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212-140
Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. QI . - j1.4 Q Well History File Identifier Organizing (done) ❑ Two-sided ❑ Rescan Needed R SCAN: OVERSIZED: NOTES: Vrayscale Color Items: ❑ aps: Items: Logs: Poor Quality Originals:aw ❑ Other: ❑ Other: /� e� of BY: Maria Date: 'algal, /it /s/ imp Project Proofing BY: en Date: . — /s/ Al ' Scanning Preparation Li- x 30 = 1 ca 0 +p2 = TOTAL PAGES 14/4- ^ c (Count does not include cover sheet) BY: Maria Date: 13 ,9 d'ti i It /s/ Production Scanning f Stage 1 Page Count from Scanned File: 1145(Count does include cover et) Page Count Matches Number in Scannin Preparation: YES v14f) NOO BY: (ria ) Date: J �,a-+ /� /s/Sage 1 If NO in stage 1, page(s) discrepancies were found: YES NO BY: Maria Date: /s/ Stage 2 Additional Well Reports: YES NO TOTAL PAGES: Digital version appended by: Meredith Michal Date: /s/ Final Page Count: Stage 1 + Stage 2: TOTAL PAGES: Scanning is complete at this point unless rescanning is required. 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N O O Z `I 7 >, Q 5 I17, o N C 0 3 z I Y. a J 1 Z O = 1 Sc Nici R i- 5 6 ; G ce Q 2 1 a 0 ce OJ 0. W w 1 J U m o Z QII J 0. 73 CL 0 co1 s N N a E 2 U U c w m o J E " E IIoo Q1.1 ° a. >'- U I"' Z c•-) Rev 2 N11 CO m Illi W o a) w Cl)v0 co 0 'I 114I-1 Q a c I Q Z E 0id 0 E 'a Z I d r) Lo 0 N ...m..... COCO 03 d N 1 I- I co IN S y I � > W m Q' C v U D :? c y p co Q o c) « c U n •� N ,a w R cc a ai w E a 8 0 0 o w °' o I E a 0 0 R U , 0 1 I 0 tZLkc Hunt, Jennifer L (DOA) From: Lastufka,Joseph N <Joseph.Lastufka@bp.com> Sent: Monday, March 10, 2014 4:02 PM To: Hunt,Jennifer L(DOA) Subject: PBU Y-13A/PTD#212-140 Hi Jennifer, Please reference the following well. Well Name: PBU Y-13A Permit#: 212-140 API #: 50-029-20634-01-00 Date of Test: 3/7 Type of Test IPT (Initial Production Test) Choke Size: 71 Choke Unit: Deg Production Method: Gas Lift Duration (Hours Tested): 6 Top Reference (Top Perf MD): 11568' Bottom Reference (Bottom Perf MD): 16175' Tubing Flowing (Pressure): 380 Casing Pressure: 1200 Total Test(Rate f/0, W, G): 102 /88/ 185 24-Hour Rate (0, W, G): 407 /352 /739 Gravity (Oil, API): 24.3 GOR (Gas-Oil Ratio): 1817 This well began Production on Method of Operations on this date: March 5, 2014 1 RBDMS JUL.11 24 RECEIVEE STATE OF ALASKA OCT 15 2013 ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG AOGCC la. Well Status: • ®Oil ❑Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended 1b. Well Class 20AAC 25105 20AAC 25 110 0 Exploratory 0 Stratigraphic 0 GINJ 0 WINJ 0 WAG 0 WDSPL 0 Other No.of Completions One ' . ®Development 0 Service 2. Operator Name. 5. Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska) Inc. 10/3/2013 ' • 212-140 . , 3. Address: 6.Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 _ 8/23/2013 ' 50-029-20634-01-00 • . 4a Location of Well(Governmental Section): 7.Date T D. Reached: 14. Well Name and Number Surface: 9/19/2013 • PBU Y-13A • 1479' FNL, 528'FEL, Sec. 33,T11N, R13E, UM 8. KB(ft above MSL): 87 85 15.Field/Pool(s) Top of Productive Horizon: 3109' FNL, 1670' FEL, Sec.33,T11N, R13E, UM GL(ft above MSL): 49.54' Prudhoe Bay/Prudhoe Bay - Total Depth: 9.Plug Back Depth(MD+TVD) 3023'FNL,4380' FWL, Sec. 34,T11N, R13E, UM 16441' 8854' 4b Location of Well(State Base Plane Coordinates,NAD: 10 Total Depth(MD+TVD) 16. Property Designation. Surface: x- 644290 ' y- 5948767 • Zone- ASP4 16441' • 8854' , ' ADL 028287 • TPI: x- 643182 y- 5947115 Zone- ASP4 11.SSSV Depth(MD+TVD) 17 Land Use Permit: Total Depth x- 649230 y- 5947318 Zone- ASP4 None 18 Directional Surve y ®Yes ❑No 19.Water depth,if offshore. 20 Thickness of Permafrost(TVD):(Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 2056' 21.Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25 071): 22. Re-Drill/Lateral Top Window MD/TVD. MWD/GR/RES/CALIPER, MWD/GR/RES/NEU/DEN/CALIPER/RES micro-imaging 3953' • 3913' 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" x 30" Insulated Conductor Surface 110' Surface 110' 36" 8 cu yds Concrete 13-3/8" 72# L-80 Surface 2680' Surface, 2680' 17-1/2" 3790 cu ft Permafrost II 9-5/8" 47# L-80 Surface 3953' Surface 3913' 12-1/4" 1202 cu ft Class'G', 133 cu ft Permafrost C 7" 26# L-80 3783' 10303' 3758' 8849' 8-1/2" 229 sx Class'G' 4-1/2" 13.5# 13Cr80 10174' 16353' 8750' 8854' 6-1/8" Uncemented Sliding Sleeves w/Swell Packers 24. Open to production or injection? ®Yes 0 No 25. TUBING RECORD If Yes, list each interval open SIZE DEPTH SET(MD) PACKER SET(MD/ (MD+TVD of Top&Bottom;Perforation Size and Number): TVD) 4-1/2"Sliding Sleeves w/Swell Packers 4-1/2", 12.6#,L-80 10177' 10054'/8658' i;,OMPI.E110iM • 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 11568' 8880' to Tam-._ ®' / WAS HYDRAULIC FRACTURING USED DURING COMPLETION?❑Yes No • 12343' 8876' OTaA 'cI y-� 12697' 8876' ; DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED 13021' 8881' V iEB 13392' 8878' •—u — 2200' Freeze Protect w/152 Bbls Diesel 14602' 8861' ` " " Unknown Fish-Packer Pieces 15076' 8867' 16175' 8851' 27. PRODUCTION TEST Date First Production Method of Operation(Flowing,Gas Lift,etc Not on Production N/A Date of Test Hours Tested Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: Test Period Flow Tubing Casing Press. Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 24-Hour Rate 28. CORE DATA Conventional Core(s)Acquired? 0 Yes ®No , Sidewall Core(s)Acquired? 0 Yes ® No , If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology 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. rr�� None V Form 10-407 Revised 10/2012 CONTINUED 0 EV SE Submit Original Only VL-r- 69/i / y- ,, f0„.4iy ;-16 6 z`'''/RBDMS NOV 29. GEOLOGIC MARKERS(List all formations and n- rs encounter 30. -ORMATION TESTS NAME M,. TVD Well Tested? L .as ®No ' Permafrost Top If yes,list intervals and formations tested,briefly summarizing test Permafrost Base results. Attach separate sheets to this form,if needed,and submit detailed test information per 20 AAC 25.071. Ugnu 4132' 4069' West Sak 6197' 5395' None Coleville Mudstone 6726' 5787' HRZ 8446' 7388' Base of HRZ/LCU 8716' 7623' Sag River 10306' 8851' Shublik A 10332' 8871' Shublik B 10377' 8903' Shublik C 10410' 8923' Sadlerochit 10460' 8949' Sadlerochit/Shublik C(Invert) 11010' 8949' Shublik C/Shublik B 11130' 8924' Shublik B/Shublik A 11210' 8908' Shublik A/Sag River 11362' 8887' Sag River/Shublik A(Revert) 11770' 8882' Shublik A/Sag River(Invert) 11958' 8884' Sag River/Shublik A(Revert) 13816' 8887' Shublik A/Sag River(Invert) 13900' 8885' Sag River/Shublik A(Revert) 14219' 8876' Shublik A/Sag River(Invert) 15220' 8872' Sag River/Shublik A(Revert) 15325' 8872' Shublik A/Sag River(Invert) 15790' 8854' Formation at Total Depth: Sag River(From Base) 15790' • 8854' • 31 List of Attachment: Summary of Daily Drilling Reports, Summary of Post-Rig Work,Well Schematic Diagram, LOT/FIT Summary, Surveys, Cement Report 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact. Takahiro Kosaka,564- Email: Takahiro.Kosaka@bp.com Printed Name: Joe Last fka Title: Drilling Technologist Signature. Phone 564-4091 Date: PPa'/13 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 1 a: 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 6"CrW W�LFEAD4-1/1GRAY 'Y- 3A 4-1! .213MELNRLINITIAL WELLBORE NOT ACTUATOR= AXELSON SHOWN BELOW WHIPSTOCK- INITIAL KB.ELE 85.54' .+ +i BF.BEV= 51.04' w_. KOP= 3200' 2015' �4-112'HES X NP,D=3.813' Max Angle 102 @ 10992I � Datum ND= 103.55' y Datum TVD= -8800'SS 2608' -I9-518"OV PKR 13-3/8"CSG,72#,L-80 BUTT,D=12.347" - 2680' a b 2703' -4-1/2"SLB-SFW-VALVE LUBRICATOR,ID=3.86" 3783' -19-5/8"X 7"BKR ZXPN LTP,ID=6.220" 9-5/8"WHPSTOCK(09/XX/13) H 3953' 3804' H9-5/8"X 7"BKR FLEX LOCK HGR,D=6.20" 9-5/8"CSG,47#,L-80 BUTT,D=8.681" '-3953 9-5/8"WILL OUT WIDOW(Y-13A) 3953'-3970' Minimum ID = 3.813" © 2015' GAS LFT MANDRELS 4-112" HES X NIPPLE ST M) TVI) DEV TYPE VLV LATCH PORT DATE f 4 3529 3517 16 KBG DCC BEK - 09/29/13 3 6672 5742 34 KBG DMY BK 0 09/29/13 4-1/2"NDPG SAPPHIRE GAUGE,D=3.864" -I 9990' i ■ 2 8359 7310 25 KBG DMa' BK 0 09/29/13 1 9751 8427 40 KBG DM! BK 0 09/29/13 10019' -J4-1/2"HES X NP ID 3.813" 0 I ty 10054` -17"x 4-1/2"HES TNT PKR,D=3.856" Sr 10085' 4-1/2"FES X NP D=3.813" 4-1/2"TBG,12.6#,L-80 VAM TOP, -1 10143' ' .0152 bpf,ID=3.958" , , ? 10156' J4-1/2"FES X NP,D=3.813" TOP OF 4-1/2"LNR - 10174' :71 10174' -17'X 5"HES HRD-E ZXPN LHR,D=4.340" . 10177' -I 4-1/2"WL EG,ID=4.00' 7"LNR,26#,L-80 HY DRL 563,D=6.276" - 10303' I I -I B MD TT NOT LOGGIA E"� 10208' I--[5"X 4-1/2"XO SUB,D=3.870' HES WATER SWELL PACKERS l�r�� NO SIZE TOP DEPTH MIN ID - ? -FISH-DRLLLID DEBRIS-SEE HA NDOV HT 15 4-1/2" 10373 3.958" ATTACHMENT-10/13/13 ST) 14 4-1/2" 11180 3.958" _. 111,4 SL DRIFTED TO-10218'WLM 13 4-1/2" 11473 3.958" 1 1 12 4-1/2" 11615 3.958" 4-1/2"FRAC PORT/C WM TRACB SW '=' NO DEPTH 0/C DAl E 11 4-1/2" 12139 3.958" 1 I 10 4-1/2" 12490 3.958" 8 11568 C 09/21/13 ,.-.:4 _. 9 4-1/2" 12845 3.958" 1 1 7 12343 C 09/21/13 8 4-1/2" 13186 3.958" -' 1 1 6 12697 C 09/21/13 7 4-1/2" 13561 3.958" V. 11,411 5 13021 C 09/21/13 6 4-1/2" 14418 3.958" r ' 4 13392 C 09/21/13 5 4-1/2" 14730 3.958" 3 14602 C 09/21/13 4 4-1/2" 14972 3.958" ' I 2 15076 C 09/21/13 3 4-1/2" 15123 3.958" 1 16175 C 09/21/13 2 4-1/2' 16041 3.958" 11 O=OPEN C=CLOSED IC,Il 11.141 1.7.:4 'I 16227' -15.475"TOE CIRCULATING VALVE,D=1.00" 4-1/2"LNR, 13.5#,13CR-80 HYDRL 521, 16252' 16252' H4-1/2'X 3-1/2"XO,ID=2.992" .0150 bpf,D=3.880" E3 3� 16293' -13-712"FES SWELL PKR(#1),ID=2.992" 3-1/2"FLOAT GLIDE SHOE(TD) -I 16353' Ptiftelki DATE REV BY COAfVENTS DATE REV BY COM0ENTS PRUDHOE BAY LUT 08/20/81 AUDI 2 IMTIAL COMPLETION 10/14/13 PJC NELLOUT WINDOW CORRECTION WELL Y-13A 10/13/13 D-25 SIDETRACK(Y-13A) FERMI'No: 2121400 10/08/13 PJC DRLG HO CORRECTIONS API No: 50-029-20634-01 10/09/13 PJC ADD DRLLRJG DEBRIS(FISH) SEC 33,T11 N,R13E,1479'FNL&528'FEL 10/10/13 TK/PJC DRLG DRAFT CORRECTIONS 10/10/13 TK/PJC FINAL ODE APPROVAL BP Exploration(Alaska) BP AMERICA LOT / FIT Summary Well Name: Y-13APB1 Surface Leak Off Test Test Test Depth Test Depth AMW Pressure Press i ' Date Type (TMD-Ft) (TVD-Ft) (ppg) (psi) (BHP) (.,,,i) ,• i. ® •) ..: 08/29/13 LOT 3,992.31 3,948.21 9.00 994.00 2,839.92 13.85 09/03/13 FIT 10,327.31 8,852.31 8.60 736.00 4,690.81 10.20 Page 1 of 1 BP AMERICA LOT / FIT Summary Well Name: Y-13A Surface Leak Off Test Test Test Depth Test Depth AMW Pressure Pressure EMW Date Type (TMD-Ft) (TVD-Ft) (ppg) (psi) (BHP) (psi) (ppg) 09/03/13 FIT 10,327.31 8,822.74 8.60 736.00 4,677.60 10.21 Page 1 of 1 North America-ALASKA-BP Page 1 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 r Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 8/12/2013 00:00 - 12:00 12.00 RIGD X WAIT PRE WAIT ON COMPLETION OF PIPELINE REPAIRS -PERFORM MAINTENANCE AND PREP RIG FOR MOVE TO Y-13. -RIG WAS RELEASED FROM J-29 @ 24:00 HRS 08-11-2013 -SIMOPS -PERFORM SERVICE AND MAINTENANCE ON TDS 12:00 - 00:00 12.00 RIGD X WAIT PRE WAIT ON COMPLETION OF PIPELINE REPAIRS -PERFORM MAINTENANCE AND PREP RIG FOR MOVE TO Y-13. -SIMOPS -PERFORM SERVICE AND MAINTENANCE ON TDS -REMOVE AND CLEAN U-TUBE ON POORBOY DEGASSER 8/13/2013 00:00 - 12:00 12.00 RIGD N WAIT PRE WAIT ON COMPLETION OF PIPELINE REPAIRS -PERFORM MAINTENANCE AND PREP RIG FOR MOVE TO Y-13. -SIMOPS -PERFORM SERVICE AND MAINTENANCE ON TDS -GENERAL RIG MAINTENANCE AND HOUSEKEEPING -MPI YOKE AND TDS COMPONENTS -MPI HIGH PSI MUD LINES 12:00 - 00:00 12.00 RIGD N WAIT PRE WAIT ON COMPLETION OF PIPELINE REPAIRS - PERFORM MAINTENANCE AND PREP RIG FOR MOVE TO Y-13A -WORK ON PUMP ROOM TROLLEY BEAMS -PREP CATTLE CHUTE -PREP DERRICK AND SCOPE DOWN 8/14/2013 00:00 - 12:00 12.00 RIGD N WAIT PRE WAIT ON COMPLETION OF PIPELINE REPAIRS - PERFORM MAINTENANCE AND PREP RIG FOR MOVE TO Y-13A -BRIDLE DOWN,PIN TDS,LOWER CATTLE CHUTE --DISCONNECT POWER,PIT AND PUMP COMPLEXES AND WALK AWAY FROM SUB TO ALLOW CRANE ACCESS 12:00 - 15:00 3.00 RIGD N WAIT PRE WAIT ON COMPLETION OF PIPELINE REPAIRS - PERFORM MAINTENANCE AND PREP RIG FOR MOVE TO Y-13A -PREP DERRICK HOISTING CYLINDER FOR REMOVAL -PJSM,REMOVE AND REPLACE DERRICK HOISTING CYLINDER 15:00 - 18:00 3.00 RIGD N WAIT PRE WAIT ON COMPLETION OF PIPELINE REPAIRS - PERFORM MAINTENANCE AND PREP RIG FOR MOVE TO Y-13A -PJSM,PREP,SKID FLOOR AND RAISE C-SECTION Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 2 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:OOAM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UW: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 18:00 - 20:00 2.00 RIGD N WAIT PRE WAIT ON COMPLETION OF PIPELINE REPAIRS - PERFORM MAINTENANCE AND PREP RIG FOR MOVE TO Y-13A -INSPECT DERRICK -PJSM,LAY OVER DERRICK AND SECURE FOR MOVE 20:00 - 00:00 4.00 RIGD N WAIT PRE WAIT ON COMPLETION OF PIPELINE REPAIRS '- PERFORM MAINTENANCE AND PREP RIG FOR MOVE TO Y-13A MOVE COMPLEXES TO ACCESS MATTING BOARDS. 8/15/2013 00:00 - 12:00 12.00 RIGD N WAIT PRE WAIT ON COMPLETION OF PIPELINE REPAIRS - PERFORM GENERAL RIG MAINTENANCE AND PREP RIG FOR MOVE TO Y-13A -STAGE COMPLEXES FOR RIG MOVE -WALK OUT SUB AND STAGE FOR LOAD OUT. -PICK UP MATTING BOARDS AND READY FOR TRANSPORT 12:00 - 00:00 12.00 RIGD N WAIT PRE WAIT ON COMPLETION OF PIPELINE REPAIRS - PERFORM GENERAL RIG MAINTENANCE AND PREP RIG FOR MOVE TO Y-13A -COMPLEXES ARE STAGED FOR RIG MOVE 8/16/2013 00:00 - 08:00 8.00 RIGD N WAIT PRE WAIT ON COMPLETION OF PIPELINE REPAIRS AND CLEARANCE FRON GC-2 - PERFORM GENERAL RIG MAINTENANCE AND PREP RIG FOR MOVE TO Y-13A COMPLEXES ARE STAGED FOR RIG MOVE 08:00 - 12:00 4.00 MOB P PRE BEGIN MOBILISE RIG FROM J-29 TO Y-13A -MOVE PUMP AND MOTOR COMPLEXES TO Y-PAD AND STAGE -PUMP AND POWER COMLEXES DEPARTED J-29 @ 10:00 HRS. -GAVE 24 HR.NOTIFICATION TO AOGCC OF IMPENDING INITIAL BOPE TESTING ON WELL AT 10:44-HRS.VIA HTTP://DOA.ALASKA.GOV/OGC/FOR MS/TEST WITNESSNOTIF.HTML -TEST WITNESS WAIVED BY AOGCC INSPECTOR-JEFF TURKINGTON 12:00 - 00:00 12.00 MOB P PRE MOBILISE PIPE SHED,PIT,SUB,AND CSG SHED COMPLEXES TO Y-PAD AND SPOT. -FINAL TWO RIG COMPLEXES ARRIVE Y-13A ©17:00 HRS 8/17/2013 00:00 - 12:00 12.00 MOB P PRE RIG UP ON Y-13A -POSITION PIPE SHED -PJSM,RAISE DERRICK AND SKID FLOOR -WALK PUMP AND POWER COMPLEXES INTO POSITION -WORK ON INTERCONNECTS BETWEEN COMPLEXES. 12:00 - 16:30 4.50 MOB P PRE -WORK ON PREACCEPTANCE CHECKLIST -INSPECT HAND RAILS,WALKWAYS,AND LANDINGS. -WORK ON INTERCONNECTS. -PREP DERRICK TO SCOPE. Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 3 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:OOAM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 16:30 - 22:00 5.50 MOB P PRE PJSM,SCOPE DERRICK -RIG DOWN BRIDLE LINE AND BRIDLE LINKS -SPOT CASING SHED AND LEVEL -CALIBRATE AND TEST TOTCO SENSOR EQUIPMENT,OK -RIG ACCEPTED @ 22:00 HRS 08-17-2013 22:00 - 23:00 1.00 RIGU P PRE RIG UP ANNULUS VALVES,HIGH PRESSURE CIRC LINES FOR DISPLACING FREEZE PROTECT, PORTABLE CHOKE&HARD LINE. 23:00 - 00:00 1.00 RIGU P PRE PRE-SPUD MEETING WITH BOTH CREWS, -HELD RIG EVACUATION DRILL WITH BOTH CREWS,FULL MUSTER AND HEAD COUNT. -HELD AAR 8/18/2013 00:00 - 05:00 5.00 KILLW P DECOMP PJSM WITH DSM LUBRICATOR CREWAND RIG CREW. -RIG UP LUBRICATOR AND TEST -250 PSI LOW FOR 5 MIN/3500 PSI HIGH FOR 5 MIN,GOOD PULL BPV,R/D LUBRICATOR 05:00 - 07:00 2.00 KILLW P DECOMP RIG UP CIRCULATING LINES AND PRESSURE TEST 200 PSI LOW/2000 HIGH -REVERSE CIRCULATE TAKING RETURNS TO TIGER TANK @ 7 BPM -PUMP 460 BBL SEAWATER,RECOVERED 142 BBL FREEZE PROTECT DIESEL -RECYCLED DIESEL @ FS#1 07:00 - 12:00 5.00 KILLW P DECOMP MONITOR WELL -RIG DOWN CIRCULATION LINES -INSTALL AND TEST DSM LUBRICATOR 250 PSI LOW 5 MIN/3500 PSI HIGH 5 MIN -INSTALL TWC,TEST SAME ABOVE 250 PSI LOW 5 MIN,3500 PSI HIGH 5 MIN -TEST BELOW TWC,250 PSI LOW 5 MIN/ 2000 PSI HIGH 5 MIN -RIG DOWN LUBRICATOR,CIRCULATION LINES AND TEST EQUIPMENT -SUCK OUT DRY HOLE TREE 12:00 - 15:00 3.00 WHSUR P DECOMP RIG UP DRY HOLE TREE TO BLOCK AND STAGE UP WT -TREE BROKE FREE @ 24K OVER PULL -CLEAN VOID AROUND HANGER,INSPECT CONTROL LINES -WORK AND RECORD LOCK DOWN SCREW LENGTH,3 1/8"IN/3 3/4"OUT 15:00 - 21:30 6.50 BOPSUR P DECOMP NIPPLE UP RISERS AND BOPE 21:30 - 00:00 2.50 BOPSUR P DECOMP RIG UP TEST EQUIPMENT AND 4 1/2"AND 5" TEST JOINT -PJSM BEGIN TEST BOPE -ALL TESTS CHARTED 250 PSI LOW 5 MIN/ 3500 PSI HIGH 5 MIN -WITH EXCEPTION OF MANUAL AND SUPER CHOKE TESTED TO 250 PSI LOW 5 MIN/2000 PSI HIGH 5 MIN -AOGCC WITNESS WAIVED BY REP JEFF TURKINGTON 8/19/2013 00:00 - 04:00 4.00 BOPSUR P DECOMP CONTINUE TESTING BOPE. LOWER!BOP LEAKING. Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 4 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) L. Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To i Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 04:00 - 06:30 2.50 BOPSUR N RREP DECOMP CODE 8: CHANGE OUT LOWER IBOP DUE TO LEAK 'DURING BOP TEST 06:30 - 08:00 1.50 BOPSUR P DECOMP TEST LOWER IBOP,250 PSI LOW 5 MIN/ 3500 PSI HIGH 5 MIN,OK RIG DOWN TEST EQUIPMENT. 08:00 - 11:00 3.00 PULL P DECOMP RIG UP DUTCH RISER AND LUBRICATOR, CLOSE ANNULAR ON DUTCH RISER AND TEST SAME TO 250 PSI LOW 5 MIN/3500 PSI —._. HIGH5MIN. 11:00 - 12:00 1.00 PULL P DECOMP DRAIN STACK,RIG UP SCHLUMBERGER LINE SPOOLER 12:00 - 14:00 2.00 PULL P DECOMP MAKE UP BAKER SPEAR/GRAPPLE -RIH AND LATCH ONTO TUBING HANGER, i STAGE WEIGHT UP, '-HANGER FREE @ 176K -MONITOR WELL 10 MIN STATIC. 14:00 - 15:30 1.50 PULL P DECOMP CLOSE ANNULAR AND CIRC THROUGH CHOKE STAGE PUMPS TO 4.5 BPM/700 PSI AND CIRC 60 BBL DEEP CLEAN COMPLETE CIRCULATION. OPEN ANNULAR, 15:30 - 16:00 0.50 PULL P DECOMP 4DRAIN STACK,PULL HANGER TO FLOOR -DISENGAGE GRAPPLE AND LAY DOWN BAKER TOOLS. 16:00 - 17:00 1.00 PULL P DECOMP PJSM,RIG UP POWER TONGS, • SCHLUMBERGER SPOOLING UNIT AND HANDLING TOOLS. 17:00 - 22:00 5.00 PULL P DECOMP PULL 50 JTS 4 1/2"TUBING TO TOP OF SSSV. I-CONTROL LINE SHEATHING BADLY DETERIORATED AND BREAKING OFF BEFORE REACHING SPOOLING UNIT. -TERMINATE CONTROL LINE AT SSSV -RIG DOWN AND LAY DOWN SPOOLING UNIT AND CHECK FOR N.O.R.M. -RECOVERED 26 OF 26 RUBBER CLAMPS AND 0 OF 2 STAINLESS STEEL CLAMPS 22:00 - 00:00 2.00 PULL P DECOMP CONT POOH WITH CUT OFF 4 1/2"TUBING. -LAY DOWN lEA GLM BETWEEN JT#73/#74 -TOTAL JTS LAID DOWN=103+ CUT-OFF(2.90') -NO OTHER CLAMPS,BANDS,OR 'HARDWARE RECOVERED. 8/20/2013 00:00 - 01:00 1.00 CLEAN P DECOMP CLEAR RIG FLOOR, 01:00 - 01:30 0.50 CLEAN P DECOMP RIG SERVICE,LUBRICATE TDS AND BLOCKS 01:30 - 03:30 2.00 CLEAN P DECOMP TRANSFER TUBING OUT OF PIPE SHED AND LOAD CLEAN OUT BHA 03:30 - 04:00 0.50 CLEAN P DECOMP SET WEAR BUSHING AND RILDS. 04:00 - 07:30 3.50 CLEAN P • DECOMP PU/MU UP CLEAN OUT BHA TO 880'MD PER BAKER REP DIRECTION -MONITOR DISP VIA THE TRIP TANK 07:30 - 10:30 3.00 CLEAN P DECOMP RIH WITH 9-5/8"CLEAN OUT BHA ON 5"DP DOUBLES FROM PIPE SHED F/880'MD TO 3,848' -MONITOR DISP VIA THE TRIP TANK Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 5 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UW: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 10:30 - 11:30 1.00 CLEAN P DECOMP WASH&REAM FROM 3,848'MD TO 4,101 MD -600 GPM,1140 PSI,50 RPM,1-2 K TQ -PUW-150K,SOW-158K, -WASH DOWN WITH NO ROTATION FROM 4,101'MD TO 4,147'MD -TAG TOP OF 4-1/2"TUBING AT 4,147'MD 11:30 - 12:00 0.50 CLEAN P DECOMP PUMP 40 BBL HIGH VIS SWEEP 648 GPM,1345 PSI,20 RPM,3-4K TQ 12:00 - 14:00 2.00 CLEAN P DECOMP MONITOR WELL 10 MIN PRIOR TO PULLING OFF BOTTOM-WELL STATIC -POOH WITH 9-5/8"CLEAN OUT BHA FROM 4,147'MD TO 880'MD -MONITOR DISPLACEMENT VIA THE TRIP TANK 14:00 - 16:00 2.00 CLEAN P DECOMP PJSM FOR LAYING DOWN BHA -LD BHA PER BAKER REP 16:00 - 16:30 0.50 CLEAN P DECOMP CLEAN AND CLEAR RIG FLOOR -SEND OUT ALL CLEAN OUT TOOLS&LEAVE MILLS MADE UP AND SET IN PIPESHED 16:30 - 18:30 2.00 DHB P DECOMP SPOT SLB WIRELINE UNIT ON LOCATION -PU WIRELINE TOOLS TO RIG FLOOR. PJSM WITH SLB AND RIG CREW FOR CORRECT RIG UP OF WIRELINE TOOLS PU/MU EZSV/GR/CCL 18:30 - 23:00 4.50 EVAL P DECOMP RIH WITH EZSV/GR/CCL ON WIRELINE -MAKE CORRELATION LOG PASS,CONFIRM WITH GEO FOR CORRECT SETTING DEPTH. -SET EZSV 5'ABOVE COLLAR AT 3,970', PLACING EZSV CENTER OF ELEMENT AT 3,965'MD(WLM) 23:00 - 00:00 1.00 EVAL P DECOMP POOH WITH E-LINE AND EZSV RUNNING TOOL -LAY DOWN RUNNING TOOL 8/21/2013 00:00 - 01:30 1.50 STWHIP P DECOMP PRESSURE TEST EZSV&9-5/8"CASING TO 250 PSI LOW FOR 5 MIN/3500 PSI HIGH FOR 30 MIN EACH -TEST APPROVED BY BP WTL JIM WILLINGHAM 01:30 - 03:30 2.00 STWHIP P WEXIT PJSM FOR PU BHA,DDI,BAKER,BP MU WHIPSTOCK,ANCHOR&MILLING ASEMBLY BHA AS FOLLOWS: -TRIP ANCHOR,WHIPSTOCK,STARTER MILL, (3)WATERMELLON MILLS,HWDP,FLOAT SUB, MWD,(9)6-1/2"DC'S,(5")HWDP,5"DP 03:30 - 04:30 1.00 STWHIP P WEXIT RIH WITH WHIPSTOCK ASSEMBLY ON 5"DP DOUBLES FROM THE PIPESHED -SHALLOW HOLE TEST MWD AT 943' -445 GPM,550 PSI-GOOD TEST -MONITORING DISPLACEMENT VIA THE TRIP TANK 04:30 - 08:00 3.50 STWHIP P WEXIT RIH WITH WHIPSTOCK ASSEMBLY ON 5"DP DOUBLES FROM THE PIPESHED F/943'MD TO 3,216'MD -FILL PIPE AT 2500' -CONT RIH F/3,216'MD TO 3,973'MD ON 5" DP STANDS FROM THE DERRICK -MONITOR DISPLACEMENT VIA THE TRIP TANK Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 6 of 44 Operation Summary Report Common Well Name.Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868.000.00) Project Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs , Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 08:00 - 09:30 1.50 STWHIP P WEXIT KELLY UP AND ORIENT WHIPSTOCK TO 54 DEG LEFT -500 GPM,850 PSI, -PUW153K,SOW161K, I-SLACK OFF TO 3,974'MD(DPM) AND TAG UP ON EZSV -SET DOWN 20KAND SET TRIP ANCHOR -PICKED UP TO 20K OVER STRING WEIGHT TO VERIFY TRIP ANCHOR SET -SET DOWN WITH 40K DOWNWEIGHT TO SHEAR OFF WHIPSTOCK SLIDE -GOOD SET POOH TO 3,658'MD 09:30 - 11:00 1.50 DHB P WEXIT PJSM FOR FOR PU AND SETTING THE RTTS STORM PACKER -RIH 196'AND SET RTTS PER HALLIBURTON REP DIRECTION -PRESSURE TEST TO 250 PSI LOW AND 2000 PSI HIGH FOR 5 CHARTED MIN -BOTH TESTS GOOD 11:00 - 12:00 1.00 BOPSUR P WEXIT PU 5"DP JOINT AND PULL WEAR BUSHING -SUCK OUT STACK,PREP FOR ND OF RISER AND BELL NIPPLE 12:00 - 15:30 3.50 BOPSUR P WEXIT PJSM FOR ND TUBING SPOOL -PU AND BREAK 13-5/8"GRAY SPOOL CONNECTION WITH BOPE CARRIER SEPERATE FROM BOPE RISER AND TAIL OUT WITH LOADER 15 30 - 16:00 0.50 WHSUR P DECOMP PREP WELL HEAD FOR NEW SPOOL -- — — -REPLACE SEALS, 16:00 - 17:00 1.00 WHSUR P DECOMP INSTALL NEW 9-5/8"TBG SPOOL/MANDREL HANGER NECK SEAL PER CAMERON PORCEDURE 17.00 - 18:00 1.00 WHSUR P DECOMP PRESSURE TEST MANDREL HANGER NECK SEALS AND TUBING SPOOL FLANGE-250 PSI LOW FOR 5 MIN,3,500 PSI HI FOR 30 MIN CHARTED 18:00 - 19:00 1.00 BOPSUR P WEXIT NU BOPE AND RISER,INSTALL BELL NIPPLE INFLATE AIR BOOTS AND INSTALL PS-21 19:00 - 20:00 1.00 BOPSUR P WEXIT SET TEST PLUG AND TEST BOPE BREAKS -250 PSI LOW 3500 PSI HIGH FOR 5 CHARTED MIN-GOOD TEST -LD TEST PLUG&TEST JOINT,INSTALL WEAR RING-9-1/8"ID 20 00 - 22 00 2.00 DHB P WEXIT RIH TO RETRIEVE 9-5/8"RTTS PACKER: -CLOSE FOSV,19 RIGHT HAND TURNS ON DP TO OPEN 9-5/8"RTTS STORM VALVE -CLOSE ANNULAR PREVENTER -OPEN FOSV AND CHECK FOR TRAPPED PRESSURE BELOW THE RTTS. 0-PSI -STRAIGHT PULL RELEASE 9-5/8"RTTS PACKER -CHECK IA FOR PRESSURE.0-PSI ON IA -OPEN ANNULAR PREVENTER POH AND LAY DOWN 9-5/8"RTTS 22 00 - 23:30 1.50 CLEAN P WEXIT PJSM FOR DISPLACING WELL -DISPLACE WELL TO 9.0 PPG LSND PER MI MUD ENGINEER PROCEDURE I -6 BPM,230 PSI Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 7 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 23:30 - 00:00 0.50 CLEAN P WEXIT BLOW DOWN CHOKE AND KILL LINES 1-OBTAIN SPR'S W/9.0 PPG LSND MP#1-20/110,30/140 MP#2-20/110,30/140 8/22/2013 00:00 - 06:00 6.00 STWHIP P WEXIT 1 MILL WINDOWAS PER BAKER REP F/3,953' TO 3,970.(TOW 3,953',BOW 3,970') -320-398 GPM,420-560 PSI,5-10K WOB 70-80 RPM, TQ 4-7K,MW-9.0 PPG PUW-150K,SOW-158K,ROT-156K TOW=3,953'MD,MOW=3,961'MD,BOW= 3.970'MD 250 LBS OF METAL SHAVINGS RECOVERED 06:00 - 08:30 2.50 STWHIP P WEXIT DRILL 20'OF NEW FORMATION F/3,970'MD TO 3,946 TVD -398 GPM,560 PSI,10K WOB,80 RPM,4K TQ, -MW9.01N/9.0OUT: WORK MILLS THROUGH THE WINDOW 3 TIMES-W/398 GPM,50 RPM,SAWA 2K- FT/LB INCREASE IN TQ WHEN GOING 'THROUGH THE WINDOW 1-ALSO SAWA SLIGHT 2K LB WEIGHT 'REDUCTION WHILE GOING IN THE HOLE. 08:30 - 10:00 1.50 STW-ItP P WEXIT PUMP SUPER SWEEP PILL AND CIRCULATE HOLE CLEAN -500 GPM,910 PSI,20 RPM,1-2K TQ, -TOTAL PUMPED: 1-1/2 BOTTOMS UP -MINIMAL CUTTINGS RETURNED FROM SWEEP 10:00 - 11:30 1.50 STWHIP P WEXIT POOH TO 3,920'MD.R/U TEST EQUIPMENT AND PERFORM LOT. -TVD=3,946'MD 13.85 PPG EMW LOT ACHIEVED(994 PSI SURFACE PRESSURE) -FIT APPROVED BY ODE -R/D TEST EQUIPMENT MONITOR WELL FOR 10 MIN-STATIC MW 9.0 PPG IN AND OUT 11:30 - 14:00 2.50 STWHIP P WEXIT POOH FROM 3,920'MD TO 921'MD MONITOR WELL FOR 10 MIN-STATIC -MONITORING DISPLACEMENT VIA THE TRIP TANK-HOLE TAKING CORRECT FILL 14.00 - 17:00 3.00 STWHIP P WEXIT POOH&L/D 8 1/2"WINDOW MILLING 'ASSEMBLY FROM 921' -STAND BACK HWDP,PU JARS AND RACK BACK -L/D 6-1/2"SPIRAL DRILL COLLARS&REST OF MILLING ASSEMBLY -STARTER MILL 1/4"OUT OF GAUGE -LOWER WATERMELON MILL IN GAUGE -BOTH UPPER STRING MILLS IN GAUGE 17:00 - 19:00 2.00 STWHIP P WEXIT CLEAN AND CLEAR RIG FLOOR. -P/U STACK WASHER AND WASH STACK -FUNCTION ALL THE RAMS&PULL WEAR RING AND WASH STACK AGAIN. 19:00 - 20:00 1.00 STWHIP P WEXIT BLOW DOWN CHOKE AND KILL LINES AND INSTALL WEAR RING W/9-1/8"ID 120:00 - 20:30 0.50 STWHIP P WEXIT INSPECT AND GREASE PIPE SKATE. Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 8 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:OOAM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 20:30 - 00:00 3.50 STMILL P WEXIT PJSM FOR MU BHA#2. M/U 8-1/2"INTERMEDIATE DRILLING BHA#1 AND SINGLE IN THE HOLE WITH 5"DP TO 1,100'MD SHALLOW TEST MWD,450 GPM,800 PSI (GOOD TEST) 8/23/2013 00:00 - 03:00 3.00 STWHIP P WEXIT RIH WITH 5'DP STANDS FROM 1,100'TO 3,990'MD,MONITOR DISPLACEMENT ON TRIP TANK 03:00 - 09:00 6.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 3,990'MD TO 4,524'MD 4,409'TVD -600 GPM,1785 PSI ON/1560 PSI OFF,40-80 RPM,5K TQ --P/U=154K.SIO=150K,ROT=152K -5-15K WOB -SURVEY EVERY-100' - AST=1.72 HRS,ART=1.65,ADT=3.37 HRS -MW 9.2 IN/9.2 OUT SPR'S AT 4,524'MD(4,409'TVD),TIME 08:55, MW 9.2 PPG #1 MP-20/30 SPM=200/260 PSI :#2 MP-20/30 SPM=200/260 PSI 09:00 - 09:30 0.50 DRILL P INTI CBU X 2 WHILE ROTATING AND RECIPROCATING. -602 GPM,1530 PSI -100 RPM,13-15K TQ MONITOR WELL FOR 10 MIN-STATIC 09:30 - 14:00 4.50 DRILL P INTI POOH ON ELEVATORS F/4,524'MD TO 738' MD -MONITOR WELL 10 MIN- WELL STATIC -POOH F/738',LD BHA#2 PER SLB DD DIRECTION -BIT GRADE: 1-1-WT-A-E-I-NO-BHA 14:00 - 14:30 0.50 DRILL P INTI CLEAN AND CLEAR RIG FLOOR 14:30 - 16:00 1.50 DRILL P INTI PJSM FOR BOPE TESTING OPERATIONS -RU TEST EQUIPMENT,MU FLOOR VALVES, BREAK SHEAR JOINT,PULL WEAR BUSHING. -SET TEST PLUG. 16:00 - 21:00 5.00 DRILL P INTI TEST BOPE TO 250 PSI LOW,3,500 PSI HIGH FOR 5 MINUTES EACH -TEST WITH 4"&5"TEST JOINTS -ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHARTS -TEST WITNESS WAIVED BY AOGCC REP BOB NOBLE 21:00 - 22:00 1.00 DRILL P INTI RD TEST EQUIPMENT -DRAIN STACK,PULL TEST PLUG SET WEAR RING-9-1/8"ID 22:00 - 23:00 1.00 DRILL P INTI PJSM FOR PICKING UP BHA#3 -PU&RIH W/BHA TO 178' -C/O SLIP INSERTS TO 5" 23:00 - 00:00 1.00 DRILL P INTI RIH WITH RSS BHA#3 -RIH WITH BHA ON 41 SINGLE 5"DP FROM THE SHED TO-1,118' -SHALLOW HOLE TEST-GOOD TEST 8/24/2013 00:00 - 03:00 3.00 DRILL P INTI CONT RIH WITH RSS 8-1/2"BHA#3 F/1,118' MD TO 3,925'MD Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 9 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:00 - 04:30 1.50 DRILL P INTI CUT&SLIP DRILLING LINE. 04:30 - 06:00 1.50 DRILL P INTI RIH WITH BHA#3 -CHECK SHOT SURVEYS AT 4,427'MD, 4,457'MD -WASH LAST STAND TO BOTTOM AT 4,524' MD -CIRCULATE BOTTOMS UP -600 GPM,1655 PSI,80 RPM MW 9.2 IN/9.2 OUT 06:00 - 12:00 6.