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Home My WebLink About1995 Endicott Oil Pool1995 Reservoir Surveillance Report Endicott Oil Pool May, 1996 Waterflood Surveillance Program Key Well Pressure Monitoring Program GOC Monitoring Program RE( F1\/FD pnv 17 1946 Alasm Off 6 Gas U0116 1995 Endicott Reservoir Surveillance Report Table of Contents Page 1 Waterflood Surveillance Program: Introduction Page 2 Project Status Summary Page 2 Injection Well Performance Page 3 Waterflood Tracer Page 3 Future Waterflood Plans Page 4 Endicott Field Well Plat (highlighting injectors) Figure 1 Summary Of Pertinent Data Table 1 Reservoir Balance For Waterflood Sands Table 2 Injection Well Data Table 3 Waterflood Tracer Plat Figure 2 Pressure Monitoring Program: Introduction Page 5 1995 Pressure Monitoring Program Page 5 1996 Pressure Monitoring Program Page 6 Endicott Field Well Plat (highlighting Key Wells) Figure 3 1995 Key Well Pressure Monitoring Program Table 4 1995 Key Well Pressure Data Table 5 1996 Key Well Pressure Monitoring Program Table 6 GOC Monitoring Program: Introduction Page 8 1995 Gas -Oil Contact Monitoring Program Page 9 1996 GOC Monitoring Program Page 10 Endicott Field Well Plat (highlighting Key Wells) Figure 4 Gas -Oil Contact Monitoring Program Table 7 Appendices: 1. Production Rate vs Time Plots 2. Cumulative Crude Production & Percent Recovered vs Time Plots 3. Cumulative Voidage & Reservoir Pressure vs Time Plots 4. Injection Well Rate & Pressure vs Time Plots 5. Endicott Oil Field Historical Key Well Pressure Data 6. Pressure vs Time Endicott Field 7. Key Well Pulsed Neutron Log Overlays Endicott Oil Field 1995 Waterflood Surveillance Program Introduction Conservation Order 202 Rule 12 approved a field wide waterflood project. Further, the waterflood was to be implemented within two years of regular production and a waterflood plan submitted three months before actual water injection began. By letter, dated June 15, 1988, the plan to implement the field wide waterflood was approved and semi-annual pressure maintenance project reports stipulated. By letter, dated January 11, 1991, the Endicott Waterflood development was recognized as complete and fully operational and annual waterflood surveillance reporting was approved. Project Status Summary Production and gas re-injection was initiated in October 1987. Water injection was initiated in February 1988. This report summarizes the cumulative effects of pressure maintenance since field start-up and details activities in 1995. Figure 1 shows a map of the field with current well statuses including the existing water injectors, gas injectors and oil producers. Well service additions and changes from the last report date include: • 1-03/P-13 Drilled & completed MPI 2B producer (11/95) • 1-19/1-18 Drilled & completed MPI 2B producer (08/95) • 1-23/0-15 Drilled & completed MPI 2A water injector (01/95) • 1-31/M-21 Drilled & completed MPI 2A producer (06/95) • 1-33/M-23 Drilled & completed MPI 2A producer (10/95) • 1-61/Q-20 Drilled & completed MPI 2B producer (01/95) • 2-40/5-22 Drilled & completed SDI 3C producer (02/95) • 2-48/0-13 Drilled & completed MPI 3A producer (12/95) • 2-60/U-13 Drilled & completed MPI 3C producer (03/94) • 3-19/R-28 Drilled & completed SDI 3B/3C producer (06/94) • 3-43/P-36 Drilled & completed SDI 3B/3C producer (05/94) • 3-47/Q-35 Converted to SDI 3B/3C water injector (03/95) • 4-02/Q-28 Converted to SDI 3B water injector (01/95) 2 Table 1 summarizes total production, injection, and well count data for the entire pool through December 