Company Name) has designed and Well implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the AOGCC to obtain advance approval of such water well testing program. Regulation 20 AAC 25.071(a) authorizes the AOGCC to specify types of well logs to be run. In addition to the well logging program proposed by (Company Name) in the attached application, the following well logs are Well Logging also required for this well: Requirements Per Statute AS 31.05.030(d)(2)(B) and Regulation 20 AAC 25.071, composite curves for well logs run must be submitted to the AOGCC within 90 days after completion, suspension or abandonment of this well. Revised 5/2013 WELL PERMIT CHECKLIST Field & Pool PRUDHOE BAY, PRUDHOE OIL - 640150 PTD#: 2131330 Company BP EXPLORATION (ALASKA) INC Initial Class/Type Well Name: PRUDHOE BAY UNIT Z-70 Program DEV Well bore seg DEV / PEND GeoArea 890 Unit 11650 On/Off Shore On - Annular Dispos Administration 1 Permit fee attached NA 2 Lease number appropriate Yes Surface location in ADL 028262; top prod interval and TD in ADL 028245. 3 Unique well name and number Yes 4 Well located in a defined _pool Yes PRUDHOE BAY, PRUDHOE OIL POOL - 64015, governed by CO.341D 5 Well located proper distance from drilling unit boundary Yes CO 341 D, Rule 2: There shall be no restrictions as to well spacing except that no pay shall be 6 Well located proper distance from other wells Yes opened, in a well closer than 500 feet to the boundary of the affected. area. 7 Sufficient acreage available in drilling unit Yes 8 If deviated, is wellbore plat. included Yes 9 Operator only affected party Yes 10 Operator has appropriate bond in force Yes 11 Permit can be issued without conservation order Yes Appr Date 12 Permit can be issued without administrative approval Yes 13 Can permit be approved before 15 -day wait Yes SFD 9/3/2013 14 Well located within area and strata authorized by Injection Order # (put 10# in comments) (For NA 15 All wells within 1/4 mile area of review identified (For service well only) NA 16 Pre -produced injector: duration of pre -production less than 3 months (For service well only) NA 17 Nonconven. gas conforms to AS31.05.0300.1.A),(j.2.A-D) NA 18 Conductor string_ provided Yes Conductor set-to 80' Engineering 19 Surface casing protects all known USDWs Yes Surface casing set to 3133' TVD 20 CMT vol_ adequate to circulate -on conductor & surf_csg Yes 161 % excess planned 21 CMT vol adequate to tie-in long string to surf csg No TQC 4883' -MD 22 CMT will coverall known -productive horizons- No Production_ interval will be completed with uncemented sliding sleeves and swell packers 23 Casing designs adequate for C,_T_, B &_permafr_ost_ Yes 24 _Adequate tankage or reserve pit. Yes Rig has steel tanks; all waste to approved disposal wells 25 If. a. re -drill, has a 10-403 for abandonment been approved NA_ 26 Adequate wellbore separation -proposed Yes Anti -collision report completed;- no major risk failures 27 If diverter required, does it meet regulations_ - - Yes Flow paddle waived to -1000' per 20 AAC 25.0330) Appr Date 28 Drilling fluid_ program schematic & equip list adequate_ Yes Max formation_ pressure 3745_psi(8485' TVD)(8.49 ppg EMW), will drill w/ 8.6-1.0.5 ppg EMW VLF 9/4/2013 29 BOPEs,_do they meet regulation Yes 30 BOPE_press rating appropriate; test to.(put psig in comments) Yes MPSP is 2897 psi; will test BOPS to 3500 psi 31 Choke -manifold complies w/API_RP-53 (May 84)_ - - - - - Yes 32 Work will occur without operation shutdown_ - - - - - _ - - - _ _ - - - - - Yes _ - - - - - - - - - - - - - - - - 33 Is presence of H2S gas probable_ Yes H2S measures required_ 34 Mechanical -condition of wells within AOR verified (For service well only) NA_ - - - - - - - - - - - - 35 Permit_can be issued w/o hydrogen_ sulfide measures No Z -Pad wells are -1 -12S -bearing. H2S measures are required. _ _ . Geology 36 Data presented on potential overpressure zones Yes Planned mud program_is adequate to control_ overpressure between C_M_1 and top of Sag_ River (expected Appr Date 37 Seismic_analysis_of shallow gas_zones_ - - - - - - - - NA pressure is 10_.0-_10.2_ppg; will be drilled_ using 10.4 - 10.5 ppg mud). SFD 9/3/2013 38 Seabed condition survey (if off -shore) - - - - - - - - - - - - - - - - - -N-A_ Expected pressure in productive interval is 8.2 --8.6 ppg; will be drilled_ using 8,6_- 8.8-ppg mud._ 39 Contact name/phone for weekly -progress reports [exploratory only] NA_ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Geologic Engineering blic Date: Date pate Commissioner: Commissioner: Co er �J