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE FROM 4,524'MD,T/5,289'MD 4,921'TVD -600 GPM,1900 PSI ON/1820 PSI OFF,80-120 RPM,6K TQ ON,4K TQ OFF --P/U=165K,S/O=154K,ROT=157K -10-15K WOB -SURVEY EVERY-100' - ART=2.80,TOTAL BIT HRS =3.37 HRS -MW 9.2 IN/9.2 OUT SPR'S AT 4,532'MD(4,407'TVD),TIME 05:36, MW 9.2 PPG #1 MP-20/30 SPM=110/140 PSI #2 MP-20/30 SPM=100/130 PSI SPR'S AT 5,005'MD(4,571'TVD),TIME 09:47, MW 9.2 PPG #1 MP-20/30 SPM=120/160 PSI #2 MP-20/30 SPM=120/160 PSI 12:00 - 00:00 12.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 5,289'MD T/6900'MD,5,934'TVD -600 GPM,2260 PSI ON/2230 PSI OFF,80-120 RPM,9K TQ ON,8K TQ OFF --P/U=203K,S/O=171K,ROT=184K -10-15K WOB -SURVEY EVERY-100' - ART=2.91,TOTAL BIT HRS =5.71 HRS -MW 9.2 IN/9.2 OUT SPR'S AT 5571'MD(5050'TVD),TIME 14:10, MW 9.2 PPG #1 MP-20/30 SPM=140/190 PSI #2 MP-20/30 SPM=140/180 PSI SPR'S AT 6044'MD(5305'TVD),TIME 17:40, MW 9.2 PPG #1 MP-20/30 SPM=180/220 PSI #2 MP-20/30 SPM=180/220 PSI SPR'S AT 6516'MD(5609'TVD),TIME 21:00, MW 9.2 PPG #1 MP-20/30 SPM=200/260 PSI #2 MP-20/30 SPM=200/260 PSI Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 10 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual t87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 8/25/2013 00:00 - 12:00 12.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 6,900' MD,TO 8,036'MD 7,007'ND -582 GPM,2630 PSI ON/2440 PSI OFF,130 RPM,13K TQ ON,10K TQ OFF --P/U=255K,SIO=195K,ROT=207K 10-17K WOB -SURVEY EVERY-100' - ART=6.33,TOTAL BIT HRS =14.84 HRS -MW9.45IN/9.45OUT 12:00 - 16:00 4.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 8,036'MD T/8,415'MD,7,359'TVD -582 GPM,2630 PSI ON/2440 PSI OFF,130 RPM,13K TQ ON,10K TQ OFF --P/U=239K,S/0=189K,ROT=207K -10-17K WOB -SURVEY EVERY-100' - ART=2.27,TOTAL BIT HRS =17.11 HRS -MW 9.8 IN/9.8 OUT 16:00 - 18:00 2.00 DRILL P INTI ROTATE AND RECIPROCATE F/8,415'TO 8,225'WHILE-CBU: -CBU X 3,PUMP HIGH VIS SWEEP -550 GPM,2385 PSI -NO NOTICABLE INCREASE IN CUTTINGS RETURNED WITH SWEEP. 18:00 - 21:00 3.00 DRILL P INTI POOH ON ELEVATORS F/8,225'MD TO 6,700' MD -MONITOR HOLE FILL ON TRIP TANK ENCOUNTERED TIGHT SPOT AT-6,700'MD, PULLED 50K OVER -WORKED PIPE DRY. UNABLE TO PULL THROUGH TIGHT SPOT. TIH TWO STANDS AND CIRCULATED BOTTOMS UP.SAWA SIGNIFICANT INCREASE IN CUTTINGS RETURNS ON BOTTOMS UP,25%INCREASE IN SAND WITH SOME SHALE. -MADE ATTEMPT TO PULL ON ELEVATORS F/ '6,900' TO 6,617'MD PULLED 30K OVER.RIH T/ 6,709'MD 21:00 - 00:00 3.00 DRILL P INTI BACK REAM OUT OF THE HOLE F/6,709'MD TO 5,387'MD -572 GPM,2200 PSI,120 RPM,6 K TQ -MW 9.8 IN/9.8 OUT 8/26/2013 00:00 - 02:30 2.50 DRILL P INTI BACK REAM OUT OF THE HOLE F/ 5,387'MD T/4,060'MD -572 GPM,2200 PSI,120 RPM,6 K TQ -PULLED BHA THROUGH THE WINDOW WITH NO ROTATION F/4,060'MD TO 3,935'MD _ 02:30 - 03:00 0.50 DRILL P INTI CIRCULATE BOTTOMS UP X 2 -574 GPM,1860 PSI,50 RPM,1-2K TQ, -OBSERVED A SIGNIFIGANT INCREASE IN AMOUNT OF CLAY BALLS ACROSS THE SCALPERS AT BOTTOMS UP. Printed 10/14/2013 11:30:02AM North America-1�JASKA-BP Page 11 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:00 - 06:00 3.00 DRILL P INTI RIH F/3,935'MD TO 8,415 MD ON ELEVATORS. -MONITOR DISP VIA THE TRIP TANK -FILL PIPE AT 5860',WASH LAST STAND DOWN TO 8,415' -STAGE PUMPS UP TO 550 GPM, -OBSERVED A 30K DRAG AT—4,904',WIPED THE AREA TWO TIMES. 06:00 - 08:30 2.50 DRILL P INTI CIRCULATE BOTTOMS UP X 3 -PUMP 30 BBL HIGH VIS SWEEP -550 GPM,2240 PSI,14-15K TQ,FCP-2160 PSI -MONITOR WELL 10 MIN-WELL STATIC 08:30 - 09:30 1.00 DRILL P INTI POOH ON ELEVATORS F/8,41'MD TO 7,186' MD. -MONITOR DISP VIA THE TRIP TANK, -MONITOR FOR SWABBING -PUW-250K,SOW-190K -MW,IN/OUT-9.8 PPG/9.8 PPG 09:30 - 10:00 0.50 DRILL P INT1 KICK WHILE TRIPPING DRILL FOR WITH BP AUDITOR -AAR -PUMP DRY JOB&BLOW DOWN TOP DRIVE 10:00 - 11:30 1.50 DRILL P INTI -POOH ON ELEVATORS F/7,186'MD TO 4,723' MD BRINGING BIT TO REAMER DEPTH. -MONITOR DISP VIA THE TRIP TANK, 11:30 - 13:30 2.00 DRILL P INTI RIH F/4,723'MD TO 8,415'MD -MONITOR DISP VIA THE TRIP TANK, 13:30 - 15:00 1.50 DRILL P INTI CBU X 3 WHILE ROTATE AND RECIPROCATE F/8,415'MD TO 8,320' -500 GPM,ICP 1930 PSI,FCP-1730 PSI, RPM-120, -PUW-255K,SOW-195K,ROT-214K,TQ-13 -PUMPED HIGH VIS SWEEP, 15:00 - 16:00 1.00 DRILL P INTI INTRODUCE STRESS CAGE TO THE HOLE WITH THE SHAKERS BYPASSED. -500 GPM,ICP-1870 PSI,FCP-1730 PSI,120 RPM,TQ-13 TOTAL 16:00 - 18:30 2.50 DRILL P INTI POOH ON ELEVATORS F/8,415'MD TO 3,870' MD 18:30 - 19:00 0.50 DRILL P INTI CBU WHILE ROTATE AND RECIPROCATE F/ 3,870'MD TO 3,775'MD' -500 GPM,ICP 1930 PSI,FCP-1730 PSI, RPM-50, -PUW-138K,SOW-142K,ROT-136K,TQ-13 Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 12 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 19:00 - 23:00 4.00 DRILL P INTI ATTEMPT OPEN HOLE FIT WITH STRESS CAGE TO 12.0 PPG EMW FOR THE TOP OF THE CM2©6,289'TVD. PUMPED 83 BBLS TO ACHIEVE 719 PSI FOR 12.0 PPG EMW -HELD PRESSURE FOR 30 MIN: - 0 MIN-725 PSI 15 MIN-556 PSI -30 MIN-518 PSI TALKED WITH THE ODE ON RESULTS OF FIT, PROCEED WITH HESITATION SQUEEZE PRESSURE UP TO 720 PSI FROM 549 PSI PUMPING 2.0 BBLS AT 2 BPM -0 MIN-720 PSI -5 MIN-583 PSI -10 MIN-567 PS PRESSURE UP TO 725 PSI FROM 567 PSI PUMPING 4.8 BBLS AT 2 BPM -0 MIN-720 PSI -5 MIN-614 PSI 10 MIN-598 PS PRESSURE UP TO 720 PSI FROM 586 PSI •PUMPING 3.8 BBLS AT 2 BPM -0 MIN-720 PSI -5 MIN-620 PSI -10 MIN-604 PSI PUMPED TOTAL OF 97 BBLS AND BLED BACK 9 23:00 - 00:00 1.00 DRILL P INTI RIH F/3,870'MD TO 5,765'MD -MONITOR DISPLACEMENT VIA THE TRIP TANK 8/27/2013 00:00 - 01:30 1.50 DRILL P INTI RIH F/ 5,765'MD TO 8,322'MD -MONITOR DISPLACEMENT VIA THE TRIP TAN K -WASH DOWN LAST STAND FROM 8322'MD TO 8415'MD 01:30 - 03:30 2.00 DRILL P INTI WASH DOWN LAST STAND FROM 8,322'MD TO 8,415'MD -CBU X 3 TO,SCREEN OUT THE STRESS CAGE MATERIAL -550 GPM,2210 PSI, -ROTATE AND RECIPROCATE WHILE CIRCULATING 03:30 - 04:30 1.00 DRILL P INTI WEIGHT UP MUD FROM 9.8 PPG TO 10.0 PPG -ADD BLACK PRODUCTS W/SPIKE FLUID -550 GPM,2210 PSI, SPR'S AT 8,415"MD(7359'TVD),TIME 04:36, MW 10.0 PPG #1 MP-20/30 SPM=185/240 PSI #2 MP-20/30 SPM=185/230 PSI 04:30 - 08:30 4.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 8,415'MD TO-8,793'MD - 570 GPM,2750 PSI ON/2520 PSI OFF,130 RPM,14KTQ ON,13KTQ OFF --P/U=265K,S/O=194K,ROT=231 K -15K WOB SURVEY EVERY-100' • Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 13 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:O0AM Rig Release:10/3/2013 Rig Contractor DOYON DRILLING INC. UW: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 08:30 - 09:30 1.00 DRILL P INTI ROTATE AND RECIPROCATE WHILE CIRCULATING F/8,698'T/8,793' -WEIGHT UP MUD FROM 10.0 PPG TO 10.5 PPG 570 GPM,2520 PSI,130 RPM,13K TQ 09:30 - 12:00 2.50 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 8,793'MD TO 8,983'MD 7,836'TVD 570 GPM,2750 PSI ON/2600 PSI OFF,130 RPM,14K TQ ON,13K TQ OFF -P/U=269K,S/O=194K,ROT=232K -15KWOB SURVEY EVERY-100' - ART=3.68,TOTAL BIT HRS =20.79 HRS -MW 10.5IN/10.5 OUT SPR'S AT 8,888"MD(7766'TVD),TIME 10:30, MW 10.5 PPG #1 MP-20/30 SPM=180/260 PSI #2 MP-20/30 SPM=180/260 PSI 12:00 - 00:00 12.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 8,983'MD T/9,741 MD, 8,418"TVD - 570 GPM,2510 PSI ON/2457 PSI OFF,130 RPM,17K TQ ON,14K TO OFF --P/U=300K,S/O=198K,ROT=216K -8-10K WOB -SURVEY EVERY-100' - ART=8.6,TOTAL BIT HRS =20.79 HRS -MW 10.5IN/10.5 OUT SPR'S AT 9,360"MD(8,125'TVD),TIME 18:00, MW 10.5 PPG #1 MP-20/30 SPM=240/320 PSI #2 MP-20/30 SPM=220/300 PSI 8/28/2013 00:00 - 06:00 6.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE F/9,741 MD, (TD) AT 10,305'MD,8,849'TVD - 550 GPM,2570 PSI ON/2557 PSI OFF,130 RPM,18K TQ ON,16K TQ OFF --P/U=314K,S/0=207K,ROT=245K -15K WOB -SURVEY EVERY-100' - ART=5.97,TOTAL BIT HRS =35.36 HRS -MW 10.5 IN/10.5 OUT SPR'S AT 9,360"MD(8,125'TVD),TIME 18:00, MW 10.5 PPG #1 MP-20/30 SPM=240/320 PSI #2 MP-20/30 SPM=220/300 PSI 06:00 - 10:30 4.50 DRILL P INTI LOST CIRCULATION AT TD: 10,305'MD -INITIAL LOSS RATE 305 BPH,SLOWED PUMP -REDUCED RATE TO 450 GPM,LOSS RATE DIMINISHED TO 135 BPH. -REDUCE RATE TO 200 GPM,LOSS RATE DIMINISHED TO 30 BPH 10:30 - 11:00 0.50 DRILL P INTI POOH ON ELEVATORS TO 10,249'MD -PUMP A 40 BBL(40 PPB)LCM PILL 300 GPM,920 PSI, 11:00 - 12:30 1.50 DRILL P INTI CONT POOH ON ELEVATORS F/10,249'MD TO 9,350'MD -MONITOR HOLE FOR STATIC LOSS RATE- 0 Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 14 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12:30 - 13:00 0.50 DRILL P INTI RECIPROCATE PIPE F/9,360'MD TO 9,450'MD -STAGE PUMPS F/200 GPM TO 550 GPM -200,550 PSI,LOST 0 BBLS IN 10 MIN -300,880 PSI,LOST 2 BBLS IN 7 MIN -400,1490 PSI,LOST 0 BBLS IN 5 MIN -500,2070 PSI ,LOST 2 BBLS IN 5 MIN -550 13:00 - 13:30 0.50 DRILL P INTI CONTINUE ROTATING AND RECIPROCATING F/9,360'MD TO 9,450'MD WHILE CIRCULATING -550 GPM,2400 PSI, -LOSS RATE WHILE CIRCULATING-12 BPH -WSL CONFIRM WITH TOWN LEADER SHIP ON PLAN FORWARD 13:30 - 14:30 1.00 DRILL P INTI PUMP OUT OF THE HOLE F/9,360'MD TO 8,417'MD(ABOVE THE HRZ) -85 GPM,200 PSI, -PUW-255K,SOW-188K - MW 10.5 IN/10.5 OUT 14:30 - 16:30 2.00 DRILL P INTI TIH ON ELEVATORS F/8,417 MD TO 9,705'MD -MONITORING DISPLACEMENT ON THE TRIP TANK -TIGHT SPOT AT 9,525'MD,WIPED THROUGH X 3 -TIGHT SPOT AT 9,705'MD,ABLE TO WORK THROUGH ONE TIME —TIGHT SPOT AT 9,810'MD,UNABLE TO PASS THROUGH -PU TO 9,740'MD -START WASHING AND REAMING TO BOTTOM 16:30 - 18:30 2.00 DRILL P INTI REAM DOWN F/9,740'MD TO 10,285'MD -400 GPM,1540 PSI,14K TQ, -PUW-315K,SOW-200K -ZERO LOSSES WHILE REAMING DOWN -SHUT DOWN PUMPS,RIH AND TAG BOTTOM AT 10,305' POOH TO 10,285'MD 18:30 - 21:30 3.00 DRILL P INTI STAGE PUMPS UP F/200 GPM TO 550 GPM TO ESTABLISH DYNAMIC LOSS RATE: -200-520 PSI,40 RPM, LOST 0 BBLS IN 10 MIN -300-880 PSI,40 RPM,LOST 0 BBLS IN 10 MIN -400-1470 PSI,40 RPM, LOST 2 BBLS IN 10 MIN -500-2160 PSI,40 RPM,LOST 0 BBLS IN 10 MIN LOST TOTAL OF 2 BBLS WHILE STAGING PUMPS UP RESET STROKE COUNTER AND STARTED PUMPING BOTTOMS UP X 2, WHILE ROTATING AND RECIPROCATING THE PIPE -550 GPM ICP-2500 PSI/FCP-2375,130 RPM,16-17 K TQ - ZERO LOSSES DURING CIRCULATION SHOUT DOWN AND MONITOR WELL-WELL STATIC Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 15 of 44 Operation Summary Report Common Well Name.Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date 9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12.00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum.Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth I Phase Description of Operations (hr) (usft) 21:30 - 00:00 2.50 DRILL P i INTI PUMP OUT OF THE HOLE FROM 10,285'MD TO 8,417 MD -85 GPM,200 PSI -PUW-255 K,SOW-188K - MW 10.5 IN/10.5 OUT -LOST 6 BBL WHILE PUMPING OUT OF THE HOLE=LESS THAN 2 BPH LOSS RATE 8/29/2013 00:00 - 01:30 1.50 DRILL P INTI MONITOR WELL FOR 10 MIN-WELL STATIC -TIN FROM 8,417'MD,TO 10,217'MD -MONITOR DISPLACEMENT VIA THE TRIP TANK 01:30 - 02:00 0.50 DRILL P INTI FILL PIPE AND WASH DOWN F/10,217'MD TO 10,285'MD -250 GPM,780 PSI, -SHUT DOWN PUMPS,RIH&TAG BOTTOM ON DEPTH @ 10,305'MD -POOH TO 10,300'MD AND TAKE SURVEY WITH 378 GPM,780 PSI SPR'S AT 10,300"MD(8,845'TVD),TIME 01:45, MW 10.5 PPG #1 MP-20/30 SPM=250/330 PSI #2 MP-20/30 SPM=240/320 PSI 02:00 - 04:30 2.50 DRILL P INTI ROTATE AND RECIPROCATE F/10,284'MD T/ 10,211'MD WHILE CIRCULATING BOTTOMS UP X 3, -STAGE PUMPS UP TO 550 GPM,ICP-2370 PSI,FCP-2240 PSI,120 RPM. -DUMP AND TREAT 290 BBLS OF MUD -RAISE TOTAL LUBE TO 4% -SPOT 25 BBL(40 PPB)LCM PILL ON BOTTOM AT 10,284' -FLOW CHECK WELL-WELL STATIC LOST TOTAL OF-15 BBLS DURING CIRCULATION 04:30 - 07:00 2.50 DRILL P INTI PUMP OUT OF THE HOLE F/10,284'MD TO -8,417'MD -84 GPM,100 PSI,MONITOR THE HOLE VIA PITS 2-3 -MW-IN/OUT-10.5 PPG 07:00 - 10:00 3.00 DRILL P INTI POOH ON ELEVATORS F/8,417'MD TO 3,871' MD -MONITOR TRIP DISPLACEMENT VIA THE TRIP TANK -MW-IN/OUT-10.5 PPG 10:00 - 13:00 3.00 DRILL P INTI SLIP AND CUT DRILLING LINE -CUT 118' -MAINTAIN HOLE FILL DURING OPERATION -CALIBRATE BLOCK HEIGHT -INSPECT TOP DRIVE&BLOCKS, CHANGEOUT TOP DRIVE GUIDE RAIL BOLTS Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 16 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:OOAM Rig Release:10/3/2013 Rig Contractor DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 13:00 - 18:00 5.00 DRILL P INTI POOH WITH DRILLING BHA#3 ON ELEVATORS F/3,871'MD TO 680'MD -MONITORING TRIP VIA THE TRIP TANK -MONITOR WELL PRIOR TO PULLING BHA- WELL STATIC -PULL AND LD DRILLING BHA#3 F/680'MD TO SURFACE PER SLB DD -BIT AND STABILIZERS IN GAUGE AND WITH LITTLE WEAR -BIT GRADE 2-1-CT-A-X-I-NO-TD -GHOST REAMER IN GAUGE,WITH WEAR ON LOWER PART OF THE BLADES 18:00 - 18:30 0.50 DRILL P INTI CLEAN AND CLEAR RIG FLOOR -PREP FOR RAM CHANGE OUT AND 7" CASING RUN 18•30 - 19'30 1.00 BOPSUR P INTI PU 5"SHEAR JOINT,FOR BOPE FUNCTION TESTING -FUNCTION TEST UPPER/LOWER RAMS= 19 SEC CLOSING TIMES -FUNCTION TEST ANNULAR=30 SEC CLOSING TIME -PULL WEAR BUSHING,LD SHEAR JOINT, -FUNCTION TEST BLIND SHEAR RAMS=18 SEC CLOSING TIME 19:30 - 20:30 1.00 BOPSUR P INTI PJSM FOR CHANGING OUT BOPE RAMS -CHANGE OUT UPPER 2-7/8"X 5-1/2" VRB'S TO 7"SOLID BODY CASING RAMS -CHANGE OUT AIR BOOTS ON LOW PRESSURE RISER. -BARRIERS FOR CHANGING OUT RAMS: TESTED BLIND SHEAR RAMS,10.5 PPG KWF 20:30 - 21:30 1.00 BOPSUR P INTI INSTALL TEST PLUG -TEST 7"RAMS&XT 39 FOSV -TEST 7"RAMS WITH 7"TEST JOINT TO 250 LOW/3500 HIGH FOR 5/5 MIN -PULL TEST PLUG,RD TEST EQUIPMENT, LD 7"TEST JOINT -INSTALL WEAR BUSHING-9-1/8"ID 21:30 - 00:00 2.50 CASING P INTI RU 7"CASING RUNNING EQUIPMENT -MU 7"X 9-5/8"LINER HANGER WITH 7"JOINT BELOW AND 5"DP PUPS ON TOP,STD BACK -P/U 7"CEMENT HEAD WITH 5"DP PUP AND FULL JOINT AND TQ UP 8/30/2013 00:00 - 01:30 1.50 CASING P INTI -P/U 7"CEMENT HEAD WITH 5"DP PUP AND FULL JOINT AND TQ UP -CHANGE OUT SLIP INSERTS&ELEVATORS 01:30 - 02:00 0.50 CASING P INTI PJSM FOR RUNNING 7"LINER -MU&BAKER LOCK SHOE TRACK,JOINTS# 1-3 - FILL LINER AND VERIFY FLOATS HOLDING. FLOATS GOOD Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 17 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 02:00 - 16:30 14.50 CASING P INTI -P/U&RIH W/ 7",26 LB-FT,HYDRILL 563 LINER,F/127'TO 3,941' -CIRCULATE 1.5 X LINER VOLUME AT 3,941' MD -ROTATE AT ABOVE THE 9-5/8"WINDOW AT 10 RPM W14KTQ -CONTINUE IN HOLE TO 6,489'MD,LD TWO BAD JOINTS -MU 9-5/8"X 7"LINER TOP PACKER AND HANGER FROM THE DERRICK,C/O SLIP INSERTS -RIH WITH LINER ON 3,770'OF 5"DP TO 10,287'MD. MU CEMENT HEAD AND WASH DOWN @ 1 BPM,500 PSI,TAG ON DEPTH AT 10,303' -APPLY JET LUBE SEAL GUARD.TORQUE TURN ALL CONNECTIONS TO TO 9,400 FT-LB. -FILLING CASING EVERY JOINT AND TOPPING OFF EVERY 10 RUN 10 7-18"X 8"HYDROFORM CENTRALIZER S FREE FLOATING. MW 10.5 IN/10.5 OUT,NO LOSSES WHILE RUNNING IN -TOP OF LINER 3,782' 16:30 - 19:30 3.00 CASING P INTI STAGE PUMPS UP F/1 BPM,500 PSI, T/6 BPM,1000 PSI -HOLE PACKED OFF WITH A 400 PSI INCREASE TO 1400 PSI -REDUCED PUMP RATE TO 1 BPM,1000 PSI, WITH SLIGHT RETURNS -ATTEMPTED TO WORK THE STRETCH IN THE PIPE WITHOUT PULLING OFF BOTTOM WHILE PUMP IN AT 1 BPM,1000 PSI -LOST COMPLETE RETURNS -SHUT DOWN PUMP AND WORK PIPE -PIPE BROKE FREE WITH 430 K PUW,185 K SOW -PU TO 10,290'MD WSL CONSULTED WITH ODE,WTL&OPS SUPT ON PLAN FORWARD LOST 62 BBLS TOTAL 19:30 - 21:30 2.00 CASING P INTI ATTEMPT TO ESTABLISH CIRCULATION AT 10,290' -0.5 BPM-200 PSI,6%FO -1.0BPM-380 PSI ,10%FO -1.5BPM-390 PSI,10%FO -LOST CIRCULATION,WELL PACKING OFF AGAIN -SHUT DOWN PUMPS Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 18 of44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:OOAM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code . NPT NPT Depth Phase Description of Operations (hr) (usft) 21:30 - 00:00 2.50 CASING P INTI -WORK PIPE FREE WITH NO PUMPS,BROKE FREE WITH 360K PUW -SET ROTATION TORQUE LIMIT AT 24K -ROTATE PIPE AT 10 RPM,WITH 20 TQ,231K ROT Wt -ESTABLISH CIRCULATION STAGING PUMPS UP -F/0.5 BPM TO 6 BPM-1.0 BPM-270 PSI -1.5BPM-300 PSI,7%FO -2 BPM-350 PSI ,12%FO -3 BPM-430 PSI,18%FO -4 BPM-560 PSI ,21%FO -5BPM-708 PSI,22%FO -6 BPM-770 PSI,24%FO STARTING AT(23:00)CIRCULATE AT 6 BPM, 770-870 PSI,22-24%FO,10 RPM'S 8/31/2013 02:00 - 03:00 1.00 CEMT P INTI HOLD PJSM WITH RIG CREW,SLB CEMENT CREW AND BPXA BLOW DOWN LINES FROM THE RIG TO THE UNIT -PRESSURE TEST SURFACE LINES TO 250 PSI LOW& 4500 HIGH PSI. -BEGIN BATCHING 15.8 PPG TAIL CEMENT 00:00 - 01:30 1.50 CASING P INTI CIRCULATE AT 6 BPM,770-870 PSI,22-24% FO,10 RPMS -NO SIGNIFICANT LOSSES DURING CIRCULATION- 6 BBLS TOTAL 01:30 - 02:00 0.50 CASING P INTI SLACK OFF WITH PUMPS AT 6 BPM,700 PSI, 10 PRM F/10,290'MD TAG UP ON DEPTH AT 10,305' MD -PUW-343K,SOW-168K,ROT-217K -MU A 5'PUP ON BOTTOM OF THE CEMENT HEAD Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 19 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:O0AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:00 - 05:30 2.50 CEMT P INTI CEMENT 7"INTERMEDIATE CASING LINER AS FOLLOWS: -PUMP 30 BBLS 12 PPG MUD PUSH AT 5 BPM -PUMP 47.4 BBLS,15.8 PPG CLASS G TAIL CEMENT AT 5.0 BPM, -YIELD 1.16 CU FT/SX(229 SX)EXCESS VOLUME 30%,1.5 PPB CEM NET,5.165 GAL/SX MIX H2O RATIO,500 PSI COMPRESSIVE STRNGTH IN 13 HR 44 MIN DROP DRILL PIPE WIPER DART.POSITIVE INDICATION DART LEFT CEMENT HEAD. -DISPLACE WITH RIG PUMPS WITH 10.5 PPG LSND MUD PER SLB CADE -52 BBLS DISPLACED AT 6 BPM:ICP-134 PSI, FCP-750 PSI -10 BBLS DISPLACED AT 3 BPM:ICP-129 PSI, FCP-160 PSI-FOR LATCH UP -LATCH UP CONFIRMED AT 52.3 BBLS DISPLACED -180 BBLS DISPLACED AT 5 BPM:ICP-380 PSI ,FCP-480 PSI -50 BBLS DISPLACED AT 3 BPM:ICP-270 PSI, FCP-700 PSI .-REDUCE RATE TO 1.5 BPM PRIOR TO PLUG BUMP:FINAL CIRCULATING PRESSURES-650 PSI - RECIPROCATION THROUGHOUT JOB @ 10 RPM -TOTAL DISPLACEMENT VOLUME 347 BBLS MEASURED BY STROKES PUMPED AT 96% EFF -CEMENT IN PLACE AT 05:14 -BUMP PLUG AND INCREASE PRESSURE TO_ 3000 PSI TO SET LINER HANGER -SLACK OFF TO 70K TO CONFIRM HANGER SET-GOOD INCREASE PRESSURE TO 4200 PSI TO RELEASE RUNNING TOOL. -BLEED PRESSURE AND CHECK FLOATS- FLOATS HOLDING -SET DOWN 50K TO SET LINER TOP PACKER, PU AND REPEAT WITH 10 RPM TO CONFIRM RELEASE NO LOSSES WHILE PUMPING CEMENT OR PUMPING DISPLACEMENT 05:30 - 06:30 1.00 CASING P INTI PU RUNNING TOOLK ABOVE LINER TOP AND MARK NO GO -CIRC B/U @ 14 BPM,560 PSI,40%FLOW OUT. NO CEMENT TO SURFACE ON BOTTOM UP 06:30 - 11:30 5.00 CASING P INTI -L/D CEMENT HEAD.BLOW DOWN TOP DRIVE -MONITIOR WELL FOR 10 MIN:WELL STATIC. -MUD WEIGHT:10.6 PPG IN,10.6 OUT -POOH ON ELEVATORS WHILE L/D 5"DP FROM 3782'MD TO SURFACE. -L/D BAKER RUNNING TOOL. -MONITOR WELL VIA TRIP TANK.WELL TOOK PROPER DISPLACEMENT. Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 20 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual(§87.85usft(above Mean Sea Level) Date From-To Hrs I Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 11:30 - 16:30 5.00 CASING - P INTI -RIH WITH 5"DP FROM DERRICKTO 3132'MD. TOH LAYING DOWN 5"DP. -MONITOR WELL VIA TRIP TANK.WELL TOOK NORMAL DISPLACEMENT. 16:30 - 17:30 1.00 BOPSUR P INTI -C/O UPPER 7"RAMS TO 2 7/8"X 5 1/2"VBRS. -BARRIORS WERE KILL WEIGHT FLUID AND TESTED BLIND RAMS. 17:30 - 00:00 6.50 BOPSUR P INTI PULL WEAR BUSHING AND INSTALL TEST PLUG&FILL LINES. -TEST BOPE TO 250 PSI LOW,3500 PSI HIGH FOR 5 MINUTES EACH -TEST WITH 5"AND 4"TEST JOINTS -ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHARTS -TEST WITNESSED BY AOGCC REP JOHN 1 CRISP -PULL TEST PLUG,INSTALL 8 15/16"ID WEAR BUSHING 9/1/2013 00:00 - 07:00 7.00 CEMT P INTI RIH WITH 5"DP F/DERRICK TO-3,000' -POOH LD SINGLES TO THE PIPE SHED -MONITOR DISPLACEMENT VIA THE TRIP TANK. 1-BREAK DOWN 5"SHEAR JOINT '!-CHANGE OUT SAVER SUB, 1-CHANGE OUT ELEVATORS 8 SLIP INSERTS, TO 4" -LOAD BHA#4 IN SHED 07:00 - 09:00 2.00 CEMT P INTI 'PU AND RIH WITH 4"DOUBLES TO-1000' -POOH RACKING BACK IN DERRICK -MONITOR DISPLACEMENT VIA THE TRIP TANK. 09:00 - 10:30 1.50 CEMT P INTI PJSM FOR PICKING UP 6-1/8"DRILLING BHA -MU 6-1/8"BUILD BHA PER SLB DD,T/186' -DAMAGED THE SLIMPULSE TOOL WHILE PICKING UP TOOL OFF OF PIPE SKATE. 10:30 - 16:30 6.00 CEMT P INTI CONTINUE WITH DP MANAGEMENT -RIH W/DOUBLES F/PIPE SHED,PULLING OUT RACKING BACK. -MONITOR DISPLACEMENT VIA TRIP TANK 16:30 - 17:00 0.50 CEMT P j INTI RIG SERVICE -SERVICE TOP DRIVE,BLOCKS AND IRON ROUGHNECK 17:00 - 20:00 3.00 CEMT P INTI PJSM FOR MU BHA: MU 6-1/8"BUILD BHA#4 PER SLB DD -RIH ON DOUBLES FROM PIPE SHED TO 1,400'MD FOR SHALLOW HOLE TEST -236 GPM,1497 PSI-GOOD TEST -MONITORING TRIP VIA TRIP TANK,FILLING PIPE EVERY 20 STANDS 20:00 - 00:00 4.00 CEMT P INTI CONT RIH WITH 6-1/8"BUILD BHA#4 TO 6700' -MONITOR WELL VIA TRIP TANK -FILL PIPE EVERY 20 STANDS 9/2/2013 00:00 - 02:00 2.00 CEMT P INTI CONT RIH WITH 6-1/8"MOTOR BHA#4 TO 10142' -MONITOR WELL VIA TRIP TANK -FILL PIPE EVERY 20 STANDS Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 21 of 44 Operation Summary Report Common Well Name.Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI. Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth I Phase Description of Operations (hr) (usft) 02:00 - 03:30 1.50 CEMT P INTI TAG CEMENT AT 10,142' -SET 5-10K DOWN -KELLY UP AND BRING PUMPS UP TO 6 BPM, WASH STAND DOWN @ 2200 PSI FOR 5 MIN -MAKE CONNECTION AND BRING PUMPS TO 6 BPM -DPP INCREASED TO 3000 PSI AFTER 20' -RACKED BACK A STAND AND BROUGHT PUMPS TO10SPM @1800PSI -BROUGHT PUMPS UP TO 20 SPM @ 3200 PSI -KICKED IN ROTARY-PRESSURE SPIKED TO 4000 PSI -SHUT OFF PUMPS-PRESSURE SLOWLY BLEED TO 900 PSI AND HELD -CYCLED PUMPS AND CONTINUED TO QUICKLY BUILD PRESSURE TO 4000PSI AT 10 SPM -REPEAT ABOVE STEPS IN ATTEMPT TO CLEAR OBSTRUCTION -P/U WT:201K,S/0 WT:137K -CONTACT WTL TO DISCUSS PLAN FORWARD 03:30 - 09:30 6.00 CEMT N DFAL INTI DECISION MADE TO POOH AND CHECK BIT AND BHA -TOOH WITH 6 1/8"BHA ON ELEVATORS -MONITOR DISPLACEMENT VIA TRIP TANK ATTEMPT TO CIRCULATE AT 8750',2740'1698' AND AFTER STANDING BACK THE JARS AND HWDP.EACH ATTEMPT WAS UNSUCCESSFUL. PRESSURE IMMEDIATELY WENT UP TO 3000 TO 4000 PSI. 09:30 - 10:00 0.50 CEMT N DFAL INTI MONITOR WELL FOR 10 MINUTES. I CHANGE SLIP INSERTS. PJSM FOR LAYING DOWN BHA COMPONENTS. 10:00 - 11:00 1.00 CEMT N DFAL INTI LAY DOWN CIRC SUB AND FLOAT SUB. INSPECT FOR DEBRIS. STAND BACK DRILL COLLARS. PULL SLIM PULSE TOOL UP 5'TO INSPECT FOR RESTRICTIONS. MAKE UP CROSS OVER AND TOP DRIVE. ATTEMPT TO CIRCULATE.PRESSURE IMMEDIATELY WENT UP TO 800 PSI. PICK UP MOTOR TO BIT AND ATTEMPT TO DRAIN.NO SUCCESS. ATTEMPT TO DRAIN MOTOR BY ROTATING. THE MOTOR WOULD NOT TURN. BREAK OFF BIT. 11:00 - 12:30 1.50 CEMT N DFAL INTI REMOVE TOP DRIVE. PULL AND LAY DOWN SLIM PULSE. LAY DOWN NM FLEX PONY COLLAR AND MUD MOTOR. -- 12:30 - 13:30 1.00 CEMT N DFAL INTI CLEAN AND RIG FLOOR. Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 22 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 13:30 - 20:00 6.50 CEMT N DFAL INTI PJSM FOR MU BHA: MU 6-1/8"BUILD BHA#5 PER SLB DD -RIH ON STANDS FROM DERRICK TO 1,400' MD FOR SHALLOW HOLE TEST 236 GPM,1497 PSI-GOOD TEST MONITORING TRIP VIA TRIP TANK,FILLING PIPE EVERY 20 STANDS CONT RIH WITH 6-1/8"BUILD BHA#4 TO 10,055'MD -MONITOR WELL VIA TRIP TANK -FILL PIPE EVERY 20 STANDS MU TOP DRIVE AND WASH DOWN F/10,055' T/10,215'MD -6 BPM,2225 PSI,10 RPM, -TAG UP ON FLOAT COLLAR @ 10,215'MD WITH PUMPS OFF,SET 10 K DOWN TO VERIFY. -PUW-212 K,SOW-143K -PU AND CIRCULATE 20:00 - 20:30 0.50 CEMT P INTI RECIPROCATE PIPE WHILE DISPLACING WELL DISPACE WELL TO 8.7 PPG POWERPRO MUD -250 GPM,ICP-2200 PSI/FCP-1240 PSI -MW IN/OUT-8.7 PPG SPR: 10,146'MD(8,748'TVD)-TIME=22:00, MW=8.7 PPG #1 MP-20/30 SPM=380/520 PSI #2 MP-20/30 SPM=350/480 PSI 20:30 - 23:30 3.00 CEMT P INTI PRESSURE TEST LINER AND LINER LAP TO -250 PSI LOW/3500 PSI HIGH FOR 30 MIN- CHARTED- -ENTERED RESULT IN THE BP(WELLBORE INTEGRITY TESTING CRITERIA CALCULATOR) TEST PASSED CRITERIA FOR CASING INTEGRITY TEST PER BP ETP 10-45 -SENT RESULTS TO WTL&OPERATIONS MANAGER -RECEIVED ATP FROM CTD TEAM LEAD 23:30 - 00:00 0.50 CEMT P INTI PERFORM NEGATIVE PRESSURE TEST FOR 30 MIN(GOOD) -VISUAL CONFIRMATION OF NO FLOW -RECEIVED VERBAL AUTHORIZATION FROM CTD TEAM LEAD BASED ON VISUAL CONFIRMATION FROM WSL. 9/3/2013 00:00 - 05:00 5.00 CEMT P INTI DRILL OUT SHOE TRACK: -DRILL PLUGS AND LANDING COLLAR F/ 10,215'MD TO THE SHOE AT 10,305'MD -250 GPM,1350 PSI,10-40 RPM,4-5 TQ, WOB-4-5 K -PUW-183 K,SOW-169K -MW IN/OUT-8.7 PPG -DRILL 20 FT OF NEW HOLE: 10,305 TO 10,325'. -SLIDE PARAMETERS,DPP:1320 PSI OFF 1375 PSI ON,F/O 21%:, 250 GPM,WOB:10-20 KLBS MUD WEIGHT 8.6 IN,8.6 OUT Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 23 of 44 Operation Summary Report -. ---- ,x... .: s '�i+NwS LISx't.. ..^.F"1-✓rd,? L4/ . ,vF r+X..--. Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 1X3-012X7-C:DRILL(10,868,000.00) 1 Project: Bay Prudhoe Site:PB Y Pad Rig Name/No.:DOYON 25 1 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 05:00 - 06:00 1.00 CEMT P INTI PULL BIT BACK INTO THE T'SHOE. CIRCULATE BOTTOMS UP TO GET 8.6 PPG MUD IN AND OUT RECIPROCATE PIPE WHILE CIRCULATING -250 GPM,1375 PSI, -MW IN/OUT-8.6PPG 06:00 - 07:30 1.50 CEMT P INTI PERFORM AN FIT WITH THE T'SHOE AT 10,303'MD,8849'TVD PUMPED 4.5 BBL 8.6 PPG MUD PRESSURE BROKE OVER AT750 PSI EMW 10.23 PPG RECEIVED PERMISSION TO CONTINUE FROM ODE. PUMP 23 BBL LUBE SWEEP CONSISTING OF '10%"STEEL LUBE EP' DUMPED SWEEP ON SURFACE. 07:30 - 12:00 4.50 DRILL P PROD1 DRILL 6-1/8"PRODUCTION BUILD SECTION FROM 10,325'MO TO 10,337'MD 8875'TVD - 270 GPM,1580 PSI ON/1480 PSI OFF. -SLIDING TO START BUILD SECTION - P/U=198K,S/O=160K. -20K WOB' - AST=3.17 HRS, ART=.3 HRS,TOTAL BIT HRS =3.47 HRS i 1 -MW 8.6 IN/8.6 OUT SPR AT 10,146"MD(8748'TVD),TIME 22:30, MW 8.65 PPG #1 MP-20/30 SPM=380/520 PSI E _ #2 MP-20/30 SPM=350/480 PSI 12:00 - 14:00 2.00 DRILL P PROD1 DRILL6-1/8"PRODUCTION BUILD SECTION FROM 10,337'MD TO 10,432'MD xx'ND I i 2690 GPM,1488 PSI ON/1400 PSI OFF,40 RPM,4.5KTQ -P/U=154K,S/O=150K,ROT=152K -15K WOB MW 8.6 IN/8.6 OUT I I SMALL AMOUNT OF CONNECTION GAS AT 10,418'MD 14:00 - 16:00 2.00 DRILL P PROD1 HOLE ANGLE BUILDING TOO QUICKLY,22°AT BIT. BACK REAM 1 STAND AND REAM DOWN TRYING TO WIPE OUT SOME ANGLE REAM STAND AT 40 RPM,270 GPM WITH 1512 PSI. TAKE A CHECK SHOT SURVEY. Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 24 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:OOAM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 16:00 - 00:00 8.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION BUILD SECTION FROM 10,432'MD TO 10,751'MD(8998'TVD -270 GPM,1680 PSI ON/1550 PSI OFF,40 RPM,6KTQ --P/U=198K,S/O=159K,ROT=171K -15K WOB - AST=3.76 HRS,ART=1.14,ADT=4.9 HRS -MW 8.6IN/8.6 OUT -JAR HRS=8.37 -HAD DIFFICULTY HOLDING DLS BELOW 22° SMALL AMOUNTS OF CONNECTION GAS BEING SEEN -SPR©10,716'MD,9013'TVD -#1 MP 20/30 SPM=500/620 PSI -#2 MP 20/30 SPM=480/620 PSI MUDWr=8.6PPG 9/4/2013 00:00 - 02:00 2.00 DRILL P PROD1 HOLE ANGLE BUILDING TOO QUICKLY TO 22° AT BIT. BACK REAM F/10751'MD TO 10,524'AND REAM DOWN TRYING TO WIPE OUT SOME ANGLE BACK REAM AT 40 RPM,270 GPM WITH 1600 PSI. -5K TO TAKE A CHECK SHOT SURVEYS. 