1995. Table 2 details, through December 1995, the reservoir balances by area and subzone. There are three areas which are the fault blocks identified as the MPI (Main Production Island area), SDI (Satellite Drilling Island area) and the NFB (Niakuk Fault Block). The NFB is included in with the MPI on Exhibit 3 for simplicity. There are six subzones (3C, 3B, 3A, 2B, 2A, 1) which are the general geological subdivisions within the Kekiktuk formation. Appendix 1 provides graphs of Production and Percent Rate versus Time by area and subzone. Appendix 2 provides graphs of Cumulative Crude Production and Percent Recovered versus Time by area and subzone. Appendix 3 provides graphs of Cumulative Voidage and Reservoir Pressure versus Time by area and subzone. Injection Well Performance Table 3 provides an overview of the performance of each of the pressure maintenance injectors. Included in this exhibit are the start-up dates, cumulative injection volumes, and current target injection rates. Appendix 4 provides graphs of the injection rates, injectivity index, and wellhead pressure versus time for each of the active injectors. Waterflood Tracer The waterflood tracer program was started in 1988. A total of 16 water injectors have been traced. The program has been very successful in identifying the progress of the waterflood as depletion matures. Numerous interventions have been implemented on producers and injectors to improve ultimate recovery. 3 Figure 2 is an Endicott well plat showing the dates and types of tracers injected and the producing locations where the tracer has appeared. Future Waterflood Plans In 1996 there are plans to trace three additional water injectors (1-23/0-15, 4-40/P-43, and 4-08/P-27). Forty-five wells will continue to monitored for tracer, ten of which will continue to be monitored for sea water breakthrough. Reservoir pressure, gas and water movement will continue to be closely monitored through logging, mechanical isolations, and well testing. Changing pressure maintenance needs will continue to be met through new well drilling, converting producers to injectors, profile modification of existing injectors, and target injection rate control. Offtake will continue to be optimized through new well drilling, remedial work on existing producers, and production rate control. C! ENDICOTT FIELD TIGVARIAK FAULT 1.09..1.18 1.01 ' V¢<P �` J 18 'I-18 .1g 7.21 & K-34 3-39 J 39 �. r•—/ G K-2"5 3.173-a5_" 3.33 432 `f `fit_ 4 a.24, Y J -30A K-33 K-37 KSB ,41� W 321 w 2-28 2 f L 18 2-04 G 2 M 23 M-28 3.11 29 J 32 3 �' .:` M-18 1.31 N O 3 25 M-30 L 34 ys •9: N -t`4 L 1 1.03 '1 W 20. M-21 M.27 w W �` P-16 2- 4.. ` 3-01 1 M-33 4✓20'r . 0.16. G -29 23 4.29 -'190.25 N-25 w 4 3.p5 N32.96N-37: w 2.28 1.61 •�2 0.29 41 P-19 24' G W 4A2. 4-06 442 . w ,2��t`C� ,147 31 G 1-45 028:. 0.92 p- P'96 -... #w .4 .. w II i5 269 1 1 -57 23 028 4k%, 2S8 3-19 4-t8 WW,,77 3. W. 5.09 _`$4 ` R';i7` 1-55 - R28 5.90 y=am w 2-59- " / - - -` 167 2.40 ' R-25 , � W U-08 270 T20 5-22 169 r2s ENDICOTT ZONAL MAP 1s W /' T W SUBZONE 3C OSUBZONE 213 U-13 1i9;. ]-Sf MIKKELSEN BAY FAULT = f,-- SUBZONE 38 O SUBZONE 2A W w SUBZONE 3A 0 ZONE 1 W J. L. Haas 04/25/96 FIGURE 1 TABLE 1 ENDICOTT OIL POOL SUMMARY OF PERTINENT DATA (as. of December 31, 1995) Water Injection Start-up: February 29, 1988 Endicott Production since Field Start -Up: Black Oil and Condensate (MMSTB) 303.1 NGL's (MMSTB) 9.1 Gas (BSCF) 647.6 Water (MMB) 154.4 Endicott Injection since Field Start -Up: Gas (BSCF) 554.8 Water (MMB) 392.5* Wells in Operation: Oil Producers 41 Gas Injectors 5 Water