02:00 - 06:00 4.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION BUILD SECTION FROM 10,751'MD TO 10,875'MD(8993'TVD -270 GPM,1680 PSI ON/1550 PSI OFF,40 RPM,6KTQ -P/U=198K,S/O=159K,ROT=171K -15K WOB -CONTINUING TO EXPERIENCE CONNECTION GAS. 06:00 - 12:00 6.00 DRILL P PROD1 DRILL 6-1/8" PRODUCTION BUILD SECTION FROM 10,875'MD TO 11,003'MD 8945'TVD -270 GPM,1734 PSI ON/1550 PSI OFF,40 RPM,6KTQ -P/U=191K,S/O=153K,ROT=173K,-15-25K WOB -AST=2.91 HRS, ART=3.12 HRS,TOTAL BIT HRS =14.4 HRS -JAR HRS=14.4 MW 8.6 IN/8.6OUT CONSULT WITH ODE TO RAISE MUD WEIGHT TO 8.8 PPG. IN AN ATTEMPT TO CONTROL THE CONNECTION GAS. NOTED AT 10,450'A MUD LOSS OF 4 BBL. THE RETURN FLOW DIPPED FROM 22%TO 7%AND RETURNED TO 22% 12:00 - 13:00 1.00 DRILL P PROD1 TAKE DIRECTIONAL SURVEYS. 13:00 - 17:00 4.00 DRILL P PROD1 CIRCULATE 3 X BOTTOMS UP CIRCULATE AT 269 GPM WITH 1422 PSI RECIPROCATE PIPE WHILE CIRCULATING. MUD WEIGHT IN AND OUT 8.8 PPG. NO SIGNIFICANT DIFFERENCE IN GAS ON BOTTOMS UP. NO PIT GAIN WITH GAS OFF BOTTOM. Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 25 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs j Task Code NPT I NPT Depth ' Phase I Description of Operations (hr) (usft) 17:00 - 21:00 4.00 DRILL P PROD1 CIRCULATE AND RECIPROCATE PIPE F/ 11,002'MD TO 10,095'MD WHILE BRINGING MUD WT TO 9.0 PPG -250 GPM, 1,420 PSI -PU 191K, SO 153K,ROT 173K OBTAIN SPR'S @11,000 MD W/9.0 PPG MUD WI -#1 MP-20/30 SPM=480/620 PSI -#2 MP-20/30 SPM=500/640 PSI 21:00 - 21:30 0.50 DRILL N DPRB 10,687.31 PROD1 MONITOR WELL-STATIC -PUMP OUT OF HOLE F/11,002'MD TO 10,685' MD 21:30 - 22:00 0.50 DRILL N DPRB 10,687.31 PROD1 CIRCULATE AND RECIPROCATE PIPE F/ 10,690'MD TO 10,620'MD -WAIT FOR SLB COMPUTER TO REBOOT 22:00 - 00:00 2.00 STKOH N DPRB 10,722.31 PROD1 BEGIN TROUGHING AS PER SLB DD F/10,690' MD TO 10,718'MD -250 GPM, 1450 PSI -PU WT=200K,SO WT=152K 9/5/2013 00:00 - 05:30 5.50 STKOH N DPRB 10,790.31 PROD1 TIME DRILL 6-1/8"OPEN HOLE SIDE TRACK -F/10,718'MD TO 10,738'MD @10 FPH -F/10,738'MD TO 10,768'MD @ 15 FPH -F/10,768'MD TO 10,788'MD @ 20 FPH -270 GPM,1600 PSI -40 RPM,5/6K TQ 05:30 - 13:00 7.50 • STKOH N DPRB 11,026.31 PROD1 DIR DRILL6-1/8"PRODUCTION HOLE SIDE TRACK -F/10,788'MD/8,990'TVD TO 11,024'MD/ 8.947'TVD -270 GPM,1770 PSI ON/1600 PSI OFF,40 RPM,7K TQ -P/U=190K,5/0=150K,ROT=171K, 20K WOB -AST=1.27 HRS, ART=7.56 HRS,TOTAL BIT HRS =23.23 HRS -JAR HRS=23.23 MW 8.6 IN/8.6 OUT -SPR @ 11,001'MD/8916'TVD W/9.0 PPG MUD WT -#1 MP 20/30 SPM=480/620 PSI -#2 MP 20/30 SPM=500/640 PSI 13:00 - 15:30 2.50 DRILL P PROD1 MONITOR WELL 10 MIN j -ROTATE AND RECIPROCATE PIPE F/ 11,024'MD TO 10,095 -270 GPM,1650 PSI -40 RPM,5K TQ -PU WT=190K,SO WT=150K,ROT WT=1711< 15:30 - 17:00 1.50 DRILL P PROD1 MONITOR WELL 10 MIN -PUMP OUT OF HOLE F10,906'MD TO 10,430' MD -250 GPM,1430 PSI 17'00 - 20:00 3.00 DRILL P PROD1 MADPASS OUT OF HOLE -F/10,430'MD TO 10,110'MD -250 GPM,1400 PSI -40 RPM,5K TQ 20:00 - 21:00 1.00 DRILL P PROD1 CIRCULATE BOTTOMS UP -ROTATE AND RECIPROCATE F/10,150'MD TO 10,050'MD -250 GPM,1360 PSI -60 UNITS MAX GAS SEEN ON BOTTOMS UP Printed 10/14/2013 11:30:02AM 4111)- North America-ALASKA-BP Page 26 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3.012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release: 10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date IFrom-To Hrs Task Code NPT NPT Depth Phase Description of Operations I (hr) (usft) 21:00 - 22:00 1.00 DRILL P PROD1 I MONITOR WELL 10 MIN CUT!SLIP DRILLING LINE -RECALIBRATE BLOCK HEIGHT • -MONITOR WELL ACROSS TRIP TANK 22:00 - 22:30 0.50 DRILL P I PROM SERIVCEANDINSPECTTDSANDBLOCKS 22:30 - 23:30 1.00 f DRILL P 1PROD1 RIH F/10,150'MD TO 11,024'MD '-TAKE SURVEY @ 10,811'MD TO INSURE IN NEW HOLE,GOOD SURVEY. 23:30 - 00:00 0.50 DRILL P PROD1 CIRCULATE BOTTOMS UP -ROTATE AND RECIPROCATE F/11,024'MD TO 10,928'MD -250 GPM,1420 PSI • 1 I -40 RPM,5K TQ PU=190K,SO=152K,ROT=171K -SPR @ 11,024'MD/8948'TVD W/9.0 PPG I j MUD WT -#1 MP 20/30 SPM=500/620 PSI I -#2 MP 20/30 SPM=460/600 PSI -TOTAL MUD LOSS FOR 24HRS=23 BBL 9/6/2013 00:00 - 01:00 1.00 DRILL P PROD1 CIRCULATE BOTTOMS UP -ROTATE AND RECIPROCATE F/11,024'MD TO 10,964'MD -250 GPM,1430 PSI -MONITOR WELL 10 MIN :01:00 - 03:00 2.00 DRILL • P PROD1 PUMP OUT OF HOLE -F/11,024'MD TO 10,236'MD I I-250 GPM,1500 PSI 03:00 - 03:30 0.50 DRILL PPROD1 MONITOR WELL PRIOR TO TRIP 03:30 - 04:00 0.50 DRILL P PROD1 PULL 5 STANDS TO CHECK DISP F/10,236'MD TO 9771'MD 04:00 - 04:30 0.50 DRILL P . ' PROD1 MONITOR WELL '-PUMP DRY JOB 04:30 - 09:00 4.50 DRILL P PROD1 CONT POOH F/9771'TO 187"MD __ 'MONITOR WELL ON TRIP TANK 09:00 - 10:30 1.50 I DRILL P ! PROD1 MONITOR WELL -LAY DOWN BHA I -BIT#3 GRADE.=1-2-WT-A-E-1-BT-BHA 10:30 - 11:30 1.00 DRILL P PROD1 CLEAR FLOOR AND PREPARE TO PU ROTARY STEERABLE BHA • 11:30 - 14:30 3.00 DRILL P I PROD1 PU ROTARY STEERABLE BHA#6,BIT#4 14:30 - 15:00 0.50 DRILL P PROD1 PU 17 JTS 4"XT-39 DP -- 15:00 - 15:30 0.50 DRILL P PROD1 PERFORM SHALLOW HOLE MWD PULSE I TEST ' -250 GPM,1300 PSI 15:30 - 19:00 3.50 DRILL P PROD1 RIH PU DOUBLES OF 4"XT-39 DP TO 5,905' MD 19:00 - 22:00 3.00 DRILL P PROD1 RIH F/5905'TO 10825' -BREAK CIRC EVERY 10 STDS -OBTAIN PARAMETERS AND SPR AT 10,294' -NO PROBLEM GETTING INTO SIDE TRACK HOLE I-ENCOUNTER TIGHT HOLE @ 10,825 30K SO 22:00 - 23:00 1.00 • DRILL P PROD1 WASH DOWN F/10,825'TO 11,024'MD ' -250 GPM,1800 PSI -40 RPM,4K TQ ' -MUD CUT TO 7.8 PPG DURING CIRCULATION Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 27 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 1 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date j From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (u ) 23:00 - 00:00 1.00 DRILL P PROD1 i CIRCULATE BOTTOMS UP©11,024'MD -250 GPM,1800 PSI • -40 RPM,4 K TO 9/7/2013 00:00 - 01:00 1.00 DRILL P PROD1 CIRCULATE BOTTOMS UP -ROTATE AND RECIPROCATE F/10,955'TO 11,024' -235 GPM,1600 PSI -40 RPM, 6K TQ -OBTAIN SPR W/9.0 PPG MUD WT -#1 MP,20/30 SPM=380/580 PSI -#2 MP 20/30 SPM=380/600 PSI 01:00 - 07:30 6.50 DRILL P PROD1 DIR DRILL 6-1/8"PRODUCTION HOLE -F/11,024'MD/8,947'TVD TO 11,359'MD/ 8890'TVD -250 GPM,1915 PSI ON/1850 PSI OFF, '-WOB 16K, 130 RPM,7K TO -P/U=190K,S/O=152K,ROT=167K, -MONTIOR WELL -GAS BREAKING OUT SURFACE WITH NO PIT GAIN -MW 9.0 IN/9.1 OUT 07:30 - 09:30 2.00 DRILL P • PROD1 ROTATE AND RECIPROCATE F/11,359'MD TO ,11,327' -CIRCULATE OUT GAS CUT MUD '-MUD LOSS DURING CIRCULATION=15 BBLS -FILL GAS BUSTER WITH MUD 00:30 - 10:00 0.50 DRILL P PROD1 MONITOR WELL -OBSERVE MINOR GAS BREAKING OUT AT SURFACE -SHUT IN WELL WITH ANNULAR PREVENTER -OBSERVED NO PRESSURE INCREASE -PERFORM EXHALE TEST,NO FLOW NO PIT GAIN '-OPEN ANNULAR PREVENTER -HOLE TOOK4 BBL TO FILL - ------ ------- ------ 10:00 12:00 2.00 DRILL P PROD1 ROTATE AND RECIPROCATE F/11,359'MD TO 1 11,327' -CIRCULATE OUT GAS CUT MUD 12:00 - 20:00 8.00 DRILL P PROD1 DIR DRILL 6-1/8"PRODUCTION HOLE -F/11,359'MD/8890'ND TO 11,905'MD/8886' IND -250 GPM,1425 PSI ON/1400 PSI OFF, -WOB 16K, 130 RPM,7K TQ -P/U=190K,S/O=152K,ROT=167K, -MW 9.0 IN/9.1 OUT ,-CHECK SURFACE EQUIPMENT FOR PRESSURE LOSS. 20:00 - 22:00 2.00 DRILL N DFAL 11,907.31 PROD1 PUMP OUT OF HOLE WITH NO ROTATION DUE TO SUSPECTED WASHOUT IN DRILL STRING -F/11,905'MD-11,079'MD -168 GPM,780 PSI -ENCOUNTER TIGHT HOLE @ 11,079' 22:00 - 00:00 2.00 DRILL N DFAL 11,083.31 PROD1 WORK TIGHT HOLE F/11,081'MD TO 11,115' PU WT 180K,SO WT 149K,OVERPULL 50K, SO WT 40K -CIRC W/168 GPM WHILE WORKING PIPE Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 28 of 44 fi Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 9/8/2013 00:00 - 00:30 0.50 DRILL N DFAL 11,083.31 PROD1 WORK TIGHT HOLE @ 11,081' '-250 GPM,1150 PSI -PU WT 180K,SO WT 149K • -OVERPULL 30K UP AND 40K DOWN -PIPE CAME FREE @ 11,050' 00:30 - 02:00 1.50 DRILL N DFAL 10,293.31 PROD1 PUMP OUT OF HOLE F/11,050'TO 10,861' -249 GPM,1050PSI CONT PUMP OUT HOLE F/10,861'TO 10,291' • -140 GPM,660 PSI 02:00 - 06:30 4.50 DRILL N DFAL 513.31 PROD1 MONITOR WELL @ 10,291' -POOH WET LOOKING FOR WASHOUT F/ 10,291'TO 511" MONTIOR DISPLACEMENT ON TRIP TANK 06:30 - 10:00 3.50 DRILL N DFAL 2.31 PROD1 MONITOR WELL -CONT POOH F/511'TO SURFACE W/BHA LOOKING FOR WASHOUT -REMOVE NUCLEAR SOURCES LD MWD /PERISCOPE TOOLS AND WELL COMMANDER -MONITOR WELL ON TRIP TANK -NO VISIBLE WASHOUT CONFIRMED -BIT GRADE 0-1-WT-A-X-I-NO-DSF 10:00 - 12:00 2.00 DRILL N DFAL 2.31 PROD1 MONITOR WELL -PULL WEAR BUSHING,DRAIN STACK •-SET TEST PLUG - TEST ANUULAR BOP 250 PSI LOW 5 MIN/ 3500 PSI HIGH AND CHART 5MIN PER AOGCC REQUIREMENTS AFETR SHUTTING IN WELL. -RIG DOWN EQUIPMENT AND SET WEAR BUSHING -BLOW DOWN CHOKE AND KILL LINES 12:00 - 12:30 0.50 DRILL N DFAL PROD1 SERVICE ANDINSPECTTDS 12:30 - 17:00 4.50 DRILL N DFAL 513.31 PROD1 PJSM ON BHA HANDLING -MU BIT#4 RR AND BHA#7 -PU/MU NEW POWERDRIVE AND TEST W/ 230 GPM,800 PSI -LOAD NUCLEAR SOURCES -PUMP THROUGH BHA AND FOUND JARS LEAKING THROUGH RELIEF PORTS CONFIRMING PRESSURE LOSS 17:00 - 18:00 1.00 DRILL N DFAL PROD1 CHANGE OUT JARS AND WELL COMMANDER 18:00 - 23:30 5.50 DRILL N DFAL PROD1 RIH F/812'TO 10,300'MD -MONITOR WELL ON TRIP TANK 23:30 - 00:00 0.50 DRILL N DFAL PROD1 PJSM -MONITOR WELL -HANG BLOCKS FOR CUT/SLIP DRILLING LINE 9/9/2013 00:00 - 01:00 1.00 DRILL N DFAL PROD1 CUT/SLIP DRILLING LINE -RECALIBRATE BLOCK HEIGHT 01:00 - 02:30 1.50 DRILL N DFAL 10,300.00 PROD1 CIRCULATE BOTTOMS UP AT 11,300'TO OBTAIN ECD BASELINE '-250 GPM,1770 PSI 02:30 - 04:00 1.50 DRILL N DFAL 11,256.00 PROD1 RIH ON ELEVATORS 11,300'TO 11,298' -ENOCUNTERED TIGHT HOLE @ 11,060'TO 11,090',WORK THROUGH W/30K DOWN WT -TIGHT HOLE @ 11,240'WORK THROUGH W/ 15/20K DOWN WT 04:00 - 05:30 1.50 DRILL N DFAL 11,700.00 PROD1 WASH DOWN F/11,298'TO 11,700' -250 GPM,1900 PSI -40 RPM,7K TQ Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 29 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM I Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) - (usft) 05:30 - 08:00 2.50 DRILL N DFAL I 11,905.00 PROD1 WASH/REAM IN THE HOLE F/11,700'TO 11,905' -LWD LOG THIS INTERVAL -260 GPM,2000 PSI -100RPM,7KTQ I -SPR @ 11,905'MD/8887'TVD W/9.1 PPG MUD WT -#1 MP 20/30 SPM=420/620 PSI -#2 MP 20/30 SPM=460/620 PSI 08:00 - 08:30 0.50 DRILL P PROD1 DIR DRILL6-1/8"PRODUCTION HOLE -F/11,905'MD/8886'TVD TO 11,925'MD 8887 TVD -260 GPM, 2090 PSI ON/2000 PSI OFF, -WOB 15K, 130 RPM,7/8K TO -P/U=193K,S/O=149K,ROT=166K, -ADT=.28 HRS,JARS=.28 HRS -MW9.OIN/9.1OUT -TROUBLE SHOOT PROBLEM WITH SLB POWER DRIVE,NO REAL TIME COMMUNICATION WITH SLB POWER DRIVE 08:30 - 10:00 1.50 DRILL N DFAL 11,925.00 PROD1 CIRCULATE BOTTOMS UP -ROTATE AND RECIPROCATE F/11,900'TO 11,925'MD -- I -260 GPM.2090 PSI, -130 RPM, 6K TQ -MONTIOR WELL 10:00 - 11:30 1.50 DRILL N DFAL 11,050.00 PROD1 PUMP OUT OF HOLE F/11,925'TO 11,050' -250 GPM,1850 PSI -ENCOUNTER TIGHT HOLE 11,080'TO 11,060', WIPE 2X 11:30 - 14:30 3.00 DRILL P PROD1 MAD PASS LOG SECTION F/11,080'TO 10,360' -250 GPM,1800 PSI -100 RPM,6/7K TQ 14:30 - 16:00 1.50 DRILL N DFAL 10,300.00 PROD1 PULL INSIDE SHOE @ 10,300 AND CIRCULATE BOTTOMS UP -PERFORM DYNAMIC LOSS RATE 11-MONITOR WELL ' PUMP DRY JOB 16:00 - 21:30 5.50 DRILL N DFAL 600.00 PROD1 I POOH F/10,300'TO 600' -DUE TO NO COMMUNICATION WITH SLB POWER DRIVE 21:30 - 00:00 2.50 DRILL N DFAL 1 PROD1 MONITOR WELL WORK BHA -PJSM,UNLOAD NUCLEAR SOURCE, -LAY DOWN BHA AND BIT -BIT GRADE= 0-1-WT-A-X-I-NO-DTF 9/10/2013 00:00 - 01:30 1.50 DRILL N DFAL ' PROD1 'CLEAN AND CLEAR RIG FLOOR -DRAIN/FLUSH STACK -PULL WEAR BUSHING AND SET TEST PLUG -RIG UP TEST EQUIPMENT Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 30 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 ,X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM j Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 01:30 - 05:30 4.00 DRILL P PROD1 PRESSURE TEST BOPE -TEST BOPE TO 250 PSI LOW,3,500 PSI HIGH FOR 5 MINUTES EACH -WITH EXCEPTION OF SUPER AND MANUAL CHOKES TO 250 PSI LOW/2000 PSI HIGH '-TEST WITH 4"&5"TEST JOINTS -ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHARTS -PERFORM SUCCESSFUL ACCUMULATOR DRAWDOWN TEST -MONTIOR IA DURING TEST WITH TRIP TANK, OBSERVE 1 BBL/HR LOSSES -BOP TEST WITNESS WAIVED BYAOGCC REP LOUIS GRIMALDI 05:30 06:30 1.00 DRILL P i I PROD1 'RIG DOWN TEST EQUIPMENT -PULL TEST PLUG AND SET WEAR BUSHING 06:30 - 10:00 3.50 DRILL N DFAL 511.00 PROD1 PJSM -PU/MU BHA#8,BIT#4RR -SURFACE TEST POWER DRIVE @ 230 GPM, 785 PSI -INSTALL NUCLEAR SOURCE -CONTINUE RIH W/BHA#8 10:00 - 15:30 5.50 DRILL - N DFAL 10,300.00 PROD1 RIH W/BHA#8 F1511'TO 10300'MD -SHALLOW TEST @ 985' -FILL PIPE EVERY 20 STDS 15:30 - 16:00 0.50 DRILL N DFAL 10,300.00 PROD1 CIRCULATE AND OBTAIN ECD BASELINE_ 9.71 PPG 250 GPM,1740 PSI 16:00 - 18:00 2.00 DRILL N •DFAL 11,909.00 PROD1 RIH F/10,300'TO 11909' -TAKE CHECK SHOT SURVEYS(4),10,408', 10,508',10,558',10,658,11,268',11,298',11,456', 11,486' -250 GPM 1750 PSI 18.00 - 21:00 3.00 DRILL N DFAL 11,925.00 PROD1 CIRCULATE BOTTOMS UP F/11,909' -RELOG SECTION F/11,875'-11,905'MD -MAX GAS CUT SEEN 7.4 PPG ON NON PRESSURE SCALE -MUD WT 9.0 IN/9.1 OUT -WASH F/11,909'MD TO 11,925'MD 21:00 - 23:30 2.50 DRILL P PROD1 - _ DIR DRILL6-1/8"PRODUCTION HOLE -F/11,925'MD 8887 TVD TO 12,049'8881'TVD -250 GPM, 1925 PSI ON/1925 PSI OFF, -WOB 15K, 130 RPM,10K TQ -P/U=190K,S/O=143K,ROT=164K, -ADT=1.59 HRS,JARS=1.89 HRS -MW 9.0 IN/9.1 OUT 23:30 - 00:00 0.50 DRILL P 12,049.00 PROD1 ,STOP DRILLING OPERATIONS @ 12,049'MD/ 8881'TVD AS PER SLB PERISCOPE REP -CIRCULATE AND RECIPROCATE PIPE F/ 12,010'TO 12,045'MD -230 GPM,1750 PSI,50 RPM,6K TQ -CONTACT TOWN GEOLOGIST FOR DISCUSSION 9/11/2013 00:00 - 00:30 0.50 DRILL P 12,049.00 PROD1 STOP DRILLING OPERATIONS(d1 12,049'MD/ 8881'TVD AS PER SLB PERISCOPE REP -CIRCULATE AND RECIPROCATE PIPE F/ 12,010'TO 12,045'MD -230 GPM,1750 PSI,50 RPM,6K TQ -CONTACT TOWN GEOLOGIST FOR DISCUSSION -RECIEVE OK TO PROCEED DRILLING Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 31 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth , Phase Description of Operations (hr) (usft) 00:30 - 12:00 , 11.50 DRILL P PROD1 DIR DRILL 6-1/8"PRODUCTION HOLE -F/12,049'/8881'ND TO 12,952'MD/8875' ND -250 GPM, 1950 PSI ON/1910 PSI OFF, -WOB 15K, 130 RPM,10K TQ ' -P/U=188K,S/O=145K,ROT=164K, -ART=6.45 HRS,TOTAL BIT HRS=8.04, JARS=8.32 HRS -MW9.0IN/9.1 -CONTINUE FINGERPRINT WELL ON CONNECTIONS FOR 7 MINUTES -FORMATION FRACTURE ENCOUNTERED @ 12,734'MD -MUD LOSS FOR TOUR=273 BBLS 12:00 - 16:00 4.00 DRILL P PROD1 DIR DRILL 6-1/8"PRODUCTION HOLE -F/ 12,952'MD/8875'TVD TO 13,245'MD/ 8874'ND -250 GPM, 1940 PSI ON/1830 PSI OFF, -WOB 10K, 130 RPM, I- 10K TQ ON BTM,6K TQ OFF BTM -P/U=190K,S/O=142K,ROT=165K, -MW9.0IN/9.1 -EXPERIENCED INTERMITTENT LOSSES OF 25-90 BPH WHILE DRILLING AHEAD FROM FRACTURES THAT HEALED UPAS DRILL CUTTINGS PACKED THEM OFF. 16 00 - 16:30 0-50 DRILL P 13,245.00 PROD1 STOP DRILLING OPERATIONS DUE TO GEOLOGICAL UNCERTAINTY -CIRCULATE AND RECIPROCATE PIPE F/ 13,245'TO 13,230'MD -250 GPM,1830 PSI -RECEIVE OK TO PROCEED DRILLING 1630 - 18:00 1.50 DRILL P PROD1 DIR DRILL 6-1/8"PRODUCTION HOLE -F/13,245'MD/8874'TVD TO 13,297'MD/ 8873'ND -250 GPM, 1940 PSI ON/1910 PSI OFF, -WOB 10K, 130 RPM, - 10K TO ON BTM,6K TQ OFF BTM -P/U=190K,S/O=142K,ROT=165K, -MW9.OIN/9.1 -WELL BEGAN TAKING FLUID @ 13,297' -MADE LEVEL"0"NOTIFICATIONS DUE TO FLUID LOSSES>100-BPH. 18:00 - 21:00 3.00 DRILL N DPRB 13,297.00 PROD1 PUMP 25 BBL 40#/BBL LCM PILL AND SPOT ON BOTTOM @ 13,297'MD BEGIN CUT MUD WT BACK F/9.0 PPG TO 8.8 PPG SET BACK ONE STAND TO 13,210'MD AND ALLOW PILL TO SOAK FOR 30 MIN -MONITOR WELL,4 BBL LOSS IN STATIC ANNULUS DURING SOAK -CIRCULATE AND OBTAIN DYNAMIC LOSS RATE W/250 GPM,1770 PSI -INITIAL LOSS RATE 100 BBUHR DECREASING TO 50 BBUHR DURING END OF CIRCULATION. -492 UNITS OF GAS ON BOTTOMS UP WITH MUD CUT TO 7.OPPG ON NON-PRESSUERIZED MUD SCALE. Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 32 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:OOAM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UW: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 21:00 - 23:30 2.50 DRILL P PROD1 CONTROL DIR DRILL 6-1/8"PRODUCTION HOLE -F/13,297'MD/8873'TVD TO 13,426'MD/ 8878' TVD -250 GPM, 1760 PSI ON/1790 PSI OFF, -WOB 11K, 130 RPM, - 10K TQ ON BTM,6KTQ OFF BTM -P/U=190K,S/O=142K,ROT=165K, -ART=5.22,TOTAL BIT=12.6 HRS, JAR =12.9 HRS -MW 8.8IN/8.85 -DYNAMIC LOSS RATE 50 BBL/HR -PUMP 25 BBL 40#/BBL LCM MAINTENANCE SWEEP WHILE DRILLING,LOSSES REDUCED TO 20 BBL/HR AFTER SWEEP EXITED BIT. 23:30 - 00:00 0.50 DRILL P PROD1 CIRCULATE AND RECIPROCATE PIPE F! 13,426'TO 13,333'TO OBTAIN BOTTOMS UP W/8.8PPG MUD PRIOR TO CONNECTION. -250 GPM,1760 PSI -130 RPM,6KTQ -MAX GAS SEEN ON BOTTOMS UP 66 UNITS W/8.7PPG MUD CUT -SPR @ 13,426'W/8.8 PPG MUD WT -#1 MP 20/30 SPM=400/620 PSI #2 MP 20/30 SPM=420/640 PSI -LOSS RATE DURING CIRCULATION 20 BBL/HR TOTAL MUD LOSS FOR TOUR 510 BBLS 9/12/2013 00:00 - 04:30 4.50 DRILL P PROD1 CONTROL DIR DRILL6-1/8"PRODUCTION HOLE -F! 13,426'MD/8878' TVD TO 13,805'MD/ 8884'TVD -250 GPM, 1900 PSI ON/1880 PSI OFF, -WOB 15K, 130 RPM, - 13K TQ ON BTM,6KTQ OFF BTM -P/U=193K,S/O=143K,ROT=166K, -MW8.8IN/8.85 -DYNAMIC LOSS RATE 20/60 BBL/HR -POSSIBLE FAULT CROSSING @+/-13,750' MD,LOSS RATE TEMPORARLIY INCREASED TO 100 BBL HR AND REUTRNED TO 60 BBL HR 04:30 - 05:00 0.50 DRILL P 13,805.00 PROD1 STOP DRILLING OPERATIONS DUE TO GEOLOGICAL UNCERTAINTY -CIRCULATE AND RECIPROCATE PIPE F/ 13,800'TO 13,730'MD -250 GPM,1880 PSI RECIEVE OK TO PROCEED DRILLING 05:00 - 05:30 0.50 DRILL P PROD1 CONTROL DIR DRILL 6-1/8"PRODUCTION HOLE -F/13,805 MD/8884'TVD TO 13.844'MD/ 8884'TVD -250 GPM, 1900 PSI ON/1880 PSI OFF, -WOB 15K, 130 RPM, - 13K TQ ON BTM,6KTQ OFF BTM -ART=3.48,TOTAL BIT=16.08 HRS,JARS =16.36 HRS -ENCOUNTER FAULT©13,844'AND LOSS RETURNS. Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 33 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 I End Date:9/21/2013 IX3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UW: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code ! NPT NPT Depth j Phase Description of Operations (hr) (usft) _ 05:30 - 06:00 0.50 DRILL N DPRB 13,844.00 PROD1 RECIPROCATE PIPE F/13,840'MD TO 13,800' MD WHILE ATTEMPT TO FILL HOLE AND DETERMINE LOSS RATE INITAL DYNAMIC LOSS RATE IN EXCESS OF 360 BBUHR PUMP 25 BBL 40#BBL LCM PILL INTO PIPE 06:00 - 06:30 0.50 DRILL N DPRB 13,800.00 PROD1 RECIPROCATE PIPE F/13,840'MD TO 13,800' MD -FILL HOLE WITH TRIP TANK TO ESTABLISH STATIC LOSS RATE=240 BBUHR 06:30 - 07:30 1.00 DRILL N DPRB 13,660.00 PROD1 SPOT 25 BBL 40#BBL LCM PILL ON BOTTOM -POOH TO 13,800'MD 13,660'MD TO ALLOW LCM PILL TO SOAK -PUWT=210K,SOWT=140K 07:30 - 12:00 4.50 DRILL N DPRB 13,660.00 PROD1 RECIPROCATE PIPE F/13,660 MD TO 13,707' MD -PUMP 40 BBL 40#BBL LCM PILL©07:40 -PUMP 50 BBL 40#BBL LCM PILL @ 09:00 -STATIC LOSS RATE @ 09:30=200 BBL/HR -STATIC LOSS RATE @ 10:00=180 BBUHR -STATIC LOSS RATE @ 10:30=135 BBUHR -STATIC LOSS RATE @ 12:00=110 BBUHR -DYNAMIC LOSS RATE @ 12:00 W/250 GPM, 1535 PSI,80 RPM=360 BBUHR 12:00 - 16:00 4.00 DRILL N DPRB PROD1 RECIPROCATE PIPE F/13,759'MD TO 13,707' MD -PUMP 40 BBL 40#BBL LCM PILL @ 13:30 -PUMP 40 BBL 40#BBL LCM PILL©14:30 -DYNAMIC LOSS RATE=120 BBUHR 16:00 - 17:30 1.50 DRILL N DPRB 12,830.00 PROD1 PUMP OUT OF HOLE F/13,759'MD TO 12,830' MD -NO TIGHT SPOTS OR PROBLEMS -LOSSES DURING PUMP OUT=120 BBUHR 17:30 - 19:00 I 1.50 DRILL N DPRB 12,830.00 PROD1 CIRCULATE AND RECIPROCATE PIPE -DROP 1.75"WELL COMMANDER ACTIVATION BALL,AND PUMP DOWN -ON SEAT @ 762 STKS,SHIFT OPEN W/1600 PSI -DROP 1.698"ISOLATION BALL AND PUMP DOWN -VERIFY ISOLATION W/MWD BY ZERO TURBINE SPEED OR PULSE DETECTION W/ 250 GPM,530 PSI -LOSS RATE=70 BBUHR 19:00 - 20:00 1.00 DRILL N DPRB 12,830.00 PROD1 PUMP 43 BBL OF 80#BBL LCM PILL -250 GPM,510 PSI -SLOW PUMP FOR PILL TO EXIT WELL .COMMANDER -84 GPM,325 PSI -SLOW PUMP TO 20 GPM AND SLOWLY RECIPROCATE PIPE -LOSS RATE 25 BBL/HR -CONFIR W/ODE AND DRLG SUPT 20:00 - 21:00 1.00 DRILL N DPRB 12,830.00 PROD1 PUMP 52 BBL OF 80#BBL LCM PILL -190 GPM,425 PSI I-SLOW PUMP FOR PILL TO EXIT WELL !COMMANDER -84 GPM,325 PSI -SLOW PUMP TO 20 GPM AND SLOWLY RECIPROCATE PIPE Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 34 of 44 Operation Summary Report Common Wet Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) I Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) i Project:Prudhoe Bay ! Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code ! NPT NPT Depth Phase Description of Operations (hr) (usft) 21:00 - 22:30 1.50 DRILL N DPRB 12,830.00 PROD1 PUMP 20 GPM AND SLOWLY RECIPROCATE PIPE -OBTAIN STATIC LOSS RATE OF 32 BBUHR 22:30 - 00:00 1.50 DRILL N DPRB 12,830.00 PROD1 'CIRCULATE AND RECIPROCATE PIPE -DROP 1.75"ACTIVATION BALL TO CLOSE WELL COMMANDER - 84 GPM,215 PSI -SEAT W/1500 PSI AND SHIFT CLOSED AT 2025 PSI -VERIFY W/TURBINE SPEED AND PULSE DECTECTION -INITIAL LOSS RATE 160 BBL/HR,SLOWING QUICKLY TO 70 BBUHR -24 HR LOSSES=2168 BBLS 9/13/2013 00:00 - 01:00 1.00 DRILL N DPRB 12,803.00 PROD1 TROUBLE SHOOT MWD SIGNAL, -REMOVE STANDPIPE TRANSDUCER,CLEAN AND INSPECT,REINSTALL -MONTIOR HOLE,STATIC 01:00 - 02:30 1.50 DRILL P rPROD1 PUMP IN HOLE F/12,856'MD TO 13,790'MD -24 GPM,100 PSI -TAG FILL @ 13,790'MD LOSS RATE 70 BBUHR 02:30 - 03:00 0.50 DRILL N DPRB 13,844.00 PROD1 WASH F/13,790'MD TO 13,844'MD -250 GPM,1720 PSI, -40 RPM,7K TQ -LOSS RATE 70 BBL/HR 03:00 - 05:00 2.00 DRILL P PROD1 DRILL PRODUCTION HOLE F/13,844'MD/ 8884'TVD TO 13,965 MD/8884'TVD 250 GPM,1720 PSI •-130 RPM,10K TQ -PUMP 25 BBL40#BBL LCM MAINTENANCE SWEEP -LOSS RATE 48 BBL HR -LOST COMMUNICATION WITH SLB ROTARY STEERABLE TOOL -25 BBLS.OF 40#BBL SWEEP PUMPED WAS INCORRECT DESIGN. IT WAS MADE USING THE LCM INTENDED FOR THE 80#BBL AT A 40#BBL CONCENTRATION 05:00 - 06:00 1.00 DRILL N DPRB 13,965.00 PROD1 CIRCULATE AND ATTEMPT TO COMMUNICATE WITH SLB ROTARY STEERABLE TOOL. LOSS RATE=48 BBL/HR -REGAINED CONTROL OF TOOLFACE USING 60 SECOND DOWNLINK RATE. 06.00 - 12:00 6.00 DRILL P PROD1 DRILL6-1/8"PRODUCTION HOLE -F/13,965'MD/8884'TVD TO 14,265'MD/ 8875'TVD -250 GPM, 1850 PSI ON/1850 PSI OFF, -WOB 10K, 130 RPM, 11K TQ ON BTM,6K TQ OFF BTM -PUMPED 25 BBLS.OF 40#BBL.LCM PILL (INCORRECT RECIPE AS WAS IN PREVIOUS LCM PILL) -ENCOUNTED PUMP PRESSURE INCREASE I WHEN LCM PILL PASSED THROUGH BIT AND DOWNLINK COMMUNICATION WITH RSS WAS FURTHER COMPROMISED. Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 35 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,865000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date • From-To Hrs Task Code NPT NPT Depth ! Phase Description of Operations (hr) (usft) 12:00 - 19:30 7.50 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE -F/14,265 MD/8875'ND TO 14,847'MD/ • 8859'ND -260 GPM, 2040 PSI ON/2036 PSI OFF, -WOB 15K, 130 RPM, - 11K TQ ON BTM,6K TQ OFF BTM • -PUMP 40 BBL 40#LCM MAINTENACE PILL @ 14,660' -PUMP 40 BBL 40#LCM MAINTENACE PILL @ 14,755' -LOST RETURNS @ 14,829' 19.30 - 20:30 1.00 DRILL N DPRB 14,847.00 PROD1 MONITOR HOLE OBTAIN STATIC LOSS RATE OF 16 BBUHR PUMP 40 BBL 40#LCM PILL LOSS RATE _ SLOWED TO 162 BBL/HR DYNAMIC LOSS. . 20:30 - 21:30 1.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE -F/14,847'MD/8859'TVD TO 14,875'MD/ 8859'TVD -260 GPM, 2040 PSI ON/2036 PSI OFF, -WOB 15K, T30 RPM, - 11K TQ ON BTM,6K TQ OFF BTM -DYNAMIC LOSS WHILE DRILLING INCREASED TO 246 BBL/HR 21.30 - 22:00 0.50 DRILL- N DPRB 14,875.00 PROD1 MONITOR WELL -OBTAIN STATIC LOSS RATE=1 BBUHR 22:00 - 23:00 1.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE • F/14,875'MD/8859'TVD TO 14,944'MD/ 8859'ND -260 GPM, 2040 PSI ON/2036 PSI OFF, -WOB 15K, 130 RPM, - 11K TQ ON BTM,6K TQ OFF BTM ART=4.98,TOTAL BIT=26.39 HRS,JAR= 26.59 HRS -DYNAMIC LOSS RATE INCREASE TO 220 BBL/HR 23:00 - 00:00 1.00 DRILL N DPRB 14,944.00 PROD1 OBTAIN STATIC LOSS RATE=1 BBUHR -POOH F/14,944' TO 14,818' -PUMP 40 BBL 4011 BBL LCM PILL -SLOWLY RECIPROCATE PIPE WHILE •PUMPING -DYNAMIC LOSS RATE DROP TO 144 BBL/HR 9/14/2013 00:00 - 00:30 0.50 DRILL N DPRB 14,818.00 PROD1 MONITOR WELL -OBTAIN STATIC LOSS RATE=1 BBUHR SLOWLY RECIPROCATE PIPE 14,798'TO • • • 14,818' 00:30 - 02:00 , 1.50 ' DRILL i N DPRB 14,850.00 PROD1 PUMP 40 BBL 40#LCM PILL -SLOWLY RECIPROCATE PIPE F/14,820'TO 14,850' -DYNAMIC LOSS RATE=120 BBUHR 02:00 - 03:00 1.00 DRILL N DPRB 14,850.00 PROD1 MONTIOR WELL OBTAIN STATIC LOSS RATE=1 BBUHR 03:00 - 03:30 0.50 DRILL N DPRB 14,944.00 PROD1 WASH F/14,850'TO 14,944' -NO FILL, Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 36 of 44 ^ Operation Summary Report . Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM !Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:30 - 07:30 4.00 I DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE F/14,944'MD/8859 TVD TO 15,229 MD/ 8874'TVD -260 GPM, 2060 PSI ON/2020 PSI OFF, -WOB 10K, 130 RPM, - 11K TO ON BTM,6K TQ OFF BTM -PUMP 40 BBL 40#LCM MAINTENACE PILL© 14,947' -PUMP 40 BBL 40#LCM MAINTENACE PILL @ 15,039' -PUMP 40 BBL 40#LCM MAINTENACE PILL @ 15,120' -DYNAMIC LOSS=120 BBUHR 07:30 - 08:00 0.50 DRILL P PROD1 CIRCULATE AND RECIPROCATE PIPE F/ 15,134'TO 15,229' ! -259 GPM,2100 PSI -130 RPM,9 K TQ 08:00 - 11:30 3.50 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE -F/15,229'MD/8874 TVD TO 15,465'MD/ 8870'TVD -270 GPM, 2180 PSI ON/2180 PSI OFF, WOB 10K, 130 RPM, - 11K TQ ON BTM,6K TQ OFF BTM -ART=4.24,TOTAL BIT=30.53 HRS,JAR= 30.83 HRS ,-DYNAMIC LOSS=100 BBUHR INCREASING TO 357 BBL/HR 11:30 - 12:30 1.00 DRILL N DPRB 15,465.00 PROD1 LOST CIRCULATION DYNAMIC LOSS RATE=350 BBUHR -PUMP 35 BBL 40#BBL LCM PILL RECIPROCATE PIPE F/15,420'TO 15,432' 12:30 - 13:00 0.50 DRILL N DPRB 15,465.00 PROD1 RECIPROCATE PIPE F/15,420'TO 15,432' -KEEP HOLE FULL AND OBTAIN DYNAMIC LOSS RATE OF 84 BBUHR W/42 GPM 13:00 - 14:00 1.00 DRILL N DPRB 15,465.00 PROD1 PUMP 73 BBL OF 40#BBL LCM -OBTAIN STATIC LOSS RATE OF 60 BBUHR WHEN PILL EXITED BIT 14:00 - 18:30 4.50 DRILL N DPRB 15,465.00 PROD1 WAIT ON MUD TRUCKS -SET BACK ONE STAND DP TO 15,420'AND RECIPROCATE PIPE WHILE KEEPING HOLE FULL. -DYNAMIC LOSS RATE=100% -WASH ONE STAND DP TO BOTTOM @ 15,465'MD 18:30 - 19:00 0.50 i DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE -F/15,465'MD/8870'TVD TO 15,567'MD/ 8865'TVD -260 GPM, 1850 PSI ON/1714 PSI OFF, -WOB 10K, 130 RPM, 11K TQ ON BTM,8K TQ OFF BTM -ART=.72,TOTAL BIT=31.25 HRS,JAR=31.55 HRS -DYNAMIC LOSS RATE=357 BBUHR,100% OF PUMP RATE 19:00 - 19:30 0.50 DRILL N DPRB 15,567.00 PROD1 RECIPROCATE PIPE 15,567'TO 15,500' DYNAMIC LOSS=357 BBUHR,100%OF PUMP RATE -DECSION MADE TO POOH TO 12,700'MD AND OPEN WELL COMMANDER Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 37 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release: 10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 19:30 - 00:00 4.50 DRILL N DPRB 14,089.00 PROD1 POOH F/15,500'TO 15,005' -PUMPING 20 GPM DOWN STRING AND FILL ANNULUS WITH HOLE FILL PUMP -STATIC LOSS F/2 BBL/HR TO 24 BBL/HR -TIGH SPOT(42 15,005'MD -BEGIN PUMPING AND BACK REAM F/15,005' MD TO 14,089' 126 GPM,580 PSI 40 RPM,6/10K TQ -DYNAMIC LOSS=180 BBLS.100%OF PUMP RATE 9/15/2013 00:00 - 01:30 1.50 DRILL N DPRB 12,764.00 PROD1 •PUMP OUT OF HOLE F/14,089'TO 12,764'AT 20-GPM -DYNAMIC LOSS RATE=100%OF PUMP RATE 01:30 - 02:00 0.50 DRILL N DPRB 12,754.00 PROD1 MONITOR WELL 41-STATIC LOSS RATE=30 BBL/HR 02:00 - 03:30 1.50 DRILL N DPRB 12,754.00 -PROD1 CIRCULATE AND DROP ACTIVATION BALL, BALLON SEAT©760 STKS -DROP ISOLATION BALL,PUMP 35 BBLS CONFIRM NO TURBINE RPM OR PULSE DETECTION 03:30 - 05:00 1.50 DRILL N DPRB 12,754.00 PROD1 ;PUMP AND SPOT 40 BBL 80#/BBL LCM PILL INTO ANNULUS THROUGH WELL COMMANDER. -100%DYNAMIC LOSS WHILE SPOTTING PILL.NO RETURNS 05:00 - 06:30 1.50 DRILL-- N DPRB 12,400.00 PROD1 POOH F/12,754'TO 12,400'TO GET ABOVE SPOTTED LCM PILL -PULL VERY SLOWLY WHILE PUMPING 20 GPM TO PREVENT SWAB EFFECT. --------------- 06:30 - 08:00 1.50 DRILL N -DPRB 12,289.00 PROD1 ROTATE AND RECIPROCATE W/CIRCULATION WHILE STAGE PUMPS TP 250 GPM 550 PSI WITH 0 RETURNS, -REDUCE RATE TO 42 GPM AND PUMP ADDITIONAL 50 BBL -PUMPED TOTAL ANNULAR VOLUME OF 100 1 BLS TO DISPLACE 40 BBL 80#BBL LCM INTO LOSS ZONE 08:00 - 11:00 3.00 DRILL N DPRB 12,289.00 PROD1 PUMP 62 BBL 80#LCM PILL @ 148 GPM,500 PSI -CONTINUE TO ROTATE AND RECIPROCATE PIPE -GRADUAL INCREASE OF RETURNS, CONTINUE TO CIRCULATE A SURFACE TO SURAFCE CYCLE F/12,289'(83 250 GPM,780 PSI 11:00 - 12:00 1.00 DRILL N DPRB 12,289.00 PROD1 DROP 1.75 ACTIVATION BALL TO CLOSE WELL COMMANDER -BALL ON SEAT(42 600 STKS,SHIFT TO CLOSE W/2050 PSI -STAGE PUMPS TO 250 GPM,1990 PSI -CONFIRM TURBINE RPM AND PULSE SIGNAL -FLUID LOSS FOR TOUR=824 BBLS 12:00 - 15:00 3.00 DRILL N DPRB 14,764.00 PROD1 RIH F/12,384'TO 14,764' -CHECK DYNAMIC LOSS W/250 GPM,1600 PSI=60/70 BBL/HR LOSS RATE 15:00 - 15:30 0.50 DRILL N DPRB 14,764.00 PROD1 PUMP HIGH VIS/LOW VIS 35 BBL/35 BBL PILL AS PER SLB POWER DRIVE ANTI-JAMMING SOP -250 GPM,1870 PSI Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 38 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) • Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 15:30 - 17:00 1.50 DRILL N DPRB 15,567.00 PROD1 WASH F/14,764'TO 15,467' -261 GPM,1720 PSI -40 RPM,7K TQ -DYNAMIC LOSS=70/90 BBUHR 17:00 - 21:30 4.50 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE -F/15,567'MD/8865'TVD TO 15,823'MD/ 8852'TVD -260 GPM, 2020 PSI ON/1990 PSI OFF, -WOB 18K, 130 RPM, - 11K TQ ON BTM,8K TQ OFF BTM -PUMP 80 BBL 40#LCM MAINTENACE PILL @ 15.467' -PUMP 80 BBL 40#LCM MAINTENACE PILL @ 15,670' -DYNAMIC LOSS RATE=80/90 BBL HR 21:30 - 22:30 1.00 DRILL N DPRB 15,823.00 PROD1 UNABLE TO DROP ANGLE WITH SLB POWER 'DRIVE SHOWING 100%EXTENSION OF PADS I -ROTATE AND RECIPROCATE PIPE F/15820' TO 15,795' -PUMP HIGH VIS/LOW VIS 37 BBL/30 BBL PILL AS PER SLB POWER DRIVE ANTI-JAMMING SOP -DYNAMIC LOSS RATE 60/70 BBUHR 22:30 - 00:00 1.50 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE -F/15,823'MD/8852'TVD TO 15,866'MD, 8852'TVD -270 GPM, 2020 PSI ON/1990 PSI OFF, -WOB 18K, 150 RPM, 11K TQ ON BTM,8K TQ OFF BTM -PU WT=205K,SO WT=141K,ROT WT=162K -ADT=3.22,TOTAL BIT=34.2 HRS,JAR=34.5 -TOTAL FLUID LOSS FOR TOUR=668 BBLS _ 9/16/2013 00:00 - 02:30 2.50 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE -F/15,866'MD TO 15,894/8848'TVD' -270 GPM, 2020 PSI ON/1990 PSI OFF, -WOB 3/5K, 150/60 RPM, - 11K TQ ON BTM,8K TQ OFF BTM -PU WT=205K,SO WT=141K,ROT WT=162K -ADT=1.52,TOTAL BIT=35.72,JAR=36.02 02:30 - 04:00 1.50 DRILL N DPRB 15,894.00 PROD1 CIRCULATE BOTTOMS UP PRIOR TO POOH DUE LACK OF DIRECTIONAL CONTROLAND INABILITY TO DROP ANGLE -DYNAMIC LOSS=50/60 BBUHR -MONITOR HOLE 04:00 - 12:00 8.00 DRILL N DPRB 15,894.00 PROD1 BEGIN PUMP OUT OF HOLE F/15,894'MD TO •12,572'MD' 63 GPM,300 PSI -DYNAMIC LOSS=40/50 BBL/ -AS PER TOWN GEOLOGIST,MADD PASS ON TRIP OUT 15,265',14,870',14,775 -254 GPM,1820 PSI -DYNAMIC LOSS DURING MADD PASS=100 BBL/HR -TOTAL FLUID LOSS FOR TOUR=337 BBLS SPR @ 15,894'MD/8848'TVD W/8.6 PPG -#1 MP 20/30 SPM=580/760 PSI -#2 MP 20/30 SPM=680/900 PSI Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 39 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) ! Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay I Site:PB Y Pad Rig Name/No.:DOYON 25 I Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(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 DRILL N DPRB 15,894.00 PROD1 CONTINUE TO PUMP.00H F/12,572'TO 10,303' -63 GPM,300 PSI -NO TIGHT SPOTS ENCOUNTERED 15:30 - 17:30 2.00 DRILL N DPRB 15,894.00 PROD1 DROP AND PUMP WELL COMMANDER ACTIVATION BALL -84 GPM,395 PSI -BALL ON SEAT 375 STKS,SHIFT OPEN WITH 1775 PSI CIRCULATE BOTTOMS UP W/350 GPM,730 PSI 17:30 - 18:30 1.00 DRILL N DPRB PROD1 PJSM,CUT/SLIP DRLG LINE -RESETAMPHION AND RECALIBRATE BLOCK HEIGHT -STATIC LOSS=0 BBL/HR 18:30 - 20:00 1.50 DRILL N DPRB 15,894.00 PROD1 POOH F/10,303'TO 9340' -MONITOR DISP ON TRIP TANK -STATIC LOSS=0 BBL/HR -HOLE BEGAN TO SWAB AT 9340'MD 20:00 - 21:30 1.50 DRILL N DPRB 15,894.00 PROD1 DROP AND PUMP WELL COMMANDER ACTIVATION BALL TO CLOSE TOOL. -84 GPM,250 PSI, -BALL ON SEAT 329 STKS,SHIFT CLOSED© 1900 PSI CBU @ 250 GPM,1475 PSI DYNAMIC LOSS RATE=60 BBL/HR 21:30 - 23:30 2.00 DRILL N DPRB 15,894.00 PROD1 ATTEMPT TO POOH ON ELEVATORS,HOLE CONTIUE TO SWAB AND DRAG SEEN ON WT INDICATOR. BEGIN TO POOH WITH PUMP AND ROTATION F/9340'TO 8299' -250 GPM,1410 PSI -3K TQ -DYNAMIC LOSS=60 BBUHR 23:30 - 00:00 0.50 DRILL N DPRB 15,894.00 PROD1 CIRCULATE BOTTOMS FROM 8299'MD TO CLEAN OUT 7"CASING • I -RECIPROCATE PIPE -250 GPM,1400 PSI • - 40 RPM,3K TQ -DYNAMIC LOSS=60 BBUHR 9/17/2013 00:00 - 05:30 5.50 DRILL N DPRB 15,894.00 PROD1 POOH WITH PUMP AND ROTATION F/8299' TO 6,399" -250 GPM,1410 PSI, 1.5 K TQ -DYNAMIC LOSS=60 BBUHR -MONITOR HOLE& CHECK FOR SWABBING EVERY 5TH STAND 05:30 - 08:00 2.50 DRILL N DPRB 15,894.00 PROD1 PUMP OUT OF THE HOLE F/6,399'MD TO 5,069'MD -126 GPM,380 PSI, -MONITORING DISPLACEMENT VIA PITS 2-3-4 POOH ON ELEVATORS F/5069'TO 511'MD -HOLE QUIT SWABBING @ 4974'MD -MONITOR DISP W/TRIP TANK Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 40 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor.DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth I Phase Description of Operations (hr) (usft) _ 08:00 - 11:00 3.00 DRILL N DPRB 15,894.00 PROD1 MONITOR WELL PRIOR TO PULLING BHA- • WELL STATIC • -PJSM FOR LAYING DOWN BHA -LD BHAAS DIRECTED BY SLB DD -REMOVE SOURCE PER SLB MWD PROCEDURE -CONT LAYING DOWN BHA: -BIT GRADE:1-1-CT-C-X-I-NO-BHA -BIT WILL BE RE-RUN FOR REMAINDER 11:00 - 13:00 2 00 DRILL N DPRB 15,894.00 PROD1 CLEAN AND CLEAR RIG FLOOR -OBTAIN STATIC LOSS RATE-20 BPH -CLOSE BLINDS AND RIG UP HOLE FILL TO FILL BELOW BLINDS THROUGH THE KILL LINE -MONITORING HOLE FILL VIA PITS 2-3 15:00 2.00 DRILL N DPRB -MAINTENANCE ON PS21 AIR SLIPS 13:00 15,894.00 PROD1 REMOVE 6.125"PRODUCTION BHA#8 FROM SHED -MOBILIZE 6.125"PRODUCTION BHA#9 -C/O SAVER SUB ON TOP DRIVE,REPLACE SLB SENSOR ON STAND PIPE -UPLOAD MWD WHILE IN PIPE SHED. -STATIC LOSS RATE AT 6-10 BPH 15:00 - 18:00 3.00 DRILL N DPRB 15,894.00 PROD1 PJSM -PU/MU BHA#9,BIT#4RR -SURFACE TEST POWER DRIVE 200 GPM, 575 PSI -INSTALL NUCLEAR SOURCE CONTINUE RIH W/BHA#9 TO 511' 18:00 - 18:30 0.50 DRILL N DPRB 15,894.00 PROD1 RIH ON ELEVATORS F/511'TO 1000'MD -SHALLOW HOLE TEST MWD 220 GPM,901 PSI-GOOD TEST -MONITOR TRIP VIA PITS#2-3 18:30 - 00:00 5.50 DRILL N I DPRB 15,894.00 PROD1 CONT RIH ON ELEVATORS F/1000'MD TO 8,653' -STARTED PUSHING AWAY PIPE DISPLACEMENT WHEN BHA ENTERED THE 7" LINER-3700' 9/18/2013 00:00 - 01:30 1.50 DRILL N DPRB 15,894.00 PROD1 CONT TIH W/6-1/8"PRODUCTION BHA#9 ON 4"DP F/8,653'MD TO 10,589'MD -MONITORING DISPLACEMENT VIA TRIP TANK _ -MW IN/OUT-8.6 PPG 01:30 - 02:00 0.50 DRILL N DPRB PROD1 SERVICE AND INSPECT TOP DRIVE,BLOCKS AND CALIBRATE TOTCO BLOCK HEIGHT. 02:00 - 02:30 0.50 DRILL N DPRB 15,894.00 PROD1 RIH&TAKE MWD SURVEY AT 10,589'MD AND 10,769'MD CIRCULATE AT 230 GPM,1400 PSI -MWD SURVEY GOOD I-LOSING APPROX 45 BPH WHILE — CIRCULATING FOR SURVEY. 02:30 - 03:00 0.50 DRILL N DFAL 15,894.00 PROD1 I TROUBLE SHOOTING TOOL COMMUNICATION -POWER DRIVE AND THE PERISCOPE WILL NOT COMMUNICATE WITH SURFACE -SLB ATTEMPTED ALL POSSIBLE TROUBLE SHOOTING MEASURES. -WSL COMMUNICATED TOOL FAILURE WITH TOWN ODE DECISION WAS MADE TO POOH FOR FAILED TOOLS Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 41 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 1 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM I Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:00 - 04:00 1.00 DRILL N DFAL 15,894.00 PROD1 PUMP OUT OF THE HOLE FROM 10,769'MD TO 10,282'MD -62 SPM,338 PSI 04:00 - 11:00 7.00 DRILL N DFAL 15,894.00 PROD1 MONITOR WELL-WELL STATIC PUMP OUT OF THE HOLE FROM 10,282'MD TO 5,544'MD -3 BPM,PULLING 1 MIN PER STAND, CHECKING FOR SWABBING EVERY 5TH STAND -MONITORING DISPLACEMENT VIA PITS 2-3 11:00 - 16:00 5.00 DRILL N DFAL 15,894.00 PROD1 POOH ON ELEVATORS W/BHA#9 F/ 5,444' MD T/SURFACE -ATTEMPT TO ESTABLISH COMMUNICATIONS WITH PERISCOPE/POWERDRIVE AT 1,000' MD.NO COMMUNICATION -MONITOR WELL BEFORE PULLING BHA THROUGH BOPE,PJSM TO REMOVE RA SOURCE FROM ADN TOOL -L/D ADN,MICROSCOPE,IMPULSE AND PERISCOPE.SLB PROGRAMMING MICROSCOPE AND ADN IN PIPESHED. -STATIC LOSSES AT 6BPH -INSPECT BIT AND DECIDE TO RE-RUN 16:00 - 18:30 2.50 DRILL N f DFAL I 15,894.00 PROD1 M/U BHA#10 -MONITOR WELL BEFORE RIH WITH BHA THROUGH BOPE -P/U DD AND MWD TOOLS AND RIH T/120'. PJSM: -LOAD RA SOURCE,FOLLOWING SLB PROCEDURE -CONTINUE TO P/U BHA#10 AND RIH T/511' 18:30 - 19:30 1.00 DRILL N DFAL 15,894.00 PROD1 RIH T/1070'MD ON ELEVATORS -SHALLOW TEST AT 1070'MD WITH GOOD COMMUNICATION -TEST AT 200GPM,750PSI -MONITOR WELL VIA TRIP TANKS -WEEKLY BOPE FUNCTION TEST CLOSING TIMES:BAG-23 SEC,UPPER RAMS-18 SEC,LOWER-18 SEC,BLINDS-22 SEC,HCR KILL-2 SEC,HCR CHOKE-2SEC 19:30 - 00:00 4.50 DRILL N DFAL 15,894.00 PROD1 RIH ON ELEVATORS F/1070'MDT/8109'MD -FILL DP AND CHECK COMMUNICATION WITH POWERDRIVE AND PERISCOPE EVERY 20 STANDS -10-20 BPH LOSS RATE WHILE RIH _ -OA PRESSURE 95PSI 9/19/2013 00:00 - 03:30 3.50 DRILL N DFAL 15,894.00 PROD1 RIH ON ELEVATORS F/8109'MD T/11750'MD -FILL DP AND CHECK COMMUNICATION WITH POWERDRIVE AND PERISCOPE EVERY 20 STANDS -RE-TAKE SURVEYS AT MD:10,589',10,714', 11,080',11,617', -QUAD SURVEY AT 11,750'MD -SURVEYS TAKEN AT 220GPM -SERVICE AND INSPECT TOP DRIVE& BLOCKS,CALIBRATE TOTCO BLOCK HEIGHT AND SLB STANDPIPE SIGNAL PRESSURE TRANSDUCER 03:30 - 08:00 4.50 DRILL N DPRB PROD1 RIH ON ELEVATORS F/11750'MD T/15801'MD Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 42 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 08:00 - 08:30 0.50 DRILL N DPRB 15,894.00 PROD1 WASH AND REAM LAST STD F/15,801'MD T/ 15,894'MD -STAGING PUMPS TO 220GPM -DOWNLINK AND MADPAS F/15,880 T/15,894 -OBTAIN SPR'S @ 15,894'MD,MW=8.65PPG #1 PUMP-20/30 SPM=600/760 PSI #2 PUMP-20/30 SPM=620/800 PSI 08:30 - 12:00 3.50 DRILL P PROD1 CONTINUE TO DRILL 6-1/8"PRODUCTION HOLE F/15,894'MD T/16,084'MD -DRILLING PARAM AT 250GPM: -ON BOTTOM:1970PSI,130RPM,10K FT-LBS TORQUE,10K LBS WOB,ECD 9.54PPG -OFF BOTTOM:1945P51,P/U 195K LBS,S/O= 142K LBS,7K FT-LBS TORQUE,ROT 167K,7K TORQUE,ADT:1.32 -DRILLED INTO FAULT AT 15,940'MD AND ENCOUNTERED 300BPH LOSSES. -PUMPED 7OBBL OF 40LB/BBL AND 75 BBL OF 30LB/BBL LCM PILLS. -RETURNS INCREASED AND LOSS RATES DROPPED TO 110 BBL/HR 12:00 - 17:00 5.00 DRILL P PROD1 CONTINUE TO DRILL 6-1/8"PRODUCTION HOLE F/16084'MD T/16441'MD(TD) -DRILLING PARAM AT 249GPM: -ON BOTTOM:1930PSI,130RPM,10K FT-LBS TORQUE,15K LBS WOB,ECD 9.45PPG -OFF BOTTOM:1850PSI,P/U 195K LBS,S/O=- 142K 142K LBS,7K FT-LBS TORQUE,ROT 167K,7K TORQUE,ART/ADT:2.46HRS -FULLY LOST RETURNS MOMENTARILY AT FAULT:16,340'M D -REGAINED RETURNS WITH LOSS RATE AT 120BPH 17:00 - 18:30 1.50 DRILL P PROD1 CLEAN UP 6-1/8"PRODUCTION HOLE AT 16,441' -CBU W/LOSS RATES AT 100-120 BPH WHILE CIRCULATING -SHUT DOWN PUMPS AND MONITOR WELL WITH RETURNS DECREASING TO ZERO AFTER 15MIN -OBTAIN SPRS MW=8.6PPG,@ 16,441'MD, 18:30 #1 PUMP-20/30 SPM=680/780 PSI #2 PUMP-20/30 SPM=630/740 PSI 18:30 - 20:30 2.00 DRILL P PROD1 PUMP OUT OF HOLE F/16441'MD T/15706'MD -NO OVERPULL NOTED,NO ROTATION NEEDED -LOGGING AT 16140'-16125'MD; 15,977-15955;15894'-15870 MD -RATES WHILE LOGGING:150FPH AND 220GPM -CONTINUOUSLY MONITOR WELL VIA PITS#2 AND#3,LOSSES AT 130BPH 20:30 - 22:00 1.50 DRILL P PROD1 RIH ON ELEVATORS F/15706'T/16441' -NO PROBLEMS ON TRIP IN,NO TIGHT SPOTS -LOGGING AT 16049'-16069'AND 16215'- 16225'MD -RATES WHILE LOGGING:150FPH AND 220GPM -MONITOR WELL VIA TT AND HOLD PJSM FOR PUMPING LCM ON BOTTOM Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 43 of 44 Operation Summary Report Common Well Name Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay i Site:PB Y Pad 1 Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM 'Rig Release:10/3/2013 i Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To 1 Hrs Task Code 1 NPT NPT Depth Phase Description of Operations (hr) (usft) 22:00 - 00:00 2.00 DRILL P PROD1 CIRCULATE ON BOTTOM AND PUMP LCM -CIRC SURFACE TO SURFACE W/LCM PILLS -70BBL OF 3OLB/BBL LCM PILL AND 8OBBL OF 1 4OLB/BBL LCM PILLS j i -CIRCULATE AT DRILLING RATE:250GPM, 1895PSI,MW=8.6 -RECIPROCATE PIPE F/16431 MD T/16371' 1 'MD 9/20/2013 00:00 - 02:30 2.50 DRILL P , PROD1 CONTINUE TO CIRCULATE AND CONDITION HOLE AT 16,000'MD -ROTATE AND RECIP.F/16365'T/16434'MD @ 250GPM,1900PSI,130PRM -ADD LUBE TO DECREASE TORQUE F/12K T/ '10K -40 BBUHR LOSSES WHILE CIRCULATING -LOSS RATE @ 40-50 BPH 02.30 - 03:00 0.50 DRILL P PROD1 PUMP NEW 8.6PPG POWER PRO IN THE DRILL STRING IN PREPERATION TO PUMP OUT OF THE HOLE -OBTAIN SPRS AND MONITOR WELL-NORMAL FLOW BACK AFTER PUMPING OBSERVED WITH FLOW RATES DECREASING -P/U=197K,S/0=145K 03:00 - 14:30 11.50 DRILL I P fi 1 PROD1 PUMP OOH F/16441'T/10294'MD -DISPLACE HOLE WITH NEW 8.6 PPG MUD AT I '1-1.5BPM WHILE PULLING AT 1400 FT/HR -UP WT 195K,DWN WT 160K -SETTING DEPTH WITH MWD EACH STAND -MONITOR TRIPPING DISPLACEMENT VIA ACTIVE PITS -OA PRESSURE 110 PSI 14:30 - 15:00 0.50 DRILL P PROD1 OPEN WELL COMMANDER-DROP 1.75"OD STAINLESS BALL- -MONITOR WELL FOR 10 MIN-PUMP DOWN BALL AT 85 GPM,400 PSI-SEAT BALL AND PRESSURE UP T/1686 PSI-PRESSURE FELL ' I 1 OFF AND CONFIRM WC OPEN BY PUMPING I _ AT 85 GPM,260 PSI 15:00 - 16:00 1.00 DRILL P PROD1 ROTATE AND RECIPROCATE F/10,290'T/ 10,195'MD-420GPM,900 PSI,120 RPM,3-5K 1 FT-LBS TORQUE,P/U 180K,S/O 160K -NO INCREASE IN CUTTINGS AT BOTTOMS UP 16:00 - 17:30 1.50 DRILL PI PROD1 PJSM FOR CUT&SLIP OPERATIONS Pi � BLOW DOWN TOP DRIVE ' -CUT AND SLIP 88'DRILLING -CALIBRATE BLOCKS 17:30 - 23:30 6.00 DRILL P PROD1 PUMP OOH F/10195"T/5734"MD I -PUMP AT 85GPM,180PSI-UP Wt 116K,DWN WT 116K 23:30 - 00:00 0.50 DRILL P PROD1 POOH ON ELEVATORS F/5734'T/5450'MD j I -MONITOR WELL VIA TRIP TANK -MW IN/OUT-8.6 PPG_ 9/21/2013 00:00 01:00 1.00 DRILL P PROD1 POOH ON ELEVATORS F/5,450'MD TO—3780' MD(TOP OF 7"LINER TOP) 1 1 I J MONITOR HOLE FILL ON PIT#2 PUW-116 K,SOW-116 K Printed 10/14/2013 11:30:02AM North America-ALASKA-BP Page 44 of 44 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date:8/12/2013 End Date:9/21/2013 X3-012X7-C:DRILL(10,868,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: 1 Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 01:00 - 02:00 1.00 DRILL P PROD1 CIRCULATE BOTTOMS UP WITH WELL COMMANDER OPEN TO CLEAN TOP OF 7" LINER -3,780',260 GPM,200 PSI,20 RPM ROTATE AND RECIPROCATE PIPE -DROP 1.75"BALL AND CLOSE WELL COMMANDER CIRC SUB -VERIFY WELL COMMANDER CLOSING -MW-IN/OUT,8.6 PPG -NO INCREASE IN CUTTINGS AT BOTTOMS UP 02:00 - 07:00 5.00 DRILL P PROD1 CONT: POOH ON ELEVATORS F/3,780'MD TO 1511'MD j-MONITOR WELL PRIOR TO PULLING BHA THRU THE STACK PJSM FOR LAYING DOWN BHA: -LD BHA F/511'MD TO 125'MD 1-MONITOR DISPLACEMENT VIA THE TRIP TANK. 07:00 - 07:30 0.50 DRILL P PROD1 PJSM FOR FOR REMOVING THE SOURCE REMOVE AND AND LD SOURCE PER SLB PROCEDURE 07:30 - 08:00 0.50 DRILL P PROD1 L CLEAN AND CLEAR RIG FLOOR -REMOVE TOOLS FROM RIG FLOOR 4 ^SWITCH TO(CON)EVENT Printed 10/14/2013 11 30 02AM North America-ALASKA-BP Page 1 of 12 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/21/2013 End Date:10/3/2013 X3-012X7-C:DRILL(7,119,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 9/21/2013 08:00 - 10:30 2.50 CASING P RUNPRD MOBILIZE AND RIG UP HANDLING EQUIPMENT FOR RUNNING4-1/2"LINER -VERIFY CORRECT RUNNING ORDER OF SWELL PACKERS AND FRAC PORTS -MONITOR AND FILL THE HOLE VIA PIT#2 STATIC LOSS RATE 12 BPH. 10:30 - 13:00 2.50 CASING P RUNPRD PJSM FOR RUNNING LINER: -RUN 4.5"13.5#,13CR-80 HYD 521 PRODUCTION LINER -RIH W/LINER FLOAT EQUIPMENT T/133' -CHECK FLOATS-GOOD -TORQUE ALL CONNECTIONS TO 5K FT/LB -USE JET LUBE SEAL GUARD 13:00 - 00:00 11.00 CASING P RUNPRD -RUN 4.5"13.5#,13CR-80 HYD 521 PRODUCTION LINER RIH F/133'MD TO 6,183'MD MONITOR DISPLACEMENT VIA PITS 2&4 FILLING EVERY JOINT,TOP OFF EVERY 10TH JT -MUD LOSS WHILE RUNNING IN HOLE-105 BBLS -MW:8.6 PPG IN,8.6 PPG OUT -MU LINER HANGER/PACKER ASSEMBLY PUW-104,SOW-105K W/THE HANGER AND ONE SINGLE JNT OF DP PICKED UP 9/22/2013 00:00 - 01:30 1.50 CASING P RUNPRD FINISH MU LINER HANGER/PACKER ASSEMBLY -MU AND ADD PAL MIX PER BOT REP -CIRCULATE 1.5 X LINER VOLUME -126 GPM,320 PSI, -PUW-104 K SOW-105K -C/O SLIP INSERTS -90 BPH DYNAMIC LOSS RATE MW:8.6 PPG IN,8.6 PPG OUT 01:30 - 04:30 3.00 CASING P RUNPRD -RUN 4.5"13.5#,13CR-80 HYD 521 PRODUCTION LINER -RIH F/6,183'T/10,258'MD ON 4"DP STANDS FROM THE DERRICK -STRAPPING STANDS IN THE DERRICK -MONITOR DISPLACEMENT VIA PITS 2&4 -FILLING EVERY 10 STANDS. 04:30 - 06:30 2.00 CASING P RUNPRD CIRCULATE 1.5X STRING VOLUME -STAGE PUMPS AND OBTAIN PARAMETERS T/ 3.5BBL/MIN IN 0.5 BBUMIN INCREMENTS -OBTAIN ROTATING PARAMETERS:P/U 168, 'S/O 146K,ROT WT @ 10&20 RPM 157K,TQ 4K -DYNAMIC LOSSES WHEN PUMPING 1.5 BPM: 55BBUHR;PUMPING 3.5BPM:120 BBL/HR 06:30 - 12:00 5.50 CASING P RUNPRD CONTINUE TO RIH F/10258'T/16253'MD -MONITOR DISPLACEMENT VIA PIT#2 -FILL PIPE EVERY 10 STDS -ALTERNATE RUN SPEEDS TO TRY AND IMPROVE LOSS RATE WITH NO EFFECT -LOSING 18-20 BBUHR Printed 10/14/2013 11:28:23AM North America-ALASKA-BP Page 2 of 12 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/21/2013 End Date:10/3/2013 1X3-012X7-C:DRILL(7,119,000.00) II Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM ;Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWM: Active datum:Y-13A actual C 87.85usft(above Mean Sea Level) Date From-To Hrs Task j Code NPT NPT Depth Phase Description of Operations (hr) (usft) 12:00 - 12:30 0.50 CASING P RUNPRD WASH DOWN F/16253'T/16345'MD PUMPAT2BPM,560 PSI AND NO RETURNS -P/U 206K,S/O 132K -GAVE 24HR BOPE TEST NOTIFICATION TO AOGCC-AOGCC WAIVED WITNESS BY JEFF JONES 12:30 - 20:00 7.50 CASING P RUNPRD SET 4-1/2" 13.5"13CR-80 LINER SHOE AT 16353'MD,HANGER AT 10,173'MD -DROP 2EA 1.25"PHENOLIC BALLS AND CHASE W/15BBL HI-VIS PILL @ 3BPM.900PSI ICP,985PSI FCP -BALLS DID NOT SEAT,ATTEMPT TO SEAT BALLS WITH HIGHER RATE FAILED -SLACK OFF 50K TO SET HANGER PER BOT REP. -PRESSURE UP TO 4100PSI TO RELEASE RUNNING TOOL,UPON RELEASE HANGER SLID DOWN HOLE 5'MD -DROP 1.5"OD STEEL BALL T/RE-SET HANGER. -PUMP ON SEAT AT 2 BPM TO 700 PSI, ATTEMPT TO SET HANGER-UNSUCCESFULY -HANGER SLID DOWN ANOTHER 18'DURING HANGER SETTING ATTEMPT -PRESSURED UP TO 4000 PSI IN ATTEMPT TO ENGAGE HANGER SLIPS. -HANGER ENGAGED AT THIS TIME,SET AND RELEASE FROM PACKER AS PER BOT REP. CONFIRM PACKER SET WITH 15 RPM ROTATION. 20:00 - 21:00 1.00 CASING P RUNPRD TEST LINER TOP PACKER -250PSI LOW,3500PSI HIGH FOR 30 MIN EACH TEST(PASS) -NOTIFIED WTLAND OBTAINED AUTHORIZATION TO PROCEED WITH PLANNED OPERATIONS -ATTACHED PRESSURE CHART AND CALCULATOR IN OPEN WELLS 21:00 - 21:30 0.50 CASING P RUNPRD POOH F/10173'T/10111'MD -LD SINGLES,B/D KILL LIKE '-STATIC LOSS RATE PRIOR TO DISPLACEMENT-1 BPH 21:30 - 23:00 1.50 CASING P RUNPRD DISPLACE WELLT/ 8.6PPG SEAWATER -MONITOR WELL(STATIC) -DISPLACE AT 12 BPM,1880 PSI,592BBLS PUMPED -33 BBLS LOST DURING DISPLACEMENT -MONITOR WELL(STATIC) 23:00 - 00:00 1.00 CASING P RUNPRD POOH F/10111'T/10000'MD -UD 4"XT-39 DP SINGLES -CLEAN TROUGH AND UNDER SHAKERS 9/23/2013 00:00 - 18:00 18.00 CASING P RUNPRD POOH WITH THE LINER RUNNING TOOL -LD 4"XT-39 DP SINGLES -MONITOR WELL VIA TRIP TANK -LINER RUNNING TOOL SHOWED INDICATION OF BEING HYDRAULICALLY RELEASED NOT i MECHANICALLY Printed 10/14/2013 11:28.23AM North America-ALASKA-BP Page 3 of 12 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/21/2013 End Date:10/3/2013 X3-012X7-C:DRILL(7,119,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) _ Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 18:00 - 19:00 1.00 CASING P RUNPRD CLEAN AND CLEAR RIG FLOOR DRAIN/FLUSH STACK -PULL WEAR BUSHING AND INSTALL TEST PLUG -RIG UP TEST EQUIPMENT 19:00 - 23:00 4.00 BOPSUR P RUNPRD PRESSURE TEST BOPE -TEST BOPE TO 250 PSI LOW,3,500 PSI HIGH FOR 5 MINUTES EACH -WITH EXCEPTION OF SUPER AND MANUAL CHOKES TO 250 PSI LOW/2000 PSI HIGH -TEST WITH TH 4-1/2"TEST JOINT -ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHARTS -PERFORM SUCCESSFUL ACCUMULATOR DRAW DOWN TEST -MONITOR IA DURING TEST WITH TRIP TANK BOP TEST WITNESS WAIVED BYAOGCC REP JEFF JONES 23:00 - 23:30 0.50 BOPSUR P RUNPRD PULL TEST PLUG AND BLOW DOWN CHOKE AND KILL LINES 23:30 - 00:00 0.50 RUNCOM P RUNCMP MU LANDING JOINT TO 4.5" HANGER AND MAKE DUMMY RUN PER CAMERON REP DIRECTION 9/24/2013 00:00 - 03:30 3.50 -. RUNCOM P RUNCMP RU 4-1/2"HANDLING EQUIPMENT -MOBILIZE AND RU SLB CONTROL LINE SPOOLS, SHEAVES&CLAMPS -VERIFY COMPLETION ACCURACY,PIPE COUNT AND RUNNING ORDER 03:30 - 11:00 7.50 RUNCOM P RUNCMP PJSM FOR RUNNING 4.5"COMPLETION -RUN 4.5"12.6 LB/FT,13CR-85,VAMTOP COMPLETION j INDEXING WLEG,X-NIPPLE,HES TNT 'PACKER,X-NIPPLE,SAPPHIRE GAUGE,, GLM'S#1-4 FIV VALVE,X-NIPPLE • -TORQUE TURN VAMTOP CONNECTIONS TO 4,440 FT-LBS H BAKER LOCK ALL CONNECTIONS BELOW !THE PRODUCTION PACKER SLB REP INSTALLED I-WIRE TO SAPPHIRE GAUGE AND TESTED CONNECTIVITY -LOSS RATE AT ZERO BPH 11:00 - 12:00 1.00 RUNCOM P RUNCMP RUN 4.5"12.6 LB/FT,13CR-85,VAMTOP COMPLETION RIH TO 2,302'OR 49 JOINTS. -WITH JOINT #50 PU AND READY TO BE MADE UP THE ENTIRE COMPLETION STRING RELEASED FROM THE SLIPS AND WENT DOWN HOLE. 12:00 - 15:00 3.00 RUNCOM N SFAL RUNCMP OPERATIONS WERE STOPPED TO INVESTIGATE THE CAUSE OF THE DROPPED COMPLETION STRING -INITIAL INVESTIGATION INDICATES A FAILURE IN THE PS-21 AUTOMATED SLIPS: ;-INVESTIGATION REPORT TO FOLLOW. Printed 10/14/2013 11:28:23AM North America-ALASKA-BP Page 4 of 12 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/21/2013 End Date:10/3/2013 X3-012X7-C:DRILL(7,119,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Tme:7/29/1981 12:00:00AM I Rig Release:10/3/2013 Rig Contractor.DOYON DRILLING INC. UVI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 15:00 - 19:00 4.00 RUNCOM N SFAL RUNCMP CLEAR RIG FLOOR OF COMPLETION RUNNING EQUIPMENT -LOADING DP IN THE PIPE SHED,PREP FOR FISHING OPERATIONS -CLEAN AND REMOVE THE PS-21 SLIPS, INSTALL CONVENTIONAL MASTER BUSHINGS -MOBILIZE FISHING TOOLS TO RIG FLOOR, -INSTALL WEAR BUSHING-8.9375"I.D. 19:00 - 21:00 2.00 FISH N SFAL RUNCMP PU FISHING BHA AS DIRECTED BY BOT FISHING REP -SPEAR W/GRAPPLE,BUMPER SUB,OIL JAR • ,DC'S,ACCELERATOR -RIH TO 233' -MONITORING DISPLACEMENT VIA THE TRIP TANK 21:00 - 00:00 3.00 RUNCOM N SFAL RUNCMP RIH WITH BAKER FISHING BHA ON 4"XT-39 DP SINGLES FROM THE PIPE SHED TO 2,933' MD -MONITOR DISPLACEMENT VIA THE TRIP TANK -ZERO LOSSES WHILE RUNNING IN THE HOLE. 9/25/2013 00:00 - 05:30 5.50 FISH N SFAL RUNCMP RIH WITH BAKER FISHING BHA ON 4"XT-39 DP SINGLES FROM THE PIPE SHED F/ 2,933' MD T/7,859'MD -MONITOR DISPLACEMENT VIA THE TRIP TANK -ZERO LOSSES WHILE RUNNING IN THE HOLE. -PUVW-148K,SOW-140K SPR'S©7.859'MD,W/8.5 PPG SEAWATER ©05:35 -#1 MP-20/30=120/220 PSI -#2 MP-20/30=120/240 PSI 05:30 - 08:30 1.00 FISH N SFAL RUNCMP RIH F/7,859'MD TAGGING TOP OF TUBING STRING AT 7,880'MD -ENGAGE FISH AS DIRECTED BY BAKER FISHING REP -MADE SEVERAL ATTEMPTS TO ENGAGE FISH WITH 10-20 K DOWN WEIGHT. -BROUGHT PUMPS ON AND STAGED UP TO 5 BPM,WITH 700 PSI,CONTINUE TO WORK SPEAR DOWN WITH 10-20K DOWN WT. -FINALLY WORKED PAST OBSTRUCTION AND RIH TO NO GO AT 7,887'MD -ENGAGE FISH WITH A 10K SO,PICK UP TO VERIFY FISH CAPTURE WITH 180K PUW WITH BREAK OVER AT 210 K 0630 - 12 00 5.50 FISH N SFAL RUNCMP POOH ON ELEVATORS W/210 KPU WT, F/ 7,887'MD SPEAR DEPTH,(10,190'MD FISH DEPTH)TO 1,245'MD SPEAR DEPTH,(3,547 FISH DEPTH) -MONITOR DISPLACEMENT VIA THE TRIP TANK 12:00 - 14:00 2.00 FISH N SFAL RUNCMP CONT POOH ON ELEVATORS F/1,245'MD SPEAR DEPTH,(3,547'MD FISH DEPTH),TO SPEAR AT SURFACE AND 4-1/2"TUBING IN .THE ROTARY -BOTTOM OF 4-1/2"FISH AT 2,302'MD -MONITORING DISPLACEMENT AT THE TRIP TANK Printed 10/14/2013 11:28 23AM ® North America-ALASKA-BP Page 5 of 12 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/21/2013 End Date:10/3/2013 X3-012X7-C:DRILL(7,119,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM I Rig Release:10/3/2013 Rig Contractor DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 14:00 - 14:30 0.50 FISH N SFAL RUNCMP WITH 4-1/2"VT TUBING IN THE SLIPS,LAY DOWN BOT FISHING BHA AND SPEAR 14:30 - 15:30 1.00 FISH N SFAL RUNCMP RU 4-1/2"TUBING EQUIPMENT FOR LAYING DOWN 4-1/2"COMPLETION 15:30 - 20:00 4.50 FISH N SFAL RUNCMP L/D RETRIEVED TUBING STRING AND COMPLETION F/2,302'MD -RECOVERED 51 FULL CLAMPS ADN 4 HALF CLAMPS&98 PINS. -DID NOT RECOVER 8 CONTROL LINE CLAMP (PINS)TOTAL -DID NOT RECOVER 6 SLIP SEGMENTS FROM THE HES TNT PACKER -MONITOR THE WELL ON THE ACTIVE SYSTEM,WHILE CIRCULATING OVER THE TOP. -ZERO LOSSES. WSL'S AND ROTARY SUPT CONSULTED WITH WTL FOR PLAN FORWARD 20:00 - 20:30 0.50 FISH N SFAL RUNCMP CLEAN AND CLEAR THE RIG FLOOR OF TUBING EQUIPMENT I I I -PREP FLOOR FOR POLISHED MILL ASSEMBLY RUN. 20:30 - 00:00 3.50 FISH N SFAL RUNCMP MOBILIZE POLISHED MILL ASSEMBLY TO THE RIG FLOOR -MU POLISHED MILL ASSEMBLY#2 AS DIRECTED BY THE BOT REP TO 230' -RIH WITH MILL ASSEMBLY#2 ON DP FROM THE DERRICK. FROM 230'MD TO 6,025'MD -MONITOR DISPLACEMENT VIA THE TRIP TANK. 9/26/2013 00:00 - 05'00 5.00 CLEAN N SFAL RUNCMP TIH WITH POLISH MILL ASSEMBLY ON 4'XT39 DP SINGLES TO 10,169'MD -MONITORING DISPLACEMENT VIA THE TRIP TANK. -TAKE SLOW PUMP RATES AT 10,169'MD -PUW-185 K,SOW-161K,ROT 174K W/60 RPM RIH AND TAG UPON UPPER MILL @ 10,182' MD,9'PAST THE TOP OF LINER AT 10,173'MD -DRESS OFF TBR AND TOP OF PACKER -80 RPM,336 GPM,960-1010 PSI,5-7 TQ NO INDICATIONS OF ANY JUNK ON TOP OF THE LINER 05:00 - 05:30 0.50 CLEAN N SFAL RUNCMP CIRCULATE BOTTOMS UP PRIOR TO POOH LAYING DOWN DP -421 GPM,1450 PSI 05:30 - 06:00 0.50 CLEAN N SFAL RUNCMP POOH WITH POLISH MILL ASSY LAYING DOWN SINGLES FROM 10,182'TO 10,109' _ -MONITOR TRIP VIA THE TRIP TANK 06:00 - 07:30 1.50 CLEAN N SFAL RUNCMP PJSM FOR SLIPPING&CUTTING DRILL LINE -SLIP AND CUT 94'OF DRILL LINE -CALIBRATE AMPHION&TOTCO BLOCK HEIGHT&ALL HOOK LOADS 07:30 - 08:00 0.50 CLEAN N SFAL RUNCMP RIG SERVICE: SERVICE AND INSPECT TOP DRIVE AND BLOCKS 08:00 - 13:00 5.00 CLEAN N SFAL RUNCMP POOH ON ELEVATORS F/10,109'MD TO 320' -MONITOR DISPLACEMENT VIA THE TRIP TANK Printed 10/14/2013 11:28.23AM North America-ALASKA-BP Page 6 of 12 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/21/2013 I End Date:10/3/2013 X3-012X7-C:DRILL(7,119,000.00) Project Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. i UWI: Active datum:Y-13A actual©87.85usft(above Mean Sea Level) Date From-To I Hrs ! Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) i 13:00 - 13:30 0.50 CLEAN N SFAL I RUNCMP LD CLEAN OUT BHA#2 AS DIRECTED BY BOT I REP ' -CLEAN DEBRIS F/MAGNET RETRIEVED ONE OF THE CLAMP WEDGE _ 'PINS 13:30 - 14:00 0.50 CLEAN N SFAL RUNCMP PULL WEAR BUSHING -INSTALL TEST PLUG&FILL LINES -PREP TO TEST BOPE 14:00 - 16:30 2.50 BOPSUR N SFAL ' RUNCMP PRESSURE TEST BOPE -TEST BOPE TO 250 PSI LOW,3,500 PSI HIGH 1 FOR 5 MINUTES EACH -ANNULAR,UPPER AND LOWER VBR'S,4" TIW&DART I I -TEST WITH THE 4"TEST JOINT -ALL TESTS CHARTED,SEE ATTACHED BOP TEST CHARTS -FUNCTION TEST: CLOSING TIMES,ANNULAR-23 SEC, UPPER RAM-18 SEC,BLIND SHEAR-16 SEC, LOWER PIPE RAM-16 SEC 16:30 - 17:00 0.50 BOPSUR N SFAL RUNCMP RD TEST EQUIPMENT � PULL TEST PLUG -INSTALL WEAR RING W/9.125"ID 17.00 - 19:00 2.00 CLEAN N SFAL RUNCMP M/U CLEAN OUT RUN BHA AS PER BOT REP TO 270' 19:00 - 21:00 2.00 CLEAN N SFAL RUNCMP RIH ON ELEVATORS F/270'T/3,782' � -MONITOR DISPLACEMENT ON TRIP TANK __ -P/U WT-98K ,S/O WT-104 21:00 - 21:30 0.50 CLEAN N SFAL RUNCMP DROP 1"BALL FOR RCJB AND PUMP DOWN @ 84 GPM, 53 PSI,77%FLOW OUT -BALL ON SEAT @ 220 STKS I i -BRING PUMPS UP TO 378 GPM,2460 PSI, 27%FLOW OUT. -RIH AND TAG 7"LINER TOP ON DEPTH @ 3,782' i-PUW-98K,SOW-104 K 21:30 - 22:30 1.00 CLEAN N SFAL i RUNCMP PUMP HI-VIS SWEEP AND CIRC OUT SAME l -378 GPM,2472 PSI, -DID NOT SEE ANY INCREASE IN CUTTINGS ' OR DEBRIS AT BOTTOMS UP i -OBTAIN SPR'S 22:30 - 23:00 0.50 I CLEAN N SFAL RUNCMP MONITOR THE WELL PRIOR TO POOH-WELL STATIC -BD TOP DRIVE,PREP FLOOR FOR TRIP 23:00 - 00:00 1.00 CLEAN N SFAL RUNCMP POOH FROM 3,782'MD TO 269'MD -MONITOR DISPLACEMENT FROM PIT#2 -MONITOR THE WELL PRIOR TO PULLING NON SHEARABLES-WELL STATIC 9/27/2013 00:00 - 03:30 3.50 CLEAN i N SFAL RUNCMP FINISH LAYING DOWN CLEAN OUT BHA#3 -CLEAN OUT BOOT BASKETS- ZERO RETRIEVAL -LAY DOWN BHA TO BEAVER SLIDE PU AND MU CLEAN OUT BHA#4 TO 262' 1 I-RCJB,XO,BOOT BASKET(3),STRING MAGNETS x2,BUMPER SUB M OIL JAR,DC'S Printed 10/14/2013 11:28:23AM North America-ALASKA-BP Page 7 of 12 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/21/2013 End Date:10/3/2013 'X3-012X7-C:DRILL(7,119,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 03:30 - 09:30 6.00 CLEAN N SFAL RUNCMP RIH WITH CLEAN OUT BHA#4 ON 4"DP FROM THE DERRICK F/262'MD TO 3,782' (TOP OF 7"LINER) TAG TOP OF LINER AT 3,782'SET DOWN 10 K UNABLE TO WORK PAST -ROTATE PIPE TROUGH AT 20 RPM,x 2,TO 3,812'MD -PUW-97K,SOW-105K,ROT-104K,1K TOQ -MONITOR DISPLACEMENT VIA THE TRIP TANK -CONTINUE TIH F/3,812'TO 10,136'MD -MONITOR DISPLACEMENT VIA THE TRIP TANK. 09:30 - 11:30 2.00 CLEAN N SFAL RUNCMP STAGE PUMPS UP TO 463 GPM,2450 PSI -DROP.875"OD BALL FOR THE REVERSE CIRCULATING JET BASKET -WASH DOWN F/10,136'MD TO 10,170'MD -440 GPM,3000 PSI -PUMP 34 BBL HIGH VIS SWEEP W/171 GPM, 600 PSI, -SLACK OFF AND TAG TOP OF LINER AT 10,173'MD GET SLOW PUMP RATES: 11:30 - 15:30 4.00 CLEAN N SFAL RUNCMP MONITOR WELL PRIOR TO PULLING OUT OF THE HOLE-WELL STATIC -POOH ON ELEVATORS F/10,173'MD TO 320' MD -MONITOR WELL PRIOR TO PULLING BHA THRU THE STACK-WELL STATIC -MONITOR THE DISPLACEMENT VIA THE TRIP TANK 15:30 - 17:00 1.50 CLEAN N SFAL RUNCMP LD CLEAN OUT BHA#4 AS DIRECTED BY BOT REP 17:00 - 17:30 0.50 FISH N SFAL RUNCMP CLEAN AND CLEAR THE RIG FLOOR -CLEAN UP MAGNETS -CLEAN OUT RCJB-REMOVED A FLAT STAINLESS STEEL BAND ABOUT 6"IN DIAMETER AND 2"THICK 17:30 - 23:30 6.00 FISH N SFAL RUNCMP STAGE SLB WIRELINE UNIT -PJSM WITH CREW AND SLB WIRELINE CREW -PU TOOLS AND RIG UP FOR WIRELINE OPERATIONS -WAIT ON A FOURTH SHEAVE TO ARRIVE -RU SHEVES AND MAKE UP WIRELINE BHA 4.66"OD MAGNET,4"BRUSH,OIL JARS, SPANG JARS 23:30 - 00:00 0.50 FISH N SFAL RUNCMP RIH WITH 4.66"OD MAGNET ON WIRELINE -RIH @ 150'/MIN -SLOW DOWN AT TOP OF 7"LINER,SEEN A SLIGHT BOBBLE GOING THRU THE 7"LINER TOP Printed 10/14/2013 11:28:23AM North America-ALASKA-BP Page 8 of 12 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/21/2013 End Date:10/3/2013 X3-012X7-C:DRILL(7,119,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 9/28/2013 00:00 - 06:00 6.00 FISH N SFAL RUNCMP RIH WITH 4.66"OD MAGNET ON WIRELINE RIH @ 150'/MIN -TAGGED UP 10,186'SLM -PUW-710 LB,SOW-215 LB -CONFIRMED TAG,MADE DEPTH REFERENCE MARK ON THE LINE. -POOH AT 100'/MIN TO SURFACE CLEAN OFF MAGNET AND BRUSH,SMALL AMOUNT OF METAL SHAVINGS RECOVERED. -RIH WITH 4.66"MAGNET ON WIRELINE FOR SECOND PASS -TAG UP ON DEPTH AT 10,186'SLM, VERIFIED BY MARK ON LINE. -POOH AT 100'/MIN 06:00 - 06:30 0.50 FISH N SFAL RUNCMP REMOVE 4.66"MAGNET AND REPLACE WITH 3.5"MAGNET 06:30 - 11:00 4.50 FISH N SFAL RUNCMP RIH WITH 3.5"MAGNET ON WIRELINE FROM SURFACE AT 150'/MIN -TAG UP AND NO GOAT 10,186'WLM -POOH F/10,186'TO SURFACE AT 100'/MIN -RECOVERED NO METAL 11:00 - 12:30 1.50 FISH N SFAL RUNCMP RIG DOWN SLB SLICKLINE 12:30 - 13:30 1.00 FISH N SFAL RUNCMP CLEAN&CLEAR RIG FLOOR LD UNNECESSARY BHA&TOOLS 13:30 - 14:00 0.50 FISH N SFAL RUNCMP SERVICE TOP DRIVE -REPLACE TOP DRIVE GUIDE RAIL PINS 14:00 - 15:00 1.00 FISH N SFAL RUNCMP MOBILIZE BAKER BHA FOR TESTING THE LINER TOP PACKER -WORK ON RIG PM'S 15:00 - 16:00 1.00 FISH N SFAL RUNCMP PU&MU BAKER SEAL ASSY BHA#5 FOR TESTING THE 4.5" &7"LINER TOP PACKER -MU BHA TO 255'MD 16:00 - 20:00 4.00 FISH N SFAL RUNCMP TIH ON ELEVATORS WITH BHA#5 F/255'MD TO 10,173'MD -PUW-185K,SOW-160K, -TAGGED UP AT 10,173' ,PU 10'SET BACK DOWN AND RIH TO 10,180'MD -MONITORED DISPLACEMENT VIA THE TRIP TAN K 20:00 - 22:30 2.50 FISH N SFAL RUNCMP RU TEST EQUIPMENT FOR TESTING THE 4.5" LINER TOP PACKER -TEST LINER TOP PACKER -250 PSI LOW FOR 5 MIN,3500 PSI HIGH FOR 30 MIN EACH TEST CHARTED -NOTIFIED WTLAND OBTAINED AUTHORIZATION TO PROCEED WITH PLANNED OPERATIONS -ATTACHED PRESSURE CHART AND CALCULATOR IN OPEN WELLS 22:30 - 00:00 1.50 FISH N SFAL RUNCMP MONITOR THE WELL PRIOR TO PULLING OFF BOTTOM-WELL STATIC -POOH FROM 10,180'MD TO 9,180'MD -LAYING DOWN SINGLES TO THE PIPE SHED -MONITOR THE DISPLACEMENT ON ISOLATED PIT#2 Printed 10/14/2013 11:28:23AM North America-ALASKA-BP Page 9 of 12 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/21/2013 End Date 10/3/2013 X3-012X7-C:DRILL(7,119,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 9/29/2013 00:00 - 09:30 9.50 FISH N SFAL RUNCMP -POOH FROM 9,180'MD TO 255'MD -LAYING DOWN SINGLES TO THE PIPE SHED -MONITOR THE DISPLACEMENT ON ISOLATED PIT#2 -MONITOR THE WELL 10 MIN PRIOR TO PULLING BHA THRU THE STACK-WELL STATIC I-POOH AND LD PBR SEAL ASSEMBLY PER BOT REP DISCOVERED ALL THE SEALS WERE MISSING FROM THE ASSEMBLY-14 RINGS TOTAL 09:30 - 10:00 0.50 FISH N SFAL RUNCMP CLEAN&CLEAR RIG FLOOR -PREP FOR WIRELINE OPERATIONS 10:00 - 11:30 1.50 FISH N SFAL RUNCMP PU SHEAR JOINT,DRAIN STACK,PULL WEAR BUSHING,&FLUSH THE BOP STACK -LD SHEAR JOINT AND BLOW DOWN THE TOP DRIVE 11:30 - 13:00 1.50 FISH N SFAL RUNCMP WAIT ON SLICK LINE TRUCK -CONT TO CLEAN RIG FLOOR AND GENERAL HOUSEKEEPING 13:00 - 19:00 6.00 FISH N SFAL RUNCMP SPOT SLICK LINE TRUCK AND EQUIPMENT -RU WIRELINE BHA:5.70"OD PRONGED WIRE GRAB,7"BRUSH,SPANG JARS,OIL JARS -RIH ON WIRELINE TO 10,183'WLM. -POOH TO SURFACE,RECOVERED ONE OF THE SEALS FROM THE BAKER SEAL ASSY -THE RING SEAL WAS CAPTURED IN THE WIRE BRUSH. 19:00 - 23:30 4.50 FISH N SFAL RUNCMP -RU NEW BHA WITH:3.62"THREE PRONGED WIRE GRAB 5.5"BRUSH,SPANG JARS,OIL JARS -RIH TO 10,192'MD-WLM -POOH TO SURFACE,RECOVERED 2 TEFLON RINGS(WHITE)AND 6 BLACK RINGS,AND ONE SEGMENTED SLIP FROM THE TNT PACKER 23:30 - 00:00 0.50 FISH N SFAL RUNCMP -RIGGED UP AND RAN BACK IN WITH SAME 3.62"THREE PRONGED WIRE GRAB ASSY -RIH AT 150'/MIN 9/30/2013 00:00 - 04:00 4.00 FISH N SFAL RUNCMP -RIGGED UP AND RAN BACK IN WITH SAME 3.62"THREE PRONGED WIRE GRAB ASSY -RIH AT 150'/MIN -RIH AND SAW SLIGHT TAG AT 10,206'WLM, PU AND WORKED ASSEMBLY DOWN A FEW TIMES -WORKED ASSEMBLY DOWN TO 10,218'-MD, -ESTIMATED 10'INTO THE 4.5"HYDRIL 521 LINER -POOH AND RECOVERED THREE MORE BLACK SEAL RINGS -TOTAL RECOVERED:1-PACKER SLIP SEGMENT,9-BLACK SEAL RINGS,2-WHITE NYLON SEAL RINGS,1-I-WIRE CLAMP PIN -DEBRIS LEFT IN THE HOLE: 3-BLACK SEAL RINGS,7-I-WIRE CLAMP PINS,5-TNT PACKER SLIP SEGMENTS Printed 10/14/2013 11:28:23AM North America-ALASKA-BP Page 10 of 12 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/21/2013 End Date:10/3/2013 X3-012X7-C:DRILL(7,119,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud DaterTime:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual @87.85usft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 04:00 - 07:30 3.50 FISH N SFAL RUNCMP RU AND WIRELINE IN THE HOLE WITH 4.5"OD LEAD IMPRESSION BLOCK ANDA 5.12"OD DRIFT,SPANG JARS,OIL JARS RIH AT 150'/HR -TAG UP AT 10,192'WLM AND POH.NO DISTINGUISHABLE MARKINGS ON LEAD IMPRESSION BLOCK. 07:30 - 08:30 1.00 FISH N SFAL RUNCMP RD WIRELINE -KEEP CONTINUOUS HOLE FILL MONITORING ON PIT#2 08:30 - 11:00 2.50 FISH N SFAL RUNCMP RU 4-1/2"HANDLING EQUIPMENT-MOBILIZE AND RU SLB CONTROL LINE SPOOLS, SHEAVES&CLAMPS -VERIFY COMPLETION ACCURACY,PIPE COUNT AND RUNNING ORDER 11:00 - 12:00 1.00 FISH N SFAL RUNCMP PJSM FOR RUNNING 4.5"COMPLETION -RUN 4.5 12.6 L4/FT,13CR-85,VAMTOP COMPLETION TO-160'PER RUNNING ORDER -INDEXING WLEG,X-NIPPLE,HES TNT PACKER,X-NIPPLE,SAPPHIRE GAUGE,, GLM'S#1-4 FIV VALVE,X-NIPPLE -TORQUE TURN VAMTOP CONNECTIONS TO 4,440 FT-LBS -BAKER LOCK ALL CONNECTIONS BELOW THE PRODUCTION PACKER -SLB REP INSTALLED I-WIRE TO SAPPHIRE GAUGE AND TESTED CONNECTIVITY -LOSS RATE AT ZERO BPH 12:00 - 18:30 6.50 FISH` N SFAL RUNCMP -RUN 4.5"12.6 LB/FT,13CR-85,VAMTOP COMPLETION F/160'MD TO 2,030'MD -RUN COMPLETION PER RUNNING ORDER MONITORING DISPLACEMENT VIA THE TRIP !TANK -TESTING THE I-WIRE EVERY 1,000' 18:30 - 00:00 5.50 RUNCOM P RUNCMP RUN 4.5"12.6 LB/FT,13CR-85,VAMTOP COMPLETION F/2,030'TO 5,093'MD -MD PER RUNNING ORDER -MONITORING DISPLACEMENT VIA THE TRIP TANK -TESTING THE I-WIRE EVERY 1,000' 10/1/2013 00:00 - 04:00 4.00 RUNCOM P RUNCMP -RUN 4.5"12.6 LB/FT,13CR-85,VAMTOP COMPLETION F/5,093'MD TO 7,452'MD -MONITORING DISPLACEMENT VIA THE TRIP TANK -TESTING THE I-WIRE EVERY 1,000' 04:00 - 10:00 6.00 RUNCOM P RUNCMP SLB COMPLETION HOOK UP CONTROL LINES TO THE F.I.V VALVE AND RIG UP TEST EQUIPMENT -TEST CONTROL LINES TO 5K PSI -CYCLE F.I.V TO CLOSED POSITION AND TEST TO 1000 PSI,OK,BLEED PRESSURE TO 250 PSI AND CYCLE F.I.V TO OPEN POSITION,CONFIRM OPEN WITH PSI DROP. RIG DOWN TEST EQUIPMENT MAINTAIN CONTINUOUS HOLE FILL WHILE CONTROL LINES ARE HOOKED UP 10:00 - 15:30 5.50 RUNCOM P RUNCMP CONT RUN 4.5"12.6 LB/FT,13CR-85,VAMTOP COMPLETION F/7,452'MD TO 10.183'MD -TEST I-WIRE EVERY 1000' Printed 10/14/2013 11:28:23AM North America-ALASKA-BP Page 11 of 12 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/21/2013 End Date:10/3/2013 X3-012X7-C:DRILL(7.119,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release: 10/3/2013 Rig Contractor:DOYON DRILLING INC. UWI: Active datum:Y-13A actual t 87.85usft(above Mean Sea Level) Date From-To Hrs l Task Code NPT NPT Depth Phase Description of Operations (hr) (usft) 15:30 - 18:00 2.50 RUNCOM P RUNCMP POOH TO 10,087' AND PICK UP/MAKE UP SPACE OUT PUPS(9.89' 2.10') MAKE UP LANDING JOINT TOTBG HANGER -CONNECT CONTROL LINES TO TBG HANGER -LAND WLEG AT 10,177 FT(4 FT INSIDE 11 FT PBR) 18:00 - 22:00 4.00 RUNCOM P RUNCMP RIG UP TEST EQUIPMENT TO F.I.V -CYCLE F.I.V CLOSED AND TEST TO 1,000 Pal,OK -BLEED PRESSURE TO 250 PSI AND CYCLE F.I.V TO OPEN POSITON AND CONFIRM WITH PRESSURE DROP. 22:00 - 22:30 0.50 RUNCOM i P RUNCMP LAND TBG HANGER IN PROFILE _ -CAMERON RUN IN LOCK DOWN SCREWS. 22:30 - 00:00 1.50 RUNCOM P RUNCMP RIG UP LINES FOR REVERSE CIRCULATION - PRESSURE TEST LINES TO 250 PSI LOW/ 3500 PSI HIGH -REVERSE CIRCULATE 156 BBLS 8.6 BRINE, 130 BBLS OF INHIBITED BRINE FOLLOWED BY 194 BBLS OF 8.6 PPG CLEAN BRINE 10/2/2013 00:00 - 00:30 0.50 RNTBHG P TUBHGR I CONT TO REVERSE CIRCULATE 194 BBL OF 8.6 PPG BRINE -PUMP 5 BBL BRINE DOWN TBG TO CLEAN RHC-M PROFILE 00:30 - 05:00 4.50 RNTBHG P TUBHGR DROP BALL ROD -PRESSURE TEST TBG 250 PSI LOW/5 MIN -INCREASE PRESSURE TO 3500 PSI TO SET PACKER,HOLD AND CHART FOR 30 MINUTES -BLEED TBG TO 1600 PSI. -PRESSURE TEST IAAND PACKER TO 250 PSI LOW/ 3500 PSI HIGH FOR 30 CHARTED MINUTES. -BLEED PRESSURE AND SHEAR DCR VALVE -CIRC 5 BBLS DOWN TBG AND 5 BBLS DOWN IA TO CONFIRM SHEAR. I-RIG DOWN TEST EQUIPMENT AND PULL LANDING JT. 05:00 - 08:00 3.00 WHSUR P WHDTRE INSTALL TWC AND PRESSURE TEST F/ BELOW 250 PSI LOW 5 MIN/ 3500 PSI HIGH 30 MIN -ATTEMPPT TEST FROM ABOVE,LANDING JT XO LEAKED,PULL LANDING JT -CLOSE BLIND RAMS AND TEST TWC FROM ABOVE 250 PSI LOW 5 MIN/ 3500 PSI HIGH 5 MIN 08:00 - 11:30 3.50 BOPSUR P WHDTRE NIPPLE DOWN BOP 11:30 - 15:00 i 3.50 WHSUR P WHDTRE TERMINATE F.I.V CONTROL LINES AND I-WIRE FROM TBG HANGER TO WELL HEAD 15:00 - 16:30 1.50 WHSUR P WHDTRE NIPPLE UP ADAPTER FLANGE AND DRY HOLE TREE 16:30 - 17:30 1.00 WHSUR P WHDTRE TEST ADAPTER SPOOL 250 PSI LOW 5 MIN/ 5000 PSI HIGH 10 MIN,OK W 17:30 - 18:30 1.00WHSUR P ' WHDTRE I TEST F.I.V LINES AND I-VIRE,OK 1-18:30 - 19:30 1.00 WHSUR P WHDTRE TEST DRY HOLE TREE 250 PSI LOW 5MIN/ 5000 PSI HIGH 10 MIN,OK 19:30 - 20:30 1.00 WHSUR P WHDTRE RIG UP DSM LUBRICATOR AND TEST SAME TO 250 PSI LOW/3500 PSI HIGH 5 MIN EACH. OK -PULL TWC Printed 10/14/2013 11:28:23AM North America-ALASKA-BP Page 12 of 12 Operation Summary Report Common Well Name:Y-13 AFE No Event Type:COM-ONSHORE(CON) Start Date:9/21/2013 End Date:10/3/2013 X3-012X7-C:DRILL(7,119,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:7/29/1981 12:00:00AM Rig Release:10/3/2013 Rig Contractor:DOYON DRILLING INC. UW: Active datum:Y-13A actual(g)87.85usft(above Mean Sea Level) Date From-To Hrs j Task Code NPT : NPT Depth Phase Description of Operations (hr) (usft) 20:30 - 21:30 I 1.00 WHSUR P WHDTRE RIG UP TO FREEZE PROTECT. 21:30 - 22:30 1.00 WHSUR N RREP WHDTRE TROUBLE SHOOT INJECTION PUMP PROBLEM,LOCATE BLOWN FUSE. 22:30 00:00 1.50 WHSUR P I WHDTRE BEGIN REVERSE CIRCULATE 80°DIESEL© 1.5 BPM 300 PSI 10/3/2013 100:00 - 02:00 2.00 WHSUR P WHDTRE CONTINUE TO FREEZE PROTECT WITH DIESEL,TOTAL PUMPED 152 BBLS. -ALLOW TO U-TUBE. 102:00 - 06:00 4.00 WHSUR P WHDTRE RIG UP LUBRICATOR AND TEST TO 250 PSI LOW/3500 PSI HIGH 5/5 MIN -INSTALL BPV AND RIG DOWN LUBRICATOR ✓ ' -TEST FROM BELOW 250 PSI LOW 5 MIN/ 3500 PSI HIGH 30 MIN 1 '-TEST INNER OA VALVES 250 PSI LOW/3500 PSI HIGH 5/5 MIN -RIG RELEASED c 06:00 HRS 10-03-2013 Printed 10/14/2013 11:28:23AM Y-13A, Well History (Post Rig Sidetrack) Date Summary 10/10/13 PULLED B&R FROM RHC PLUG BODY @ 10,156' MD. PULLED BK-DCR& RESET BK-DGLV IN STA 4 @ 3,529' MD. PULLED RHC PLUG BODY FROM X-NIPPLE @ 10,156' MD. MADE MULTIPLE MAGNET RUNS DOWN TO 10,312' SLM (recovered —3cups of metal shavings). 10/11/13 RAN KJ, 3 1/2" GR, 3 1/2" BAIT SUB, XO, 2.50" MAGNET, XO, 3.77"WICKERED SLEEVE, 2.50" MAGNET TO 10,380' SLM. --LEFT BAITED BHA IN HOLE, OAL 66" @—10,380' SLM. MADE 3 UNSUCCESSFUL ATTEMPTS TO RETRIEVE BHA FROM 10,151' SLM. RAN KJ, 3.8"GAUGE RING, 11" EXT, 3.958" BRUSH &2.75" BLIND BOX TO 10,151'SLM (beat down for 30min w/no movement). RAN BAITED 3.79"G.RING, 1'x 1 7/8" STEM, 4 1/2" BRUSH, 2.125" MAGNET, 2.125" FLAT MAGNET, SAT DOWN IN TT ASSEMBLY(metal marks around gauge ring). 10/12/13 RAN BAITED 3.77"CENT, 3.50" BELL GUIDE, 2.125" MAGNET, 2.125 FLAT MAGNET TO 10,157' SLM (metal marks on cent). RAN BAITED 3.77" CENT, KJ, 3.79" GAUGE RING, 2.125" MAGNET(recovered fine metal shavings). BRUSHED TUBING TAIL W/3.958" BRUSH & SCRATCHER. DRIFTED TUBING W/3.805" GAUGE RING. STOPPED @ 10,185' SLM. 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H p a r[ 1- m LL C N o c o 7 E -,51,pc c 0 a) U 0 J a d o' a U ce � m o ` _ a a` O a` W> 0 > 3 c <a W E m c o w oc fn H H 0 U 0 m U m F _ c 75 M 4) a) a a M O N N '00 r 0 0 0 a 0 O I 0 I O W 0 m co 1 0 00 N J J d E E a F 0 p .0. r` CW O X r O Z N • I-1-, O N• d w r) 2 co < X O 1 N N c` > O N N IJ a m 0 mco• u) t o la C v 43, dw m > Q = 0 i+ = Y C tO co m N a) r,- E E 4, 1 re Q y v I N O Z 0 zo < N 0 l_ } a m zE a } 0 a) a a 0 m a Z > r w CO O) U J In U) (2 < HLu H U) Q J J W a I a 0 a <`a) Z 2Tr O w m a' _ O cc 0 H O ? ❑ = w O z Z ❑ m O J 0 '•) J_ } w 0 W N 0 m H Z Zw Z w }O 0 o O W ce O '..a) v 1 0 0 J 0• CL >. V m N E tSlr m m O 2 O > m a O a w v ,,,-0���;,v THE STATE Alaska Oil and Gas ALASKA ,.,Gasezvatuan arnmission wet GOVERNOR SEAN PARNELL 333 West Seventh Avenue LAs), Anchorage, Alaska 99501-3572 Main: 907.279.1433 Fax: 907.276.7542 Steven Deckert Engineering Advisor BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU Y-13A Sundry Number: 313-550 Dear Mr. Deckert: 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 P. oerster Chair, ommissioner DATED this 3/ day of October, 2013. Encl. , II i3RECE STATE OF ALASKA I° OCT 1 5 Z6,.) ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS A0GC -'l3 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 Susp.Well❑ Stimulate E • Alter Casing❑ Other. ❑ 2.Operator Name. 4.Current Well Class: 5.Permit to Drill Number. BP Exploration(Alaska),Inc. Exploratory ❑ Development Q 212-140-0 ' 3.Address: Stratigraphic ❑ Service ❑ 6 API Number. P.O.Box 196612,Anchorage,AK 99519-6612 50-029-20634-01-00 7.If perforating: 8.Well Name and Number. What Regulation or Conservation Order governs well spacing in this pool? PBU Y-13A Will planned perforations require a spacing exception? Yes 0 No 0 9.Property Designation(Lease Number): 10.Field/Pool(s): ADL0028287 + PRUDHOE BAY, PRUDHOE OIL ' 11. PRESENT WELL CONDITION SUMMARY Total Depth MD(ft): Total Depth TVD(ft): Effective Depth MD(ft): Effective Depth ND(ft). Plugs(measured): Junk(measured): 16441 8854 16441 8854 None 10218 Casing Length Size MD ND Burst Collapse Structural Conductor 80 20"x 30" 37-117 37-117 Surface 2679 13-3/8"72#L-80 42-2721 42-2720.91 4930 2670 Intermediate None None None None None None Production 3916 9-5/8"47#L-80 37-3953 37-3913.24 6870 4760 Liner See Attachment See Attachment See Attachment See Attachment See Attachment ' See Attachment Perforation Depth MD(ft). Perforation Depth TVD(ft): Tubing Size: Tubing Grade: Tubing MD(ft): 11568'-16175' 8879.61'-8851.48' 4-1/2"12.6#13Cr80 13Cr80 34-10177 Packers and SSSV Type. See Attachment for Packer Types Packers and SSSV MD(ft)and TVD(It): See Attachment for Packer Depths No SSSV Installed No SSSV Installed 12.Attachments: Description Summary of Proposal 0 13.Well Class after proposed work: Detailed Operations Program 0 BOP Sketch ❑ Exploratory ❑ Development 0 Service ❑ 14.Estimated Date for 15.Well Status after proposed work: Commencing Operations: 11/1/13 Oil E ' Gas ❑ WDSPL ❑ Suspended ❑ 16.Verbal Approval: Date: WINJ ❑ GINJ ❑ WAG ❑ Abandoned ❑ Commission Representative: GSTOR 0 SPLUG ❑ 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Steven Deckert Email Steven.Deckert@BP.Com Printed Name S yen Deckert Title Engineering Advisor Signature y \Phiç 564-4128 1 Date Prepared by Garry Catron 564-4424 COMMISSION USE ONLY Conditions of approval: Notify Commission so that a representative may witness Sundry Number J V3— 455-0 Plug Integrity ❑ BOP Test ❑ Mechanical Integrity Test ❑ Location Clearance ❑ Other Spacing Exception Required? Yes ❑ No u Subsequent Form Required: /0 — 4 b APPROVED BY Approved by.a.4) 21,1e4,2„IL COMMISSIONER THE COMMISSION Date: (O - 31_ /3 Form 10-403 Revised 10/2012 0 RiveirNi0A's slid for 12 months from the date of approval. Submit Fo and A ch ents in DuplicateIVi-F 1e'/2d1/ 3 F B AS NOV 6 ,n,,, , 1"‘---6%%/.57; /0;v Is.►3 111 a) 0 0 a o co o o 0,2 co , co � U J M J J M a) Q O O O O o (B t Co N- O 1U N- O Lf) o LO CO 'Cr N U 12 o 0 0 0 0 L N N- CO M N O CO O m O O V CO a) CU - L M N � co co O N- CO CO CO N CO I- Q CO0 O I� LO L N Q M N- r M M CO 00 RS E 00 C coM C CON m co co N U) O Q r- O Co N O � J cn 0 v 0 (� N- COMN- N- N v U o ' ' CO L O o U co Q U ED- M J J M k N *k N X *k L O O N 00 c- N - _ N- N LO N M ct rt O O M 0.) CO CO CD N N- r- N - co O) O O J Co CO M N Z O O a' I- w D Q U Q C c Q w Z O Z Z c DD U J J d U) II Packers and SSV's Attachment ADL0028287 Well Facility Type MD Top Description TVD Top Y-13A PACKER 3794 7" Baker ZXP Top Packer 3768 Y-13A PACKER 10054 4-1/2" HES TNT Perm Packer 8658 Y-13A PACKER 10174 4-1/2" Baker ZXP Packer 8750 Y-13A PACKER 10373 4-1/2" HES Water Swell Packer 8900 Y-13A PACKER 11180 4-1/2" HES Water Swell Packer 8914 Y-13A PACKER 11473 4-1/2" HES Water Swell PackerNot 8880 Y-13A PACKER 11615 4-1/2" HES Water Swell Packer 8880 Y-13A PACKER 12139 4-1/2" HES Water Swell Packer 8878 Y-13A PACKER 12490 4-1/2" HES Water Swell Packer 8877 Y-13A PACKER 12845 4-1/2" HES Water Swell Packer 8876 Y-13A PACKER 13186 4-1/2" HES Water Swell Packer 8876 Y-13A PACKER 13561 4-1/2" HES Water Swell Packer 8883 Y-13A PACKER 14418 4-1/2" HES Water Swell Packer 8867 Y-13A PACKER 14730 4-1/2" HES Water Swell Packer 8859 Y-13A PACKER 14972 4-1/2" HES Water Swell Packer 8862 Y-13A PACKER 15123 4-1/2" HES Water Swell Packer 8869 Y-13A PACKER 16041 4-1/2" HES Water Swell Packer 8849 Y-13A PACKER 16293 3-1/2" HES Water Swell Packer 8853 11/ Prudhoe Bay Unit Y-13A Multi-Stage HAW Frac Y-13 was sidetracked from its original bottomhole location and completed in October of 2013 as horizontal producer Y-13A in the Sag formation. The well was completed with 4.5" tubing and a 4.5" liner with eight FracPorts and fifteen swellable packers providing separation between each FracPort and isolation from major faults. We will hydraulically open the first FracPort, pump a frac job, drop a ball to open the next frac port, pump a frac job, and repeat until a total of eight frac jobs have been completed. These balls will provide isolation from the previous stage and allow us to move from the toe of the well towards the heel providing discrete fracture stimulations. Proposed Procedure: Schlumberger Pumping Services: (Sag Frac) 1. Conduct Safety Meeting and Identify Hazards. Inspect Wellhead and Pad Condition to identify any pre existing conditions. 2. Ensure all Pre-frac Well work has been completed and confirm the tubing and annulus are filled with a freeze protect fluid to 2,000' TVD. 3. Ensure the 10-403 Sundry has been reviewed and approved by the AOGCC. 4. MIRU 13 clean insulated 500 bbl Frac tanks (450 bbls usable volume per tank), with a berm surrounding the tanks that can hold a single tank volume plus 10%. Load tanks with 100° F seawater (approx. 5000 bbls are required for the treatment with data frac, eight treatments, and flush). 5. MIRU SLB Frac Equipment. PT Surface lines to 7,500 psi using a pressure test fluid. Set nitrogen pressure relief valve off treating line to relieve at 6000 psi. Set pump trips at 5500 psi, 5250 psi, 4000 psi, and 4750 psi. 6. Set up inner annulus pop-off system and ensure lines are clear and all components are functioning properly. Set pop-off valve to relieve at 3500 psi (the inner annulus will have been previously pressure tested to 3500 psi). Pressure up the inner annulus to 2500 psi. 7. Pump Breakdown Test, Step Rate Test and Data Frac into FracPort #1. Bring pumps up to maximum rate of 20 BPM as quickly as possible, pressure permitting. Slowly increase annulus pressure from 2,500 psi to 3,000 psi as the tubing pressures up. Maintain 3000 psi on annulus for remainder of frac work. 8. Perform a hard shut down, Obtain ISIP and fluid efficiency estimates. 9. Pump the prop'd frac job by following schedule @ 20 bpm with a maximum expected treating pressure of 3500 psi. It FracPort#1 Treatment: • 100 bbls SLB YF-128FlexD fluid Pad. • 100 bbls SLB YF-128FlexD fluid w/0.5 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/ 1 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/2 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/3 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/4 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/5 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/6 ppga proppant. • Launch ball 2.625" ball to open FracPort#2. FracPort#2 Treatment: • 100 bbls SLB YF-128FIexD fluid Pad. • 100 bbls SLB YF-128FIexD fluid w/0.5 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/ 1 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/2 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/3 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/4 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/5 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/6 ppga proppant. • Launch ball 2.750" ball to open FracPort#3. FracPort#3 Treatment: • 100 bbls SLB YF-128FIexD fluid Pad. • 100 bbls SLB YF-128FIexD fluid w/0.5 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/ 1 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/2 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/3 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/4 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/5 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/6 ppga proppant. • Launch ball 2.875" ball to open FracPort#4. FracPort#4 Treatment: • 100 bbls SLB YF-128FIexD fluid Pad. • 100 bbls SLB YF-128FlexD fluid w/0.5 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/ 1 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/2 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/3 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/4 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/5 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/6 ppga proppant. • Launch ball 3.000" ball to open FracPort #5. FracPort#5 Treatment: • 100 bbls SLB YF-128FIexD fluid Pad. • 100 bbls SLB YF-128FIexD fluid w/0.5 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/ 1 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/2 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/3 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/4 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/ 5 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/6 ppga proppant. • Launch ball 3.125" ball to open FracPort #6. FracPort #6 Treatment: • 100 bbls SLB YF-128FlexD fluid Pad. • 100 bbls SLB YF-128FIexD fluid w/0.5 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/ 1 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/ 2 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/3 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/4 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/5 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/6 ppga proppant. • Launch ball 3.250" ball to open FracPort #7. FracPort#7 Treatment: • 100 bbls SLB YF-128FIexD fluid Pad. • 100 bbls SLB YF-128FIexD fluid w/0.5 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/ 1 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/ 2 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/3 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/4 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/5 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/6 ppga proppant. • Launch ball 3.375" ball to open FracPort #8. FracPort#8 Treatment: • 100 bbls SLB YF-128FIexD fluid Pad. • 100 bbls SLB YF-128FIexD fluid w/0.5 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/ 1 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/ 2 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/3 ppga proppant. • 50 bbls SLB YF-128FIexD fluid w/4 ppga proppant. • 50 bbls SLB YF-128FlexD fluid w/5 ppga proppant. • 60 bbls SLB YF-128FIexD fluid w/ 6 ppga proppant. • Flush with 166 bbls of linear fluid & mineral oil freeze protection. • Total Proppant: Approx. 320M lbs of 20-40 Carbolite proppant. 10. Monitor the surface pressure fall-off at the end of the job for 30 minutes, if the well does not screen out. 11. RDMO SLB Equipment. Freeze Protect the tubing and wellhead if not able to complete following the flush. 12. Well is ready for Post Frac well prep for flowback (Slickline and possibly CTU). 13. Flowback will be through a portable separator and into the normal production facilties. Initial mineral freeze protection volume and solids dumps will be diverted and trucked to appropriate disposal facility. Frac fluids, oil, gas, and water will be routed to normal production facilities. Once the frac balls have been recovered and the solids have dropped to an acceptable level, the portable separator will be removed from the flow process. ii• Stimulation Surface Rig-Up Bleed/Tallle Tale Tank Ch �� ----- - - L ��� • Minimum pressure rating on all surface treating 0 lines 10,000 psi • Frac tree rated for 6500 psi. •c... • Main treating line PRV is set to 500 psi below working pressure rating of frac tree • Frac pump trip pressure setting are staggered and «...ri set below main treating line PRV. • IA parallel PRV set to 3500 psi. 3,dan, L • - Pop ON Tank Pump Tnuk Pop OR Tank a o` Fax Puep Zvi ►m P,1 Frac Pump cr.c Pump P 1 1 1 ' Frac.Pure Frac Puop I, 1 Pit F,ac Pump 13-12A Rig up on 6.5M 4 1/16" Cameron Tree aiiN _ .., .. �pli li'111�1'1 c_.,,,,. 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Q O C co a) O c U .- N C nom, .0 0) W (6 •O _ C O O O H Ow —5 I •N � o 4--� c c� 2 ._ i Q O i+ L C CO _c Q) cu sm L 0 M a) as — CD a) C _c a) -0 U i i () _0) sZ V 1) a) a) m e O 0 CO v v 2 a. 0 (6 sZ wai 2 E a) 1— Lu. 2 -0 'a a) Z O O }1 .CI) 4 - — 6. 0 > .� 'O _� cn -(13o (Q cn -0 a) -0 U r- () O U) O 4_ � 1— E Ecco oo '- 0 I . 41Uo1-‘114M § o § a R A A A 6o 0 0 ci 0 6 o d s CD 1 8 4 ,13 -C s , CO Si Cll s O Us s s s co - ,`:',5 m m L • �r. t I _ 8 °legs ye6UIN au,4spueS bZ 1e4s^I v aeleUS N ?c., m !n tN_J i/) • Cement Evaluation Survey Plat / + a oa Q a c 0 ala o 0 O o a 0 <CO 07- P a 9 o c >> 2 � go c E ° (II) ~ > 8 rn OP Hill m a L m c coP >.- y^� f co m co N BSp,� °) / Y — 6 i^0, _,., .. y wY-09A Y-COAL 1-01 Y-12> OTlift ----------. >- <a 0 )0 , bgz� o o E� 7 A } Q\ Y i % J.e` `N Y 7 6 O�-r Cement Evaluation of Y-13A and wells within 1/4 mile of Y-13A Y-13A: 7" Liner (10303') was top-set on the Sag formation and a cement job was pumped on 8/31/2013 . The cement pumped was 47 bbl 15.8 ppg Class G cement, displaced by 10.5 ppg mud. The plugs were bumped to 3000 psi, floats held. Full returns were observed during the job. A 4-1/2" cement-less FracPort - swell packer liner (16353') was installed in the Sag formation on 9/22/2013. A-05A: 7" Liner (10843') cement job was pumped on 1/22/2007 . The cement pumped was 69 bbl 12.5 ppg Lite Crete Gas Blok lead slurry and 35 bbl 15.8 ppg Class G cement, displaced by 10.6 ppg mud. The plugs were bumped on both to 3500 psi, floats held. Temporally packed off and lost 42 bbl during the job. Estimated Top of Cement at 8900'. 4-1/2" Liner (14178') cement job was pumped on 2/5/2007 . The cement pumped was 89.5 bbl 15.8 ppg Class G cement, displaced by 8.5 ppg mud. The plugs were bumped to 3500 psi, floats held. 37 bbl lost while cementing. 17.5 bbl cement was circulated out to surface. Y-05A: 7" Liner cement job was pumped on 8/24/1995 . The cement pumped was 105 bb115.7 ppg Class G cement, displaced by 10.1 ppg mud. The plugs were bumped to 3000 psi. No fluid loss were recorded during the job. Y-05B: 2-7/8"x3-3/16" Liner (13531') cement job was pumped on 11/7/2008. The cement pumped was 38 bbl 15.8 ppg Class G cement, displaced by 2% KCI. 4 bbl was lost after cement at the shoe. Y-11 C: 7" Liner (10900') cement job was pumped on 11/25/2005 . The cement pumped was 39 bbl 15.8 ppg Class G cement, displaced by 11.1 ppg mud. The plugs were bumped to 3600 psi, floats held. Full returns were observed during the job. 4-1/2" Liner (14313') cement job was pumped on 12/21/2005. The cement pumped was 127 bbl 15.8 ppg Class G cement, displaced by 8.7 ppg mud. The plugs were bumped to 4500 psi. No fluid loss were recorded during the job. 50 bbl cement was circulated out to surface. Y-12: 9-5/8" Casing (9003') two stage cement job was pumped on 1/6/1981 . The first stage cement pumped was 217 bbl 15.8 ppg Class G cement, displaced by diluted 9.1 ppg mud. The second stage cement pumped was 24 bbl of 15.6 ppg Permafrost C. The plugs were bumped on both stages to 3000 psi, floats held. Full returns were observed during the job. 7" Liner (9904') cement job was pumped on 7/27/1981. The cement pumped was 79 bbl 16.0 ppg Class G cement, displaced by 9.9 ppg mud. The plugs were bumped to 3000 psi, floats held. No loss were recorded during the job. Y-14A: 7" Liner (10541') cement job was pumped on 10/25/1995 . The cement pumped was 53 bbl 15.7 ppg Class G cement, displaced by 11.1 ppg mud. The plugs were bumped to 3500 psi, floats held. Full returns were observed during the job. Y-14B: 4-1/2" Slotted Liner (11300') was installed with 3-3/4" barefoot (12171') completion on 2001. Y-21 A: 7" Liner (11200') cement job was pumped on 4/21/1995. The cement pumped was 93 bbl Class G cement, displaced by 9.8 ppg mud. The plugs were bumped. No fluid loss were recorded during the job. 4-1/2" Slotted Liner (13485') was installed. Y-30: 7-5/8" Casing (9064') cement job was pumped on 2/20/1991. The cement pumped was 199.4 bbl 13 ppg Class G cement and 27 bbl 15.8 ppg Class G cement, displaced by 9.4 ppg mud. The plugs were bumped to 3000 psi, floats held. Full returns were observed during the job. 5-1/2" Liner (9540') cement job was pumped on 2/24/1991. The cement pumped was 40 bbl 10.5 ppg Class G cement and 27 bbl 15.7 ppg Class G cement, displaced by 8.9 ppg mud. The plugs were bumped to 3500 psi. No fluid loss were recorded during the job. Y-30L1: 2-3/8"x2-7/8" Slotted liner (9600') was installed on 2001. Y-34: 7-5/8" Casing (9417') cement job was pumped on 6/11/1991 . The cement pumped was 210 bbl 13.0 ppg lead and 27 bbl 15.8 ppg Class G cement, displaced by 9.9 ppg mud. The plugs were bumped. No fluid loss were recorded during the job. Y-34A: 2-7/8" Liner (11163') cement job was pumped on 3/5/1999. The cement pumped was 17 bbl 15.9 ppg Class G cement, displaced with 2% KCI. The plugs were bumped on schedule, floats held. Full returns were observed during the job. Y-35A: 5-1/2" Liner (10923') cement job was pumped on 1/12/2003 . The cement pumped was 30 bbl 15.8 ppg Class G cement, displaced by 10.5 ppg mud. The plugs were bumped to 3000 psi, floats held. Packed off with 10 bbl left in displacement. No cement was circulated out to surface. 3-1/2" Slotted Liner (12749') was installed. TREE= 4-1/16"CNV Y-1 3 A S OTES: WELL ANGLE<70°i 10529"""" WELLHEAD= GRAY • 4-1/ ROME LNR"'INITIAL WELLBORE NOT ACTUATOR= AXELSON SHOWN BELOW WHIPSTOCK"' NTAL KB.EEE 85.54' ."' 0 BE ELEV= 51.04' KOP= 3200' or: Max Angle= 102 10992 2015' H4-1/2"IES X NP,D=3 813" A Datum MD= _ 10355' * + } Datum TVD= 8800'SS !�- # 2608' -19-5/8"DV PKR 13-3/8"CSG,72#,L-80 BUTT,D=12.347" -{ 2680' a , 2703' -14-1/2"SLB-SFW-VALVE LUBRICATOR,D=3.86" 3783' 1-19-5/8"X 7"BKR ZXPN LIP,D=6.220" 9-5/8"WHPSTOCK(09/XX/13) -I 3953' ', ~`� 3804' -19-5/8"X 7"BKR FLEX LOCK HGR,D=6.20" 9-5/8"CSG,47#,L-80 BUTT,D=8.681" -{ -3953 9-5/8"MILL OUT WINDOW(Y-13A) 3953'-3970' Minimum ID = 3.813" @ 2015' GAS LIFT MANDRELS 4-1/2" HES X NIPPLE ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 3529 3517 16 KBG CCK BEK - 09/29/13 3 6672 5742 34 KBG DMY BK 0 09/29/13 4-1/2"NOPG SAPPHIRE GAUGE,D=3.864" H 9990' Al 2 8359 7310 25 KBG DMY BK 0 09/29/13 1 9751 8427 40 KBG DMY BK 0 09/29/13 li 10019' _14-1/2"FES X NP,D=3.813" �- : 10054' -17*x 4-1/2"HES TNT FKR,D=3.856" 10085' 4-1/2" 4-1/2"TBG, 12.6#,L-80 VAM TOP, -{ 10143' II 0152 bpf,ID=3.958" M 10156' -4-1/2"FES X NP,D=3.813" II 10174' --17'X 5"FES FRD-E ZXPN LMR,D=4.340" TOP OF4-1/2"LMR -1 10174' i;[. v4 cite 10177' _14-1/2"WL EG,D=4.00" 7"LMR,26#,L-80 HY DRL 563,D=6.276" - 10303' I I __I ELMD TT NOT LOGGED HES WATER SWELL PACKERS q 10208' -15"X 4-1/2"XO SUB,D=3.870' NO SIZE TOP DEPTH MN ID it. ? -FISH-DRLLLNG DEBRIS-SEE HANDOVER 15 4-1/2" 10373 3.958" =% = ATTACHMENT- 10/13/13 ST) 14 4-1/2" 11180 3.958" ► :. SL OBEYED TO-10218'VVLM 13 4-1/2" 11473 3.958" a a 12 4-1/2" 11615 3.958" 4-1/2"FRAC PORT/CHEM TRACER SUB 11 41/2" 12139 3.958" NO DEPTH 0/C DATE 10 4-1/2" 12490 3.958" _ r 8 11568 C 09/21/13 9 4-1/7 12845 3.958" a s 7 12343 C 09/21/13 8 4-1/2" 13186 3.958" i 6 12697 C 09!21/13 7 4-1/7 13561 3.958" 5 13021 C 09/21/13 6 4-1/2" 14418 3.958" _. ' ' 4 13392 C 09/21/13 5 4-1/7 14730 3.958" ►-. 3 14602 C 09/21/13 4 4-1/7 14972 3.958" a s 2 15076 C 09/21/13 3 4-1/2" 15123 3.958" ►= 1 16175 C 09/21/13 2 4-1/2" 16041 3.958" I i O=OPEN C=CLOSED 1.171 1.7.4 16227' 5.475"TOE CIRCULATING VALVE,D=1.00" 1 1 4-1/2"LNR, 13.5#,13CR-80 HYDRL 521, - 16252' - 16252' -14-1/2"X 3-1/2"XO,ID=2.992" .0150 bpf,D=3.880" .14 10 16293' --13-1/2"FES SWELL PKR(#1),ID=2.992" 3-1/2"FLOAT GUDE SHOE(TD) - 16353' P`r_ar DATE REV BY C0MI.64TS DATE REV BY COMMENTS PRIAHOE BAY MMT 08/20/81 AUDI 2 IMTIAL COMPLETION 10/14/13 PJC //CLOUT WINDOW CORRECTION WELL Y-13A 10/13/13 D-25 SIDETRACK(Y-13A) PERMIT No: 2121400 10/08/13 PJC DRUG HO CORRECTIONS AR No: 50-029-20634-01 10/09/13 PJC ADD DRLLNG DEBRIS(FISH) SEC 33,T11N,R13E, 1479'FNL&528'FEL 10/10/13 TK/PJC DRUG DRAFT CORRECTIONS 10/10/13 TK/PJC FNAL ODE APPROVAL BP Exploration(Alaska) • Ferguson, Victoria L (DOA) From: Deckert, Steven L <Steven.Deckert@bp.com> Sent: Friday, October 25, 2013 12:12 PM To: Ferguson,Victoria L(DOA) Subject: RE: PBU Y-13A Frac( PTD 212-140, Sundry 313-550) Attachments: 112348672-1.xlsx; 11238672-1.pdf Victoria, Good questions. Attached is the actual frac tree pressure test report. It is a 4-1/16" tree with the usual Prudhoe configuration of Tree Cap, Swab Valve, Flow Cross, Wing Valve, Surface Safety Valve, and Master Valve. The tree, tubing hanger, and tubing adaptor are all rated to a working pressure of 6500 psi, per API 6A 20`h Edition design and pressure test criteria (eg 10,000 psi). The assembled tree was tested to 6500 psi (passing) in the shop (the scanned copy is a little hard to read, but the Excel sheet shows the detailed pressure test values). We will install the frac tree on the wellhead and pressure test the installed tree assembly to 6500 psi against a two way check (thus including tubing adaptor and hanger in the pressure test). When Schlumberger arrives,we will test their 1002 connection the tree cap to 6500 psi (against a closed swab valve). The treating line pressure relief valve will be set at 6000 psi and the highest pump trip will be set at 5500 psi. We will have a hydraulic control panel on location,to be able to close in the SSV, if necessary. As an additional level of protection, we have installed a Lubricator Valve at 2703' in the tubing. We will have a hydraulic actuator on-site during the job, in case we want to shut-in the Lubricator Valve. A previous analogous Sag frac job treated at 3500 psi (including 900 psi excess differential pressure to shear open the subsequent FracPort with the ball). Steve Deckert Engineering Advisor- BP Alaska Drilling &Wells Work Phone. 907-564-4128 Work Fax: 907-564-5510 Cellular Phone. 907-240-8046 Internet: Steven.Deckerta BP.COM From: Ferguson, Victoria L(DOA) [mailto:victoria.ferguson@alaska.gov] Sent:Thursday, October 24, 2013 3:54 PM To: Deckert, Steven L Subject: PBU Y-13A Frac( PTD 212-140, Sundry 313-550) Steve, In reference to the 6.5M frac tree, could you please send a schematic showing the size/pressure ratings of all components? What are the expected treating pressures? What will the Cameron tree be pressure tested to? Thanx in advance, Victoria Victoria Ferguson Senior Petroleum Engineer State of Alaska Oil&Gas Conservation Commission 333 W.7th Ave,Ste 100 Anchorage,AK 99501 Work (907)793-1247 victoria ferguson analaska.gov 1 M QC Report High Press FRAC 1 12348672 _ 1 TREE AFE: APBTREEROT WeII#: FRAC TREE DATE: 1/12/2013t CID, P/N or ASSY NO. 69517 DESCRIPTION: 4"CIW FLS XMAS TREE 0 = Tree Assy Serial#: 112348672-1 ACTUATOR: Baker W.P Rating: 6,500 ACTUATOR DRAINED AND AVIATION HYDRAULIC OIL PUT IN AND ACTUATOR IS LABELED AS SUCH: Yes Tree Cap SV CR WV SSV MV CV Manufacturer: Cameron Model: FLS Flange Size: 4-1/16" Serial#: 11190295-2 112337941-2 112348672-1 112337941-3 112346489-1 112337941-1 Body Category: B B B B B B Shell Test: Pass Drift Test: Pass Pass Pass Pass Pass Pass Drift Size: 4 1/8 Torqued to Specs: Yes Yes Yes Yes Yes Yes High Pressure Test Results Open Body Test(1) Start Time: 5:27 Stop Time: 5:32 Minutes: 0:05 Pressure: 6515-6501 Open Body Test(2) Start Time: Stop Time: Minutes: Pressure: Side A Gate Test(1) SV WV SSV MV CV Start Time: 0:56 0:56 2:50 11:15 Stop Time: 1:01 1:01 2:55 11:20 Minutes: 0:05 0:05 0:05 0:05 Pressure: 6505-6472 6505-6472 6504-6467 6514-6515 Side A Gate Test(2) SV WV SSV MV CV Start Time: Stop Time: Minutes: Pressure: Side B Gate Test(1) SV WV SSV MV CV Start Time: 11:15 11:15 1:57 0:56 Stop Time: 11:20 11:20 2:03 1:01 Minutes: 0:05 0:05 0:06 0:05 Pressure: 6514-6515 6514-6515 6501-6476 6505-6472 Side B Gate Test(2) SV WV SSV MV CV Start Time: Stop Time: Minutes: Pressure: Test Results: Pass Comments: Test Medium: Hydraulic Fluid 4 1/8 CIW FLS 6500K FRAC XMAS-TREE,PRESSURE TESTED Tester: GLIDEWELL TO A HIGH OF 5000 AND A LOW BETWEEN 200-300,SERVICED W/AEROSHELL 100%,DRIFTED AND TORQUED TO SPECS,CV Inspector: KENDALL VALVE REMOVED TO BE USED AS A TBD VALVE ITS Date: 1/12/2013 SN#111975043-4,ACTUATOR HAS BEEN FUNCTION TESTED Returned To: TRP AND PRESSURE TESTED TO 5000,FRAC TREE CAME FROM 13- 12 C:\Users\vlferguson\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Outlook\2SOMTIOQ\112348672-1 (2).xlsx - 7 e QC Report Low Press FRAC TREE 112348672 -1 AFE: APBTREEROT Well#: FRAC TREE DATE: 1/12/13 Tree Assy Model#: 69517 DESCRIPTION: 4"CIW FLS XMAS-TREE Tree Assy Serial#: 112348672-1 ACTUATOR: Baker W.P Rating: 6,500 ACTUATOR DRAINED AND AVIATION HYDRAULIC OIL PUT IN AND ACTUATOR IS LABELED AS SUCH: Tree Cap SV CR WV SSV MV CV Manufacturer: Cameron Model: FLS Flange Size: 4-1/16" Serial#: 11190295-2 112337941-2 112348672-1 112337941-3 112346489-1 112337941-1 0 Body Category: B B B B B B 0 Shell Test: Pass Drift Test: Pass Pass Pass Pass Pass Pass 0 Drift Size: 4 1/8 Torqued to Specs: Yes Yes Yes Yes Yes Yes 0 Low Pressure Test Results Open Body Test(1) Start Time: 4:46 Stop Time: 4:51 Minutes: 0:05 Pressure: 225-235 Open Body Test(2) Start Time: Stop Time: Minutes: 0:00 Pressure: Side A Gate Test(1) SV WV SSV MV CV Start Time: 12:25 12:25 2:13 11:23 Stop Time: 12:30 12:30 2:18 11:28 Minutes: 0:05 0:05 0:05 0:05 0:00 Pressure: 271-313 271-313 266-259 256-267 Side A Gate Test(2) SV WV SSV MV CV Start Time: Stop Time: Minutes: 0:00 0:00 0:00 0:00 0:00 Pressure: Side B Gate Test(1) SV WV SSV MV CV Start Time: 11:23 11:23 1:19 12:25 Stop Time: 11:28 11:28 1:24 12:30 Minutes: 0:05 0:05 0:05 0:05 0:00 Pressure: 256-267 256-267 240-289 271-313 Side B Gate Test(2) SV WV SSV MV CV Start Time: Stop Time: Minutes: 0:00 0:00 0:00 0:00 0:00 Pressure: Test Results: Pass Comments: Test Medium: Hydraulic Fluid 4 1/8 CIW FLS 6500K FRAC XMAS-TREE,PRESSURE TESTED Tester: GLIDEWELL TO A HIGH OF 5000 AND A LOW BETWEEN 200-300,SERVICED W/AEROSHELL 100%,DRIFTED AND TORQUED TO SPECS,CV Inspector: KENDALL VALVE REMOVED TO BE USED AS A TBD VALVE ITS Date: 1/12/2013 SN#111975043-4,ACTUATOR HAS BEEN FUNCTION TESTED Returned To: TRP AND PRESSURE TESTED TO 5000,FRAC TREE CAME FROM 13- 12 Low Pralserferguson\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Outlook\2SOMTIOQ\112348672-1 (2).xlsx • • ..... 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' • .,. . > ,.r... ;„ .2 t-. 4.; • • V .1,": ,-- • ' T'd 't ' '-'..., . . • lb Ferguson, Victoria L (DOA) From: Deckert, Steven L <Steven.Deckert@bp.com> Sent: Friday, October 25, 2013 12:12 PM To: Ferguson,Victoria L(DOA) Subject: RE: PBU Y-13A Frac( PTD 212-140, Sundry 313-550) Attachments: 112348672-1.xlsx; 11238672-1.pdf Victoria, Good questions. Attached is the actual frac tree pressure test report. It is a 4-1/16" tree with the usual Prudhoe configuration of Tree Cap, Swab Valve, Flow Cross,Wing Valve, Surface Safety Valve, and Master Valve.The tree,tubing hanger, and tubing adaptor are all rated to a working pressure of 6500 psi, per API 6A 20th Edition design and pressure test criteria (eg 10,000 psi). The assembled tree was tested to 6500 psi (passing) in the shop (the scanned copy is a little hard to read, but the Excel sheet shows the detailed pressure test values). We will install the frac tree on the wellhead and pressure test the installed tree assembly to 6500 psi against a two way check (thus including tubing adaptor and hanger in the pressure test). When Schlumberger arrives,we will test their 1002 connection the tree cap to 6500 psi (against a closed swab valve).The treating line pressure relief valve will be set at 6000 psi and the highest pump trip will be set at 5500 psi. We will have a hydraulic control panel on location,to be able to close in the SSV, if necessary. As an additional level of protection, we have installed a Lubricator Valve at 2703' in the tubing. We will have a hydraulic actuator on-site during the job, in case we want to shut-in the Lubricator Valve. A previous analogous Sag frac job treated at 3500 psi (including 900 psi excess differential pressure to shear open the subsequent FracPort with the ball). Steve Deckert Engineering Advisor- BP Alaska Drilling &Wells Work Phone: 907-564-4128 Work Fax: 907-564-5510 Cellular Phone: 907-240-8046 Internet: Steven.DeckertBP.COM From: Ferguson, Victoria L(DOA) [mailto:victoria.ferguson(aalaska.gov] Sent: Thursday, October 24, 2013 3:54 PM To: Deckert, Steven L Subject: PBU Y-13A Frac( PTD 212-140, Sundry 313-550) Steve, In reference to the 6.5M frac tree, could you please send a schematic showing the size/pressure ratings of all components? What are the expected treating pressures? What will the Cameron tree be pressure tested to? Thanx in advance, Victoria Victoria Ferguson Senior Petroleum Engineer State of Alaska Oil&Gas Conservation Commission 333 W 7th Ave,Ste 100 Anchorage,AK 99501 Work (907)793-1247 victoria ferquson(a)aiaska qov 1 :E QC Report High Press FRAC 1 12348672 _ 1 TREE AFE: APBTREEROT Well#: FRAC TREE DATE: 1/12/2013 CID, P/N or ASSY NO. 69517 0 DESCRIPTION: 4"CIW FLS XMAS-TREE bbl Tree Assy Serial#: 112348672-1 ACTUATOR: Baker W.P Rating: 6,500 ACTUATOR DRAINED AND AVIATION HYDRAULIC OIL PUT IN AND ACTUATOR IS LABELED AS SUCH: Yes Tree Cap SV CR WV SSV MV CV Manufacturer: Cameron Model: FLS Flange Size: 4-1/16" Serial#: 11190295-2 112337941-2 112348672-1 112337941-3 112346489-1 112337941-1 Body Category: B B B B B B Shell Test: Pass Drift Test: Pass Pass Pass Pass Pass Pass Drift Size: 4 1/8 Torqued to Specs: Yes Yes Yes Yes Yes Yes High Pressure Test Results Open Body Test(1) Start Time: 5:27 Stop Time: 5:32 Minutes: 0:05 Pressure: 6515-6501 Open Body Test(2) Start Time: Stop Time: Minutes: Pressure: Side A Gate Test(1) SV WV SSV MV CV Start Time: 0:56 0:56 2:50 11:15 Stop Time: 1:01 1:01 2:55 11:20 Minutes: 0:05 0:05 0:05 0:05 Pressure: 6505-6472 6505-6472 6504-6467 6514-6515 Side A Gate Test(2) SV WV SSV MV CV Start Time: Stop Time: Minutes: Pressure: Side B Gate Test(1) SV WV SSV MV CV Start Time: 11:15 11:15 1:57 0:56 Stop Time: 11:20 11:20 2:03 1:01 Minutes: 0:05 0:05 0:06 0:05 Pressure: 6514-6515 6514-6515 6501-6476 6505-6472 Side B Gate Test(2) SVi WV SSV MV CV Start Time: Stop Time: Minutes: Pressure: ! Test Results: Pass Comments: Test Medium: Hydraulic Fluid 4 1/8 CIW FLS 6500K FRAC XMAS-TREE,PRESSURE TESTED Tester: GLIDEWELL TO A HIGH OF 5000 AND A LOW BETWEEN 200-300,SERVICED W/AEROSHELL 100%,DRIFTED AND TORQUED TO SPECS,CV Inspector: KENDALL VALVE REMOVED TO BE USED AS A TBD VALVE ITS Date: 1/12/2013 SN#111975043-4,ACTUATOR HAS BEEN FUNCTION TESTED Returned To: TRP AND PRESSURE TESTED TO 5000,FRAC TREE CAME FROM 13- 12 C:\Users\vlferguson\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Outlook12SOMTIOQ\112348672-1 (2).xlsx lee QC Report Low Press FRAC TREE 112348672 -1 AFE: APBTREEROT Well#: FRAC TREE DATE: 1/12/13 Tree Assy Model#: 69517 DESCRIPTION: 4"CIW FLS XMAS-TREE Tree Assy Serial#: 112348672-1 ACTUATOR: Baker W.P Rating: 6,500 ACTUATOR DRAINED AND AVIATION HYDRAULIC OIL PUT IN AND ACTUATOR IS LABELED AS SUCH: Tree Cap SV CR WV SSV MV CV Manufacturer: Cameron Model: FLS Flange Size: 4-1/16" Serial#: 11190295-2 _ 112337941-2 112348672-1 112337941-3 112346489-1 112337941-1 0 Body Category: B B B B B B 0 Shell Test: Pass Drift Test: Pass Pass Pass Pass Pass Pass 0 Drift Size: 4 1/8 Torqued to Specs: Yes Yes Yes Yes Yes Yes 0 Low Pressure Test Results Open Body Test(1) Start Time: 4:46 Stop Time: 4:51 Minutes: 0:05 Pressure: 225-235 Open Body Test(2) Start Time: Stop Time: Minutes: 0:00 Pressure: Side A Gate Test(1) SV WV SSV MV CV Start Time: 12:25 12:25 2:13 11:23 Stop Time: 12:30 12:30 2:18 11:28 Minutes: 0:05 0:05 0:05 0:05 0:00 Pressure: 271-313 271-313 266-259 256-267 Side A Gate Test(2) SV WV SSV MV CV Start Time: Stop Time: Minutes: 0:00 0:00 0:00 0:00 0:00 Pressure: Side B Gate Test(1) SV WV SSV MV CV Start Time: 11:23 11:23 1:19 12:25 Stop Time: 11:28 11:28 1:24 12:30 Minutes: 0:05 0:05 0:05 0:05 0:00 Pressure: 256-267 256-267 240-289 271-313 Side B Gate Test(2) SV WV SSV MV CV Start Time: Stop Time: Minutes: 0:00 0:00 0:00 0:00 0:00 Pressure: Test Results: Pass Comments: Test Medium: Hydraulic Fluid 4 1/8 CIW FLS 6500K FRAC XMAS-TREE,PRESSURE TESTED Tester GLIDEWELL TO A HIGH OF 5000 AND A LOW BETWEEN 200-300,SERVICED W/AEROSHELL 100%,DRIFTED AND TORQUED TO SPECS,CV Inspector: KENDALL VALVE REMOVED TO BE USED AS A TBD VALVE ITS Date: 1/12/2013 SN#111975043-4,ACTUATOR HAS BEEN FUNCTION TESTED Returned To: TRP AND PRESSURE TESTED TO 5000,FRAC TREE CAME FROM 13- 12 Low Prattilserferguson\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Outlook\2SOMTIOQ\112348672-1 (2).xlsx p. ___ ��,moi .1.! 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H 0 Q Cv.a8`0% tD0A0 mSWS O �eI'�yp1py5�q�0 �j��pW���pyyyyy��pp7,W Pl ry Sal ; yy m 0 _ it } J N f m 8 t _ E ..a-. s �, £ u c • S I 0 4 m'M' 0 PTD Ferguson, Victoria L (DOA) From: Ferguson,Victoria L(DOA) Sent: Wednesday, September 11, 2013 3:10 PM To: 'Kosaka,Takahiro' Cc: Lastufka,Joseph N (Joseph.Lastufka@bp.com) Subject: PBU Y-13A (PTD212-140) Takahiro, You have approval for the planned changes outlined below. Thanx, Victoria Victoria Ferguson Senior Petroleum Engineer State of Alaska Oil&Gas Conservation Commission 333 W 7th Ave,Ste 100 Anchorage,AK 99501 Work (907)793-1247 victoria ferguson@alaska.qov From: Kosaka,Takahiro [mailto:Takahiro.Kosaka@bb.com] Sent: Wednesday, September 11, 2013 2:56 PM To: Ferguson, Victoria L(DOA) Cc: Lastufka, Joseph N Subject: RE: Changes to Y-13A permits Victoria, We got 10.23 ppg EMW. Thanks, Takahiro From: Ferguson, Victoria L(DOA) [mailto:victoria.ferguson@alaska.gov] Sent: Wednesday, September 11, 2013 2:21 PM To: Kosaka,Takahiro Cc: Lastufka, Joseph N Subject: RE: Changes to Y-13A permits What were the results of the FIT in step 12? From: Lastufka, Joseph N [mailto:JoseDh.Lastufka@bD.com] Sent: Tuesday, September 10, 2013 4:11 PM To: Ferguson, Victoria L(DOA) Cc: Kosaka, Takahiro; Deckert, Steven L; Schultz, Kirsten L Subject: FW: Changes to Y-13A permits Victoria, Thanks again for all your help, please see Takahiro's note below with the changes that we discussed earlier. 1 If you have any questions, please let us know. Thanks! Joe From: Kosaka, Takahiro Sent: Tuesday, September 10, 2013 4:06 PM To: Lastufka, Joseph N Cc: Deckert, Steven L; Schultz, Kirsten L Subject: Changes to Y-13A permits Joe, Here is the change we propose and the reasons. 11. Run CBL log to confirm isolation. Planned change: No CBL - All indication show that cementing went as per plan. - Instead of combination of 109 sx LiteCrete and 91 sx Class 'G' in the permit,we pumped 229 sx of Class'G' to covered 1500' MD from the shoe with 30%excess. - Plug was bumped on schedule and float held. - No losses while pumping cement or pumping displacement. - Lift pressure was within 15%of the modeled pressure. - No cement to surface on bottom up after picking up liner running tool above liner packer, indicating channeling did not occurred. 13. Run 4-1/2" 12.6# 13Cr liner with swell packers,frac sleeves, and solid liner to 150' inside 7" liner. 14. Cement only solid section of liner to top of 4-1/2" liner with 15.8 ppg Class G cement. Planned change: Run 4-1/2" 13.5#13Cr liner with swell packers,frac sleeves to 150' inside 7" liner. No cementing. - On the well Y-19A we have learned that this combination solid-cemented system is unreliable and generates additional safety and operational risk.Also the debris associated with the system causes several weeks delay in the production. Cemented liner was intended to isolate water production from Ivishak formation. - New completion will utilize additional swell packers to isolate the heel section of the well;thus, eliminate complication and risks associated with the original design. Thanks, Takahiro Kosaka BP Drilling Engineer +1 (907) 564-5994 office 754C +1 (907) 575-8588 mobile takahiro.kosaka@bp.com 2 (114 , 1Z ,/ yo Y-13 Installed Wellhead Gray Big Bore Equipment A ;MitIii1 0111),„1/! 101 Irct)* N o w� Gray Big Bore Tubing Head Adapter 13-5/8 x 4-1/8 5M Studded Top fIfl (P/N: 19028) .!: - 4 ((-ti Gray Big Bore Tubing Hanger Gray Big Bore Tubing Spool 13-5/8 Flange ") a1 13 x 4-1/2 Butt Csg BTM BTM x 13-5/8 5M Flange Top. 4-1/2 Butt TbgTop (P/N: 119029) (P/N: 113110) ol) \ Jgave � Illf 000 titt tulGray Casing Head (113123) 13-3/8" Butt Btm I14.434elx 13-5/8" 5M Flange Top. 9-5/8 Casing hung — � o off in this Head. 9-5/8" Mandrel Hgr(113108) With neck seals/Poly Pak. yw\��F��jj�s� THE STATE Alaska Oil and Gas �`_��'� °fALASKA Conservation Commission rti GOVERNOR SEAN PARNELL 333 West Seventh Avenue Anchorage, Alaska 99501-3572 �LASY' Main: 907.279.1433 Fax: 907.276.7542 John Egbejimba Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU Y-13A BP Exploration (Alaska), Inc. Permit No: 212-140 Surface Location: 1479' FNL, 528' FEL, SEC. 33, T11N, R13E, UM Bottomhole Location: 2986' FNL, 4327' FWL, SEC. 34, T11N, R13E, UM Dear Mr. Egbejimba: Enclosed is the approved application for permit to re-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 Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission 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 Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Sincerely, (/) Cathy P. Foerster Chair DATED this day of October, 2012. cc: Department of Fish & Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA RECEIVED ALAS JIL AND GAS CONSERVATION COMM ON SEP 0 6 2012 PERMIT TO DRILL 20 AAC 25.005 AQccc 1 a.Type of work: 1 b.Proposed Well Class ®Development Oil - 0 Service-Winj ®Single Zone . 1 c. Specify if well is proposed for: ❑Drill ®Redrill 0 Stratigraphic Test 0 Development Gas 0 Service-Supply 0 Multiple Zone 0 Coalbed Gas ❑Gas Hydrates ❑Re-Entry 0 Exploratory 0 Service-WAG 0 Service-Disp 0 Shale Gas 2 Operator Name: 5.Bond: ®Blanket 0 Single Well 11. Well Name and Number BP Exploration (Alaska) Inc. Bond No 6194193 • PBU Y-13A • 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 16844' . TVD 8857' • Prudhoe Bay/Prudhoe Bay • 4a. Location of Well(Governmental Section). 7. Property Designation(Lease Number): Surface: ADL 028287, 1479' FNL, 528' FEL, Sec. 33, T11N, R13E, UM • Top of Productive Horizon 8. Land Use Permit 13 Approximate Spud Date: 3224' FNL,605' FEL, Sec.33,T11N, R13E, UM December 1,2012 Total Depth: 9.Acres in Property. 14. Distance to Nearest Property. 2986' FNL,4327'FWL, Sec. 34,T11N, R13E, UM 2560 15135' 4b Location of Well(State Base Plane Coordinates-NAD 27). 10. KB Elevation above MSL: 85.54' feet 15.Distance to Nearest Well Open Surface: x- 644290 • y-5948767, Zone- ASP4 GL Elevation above MSL: 49.54' feet to Same Pool: 145' 16 Deviated Wells: Kickoff Depth. 3900' feet • 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 102 degrees Downhole. 3218 • Surface: 2341 • 18. Casing Program: Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling Length MD TVD MD TVD (including stage data) 8-1/2" 7" 26# _ L-80 VamTop 7060' 3700' 3680' 10760' 8855' 109 sx LiteCrete, 91 sx Class'G' 6-1/8" 4-1/2" 12.6# 13Cr80 Hydn1521 6344' 10500' 8655' 16844' 8857' 141.5 sx Class'G', 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): 11290' 9645' 9830' 11240' 9598' None Casing Length Size Cement Volume MD TVD Conductor/Structural 110' - 20"x 30" 8 cu yds Concrete 110' 110' Surface 2680' 13-3/8" 3790 cu ft Permafrost II 2680' 2680' Intermediate 10357' 9-5/8" 1202 cu ft Class'G', 133 cu ft Permafrost C 10357' 8811' Production Liner 1437' 7" 359 cu ft Class'G' 9853'- 11290' 8405'-9645' Perforation Depth MD(ft): 10385'- 10552' Perforation Depth TVD(ft): 8834'-8975' 20.Attachments. 0 Property Plat ®BOP Sketch ®Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis 0 Diverter Sketch 0 Seabed Report 0 Drilling Fluid Program 0 20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative Date: 22. I hereby certify that the foregoing is true and correct. Contact Rahul Madarapu,564-4147 Printed Name .o-n gbejimba Title Engineering Team Leader fPrepared By Name/Number Signature .- �'�%/�PPIF: Phone 564-5859 Date ife jZ Joe Lastufka,564-4091 - Commission Use Only Permit To Drill ' •I Nu .: Permit A rovr' See cover letter for Number: ,2 Z %L/_ 50-029-20634-01-00 I 2, I 4.0. other requirements Conditions of Approval If box is checked,wellwemay not be used to explore for,test,or produce coalbe met tne,gas hydrates,or gas contained shales: [� Other: /0-3S-00 p32 $ ' 34—- Samples Req'd ❑Yes ErNo Mud Log Req'd: 0 Yes [ No e••••-• HZS Measures: E"Yes ❑No Directional Survey Req'd. El'Yes 0 No ... 3"..kti7 ,..........D dcg, /40,1 G }� APPROVED BY THE COMMISSION Date /0 - 1-12.- I ,COMMISSIONER .i f Form 10-401 Revised 07/2009 This permitpis id for 24 mont�f ime f Act(20 AAC 25.006(g)) b it In Duplicate , rD ! I It /(t__ •N‘ 1 •1 To: Alaska Oil & Gas Conservation Commission Clt Cp From: Rahul Madarapu Drilling Engineer Date: September 4, 2012 Re: Y-13A Permit to Drill Well History: J Permit to Drill approval is requested for well Y-13A. Y-13 is a Sag and Ivishak Zone 4 producer that was drilled in 1981. Y-13 was hydraulically fractured in the Ivishak in 1991 and refractured in 1992. Sag perforations were added in 1993. In 1999 a tubing leak was discovered and continued production on a waiver. The T x IA communication appears to be in the pup joint below GLM#1. A Bradenhead leak was found in the year 2002 and welded in the year 2003. This waiver to produce despite a tubing leak was cancelled in the year 2007. The condition of the tubing is poor and hence the well is shut in due to the T x IA communication. PPPOT-T passed on 5/1/2012 PPPOT-IC passed on 5/1/2012 MIT-OA to 2000 psi passed on 5/9/2012 CMIT- T x IA to 3000 psi passed on 5/10/2012 Reason for Sidetrack: The most recent tests indicated 100%water cut with no way to shut-off the water. Due to the fact that a RWO cannot be justified based on the situation, a rotary sidetrack has been found to be the best option to utilize the current wellbore. Y-13A is proposed to be a sidetrack from Y-13 to access Sag River reserves by constructing a horizontal wellbore. Approximately 4100' of existing tubing from Y-13 will have to be cut and retrieved to allow a casing exit from the 9 5/8" casing. An 8 'h" intermediate hole is proposed to be drilled to the top of Sag River to be then isolated with a 7" 26# L-80 liner. A 6 1/8" hole will then be drilled from the bottom of the 7" liner by briefly drilling into the Ivishak and then continuing its trajectory into the Sag River by means of a 6 1/8" hole. The production section is to be completed with 4 1/2" liner system which has a combination of frac sleeves in the Sag river and solid section in the Ivishak that is to be cemented. Production is to be limited to the Sag River. v MASP: 2341 psi (7.06 ppg pore pressure at SAG). Pre-Rig Work: (scheduled to begin October 1, 2012) — 1:)d��. 2- 1. S Pull WRP. D&T to TD. 2. F Injectivity Test. 3. W PPPOT-T, PPPOT-IC. Function all LDS. 4. F Fullbore P&A - 80 bbls of 15.8 class G cement. TOC at 8000'. 5. F MIT-T. MIT-IA. MIT-OA Notify State Inspector to Witness. 6. S D&T to TOC. Pull deepest GLV, drift for jet cut. Notify State Inspector to witness tag. 7. F Circ out Well. 8. E Jet Cut TBG - Jet cut at 4100' MD. 9. V Set BPV. 10. F Pressure test BPV. 11. E Rig support: Set EZSV plug at 3950' MD. Rig Work: (scheduled to begin on December 1, 2012) fs4tk 1. MIRU and test BOPE to 250 psi low and 3500 psi high. t 2. Pull and lay down 4100' of 4 IA" 12.6# L-80 tpbkng. o-r - et A_ 3. Set cast iron bridge plug at—3950' MD. ( 4. Set 9 5/8"whipstock and Mill 8 1/2"window at—3900' MD with 20' of open hole with 9.0 ppg mud. r New PTD Y-13A: 5. PU into 9 5/8" casing and perform a Leak off Test. POOH. 6. Drill intermediate section: 8 1/2" OH,—6900' (4 deg/100')with Gamma Ray/Resistivity/Caliper to —5' into TSAG. 7. Install 7"rams in upper cavity of BOP and pressure test to 3500 psi. 8. Run 7" 26#L-80 liner to 150' inside 9 5/8" casing. 9. Cement 7" liner to 1500' above shoe with 15.8 ppg Class G cement. 10. Replace upper cavity of BOP from 7"rams and pressure test to 3500 psi. 11. Run CBL log to confirm isolation. F ir of 14 too 12. Drill 6 1/8"production hole with Gamma Ray/Resistivity/Azimuthal eirZy/Neutron/Azimuthal . Caliper to—16850' MD. 13. Run 4 1/2" 12.6# 13-Cr liner with swell packers, frac sleeves, and solid liner to 150' inside 7" liner. 14. Cement only solid section of liner to top of 4 IA" liner with 15.8 ppg Class G cement. 15. Run 4 1/2" 12.6# 13-Cr completion from 4 1/2" liner top to surface. 16. Freeze protect well to 2000' TVDSS with diesel. 17. Set 4 'A"production packer and individually test the tubing to 3500 psi. and annulus to 3500 psi for 30 minutes each. 18. Install TWC and pressure test from above to 3500 psi. 19. ND BOPE, NU tree and test to 5000 psi. 20. Lubricate out TWC. Set BPV and test to 2000 psi. 21. RDMO. Post-Rig Work: 1. Re-install wellhouse and FL's. 2. Generic GLV's Rahul Madarapu Drilling Engineer 907 564 4147 CC: Well File Sondra Stewman/Joseph Lastufka Attached: Existing Y-13 Proposed Pre-rig for Y-13A Proposed Y-13A Directional Plan Rig BOP Schematic Planned Well Summary Well Y-13A Well Producer Target Sag River Type Objective API Number: Current Status Shut-In Estimated Start Date: 12/15/12 Time to Complete: 49 Days Surface Northing Easting Offsets TRS Location 5,948,766.5 644,290.1 3800.65 ' FSL/527.86' FEL T11N R13E 33 TSAG Northing Easting TVDss Offsets TRS 5,947,084 643,179 8765' 2139.4' FSL/ 1674.6' FEL T11N R13E 33 Northing Easting TVDss Offsets TRS 5,947,020 644,250 -8784' 2055.19 FSL 605.2 FEL T11N R 13E 33 5,947,100 644,625 -8787' 2128.1 FSL 228.59 FEL T11N R13E 33 5,947,210 645,430 -8777' 2222.4 FSL 4701 FEL T11N R13E 34 Production 5,947,235 646,025 -8785' 2235.8 FSL 4105.6 FEL T11N R13E 34 Hole Target 5,947,250 646,405 -8789' 2243.3 FSL 3725.39 FEL T11N R13E 34 Locations 5,947,275 646,980 -8787' 2257.12 FSL 3149.99 FEL T11N R13E 34 5,947,290 647,550 -8783' 2260.94 FSL 2579.8 FEL T11N R13E 34 5,947,305 648,015 -8784' 2266.82 FSL 2114.58 FEL T11N R13E 34 5,947,320 648,410 -8773' 2274.07 FSL 1719.35 FEL T11N R13E 34 5,947,330 648,640 -8756' 2279.59 FSL 1489.19 FEL T11N R13E 34 BHL 5,947,355 649,176 -8767' 2294.07 FSL 952.78 FEL T11N R13E 34 Planned KOP: 3900' MD/3776' TVDSS Planned TD: 16,844' MD/8767' TVDss Rig: Doyon 25 BF/RT: 36.5'/49' RTE: 89.80' Directional-Schlumberger WP04 KOP: 3900' MD Maximum Hole Angle: -60° in the 8-1/2" intermediate section -102° in the 6-1/8" production section Close Approach Wells: Due to close approach with Y-26 at approximately 200' from kick-off point, a deep set plug is to be set until the well has been drilled and cased. Survey Program: 3900' to 10760' MD = MWD+ IIFR+MS 10760' to 16844' MD = MWD+IIFR+MS Nearest Property Line: 15,135' Nearest Well within Pool: 145' to Y-26 at 4,440' MD in intermediate 8"A" hole section Formation Tops & Pore Pressure Estimate (SOR) Estimated Depth Fluid Most Likely Minimum Maximum Formation Formation Top Uncertainty Type Pore Pressure Pore Pressure Pore Pressure (TVDss) (+1-TVD ft) (for sands) (EMW ppg) (EMW ppg) (EMW ppg) SV3 2,870.0 0 Water/brine 8.45 8.35 8.70 SV2 3,097.0 0 Water/brine 8.45 8.35 8.70 SV1 3,443.0 0 Water/brine 8.45 8.35 8.70 i KOP @ 3900' 3,776.0 0 Water/brine 8.45 8.35 8.70 MD UG4 3,976.0 0 Water/brine/gas 8.45 8.35 8.70 7 I�. ., for'• , UG3 4,270.0 0 Water/brine/gas 9.20 8.35 9.50 UG1 4,756.0 50 Water/brine/gas 9.20 8.35 9.50 WS2 5,240.0 50 Water/brine 8.45 8.35 9.00 WS1 5,504.0 50 Water/brine 8.45 8.35 9.00 CM3 5,729.0 50 8.70 8.35 9.10 g', V71 .;. r.-, CM2 6,205.0 100 9.00 8.35 9.60 .ororil he Ad CM1 7,015.0 100 9.60 8.35 10.50 THRZ 7,303.0 50 9.60 9.60 10.50 BHRZ 7,535.0 50 9.60 9.60 . 9.90 TKNG(TJG) 7,566.0 50 9.60 9.60 9.90 TJF 7,944.0 50 9.60 9.60 9.90 TJE 8,039.0 50 9.60 9.60 9.90 TJD 8,337.0 50 9.60 9.60 9.90 TJC 8,492.0 50 9.60 9.60 9.90 TJB 8,608.0 35 9.60 9.60 9.90 /� „ TSGR 8,765.0 35 Oil 7.06 6.70 7.70 -- S- p��yy // .lo TSHU 8,786.0 35 7.06 6.70 9.90p� TSAD 8,861.0 35 Water/Oil 7.06 6.70 7.60 �t)� • Invert Pt 8,917.0 35 7.06 6.70 7.60 rZ6+.(.I • TSAD 8,848.0 35 Water/Oil 7.06 6.70 7.60 TSHU 8,792.0 35 7.06 6.70 9.90 ✓ no. q •!3 Casing/Tubing Program Hole Liner/Tbg Lb/Ft Grade Thread Burst Collapse Length Top Bottom Size O.D. (psi) (psi) (ft) MD/TVD MD/TVD 8-'/2" 7" 26 L-80 VT HC 7240 5410 7060 3700'/3595' 10760'/8765' (-200' lap) 6-1/8" 4 'A" 12.6 130r-80 Hydril 521 8430 7500 6344 10500'/8566' 16844'/8767' (-y260' lap) 10505'/8569' Tubing 4 '/z" 12.6 13Cr-80 VT 8430 7500 10505 surface (-5' into prod. liner TBS) Mud Program Intermediate Mud Properties: LSND I 8-1/2" hole section Depth Interval Density(ppg) PV(cp) YP API FL HTHP FL MBT PH 3900'-4450' 9.1 10-18 18-28 6.0-8.0 NA <20 9.0-10.0 KOP to UG4 4450'-8400' 9 4 10-18 18-28 6.0-8.0 N/C <20 9.0-10.0 UG4 to CM2 8400'-8800' 9.7 10-18 18-28 6.0-8.0 N/A <20 9.0-10.0 CM2 - CM1 • 8800'-9050' 10.0 10-18 18-28 6.0-8.0 N/C <20 9.0-10.0 CM1 to THRZ 9050' 10760' 10.9 10-22 18-28 4.0-6.0 <10 <25 9.0-10.0 THRZ to TSAG Production Mud Properties: Reservoir Drill-in Fluid 6-1/8" hole section Depth Interval Density (ppg) PV YP LSVR API Fl pH MBT 10760'-16,844' 8.5-8.6 < 12 10- 20 >15,000 <10 8.0 -9.5 <4 Logging Program 8-1/2" Intermediate: Sample Catchers-as required by Geology Drilling: Dir/ GR/at-bit-GR/ Res/Caliper Open Hole: None Cased Hole: Cement Bond Log 6-1/8" Production: Sample Catchers-as required by Geology Drilling: Dir/GR/at-bit-GR/Res/ Neu/Azim. Den/Azim. Caliper/ Resistivity micro-imaging Open Hole: None Cased Hole: None Cement Program Casing Size 7" 26#, L-80 Intermediate Liner Basis: Lead: 1000' of annular length above the shoe + 40% excess Lead TOC at-1500' above shoe at-9,260' MD Tail: 500' of annular length + 40% excess + 80' shoe track Tail TOC at-500' above shoe at-10,260' MD. Total Cement Spacer 25 bbls of Viscosified Spacer weighted to 11.0 ppg (Mud Push II) Volume: Lead 31 bbls, 175 cuft, 109 si 12.0 lb/gal LiteCrete + 40% extra- 1.61 cuft/sk Tail 19 bbls, 106 cuft, 1 s s 5.8 lb/gal Class G + adds- 1.17 cuft/sk r Temp BHST=222° F, BHCT TBD by Schlumberger Casing Size 4.5" 12.6#, 13Cr-80 Hydril 521 Production Liner Basis: Lead: None Tail: Volume of open hole from ECP depth to 260' of liner lap + 40% excess Tail TOC: 10,500' MD (cement at TOL w/excess to be circulated out) Total Cement Spacer 25 bbls of Viscosified weighted spacer(Mud Push II) Volume: Lead N/A Tail 29.3 bbls, 164 cuft\141.5 sks(15.8 lb/gal Class G + GasBlok + adds- 1.17 cuft/sk Temp BHST=222° F, BHCT TBD by Schlumberger Surface and Anti-Collision Issues Surface Shut-in Wells: There are no wells requiring surface shut-in in order to move onto the well. At surface, the Y-12 well is —33' to the West of Y-26. Close Approach Shut-in Wells: Due to close approach to Y-26 at —200' MD from sidetrack kick-off point of Y-13A. Y-26 will have a tested plug in the production tubing at 10,337' for pressure isolation from perforations. Hydrogen Sulfide Y-Pad is considered an H2S site. Recent H2S data from the pad is as follows: (5) H2S Data Well Name H2S Level Reading Date Parent Well (if sidetrack) Y-13 20 ppm 9/13/2006 #1 Closest SHL Well H2S Level Y-26A 12 ppm 2/17/2012 #2 Closest SHL Well H2S Level Y-19 52 ppm 8/14/2010 #1 Closest BHL Well H2S Level Y-12 10 ppm 12/15/2000 #2 Closest BHL Well H2S Level Y-34A 35 ppm 5/15/2007 #3 Closest BHL Well H2S Level Y-11A N/A - injector #4 Closest BHL Well H2S Level A-05A N/A - injector Max. Recorded H2S on Pad/Facility Y-33 350 ppm 2/23/2011 Y-pad is considered an H2S facility. Other Relevant H2S Data (H2S alarms from rigs, etc.) Faults Fault#1 -Shublik 11,665 -8,816 15' DTE Fault#2-Sag 14,640 -8,787 7' DTW Fault#3-Sag 16,080 -8,773 25' DTW Comments Fault predictions based on WP04 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)f/guidance. Well Control Well control equipment consisting of 5,000 psi working pressure pipe rams (2), blind/shear rams, and annular preventer will be installed and are capable of handling the maximum potential surface pressures. Based upon calculations below, BOP equipment will be tested to 3,500 psi. BOP regular test frequency for Y-13A will be 14 days during drilling phase and 7 days during de-completion and surface casing work. Intermediate Interval Maximum anticipated BHP 3218 psi © 8765' TVDSS (7.06 ppg EMW) • Maximum surface pressure 2341 psi (.10 psi/ft gas gradient to surface) • Kick tolerance 140 bbls with 11.55 ppg EMW with planned 10.8 ppg mud (Minimum 11.55 ppg FIT needed for ECD management) Planned BOP test pressure Rams test to 3,500 psi/250 psi. Annular test to 3,500 psi/250 psi 9-5/8" Casing Test 17" Casing 3500 psi surface pressure Integrity Test—8-1/2" hole FIT after drilling 20'from middle of window - 7" Casing VBR/Relevant Fixed Rams will be changed to 7" rams for 7" drilling liner Production Interval Maximum anticipated BHP 3218 psi © 8765' TVDSS (7.07 ppg EMW) Maximum surface pressure 2341 psi (.10 psi/ft gas gradient to surface) Infinite with 9.0 ppg EMW with planned 8.6 ppg mud Kick tolerance (9.0 ppg FIT needed for ECD management) Planned BOP test pressure Rams test to 3,500 psi/250 psi. Annular test to 3,500 psi/250 psi Integrity Test—6-1/8" hole FIT after drilling 20' of new hole - 4-1/2" Production Liner 3500 psi surface pressure Planned completion fluids 8.5 ppg Seawater/6.8 ppg Diesel Existing Y-13 Well TREE= 4"C1W SAFETY NOTES: ""TIGHT SPOT @ SEAL ASSY@ WELLHEAD= GRAY Y-13 9773'. CAM CO SLIDING SLV HAS A M IN ID OF 3.75" ACTUATOR= AXEL SON RENDERING THE X8XNNPPLESUSELESS. ID OF SS KB.BEV= 85.54' MAY BE DAMAGED. BF ELEV= 51.04' KOP= 3200' I 2042' —I4-112 OTIS SSSV NP.D=3.813" I Max Angle= 48@6500' (-Datum M]- 10438' Datum TVD= 8800'SS 2608' 9-5/8"DV PKR 113-3/8"CSG.72#.L-80.D=12.347" H 2636' f GAS LFT MANDRELS ST MD TVD DEV TYPE VLV LATCH FORT DATE 7 3002 2916 6 CAM DOME RK 16 6 5168 4793 39 CAM DOME IRK 16 5 6893 6010 46 CAM DONE RK 16 4 7602 6524 42 CAM DMY RK 0 3 8230 7006 38 GAM DONE RK 16 2 8743 7421 34 CAM DMY RK 0 Minimum ID =3.725"@ 9897' 1 9212 7806 35 CAM DMY RK 0 02/04/99 4-1/2"OTIS XN NIPPLE I I I 9713' I—CAWO SLIDNG SLEEVE D=3.75" I 9773' LI TBG SEAL SLEEVE I =5 I 9779' I—9-518"x 4-1/2"BKR PKR D=4.00" 9830' H4-1/2"WFD SC WRP j 1 2/301 09 1 ITOP OF 7"LNR I-I 9853' ' ' I 9854' .44-1/2"OTIS X NP.ID=3.813" ' I 9897' .44-1:2"OTtS XN NP ID=3.725" 4-112"TBG.12.68.L-80..0152 bpf.ID=3 958" 9937' 9939' 44-1,2"SHEAROUT SUB I 9947" H EMD TT LOGGED 03;21/99 19-5/8"CSG.47#.L-80.ID=8.681" H 10357' I--, I. I PERFORATON SLIMAA RY I 10509' —I MA RKER JOM I REF LOG:BRCS ON 08116/81 A NGL E AT TOP PERF:35 6 10385' I Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE ' 3-318" 4 10385-10413 0 08127193 2-518" 12 10502-10522 0 02124191 2-518" 10 10522-10552 0 02124/91 2-718" 4 10552-10554 S 01/21191 2-718" 4 10558-10566 S 01/21/91 2-718" 4 10576-10616 S 01121191 3-318" 6 10623-10638 S 01121.91 PBTD 11240' 111SSN. 17"LNR 29#.L-80..0371 bpf.D=6.184" H 11288' ...•4•.A4•4...AV Pre-rig Proposal in• ittE 1D- SF4LY S4fETY0IE7"'151692 WOW a ALAI!YN ACSULTOR- AXSSON Y-13 Pre-rig 97S_ChM=e"lSLYSSAMDOI5]5- KB_22- M,; S®®116TES:s=MIRES USELESS_ 430F SS eF_HEV- 5191• - _ 11911190011141221 133P- 32002 W MAso!- sfp4svStar 1-1412•cos sew mi.D-IMF ono•SD- 11143fD11•mND- Wis =-- NW -is-sor'W P1CR 13-019 CS G.3Z#.L-04D-12343- -{ NSF GAS LFILEPC 3 Jetoat/filly Mf —•.- SI ID D WD M 7/PE 1/LV LA1C11 PORI 411E 1 3412 25115 4 CAM DOSE RIK 14 1 511511 913 35 CAM DOSE 1410 14 5 4B13 940 44 C11Y COWS fa( 115 Top of cement NOW IAD I 1i02 4324 42 CAL1 MN ILK D 1 4,5' r1[}— 3 1Q 3D lmi 31 Cali 004E 11K 14 2 NO 7421 34 CAM CAW Fac B 1 5212 7Di 35 OIW 11W RK E. 02Alls Minimum ID=3.725'@ MT 4-1I7 O77S XN NDPLE - 5713' -CALICO SLUM SLEEVE D-3.75- -,/.....,,,' 9773 _J-B s81L SLEEVE ^.�.. 977Y -14-1541-1 4-1w mowG(i 4-3-i.DQ' ,,,_,*(y",".; .0----I511317 H4-1Q-1WOSC (12011111) 10P OF 7"MR SI r r ' 3353 _14-11r minx mi D-1313 1 w�F :: { - 333T _4-u7'o133o+!P.D-33a- 1 Q' 4 G.1273L�. . .0152INCD-113- -I MIT I i SS3S' LI 4-1 er si-eu msm r smr - 2111371 1.0 50EDD 121011 1 -7__ 4-119 C36.47#.lam,D-&15111- - 1035E — It. 5- PEIi#1R1110rl i.,- REF LCIS W O11S11531 '` M LEAN10PP@F.35ch 1 m' NM We rim Plvrrmr4 m Tor 224121152 para a Y FEZE SPF SIEFRAL ^. k.<-. # �R ORM .;.p,,,, , 3-air I 107155-10413 0 OQI7S .. 2-5/1" 12 10®2-1092 0 1924/11 ' 2— 10 11522 06 2-112 0 W24311 ,' 233 0154- ' 4 117-10634 S 0021121 , - 233- 4 1 0651-10644 S 0512131 y 1 //. 2-73- 4 10674-10415 S 01121111 - 3 5 10@3-10430 S 002121 /'i Pero -{ 113 -M►�i�?i4i4.444 44 +4ib�i����41 i 1.MM Elf.L--IQ.7871 6>R1.D-4.1614- H 11�' arrrur Proposed RST TRS 4"CNV Y-1 3A YVE1.Li-EAD= GRAY SAFETY NOTES: ACTLiATOR= AXELSON KB.ELEV= 85.54' mposed R S T BF.ELEV= 51.04' KOP= 3200' Max Angle= 48 @ 6500' 0 II. I 2097' H4-1/2"SSSV NP,ID=xx" I Datum me= 10436' Datum TVD= 8800'SS I gap ' ""`> I 2550' H LUBR VALVE(2 control lines) I a 2608' 9-5/8'DV PKR 133/8"CSG,728,L-80,ID=12.34T --{ 2636' GAS LFT MANDRELS ] I 3700' HTOP OFT LINER ST 1.113 TVD DEV TYPE VLV tATI -I PORT DATE -- 6 COP J 5 •. 9-5/8"whipstock set at 3900i 4 1••4. 3 ,!i••••.•.•.•••••0 j•j •Q j•• •••••• v. 2 . ,IN 1 A••t•,•'•,•�•�•�•'•,•'•'•• ° 4•11•'•. 44.+•• Y 13 59 @ 4838' 9-5/S"CSG,478,L-80,13=8.861" --I 10357' SL.B SARHIRE OHP Gauge H ?? IIIP ' I 1 I--I4-1.2"X NP ID= 3.813" I Minimum ID = Egr—' 1 10300' H7"X 4-1 2'PKR I 111 , 1 1--14-1'2'XNIP ID=3813" 8-1/2"hole 4-1/7 TBG,12.88,13Cr-60. 0152 bpi,ID=3.958W -" 10500' I s I--14-1.2"TUBING TA'L I TOP OF 4-1/7 L NR I— IN r LNR,268,L-80 H 10760' A 40° 105az-10.8ppg 7" @ TSGR F$RFORAT10N SLU#RY TSAR 150L REF LOG: ANGLE AT TOP PERF: Port Collar Note:Refer to Production DB for historical perf data ° SIZE SPF INTERVAL OpniSgz PATE r 1 " 102I "11800 I--IEcP 1 BSGR r I r A I 1_.I i 1 ` ' ' 1. 6-1/8"hole I I 1 l +chem]_.altracez5 t- I I I '- I4-1/7'126#,13Cr-80 H -16844 -90D ,,/ Y 13A it bp 0 Y-13A(P4)Proposal Report Schlumberger (Non-Def Plan) Report DMe: June 20.2012-03:58 PM Survey/DLS Computation: Minimum Curvature/Lubineki - CIient: BP Vertical Section Azimuth: 90.000°(True North) - Field: Prudhoe Bay Unit WOAVertical Origin: 0.000 ft,0.000 Structure I Slot: V-PAD/V-13 �'b"' ����y TVD ReferenceSection DD Reference atum: : 89.800 R aboveftMSL B Well: V-13 Borehole: V-13A �g` Seabed I Ground Elevation: 49.000 ft above MSL ° UWI I APIA: Unknown/Unknown Magnetic Declination: 20.503° Survey Nampe: V-134(P4) Total Field Strength: 57642.874 nT Survey Date: June 12,2012 Magnetic Dip Angle: 81.012° Tort 1 AHD/DDI I ERD Ratio: 278.562°/10732.217 ft/6.744/1.191 Declination Dab: December 31,2012 Coordinate Reference System: NAD27 Alaska State Plane.Zone 04.US Feet Magnetic Declination Model: BGGM 2011 Location Lot I Long: N 70°18'2.91389-,W 148°49'59.52075" North Reference: True North Location Grid NIP V/X: N 5948788.510 ftUS.E 844290.110 PLUS Grid Convergence Used: 0.000° CRS Grid Convergence Angle: 1.09830154° Total Cort Meg North->Tme 20.583° North: Grid Scale Factor: 0.99992385 Local Coord Referenced To: Well Head Comments MD Inel Adm True TVDSS TVD VSEC NS EW TF DLS DlrselbrMl Northing Dating (B) (°) r) (ft) on on on on (') (11898)Difficulty Index (BUS) (BUS) Tie-In Survey 3879.30 24.32 281.25 3757.01 3848.81 -220.88 -38.31 •220.66 3038 2.41 3.88 594872398 844070.04 Top of Whipstock 390000 24.97 281.44 3775.83 3885.83 -229.40 -89.81 -229.40 1501 3.18 3.91 5948722.51 544081.53 Base of Whipstock 3918.00 23.33 259.02 3790.43 3880.23 -235.85 -40.72 -235.85 HS 12.00 3.94 5948721.28 844055.10 Curve 4/100 3929.00 2333 258.02 3802.36 3892.16 -240.90 -41.70 -240.90 11.481 0.00 3.95 5948720.21 644050.07 4000.00 28.12 257.73 3888.85 3956.85 -289.98 -47.70 -285.98 10.311 4.00 4.03 5948713.85 844021.11 4100.00 30.06 258.31 3955.05 4044.85 -315.84 -58.31 -315.84 5.051 4.00 4.14 5948702.16 84397547 420000 3402 255.18 4039.80 4129.80 -367.24 -71.40 -387.24 8.11 4.00 425 5948888.09 643924.33 430000 37.98 254.27 4120.69 4210.49 -423.92 -88.90 -423.92 7.361 4.00 435 5948871.51 643867.96 4400.00 41.95 253.50 419732 4287.12 -485.82 -104.74 -485.62 6.771. 4.00 4.44 5848852.49 843808.83 4500.00 45.53 252.85 4289.31 435911 -552.02 -124.84 -552.02 8.31 4.00 4.53 59481131.12 643740.63 4800.00 49.90 252.27 4336.32 4428.12 -622.80 -14709 -62280 5.911 4.00 4.82 5948807.52 843670.29 4700.00 53.88 251.78 4398.03 4487.83 -097.62 -171.38 -097.82 5.81 4.00 4.70 5948581.80 643595.98 4800.00 57.88 251.30 4454.12 4543.92 -778.12 •197.61 •776.12 5.341 4.00 4.77 5548554.08 643517.98 End Curve 4838.20 59.39 251.14 4474.01 4563.81 -807.00 -208.11 -80700 HS 4.00 4.80 5948542.99 843487.31 4900.00 59.39 251.14 4505.48 4595.28 457.33 -225.30 -857.33 HS 0.00 4.83 5948524.84 843437.33 5000.00 59.39 251.14 455640 4648.20 -938.77 -253.13 -938.77 HS 0.00 4.87 5948495.46 643356.44 5100.00 59.39 251.14 4607.33 4897.13 •1020.21 -280.95 -1020.21 HS 0.00 4.91 5948486.08 843275.55 5200.00 59.39 251.14 4658.25 4748.05 •1101.85 -308.77 -1101.85 HS 0.00 4.95 59484311.70 643194.87 5300.00 59.39 251.14 4709.18 4798.98 -1183.09 -338.80 -1183.09 HS 0.00 4.98 5948407.33 643113.78 5400.00 5939 251.14 4780.10 4849.90 -1284.53 -36442 -1284.53 HS 0.00 5.01 5948377.95 643032.90 5500.00 59.39 251.14 4811.03 4900.83 -1345.97 -392.24 -1345.97 HS 0.00 5.04 5948348.57 642952.01 5600.00 59.39 251.14 4861.96 4951.78 -1427.41 -420.08 •1427.41 HS 0.00 5.07 5948319.20 642871.13 5700.00 5939 251.14 4912.88 5002.68 •1508.85 -447.89 -1508.85 HS 0.00 5.10 5948289.82 842790.24 5800.00 5939 251.14 4963.81 5053.61 -1590.29 -475.71 •1590.29 HS 0.00 5.13 5948260.44 842709.38 5900.00 59.39 251.14 5014.73 5104.53 -1671.73 -503.53 •1671.73 HS 0.00 5.15 5948231.07 842828.47 6000.00 59.39 251.14 5065.66 5155.48 -1753.17 -531.38 -1753.17 HS 0.00 5.17 5948201.69 642547.59 6100.00 59.35 251.14 5116.58 5206.38 -1834.61 -559.18 -183461 HS 0.00 5.20 5948172.31 842488.70 6200.00 59.39 251.14 5167.51 5257.31 -1918.05 •587.00 •1916.05 HS 0.00 5.22 5948142.94 642385.82 8300.00 59.39 251.14 521843 5308.23 -1997.49 -014.83 -1997.49 HS 0.00 5.24 5948113.58 642304.93 6400.00 59.39 251.14 5269.38 5359.16 -2078.93 -042.85 -207893 HS 0.00 5.28 5948084.18 642224.04 Curve4/100 6411.04 59.39 251.14 5274.98 5384.78 -2087.92 -845.72 -2087.82 58.961 0.00 5.26 5948080.94 642215.11 6500.00 56.07 249.80 5322.47 5412.27 •2158.76 -870.97 -2158.78 58.141 4.00 5.30 5948054.34 842144.78 6800.00 52.38 247.72 5380.93 5470.73 -2234.32 -700.46 -2234.32 57.041 4.00 5.34 5948023.41 642069.80 6700.00 48.71 245.64 5444.47 5534.27 -2305.22 -730.98 -2305.22 55.721 4.00 5.38 5947991.54 841999.51 6800.00 45.09 243.32 5512.79 5802.59 •2371.11 -782.39 -2371.11 54.131 4.00 5.41 5947958.88 641934.23 6900.00 41.52 240.89 5585.58 5675.36 -2431.67 -794.52 -2431.87 52.221 4.00 5.45 5947925.59 641874.30 7000.00 36.01 237.66 5882.43 575223 -2488.81 -827.23 -2488.81 49.891 4.00 5.48 5947891.84 641820.00 7100.00 34.60 234.13 5743.01 5832.81 -2535.66 -860.35 -2535.88 47.041 4.00 5.50 5947857.79 841771.60 7209.00 31.31 229.94 5828.91 5918.71 -2578.58 -893.72 -2578.58 43.521 4.00 5.53 5947823.80 641729.34 7300.00 28.19 22491 5913.73 6003.53 -2615.16 427.19 -2615.18 39.151 4.00 5.55 5947789.44 84169341 7400.00 25.29 218.78 6003.05 6092.85 -2845.22 -960.58 -2845.22 33.871 4.00 5.58 5947755.48 641663.99 7500.00 22.70 211.20 8094.42 8184.22 -2668.82 -993.74 -2868.82 128.81 4.00 5.60 5947721.88 641641.24 7600.00 20.54 20210 618741 6277.21 -2885.24 -1026.50 -2885.24 18.281 4.00 5.62 5047688.81 641625.25 7700.00 18.98 191.20 6281.55 8371.35 -2895.00 -1058.70 -2895.00 08.021 4.00 5.84 5947856.43 641616.11 7800.00 18.11 178.88 6376.40 6466.20 -2697.85 -1090.19 -2697.85 96.331 4.00 5.85 5947624.89 641613.88 7900.00 18.10 165.99 6471.49 6561.29 -2893.79 -1120.82 •2693.75 84.071 4.00 5.67 5947594.38 641818.51 8000.00 18.92 153.61 6566.35 0656.15 -2682.82 •1150.42 -2682.82 72.351 4.00 5.69 5947564.97 041630.04 8100.00 20.48 142.68 6660.53 6750.33 -2885.01 -1178.87 •2665.01 82.031 4.00 5.71 5947536.87 641648.39 8200.00 22.62 133.48 6753.58 6843.38 -2640.43 -1206.02 •2640.43 53.46L 4.00 5.72 5947510.20 641673.48 8300.00 25.20 125.89 6845.00 8934.80 -2609.22 -1231.74 -2609.22 46.541 4.00 5.74 5947485.09 841705.18 8400.00 29.09 11972 6934.89 7024.19 -2571.52 •1255.90 -2571.52 41.021 4.00 5.76 5547461.86 641743.34 8500.00 3121 114.65 7021.30 7111.10 -2527.51 •1278.38 -2527.51 38.611 4.00 5.78 5047440.02 641787.76 8600.00 34.49 110.44 7105.31 7195.11 -2477.41 -1299.08 -2477.41 33.07L 4.00 5.79 5047420.28 641838.24 8700.00 3790 106.89 7188.01 7275.81 •2421.47 -1317.90 -2421.47 30.21 4.00 5.81 5947402.54 641894.53 End Curve 8760.31 40.00 105.00 7232.91 7322.71 -2385.02 •1328.30 -2385.02 HS 4.00 5.82 5947392.84 841931.18 8800.00 40.00 105.00 7283.31 7353.11 -2360.37 -1334.90 -2360.37 HS 0.00 5.83 5947388.72 641955.94 8900.00 40.00 105.00 7389.92 7429.72 -2298.29 -1351.54 -2298.29 HS 0.00 5.84 5947371.27 642018.33 9000.00 40.00 105.00 7418.52 7506.32 -2238.20 -1368.18 -2236.20 HS 0.00 5.84 5947355.83 642080.72 9100.00 40.00 105.00 7493.13 7582.03 •2174.11 -1384.81 -2174.11 HS 0.00 5.85 5947340.39 642143.11 9200.00 40.00 105.00 7569.73 7058.53 -2112.02 -1401.45 -2112.02 HS 0.00 5.88 5947324.95 642205.50 9300.00 40.00 105.00 7648.34 7738.14 -2049.93 -1418.09 -2049.93 HS 0.00 5.87 5947309.50 642267.90 9400.00 40.00 105.00 7722.94 7812.74 -1987.84 -1434.72 -1987.84 HS 0.00 5.88 5047294.06 642330.29 5500.00 40.00 105.00 7799.55 7889.35 .1925.75 -1451.38 -1925.75 HS 0.00 5.88 5947278.82 642392.88 96000.00 40.00 105.00 7876.15 796595 -1863.67 -1488.00 -1863.67 HS 0.00 5.89 5947263.18 642455.07 9700.00 4000 105.00 7952.75 8042.55 -1801.58 -1484.83 -1801.58 HS 0.00 5.90 5047247.74 642517.46 9800.00 40.00 105.00 8029.36 8119.16 -1739.49 -150127 -1789.49 HS 0.00 5.91 5047232.29 642579.85 990000 40.00 105.00 8105.96 8155.78 •1877.40 •1517.91 -1677.40 HS 000 5.91 5947216.85 842842.24 10000.00 40.00 105.00 8182.57 8272.37 -1815.31 -1534.54 -1015.31 HS 0.00 5.92 5947201.41 642704.83 10100.00 40.00 105.00 8259.17 8348.57 -1553.22 -1551.18 -155322 HS 0.00 5.93 5947185.97 642787.02 10200.00 4000 105.00 8335.78 8425.58 •1491.13 -1587.82 -1491.13 HS 000 5.93 5947170.52 642825.42 10300.00 40.00 105.00 8412.38 8502.18 •1429.05 -1584.45 -1429.05 HS 0.00 5.94 5947155.08 842891.81 10400.00 40.00 105.00 8488.95 8578.79 •1366.96 -1601.09 -1360.96 HS 0.00 5.95 5947139.84 642954.20 10500.00 40.00 105.00 8565.59 8655.39 -1304.87 -1617.73 -1304.87 HS 0.00 5.95 5947124.20 643016.59 10600.00 4000 105.00 8642.15 8731.59 •1242.78 •1834.36 -1242.78 HS 000 5.96 5947108.76 84307698 10700.00 40.00 105.00 8718.80 8808.80 -1180.89 -1651.00 -1180.89 HS 0.00 5.97 5947093.31 843141.37 10760.31 40.00 105.00 8785.00 8854.80 -1143.25 -1081.03 -1143.25 HS 0.00 5.97 5947084.00 643179.00 10780.31 40.00 105.00 8780.32 8870.12 -1130.83 -1684.36 -1130.83 12.911 0.00 5.07 5847080.91 643191.48 Drilling Office 2.5.1100.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-13\Y-13A\Y-13A(P4) 6/20/2012 4:00 PM Page 1 of 3 Comments MD Incl Axim In.. TVDSS TVD VSEL NS EW TF DLS Directional Northing Ending (R) C) C) (ft) (R) (R) (R) (R) Cl (°/10011)Difficulty Index (RUM (6685) 10800.00 42.88 104.03 8795.08 8884.88 -1118.21 -1887.62 -1118.21 12.191 15.00 5.98 5947077.69 643204.15 10900.00 57.61 100.32 8858.86 8948.88 -1043.24 -1683.53 -1043.24 9.791 15.00 6.03 5947063.43 643279.42 11000.00 72.42 87.67 8900.88 8990.78 -953.95 -1697.54 -95395 8.871 15.00 8.07 5947051.13 643388.95 11100.00 87.26 95.44 8918.57 9008.37 -858.43 -1708.70 -858.43 8.271 15.00 6.11 5947041.84 843468.85 11198.94 101.65 93.32 8911.08 900088 -76032 -1716.08 -780.32 HS 15.00 6.15 5947038.31 843562.88 11200.00 101.85 93.32 8910.44 9000.24 -757.34 -1718.25 -757.34 HS 0.00 8.18 5947038.19 643585.87 11300.00 101.65 83.32 8890.25 8980.05 -859.56 -1721.93 -659.58 HS 0.00 6.17 5947032.38 643863.73 11400.00 101.85 93.32 8870.08 8959.88 -581.79 -1727.81 -561.79 HS 0.00 8.18 5947028.58 843761,58 11500.00 101.85 93.32 8849.88 898.66 +164.01 -1733.29 -464.01 HS 0.00 6.19 5947024.78 843859.44 11600.00 101.65 93.32 882987 8919.47 -386.23 -1738.97 -368.23 HS 0.00 8.20 5847020.98 843957.30 11700.00 101.65 93.32 8809,48 8898.28 -268.46 -1744.65 -268.48 HS 0.00 8.21 5947017.17 644055.18 11754.36 101.65 83.32 8798.50 8888.8 -215.31 -1747.74 -215.31 144.071 0.00 8.22 5847015.10 644108.36 11800.00 97.94 80.62 8790.73 8880.53 -170.37 -1749.28 -170.37 144.531 10.00 8.23 5947014.42 844153.31 11897.21 90.00 85.00 8784.00 8873.80 -73.58 -1745.56 -73.59 94.731 10.00 8.28 5947020.00 644250.00 11900.00 89.99 84.89 8784.00 8873.80 -70.81 -1745.31 -70.81 94.731 4.00 8.28 5947020.30 644252.77 12000.00 89.66 80.80 8784.30 887410 28.41 -1732.95 28.41 94.721 4.00 8.28 5947034.56 644351.72 12100.00 89.33 78.92 8785.18 8874.98 128.51 -1713.71 128.51 94.881 4.00 8.30 5947055.67 644449.44 12111.83 8929 7644 8785.32 8875.12 138.02 -1710.99 138.02 HS 4.00 6.30 5947058.61 644460.89 12200.00 89.29 76.44 8788.41 8876.21 223.73 -1690.32 223.73 HS 0.00 8.31 5947080.92 844546.18 12214.83 8929 76.44 8788.59 8878.39 238.15 -1886.85 238.15 74.58R 0.00 6.31 5947084.67 644560.53 12281.11 90.00 79.00 878700 8876.80 302.91 -1672.75 302.91 79.56R 4.00 6.32 5947100.00 844625.00 12300.00 90.07 7937 8786.99 8876.79 321.46 -1069.21 32146 79.560 2.00 8.33 5947103.90 644643.48 12400.00 90.43 81.34 8788.55 8676.35 420.04 -1652.46 420.04 79.57R 2.00 6.34 5947122.54 644741.71 12500.00 90.79 83.31 8785.49 8875.28 519.13 -1669.10 519.13 79.5BR 2.00 6.35 5947137.79 644840.52 12532.03 90.91 83.94 8785.01 8874.81 550.86 -168.54 550.96 HS 2.00 6.38 5947141.96 644872.27 12800.00 90.91 83.94 8783.93 8873.73 818.54 -1828.38 818.54 HS 0.00 8.37 594715043 64493970 12700.00 90.91 83.94 8782.35 8872.15 717.97 -1617.80 717.97 HS 0.00 6.38 5947162.90 64503590 12800.00 90.91 83.94 8780.77 887057 817.40 -1807.23 817.40 HS 0.00 8.69 5947175.38 645138.10 12900.00 90.91 83.94 8779.18 8888.98 918.83 -1598.67 918.83 HS 0.00 6.40 5947187.83 645237.8 12981.28 9091 83.94 8777.89 8887.69 997.62 -1588.09 99792 113.73R 0.00 6.40 5947197.98 645317.01 13000.00 90.76 84.28 8777.62 8687.42 1016.28 -1588.16 1018.26 113.73R 2.00 8.41 5947200.24 645336.50 13094.02 90.00 88.00 8777.00 8868.80 1109.93 -1578.20 1109.03 105.97R 2.00 642 5947210.00 64548.00 13100.00 69.97 86.12 8777.00 8868.80 1115.90 -1577.79 1115.90 105.979 2.00 6.42 5947210.53 645435.96 13200.00 89.42 88.04 8777.54 8867.34 1215.78 -1572.69 1215.76 105.969 200 6.43 5047217.54 645535.70 13258.08 89.11 89.12 8778.26 8888.06 1271.82 -1571.29 1271.82 HS 2.00 6.44 5947220.00 1345591.71 1380.00 89.11 89.12 8778.94 8888.74 1315.73 -1570.62 1315.73 HS 0.00 8.44 5847221.52 645835.60 13400.00 89.11 89.12 8780.50 8870.30 1415.71 -1589.07 1415.71 HS 0.00 6.45 5947224.98 645735.52 13500.00 89.11 89.12 8782.06 8871.88 1515.88 -1587.53 1515.88 HS 0.00 6.46 5947228.44 845835.44 13600.00 89.11 89.12 8783.81 8873.41 1615.68 -1565.99 1615.88 HS 0.00 6.47 5947231.90 645935.36 13682.58 89.11 89.12 8784.90 8874,70 1898.22 -1564.72 1608.22 6.581 0.00 8.48 5947234.75 648017.88 1889.71 89.25 89.10 8785.00 8874.80 1705.8 -1584.61 1705.35 62.291 2.00 8.48 5947235.00 648025.00 13700.00 89.35 88.92 8785.13 8874,93 1715.84 -1564.43 1715.64 82.281 2.00 6.48 594728.8 848035.28 13704.59 89.39 88.84 8785.18 887498 1720.22 -1564.34 1720.22 HS 2.00 8.48 594728.55 648039.87 1380000 8939 88.84 8788.20 8876.00 181561 -1562.40 1815.81 HS 0.00 6.40 594728.32 64813519 13000.00 89.39 88.84 8787.28 8877.08 1915.58 -1560.37 1915.58 HS 0.00 6.50 5917243.26 848235.10 1400000 8939 88.84 8788.33 8878.13 2015.56 -1558.34 2015.58 HS 0.00 6.51 5917247.21 648335.01 14048.38 89.39 88.84 8788.85 8878.65 2083.92 -1557.36 206392 18.351 0.00 6.51 5947249.12 6488334 14070.08 89.80 88.70 8789.00 8878.80 2085.80 -1556.89 2085.60 14.481 2.00 8.51 5997250.00 646405.00 14080.94 90.20 88.60 8780.00 8878.80 2106.47 -1556.40 2108.47 HS 2.00 8.52 5947250.69 848425.88 14100.00 90.20 88.60 8788.97 8878.77 2115.53 -1558.18 2115.53 HS 0.00 6.52 594725129 64843491 14200.00 90.20 88.60 8788.81 8878.41 2215.50 -1553.73 2215.50 HS 0.00 8.53 5947255.85 648534.81 14300.00 90.20 88.60 8788.25 8878.05 231547 -1551.27 2315.47 HS 0.00 6.53 5947280.02 648634.70 14400.00 90.20 88.60 8787.90 8877.70 241544 -1548.82 241544 HS 0.00 6.54 5997264.39 646734.60 14500.00 90.20 88.80 8787.54 8877.34 2515.41 -1546.37 2515.41 HS 0.00 6.55 5947268.75 846834.50 14800.00 9020 88.80 8787.18 8878.98 2815.8 -154392 2815.8 HS 0.00 8.56 5947273.12 846934.8 14819.98 90.20 88.80 8787.11 8876.91 288.8 -1543.43 288.8 79.25R 0.00 6.56 5947273.99 648954.35 14845.85 90.30 69.10 8787.00 8876.80 2881.02 -1542.92 2681.02 78.060 2.00 6.56 5947275.00 646980.00 14871.8 90.41 89.80 8788.84 8876.84 2686.75 -1542.63 2688.75 HS 2.00 8.57 5947275.78 647005.72 14700.00 00.41 88.80 8788.64 8876.44 2715.8 -1542.43 2715.38 HS 0.00 6.57 5947276.53 847034.32 14800.00 90.41 89.80 8785.83 8875,73 2815.8 -1541.74 2815.8 HS 0.00 6.58 5947279.14 847134.28 14900.00 90.41 89.80 8785.22 8875.02 2915.35 -1541.04 2915.5 HS 0.00 6.58 5947281.75 847234.23 15000.00 90.41 89.80 8784.51 8874.31 3015.35 -1540.35 815.8 HS 0.00 6.59 5947284.36 847334.19 15100.00 00.41 88.80 8783.80 8873.80 3115.34 -1539.66 3115.34 HS 0.00 6.80 5947286.96 847434.14 15200.00 90.41 89.80 8783.09 8872.80 3215.34 -1538.97 3215.34 HS 0.00 6.61 5947289.57 647534.10 15203.68 9041 8960 8783.08 8872.86 3219.21 -158.94 321921 149.111 0.00 6.61 5947289.87 647537.98 15215.91 90.20 89.48 8783.00 8872.80 3231.24 -1538.84 3231.24 148.91 2.00 6.81 594729000 647550.00 15237.08 69.85 89.25 8782.99 8872.79 325240 -158.61 3252.40 HS 2.00 6.81 5947200.64 847571.14 1580.00 89.85 89.25 8783.18 8872.98 3315.33 -1537.78 3315.33 HS 0.00 6.62 5947292.87 847834.04 15400.00 89,85 89.25 8783.43 8873.23 341532 -158.47 3415.32 HS 0.00 6.62 5947205.90 647733.98 15500.00 89.85 89.25 878370 8873.50 3515.31 -1535.16 3515.31 HS 0.00 6.63 5947299.12 647833.92 15600.00 8885 8925 8783.97 8873,77 815.8 -1533.85 3615.30 HS 0.00 8.84 5947302.5 647933.86 15648.08 89.85 8925 8784.10 8873.90 3663.39 -1533.22 38838 8.81 0.00 6.64 594783.90 64798193 15881.19 90.50 88.15 8784.00 887380 3898.48 -1532.78 3696.48 15.151 2.00 8.84 5947305.00 848015.00 15700.00 90.86 8905 878378 8873.58 3715.29 -1532.48 3715.29 15.151 2.00 8.65 5947305.66 648033.80 1572512 91.35 88.92 8783.29 887309 3740.40 -1532.02 3740.40 HS 2.00 6.65 5947306.58 648058.90 1580000 91.5 88.82 8781.53 8871.33 3815.25 -158.81 3815.25 118 0.00 6.66 594730943 848133.69 1590000 91.35 88.92 8779.18 8868.98 3915.20 -1528.73 815.20 HS 0.00 6.86 5947313.22 64823359 15069.03 91.35 88.92 8777.55 8867.8 884.20 -152743 884.21 1.871 0.00 6.87 5947315.85 64882.54 18000.00 9197 88.90 8776.86 8866.46 4015.15 -1526.84 4015.15 1.871 2.00 8.67 5947317.03 848333.47 16078.68 93.50 88.85 8773.00 8882.80 4091.73 -1525.33 4091.73 8.861 2.00 8.68 5947320.00 648410.00 1610000 04.21 88.74 8771.43 8861.23 4114.99 -1524.84 4114.99 8.871 310 6.68 594732094 848433.25 16128.68 95.03 88.81 8769.28 8859.08 4141.55 -1524.23 4141.55 HS 310 6.88 5947322.06 648459.79 18200.00 85.03 88.61 8762.85 8852.85 4214.59 -1522.46 4214.59 HS 0.00 6.69 5947325.23 848532.78 16209.71 95.03 88.81 8762.00 8851.80 4224.26 -1522.22 4224.26 177.531 0.00 6.89 5847325.65 848542.44 16300.00 92.23 88.49 8756.28 8846.08 4314.33 -1510.04 4314.33 177.541 3.10 8.70 5947329.68 648832.44 1687.57 92.00 88.48 8758.00 8845.80 4321.89 -1519.74 4321.89 179.081 3.10 6.70 564738.00 848640.00 18400.00 90.15 88.45 8754.28 8844.08 4414.27 -1517.27 4414.27 179.081 2.00 6.71 5947334.25 648732.30 18500.00 88.15 88.42 8755.74 8845.54 4514.22 -1514.53 4514.22 179.081 2.00 8.72 5947338.89 648832.17 16501.2368.13 88.42 8755.78 8845.58 4515.45 -1514.50 4515.45 HS 2.00 8,72 5947338.95 64883340 16600.00 88.13 88.42 8759.01 8848.81 4814.13 -1511.77 4814.13 HS 0.00 6.73 5947343.57 848032.00 18700.00 88.13 88.42 8782.28 8852.08 4714.03 -1509.01 4714.03 HS 0.00 6.73 5947348.25 649031.83 16800.00 88.13 88.42 8785.55 8855.35 481194 -1508.25 481394 HS 0.00 8.74 5947352.92 848131.66 Y13A_10T12 18844.42 88.13 88.42 8787.00 8858.80 .. 4858.32 -1505.02 4858.32 0.00 6.74 5947355.00 649178.00 Survey Type: Non-Def Plan Drilling Office 2.5.1100.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-13\Y-13A\Y-13A(P4) 6/20/2012 4:00 PM Page 2 of 3 Comments (ft) Incl Axis True TVDSS TVD VSEC NS EW TF OLS Directional Northing Easting (ft) (1 (°) (ft) (ft) (ft) (ft) (ft) (•) (°I100ft)Difficulty Index (DUD) (ftUS) Legal Description: Northing IV) Eastino(XI Surface'38064 FSL 527.8 FEL 633 T11N RI3E UM 5948766.510 644290.110 Tie-In:3762 FSL 749 FEL 33 TiIN R13EUM 5948723.980 844070.040 y-25b 1911.2139 VOL 1675 FEL 33 TI IN R13EUM 5947084.000 843179.000 y13a_t9t2 2055 FSL 805 FEL 33 Ti IN R13EUM 5947020.000 644250.000 y13a_i443:2128 FSL 229 FEL 33 TI IN R13EUM 5947100.000 844825.000 y13a_t444:2222 FSL 4701 FEL 34 T116 R13EUM 5947210.000 645430.000 y13e_igi6 2235 FSL 4108 FEL 34 T11N R13EUM 5947235.000 648025.000 y13a_1g16:2243 FSL 3726 FEL 34 Ti iN R13EUM 5947250.000 848405.000 y13a_1917:2257 FSL 3150 FEL 34 Ti IN R13EUM 5947275.000 846980.000 y13e_tgt8:2261 FSL 2580 FEL 34 Ti 1N R13EUM 5947290.000 647550.000 $139_1919:2266 FSL 2115 FEL 34 711N R13EUM 5947305.000 848015.000 y13a_tgt10:2274 FSL 1719 FEL 34 1116 R13EUM 5947320000 648410.000 y13a_igt11 2279 FSL 1489 FEL 34 1116 R13EUM 5947330.000 848640.000 y13a.22i12/BHL:2294 FSL 953 FEL 34 T116 R13EUM 5947355.000 649176.000 Drilling Office 2.5.1100.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-13\Y-13A\Y-13A(P4) 6/20/2012 4:00 PM Page 3 of 3 X ‘1! r±4‘ -N A 1 ,„1 1 4 .01 4 4 •K, 0 ck., ..6' • 4 1 ict .01 f(5\ lb 4---,, A -1t0 „i_ I i 1 4 4 1 ,--- , . 1 . ) Nii-;,.;' A •- iF aril. --i-r, , ,,,..__AL El M NM C,3 , 1 11 I M t4Z F-1. — ..., k)1 li ' all • Ti.1 •--.4, i1 ..,.. 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I ig .. •g5, 11. 09 00 1;1 gj g :IS I .1'.:*Ii iii5 M I illi 0 ' Hi IiiiI i $7,25: 1 111 1 ICJ 6.li --- yr.gr. \miff/ I ' • kr} _ ri 'ci Z 1 : .. k — ...... 1. ,...... vs 1 IQ CD U ell t!'. 1 1 1. 1 1 _ Et a-. i w [ . - i 1 li . - i --I- - :. o ro itt.ti't :lot u) it I- i.uui1.1111111111 43 1 IIliii I I 1 14115f I 1111 ..„,...Cr k4 FL- III II .11111911!" ....-1 I I Q ,1.!,Mm ; 1 0 a • I C) _ 4) g • a 11 . 9 I' North America - ALASKA - BP Prudhoe Bay PB Y Pad Y-13 Plan Y-13A Plan#4 Y-13A Anticollision Summary Report 20 June, 2012 Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Y-13-Slot 13 Project: Prudhoe Bay TVD Reference: Doyon25 drilling rig @ 89.80ft(Doyon25) Reference Site: PB Y Pad MD Reference: Doyon25 drilling rig @ 89.80ft(Doyon25) Site Error: 0.00ft North Reference: True Reference Well: Y-13 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Y-13A Database: EDM.16-ANC Prod-WH24P Reference Design: Plan#4 Y-13A Offset ND Reference: Offset Datum Reference Plan#4 Y-13A Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of refer, Interpolation Method MD Interval 100.00ft Error Model: ISCWSA Depth Range: Unlimited Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1,880.36ft Error Surface: Elliptical Conic Survey Tool Program Date 6/20/2012 From To (ft) (ft) Survey(Wellbore) Tool Name Description 104.30 3,900.00 Gyrodata surveys 2Jun 2012(Y-13) GYD-CT-CMS Gyrodata cont.casing m/s 3,900.00 4,500.00 Plan#4 Y-13A(Plan Y-13A) INC+TREND Inclinometer+known azi trend 3,900.00 4,500.00 Plan#4 Y-13A(Plan Y-13A) GYD-CT-CMS Gyrodata cont.casing m/s 4,500.00 6,000.00 Plan#4 Y-13A(Plan Y-13A) MWD MWD-Standard 4,500.00 10,752.00 Plan#4 Y-13A(Plan Y-13A) MWD+IFR+MS MWD+IFR+Multi Station 10,752.00 12,300.00 Plan#4 Y-13A(Plan Y-13A) MWD MWD-Standard 10,752.00 16,844.42 Plan#4 Y-13A(Plan Y-13A) MWD+IFR+MS MWD+IFR+Multi Station 6/20/2012 3:35:26PM Page 2 of 5 COMPASS 2003.16 Build 73 Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Y-13-Slot 13 Project: Prudhoe Bay TVD Reference: Doyon25 drilling rig @ 89.80ft(Doyon25) Reference Site: PB Y Pad MD Reference: Doyon25 drilling rig @ 89.80ft(Doyon25) Site Error: 0.00ft North Reference: True Reference Well: Y-13 Survey Calculation Method: Minimum Curvature Well Error: O.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Y-13A Database: EDM.16-ANC Prod-WH24P Reference Design: Plan#4 Y-13A Offset TVD Reference: Offset Datum Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) EX PR331113 PR331113-PR331113-PR331113 6,444.57 5,400.00 745.45 82.83 664.09 Pass-Major Risk PB A Pad A-05-A-05-A-05 Out of range A-05-A-05A-A-05A 16,732.63 11,400.00 217.28 240.93 46.25 Pass-Major Risk A-41-A-41-A-41 Out of range PB Y Pad Y-05-Y-05-Y-05 14,540.31 9,400.00 1,054.71 353.33 722.43 Pass-Major Risk Y-05-Y-05A-Y-05A 14,258.16 9,400.00 1,028.81 318.78 728.28 Pass-Major Risk Y-05-Y-05B-Y-05B 14,258.16 9,400.00 1,028.81 318.78 728.28 Pass-Major Risk Y-05-Y-05BPB1-Y-05BPB1 14,258.16 9,400.00 1,028.81 318.78 728.28 Pass-Major Risk Y-07-Y-07-Y-07 2,796.56 2,800.00 648.37 37.36 611.01 Pass-Major Risk Y-09-Y-09-Y-09 2,798.48 2,800.00 425.03 40.29 384.74 Pass-Major Risk Y-09-Y-09A-Y-09A 2,797.81 2,800.00 425.02 40.28 384.75 Pass-Major Risk Y-09-Y-09AL1-Y-09AL1 2,797.81 2,800.00 425.02 40.28 384.75 Pass-Major Risk Y-09-Y-09AL1-01-Y-09AL1-01 2,797.81 2,800.00 425.02 40.28 384.75 Pass-Major Risk Y-09-Y-09APB1-Y-09APB1 2,797.81 2,800.00 425.02 4028 384.75 Pass-Major Risk Y-10-Plan Y-10B-Y-10B(P8) 4,484.60 4,700.00 432.17 431.39 21.76 Pass-Major Risk Y-10-Y-10-Y-10 4,200.00 4,400.00 375.22 239.33 288.57 Pass-Major Risk Y-10-Y-10A-Y-10A 4,200.00 4,400.00 375.22 239.33 288.57 Pass-Major Risk Y-11-Y-11-Y-11 2,893.69 2,900.00 196.00 40.34 155.74 Pass-Major Risk Y-11-Y-11A-Y-11A 2,893.69 2,900.00 196.00 40.34 155.74 Pass-Major Risk Y-11-Y-11B-Y-11B 2,895.49 2,900.00 196.04 40.36 155.77 Pass-Major Risk Y-11-Y-11BPB1-Y-11BPB1 2,895.49 2,900.00 196.04 40.36 155.77 Pass-Major Risk Y-11-Y-11C-Y-11C 2,900.20 2,900.00 196.16 40.41 155.83 Pass-Major Risk Y-12-Y-12-Y-12 2,802.63 2,800.00 85.55 40.22 45.37 Pass-Major Risk Y-13-Y-13-Y-13 4,500.00 4,500.00 39.50 397.04 -303.52 FAIL-Major Risk Y-14-Y-14-Y-14 12,395.76 9,700.00 665.42 154.35 516.48 Pass-Major Risk Y-14-Y-14A-Y-14A 12,374.50 9,700.00 682.72 154.33 535.83 Pass-Major Risk Y-14-Y-14B-Y-14B 12,374.50 9,700.00 682.72 154.33 535.83 Pass-Major Risk Y-19-Plan Y-19A-Y-19A Plan#12 2,896.96 2,900.00 70.51 43.07 27.46 Pass-Major Risk Y-19-Y-19-Y-19 2,808.34 2,800.00 69.12 41.56 27.56 Pass-Major Risk Y-20-Y-20-Y-20 1,280.23 1,300.00 116.49 27.34 89.16 Pass-Major Risk Y-20-Y-20A-Y-20A 1,290.27 1,300.00 116.97 27.61 89.38 Pass-Major Risk Y-20-Y-20AL1-Y-20AL1 1,290.27 1,300.00 116.97 27.61 89.38 Pass-Major Risk Y-20-Y-20AL2-Y-20AL2 1,290.27 1,300.00 116.97 27.61 89.38 Pass-Major Risk Y-20-Y-20AL2PB1-Y-20AL2PB1 1,290.27 1,300.00 116.97 27.61 89.38 Pass-Major Risk Y-21-Y-21-Y-21 2,804.30 2,800.00 285.96 41.34 244.62 Pass-Major Risk Y-21-Y-21A-Y-21A 2,804.30 2,800.00 285.96 41.34 244.62 Pass-Major Risk Y-22-Y-22-Y-22 1,736.54 1,800.00 184.82 39.21 145.61 Pass-Major Risk Y-22-Y-22A-Y-22A 1,736.54 1,800.00 184.82 39.21 145.61 Pass-Major Risk Y-23-Y-23-Y-23 2,435.79 2,500.00 411.90 47.67 364.25 Pass-Major Risk Y-23-Y-23A-Y-23A 2,435.79 2,500.00 411.90 47.67 364.25 Pass-Major Risk Y-23-Y-23APB1-Y-23APB1 2,435.79 2,500.00 411.90 47.67 364.25 Pass-Major Risk Y-23-Y-23APB2-Y-23APB2 2,435.79 2,500.00 411.90 47.67 364.25 Pass-Major Risk Y-23-Y-23B-Y-23B 2,444.11 2,500.00 412.35 47.92 364.46 Pass-Major Risk Y-25-Y-25-Y-25 2,804.30 2,800.00 356.27 38.74 317.53 Pass-Major Risk Y-25-Y-25A-Y-25A 2,804.30 2,800.00 35627 38.74 317.53 Pass-Major Risk Y-26-Y-26-Y-26 4,440.13 4,500.00 145.12 397.73 -76.83 FAIL-Major Risk Y-26-Y-26A-Y-26A 4,440.13 4,500.00 145.12 397.73 -76.83 FAIL-Major Risk Y-27-Y-27-Y-27 1,296.86 1,300.00 35.89 26.71 9.18 Pass-Major Risk Y-29-Y-29-Y-29 2,704.30 2,700.00 463.05 34.91 428.14 Pass-Major Risk 6/20/2012 3:35:26PM Page 3 of 5 COMPASS 2003.16 Build 73 Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Y-13-Slot 13 Project: Prudhoe Bay TVD Reference: Doyon25 drilling rig @ 89.80ft(Doyon25) Reference Site: PB Y Pad MD Reference: Doyon25 drilling rig @ 89.80ft(Doyon25) Site Error: 0.00ft North Reference: True Reference Well: Y-13 Survey Calculation Method: Minimum Curvature Well Error: 0.O0ft Output errors are at 1.00 sigma Reference Wellbore Plan Y-13A Database: EDM.16-ANC Prod-WH24P Reference Design: Plan#4 Y-13A Offset ND Reference: Offset Datum Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Weilbore-Design (ft) (ft) (ft) (ft) PB Y Pad Y-29-Y-29A-Y-29A 2,704.30 2,700.00 463.05 34.91 428.14 Pass-Major Risk Y-34-Y-34-Y-34 14,767.23 9,600.00 330.33 180.69 159.92 Pass-Major Risk Y-34-Y-34A-Y-34A 15,061.62 10,100.00 19220 189.40 72.87 Pass-Major Risk Y-35-Y-35-Y-35 2,704.30 2,700.00 1,130.19 34.79 1,095.40 Pass-Major Risk Y-37-Y-37-Y-37 812.25 800.00 247.08 10.90 236.26 Pass-Major Risk Y-37-Y-37A-Y-37A 812.25 800.00 247.08 11.06 236.11 Pass-Major Risk Y-37-Y-37APB1-Y-37APB1 812.25 800.00 247.08 10.90 236.26 Pass-Major Risk Y-37-Y-37APB2-Y-37A 812.25 800.00 247.08 11 A6 236.11 Pass-Major Risk 6/20/2012 3:35:26PM Page 4 of 5 COMPASS 2003.16 Build 73 Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Y-13-Slot 13 Project: Prudhoe Bay TVD Reference: Doyon25 drilling rig @ 89.80ft(Doyon25) Reference Site: PB Y Pad MD Reference: Doyon25 drilling rig @ 89.80ft(Doyon25) Site Error: 0.00ft North Reference: True Reference Well: Y-13 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Y-13A Database: EDM-16-ANC Prod-WH24P Reference Design: Plan#4 Y-13A Offset TVD Reference: Offset Datum Reference Depths are relative to Doyor25 drilling rig @ 89.80ft Coordinates are relative to Y-13-Slot 13 Offset Depths are relative to Offset Datum Coordinate System is US State Plane 1927(Exact solution),Alaska Zone 04 Central Meridian is 150°0'0.000 W° Grid Convergence at Surface is:1.10° Ladder Plot I II I T -'- I 2000 1 1 1 1 , I 1 1 I I I I I I I I I I ---1 I I'A 1 Pr \ I 1 ' I n 1 - 1 I �_ Will .... I 1 ' I 'ly r'0 1500 i I I fl I I �ti I I !y'�r I 1 1 I C I 1/+l I I I I + 1 1 m. : Jjf: r+ tLIi I I , f ��1000 //I / I11C Ia1 I �/ 1 1 3,, 10 I 1 4 1 1 et r 1 I t I 1 C 1 ,41 ` I 1 ,j, I I LLL((((JJJJ d 500 i!, t , 1 1 it /j � 1 ,. I I l 1 sv f1 � 1iI I I I I I "'4�, J J J J ___ J l 1 I i I I 0 y w i. 1 1 1 1 -p- PR331113,PR3 b3,PR331113V16 - Y-11,Y-11BP861 11BPB1V4 1AnY-23,Y-23APgb.033APB1V1 18000 -9- A05.A-05,A-05V9 - Y-UASUM8@pfCI(3000Win) -c'- Y-33,Y-23APB 3,Y•33AP82Vi -'S-- A-05.A-054405AV8 -9- Y-12,Y-12,Y12Vf - Y.23,Y•231),Y-238 V7 A41,A41,441VT -.fr. 4-I3,4.13,1I3VI - 4.25,1['5,125 V1 Y-05.Y-05,Y-05V3 -8- Y-14,Y-14,Y-14 V5 -itr- Y-25,Y•25A,Y-25AV3 -$- Y-05,Y-OS A.Y-05AV1 -a- Y-14,Y14A.Y-14AV2 -4- Y-26,Y•26,Y-28 V1 Y-05.Y•058,Y-058 V4 -g- Y-14,Y-14B,Y-148 V3 Y-20,Y.25A,Y-26AV2 9 Y-05.Y058PO1,Y-O58P01 V3 -e- Y 19,Plan Y-19A.Y-19APtan#12 VO -e- Y-27,Y-27,Y27 V1 -44- Y-07,Y-07,Y-07 V1 -X-- Y-19,Y-19,Y.19V1 - - Y-29,Y-29,Y-29 V1 -9- Y-09.Y-09,Y-09V3 -0- Y-20,Y-20,Y-20 V3 -- Y-29,Y-29 A,Y-29AV2 -4- Y-09,Y-09A,Y•09AV4 Y-20,Y-20A,Y-20AV13 -9- Y-34,Y34,Y-34 V1 -9- Y-09,Y-09ALI,Y-09ALI b9 -9-- Y-20,Y-20 AL1,Y-20AL1 VO Y-34,Y-34A,Y-34AV3 - ., Y-09,Y-09AL1.01,Y-OCAL1.01 V4 -0- Y-20,Y-20AL2,Y-20AL2 V0 411 Y-35,V 35,Y.35 V1 -is- Y-09,Y-0GAP B1.Y-09AP81 V7 -j(- Y-20,Y-20AL2 PB1,Y20AL2P81 VO -e- Y-37,Y-37,Y-37 VI 6/20/2012 3:35:26PM Page 5 of 5 COMPASS 200316 Build 73 Project: Prudhoe Bay Site: PB Y Pad Well: Y-13 Wellbore: Plan Y-13A Design: Plan#4 Y-13A Whole well path Scan interval-25 ft Scale 1 :50 Wells minor risked as per report 0 175 330 f 30 „���� 150 Y-13/Y-13 A�r'ill ��' /' 4916 r �y�\� Ir '�; , 1111t ►i/11 1 4894 Are".• WI . X49 71 •AfrS' a8os 300 ..4'I��;�r;ilf 60 Nj:�410k •783 let ��4761 t/`��,,t %47 `1,`'��'',,r 75 :4739 16 , /..'69 k .,,., ., , ...„,„, 14989 ��1• 1�0‘4ii ir7. ) , ,. t \ \/ , ,,-,,: \ 1 270 74999 ! ,Fer.m. +---- 90 1 Iif 15010 �Allitteli - ArlilitakSt !)466110-05A` v-A. 41.11"414:41064r1 ►�A, `� F:- \ / Y-34/Y-34A �'�.*v1k dl��'��tirkli _ . .� / - - - 1#%.4o,v4(fella t% --"---- - / �!I,i1h�.1 . 1 240 .�. .����,1ivipisAmi 1 - '-� / 120 .- •vit§-:*>444WATI ----_____-- , .... irs44.00,m.o. ---_ 41 /i' ,.‘-6z,'4i,#/ii _------ ____--- • 210 �t, vi1 �jt�rt�k Ft 150 air 175 180 Travelling Cylinder Azimuth(TFO+AZI)r]vs Centre to Centre Separation[50 Win] Plan Plaet14 Y-13A(Y-131131an Y-13A) 7 I 31500 _ I I I I I I I I r I I I I I I I i I I I I I I I I i 3040 _ - I I I I I I I I I I I I I I I I I I I I I I I I I i i i I I i I I I I I 25 _ 00- I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 2 _ 1 I I I I I I I i I I I - I I I I I I I I X00 1 _ I _ f I I I I I I I I I I I I 1000= I I I I I I I I I I I i I I -500= I I I I I I I I I u I I I = I , I -r -2504200[11 s ' : ,11-50o 0 500 100015002000250030003500400045005000 -500- I I I i I i i I I I I �-- -1000- I I I I I I I i I i I I -1500_ - I oEn i I I I I I I I I I I I I I I I I -2500- I I t t I I I I I I I I I I I I I i I I I I I I i -3000= I I I I I I I I I I = I I I I I I I I I I i I I I I I I I I I I I i i I I -3500= I I I - I I 1 I I I I I I -4000- I I i i I I -4500= I I I i I I i I I I 1 I I I I I I I I i I i I I I I -5000-= West(-) t(+) [ft] Platy PY-13A(Y-13/Plan Y-13A) _ I I I ! I ! ! I I I I I I - I I I ! I I I I I I I I I I I I I I I I I ! I I I I 500- I I I I I I I I I I I I I I i I I I I I I I i i i I I I I I I I I I I I I I I I I I 1000- I I I I I I I I I I I I I i I I I I i I I I I I i I I I I I l I I I I I i I 1500= I I I I I I I I I i ! I I I ! I I ! I I I I I I 2000 _ �_ 1 I I I I I I I I I I I I I I I I I I I I I I I I I i I I I I I I I I I I I I I I I { I 2500 I I I I I I I I I I I I I I I +, I I I I 3000 f I I I I I I I I I u I I I I i I I I I I I I I I I I I I I I I I I I I I I I ! I I I 3500 _ I I I I I I I I I I I I I I I I I I I I I I I I ,_, 04- f I I I I I I I I I I I I I _ f I I 5004- I I I I I I I I I I I I I I I I 0 5504 I I I I I I I I I I I I I I 6004- I I I I I I I I l I I I 6504= I I I l I I I I I ! ! I I I I I I I I ! I I I = I ! ! 1 I I I I ! I I I i I 7004- I I I I I I I I I I I I I I I I I I I I I I 7504= I I I I I I f I I I I I I I I I I I I I I I I I I 8000 I I f 1 I I I I I 8500 I I I I I 1 i 1 I i I I Iii I . 1 ! l1 I I 1 i I I I - I , , 1 , , , , 1 -2500200015001000-500 0 500 1000150020002500300035004000450050005500 Vertical Section at 107.21° [ft] Page 1 of 1 Schwartz, Guy L (DOA) From: Madarapu, Rahul Raj [Rahul.Madarapu@bp.com] Sent: Wednesday, September 19, 2012 4:06 PM To: Schwartz, Guy L (DOA) Cc: Kosaka, Takahiro Subject: RE: PBU Y-13A(PTD 212-141) Attachments: Y-13A(P4) BP mini TC plot.pdf; Y-13A(P4) BP AC sum Scan.pdf Guy, Here is the Anti-Collision information along with the travelers cylinder. Myself or Takahiro Kosaka will get back with you along with the Wellhead diagram. Regards, Rahul Madarapu Drilling Engineer +1 (907)564 4147(Direct) +1 (907)748 0997(Mobile) GWGloha: Wells Organ=tabor• From: Schwartz, Guy L(DOA) [mailto:guy.schwartz@alaska.gov] Sent: Wednesday, September 19, 2012 4:00 PM To: Madarapu, Rahul Raj Subject: PBU Y-13A (PTD 212-141) Rahul, Can you supply a traveling cylinder plot and associated anti -collision data for this proposed well. Also a vendor supplied diagram of the wellhead would be appreciated. Regards, Guy Schwartz Senior Petroleum Engineer AOGCC 793-1226 (office) 444-3433 (cell) 9/19/2012 OVERSIZED DOCUMENT INSERT This file contains one or more oversized documents. These materials may be found in the original hard file or check the parent folder to view it in digital format. TRANSMITTAQL LETTER tR CHECKLIST WELL NAME < tom/a `•)-- /3 PTD# Z—/4/0 Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: �uA3'� POOL: Pi�'tC2/`_6 .iL a-7 Check Box for Appropriate Letter I Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (If last two digits in Permit No. ,API No. 50- - - API number are - between 60-69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(0, all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to produce/inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Non-Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name)must contact the Commission to obtain advance approval of such water well testing program. Rev:9/09/2011 E N ; ; . . ; . ; : . , , . ; . •. 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