Injectors 24 Waste Water Disposal 1 ** Total 71 * Water injection volumes do not include Cretaceous injection * * Cretaceous injector not shown in Exhibit 1 NOTE: Water injection volumes do not include Cretaceous injection 5/3/96 1:07 PM 95 AOGCC Table 2 TABLE 2 ENDICOTT OIL POOL RESERVOIR BALANCE FOR WATERFLOOD SANDS Through 12/31/95 (Values in MMRB) MPI REGION bySUBZONE i Produced Volumes ,aB 3A 1 MPI Total Oil 19.30 5.70 48.50 55.80 97.80 1.10 228.20 Free Gas 21.20 4.60 45.30 61.60 80.90 0.50 214.10 Water 5.50 3.30 16.50 12.60 18.60 0.00 - 56.50 Total 46.00 13.60 110.30 130.00 197.30 1.70 498.90 Injected Volumes Gas 21.30 11.30 91.80 93.60 126.00 0.00 344.00 Water 11.00 9.10 49.40 37.40 47.40 0.17 154.47 Total 32.30 20.40 141.20 131.00 173.40 0.17 498.47 Net Voidage Volumes Total 13.70 -6.80 -30.80 -0.90 24.00 1.50 0.70 SDI REGIONbySUBZONE Produced Volumes 3-C ,3� 3A 2B 2A 1 SDI Total Oil 42.30 10.70 27.10 69.40 31.70 0.00 181.20 Free Gas 32.40 7.50 3.90 11.90 21.30 0.00 77.00 Water 18.30 6.80 13.40 37.90 21.50 0.00 97.90 Total 93.00 25.00 44.40 119.20 74.50 0.00 356.10 Injected Volumes Gas 34.90 0.30 0.00 0.00 0.00 0.00 35.20 Water 46.50 18.40 41.50 91.40 40.40 0.00 238.20 Total 81.40 18.70 41.50 91.40 40.40 0.00 273.40 Net Voidage Volumes Total 11.50 6.20 2.80 27.80 34.20 0.00 82.60 FIELD TOTALS by SUBZONE Produced Volumes 3C 2B aA 2a 2A 1 Field Total Oil 61.60 16.40 75.60 125.20 129.50 1.20 409.50 Free Gas 53.60 12.10 49.20 73.50 102.20 0.50 291.10 Water 23.80 10.10 29.90 50.50 -40.10 0.00 154.40 Total 139.00 38.60 154.70 249.20 271.80 1.70 855.00 Injected Volumes Gas 56.20 11.50 91.80 93.60 126.00 0.00 379.10 Water 57.50 27.50 90.80 128.70 87.70 0.20 392.40 Total 113.70 39.00 182.60 222.30 213.70 0.20 771.50 Net Voidage Volumes Total 25.30 -0.50 -28.00 26.90 58.10 1.50 83.30 NOTE: Water injection volumes do not include Cretaceous injection 5/3/96 1:07 PM 95 AOGCC Table 2 Table 3 Endicott Oil Pool Injection Well Data Through 12/31/95 Target Target Well Name MBWPD MPI Reservoir Area 1-05/0-20 BSCFG 1-15/P-25 70.00 1-23/0-15 6.50 1-37/P-24 11.00 1-41/0-23 17.00 1-51/V-20 3.00 1-69/V-19 4.00 2-06/J-22 2-12/Q-16 0.00 2-16/M-16 10.00 2-22/L-14 12.00 2-24/M-12 1.50 2-30/0-09 1.00 2-34/P-14 9.00 2-44/R-12 8.00 2-54/Q-12 13.50 2-64/U-10 0.00 2-70/U-15 6.00 5-01/SD-07 47.60 5-02/SD-10 15.00 SDI Reservoir Area 1-43/P-26 27.00 3-07/N-28 22.00 3-41/K-39 25.00 3-45/M-39 10.00 3-47/Q-35 3.50 4-02/Q-28 0.80 4-04/T-26 4.00 4-08/P-27 17.50 4-14/R-34 3.00 4-40/P-43 4.00 4-44/M-44 0.00 4-48/K-43 7.00 Total 241.30 Table 3 Endicott Oil Pool Injection Well Data Through 12/31/95 Target Cumulative Cumulative Start -Up MMSCFGPD MMBW BSCFG Date 70.00 0.00 134.30 May -88 50.00 0.00 51.50 May -93 3.40 0.00 Jan -95 14.10 0.00 Apr -88 0.40 0.00 Dec -95 2.60 0.00 Dec -93 7.60 0.00 Nov -90 140.00 0.00 177.00 Oct -87 35.00 0.00 47.60 Apr -93 24.80 0.00 Mar -89 18.00 0.00 May -89 0.70 0.00 Nov -94 0.00 0.00 Nov -94 15.90 0.00 Nov -89 18.30 0.00 Apr -89 19.20 0.00 Jan -92 0.20 0.00 Feb -91 12.30 0.00 Jul -89 75.00 0.00 144.30 Oct -87 27.20 0.00 Feb -88 49.20 0.00 Apr -89 32.30 0.00 Apr -89 48.40 0.00 May -89 20.00 0.00 Sep -88 1.20 0.00 Mar -95 8.40 0.00 May -88 17.20 0.00 Mar -90 9.50 0.00 May -93 26.50 0.00 Sep -89 4.70 0.00 Oct -92 0.00 0.00 Jun -92 10.60 0.00 Dec -90 370.00 392.70 554.70 Note: Water injection volumes do not include Cretaceous injection. 5/3/96 1:11 PM 95 AOGCC Table 3 OVA F� 2 -Of K -1f 2 2-22 -1 L-14 1 2-16 w�C_!P yg-16 / / 2-44 VT &58 2-52 2 0 U-08 . q 2.60 U-13 4 2-66 SD -1 TRACER TYPES OTmium O Carbon-14/SCN Cobalt -67 CobaB-60 Q M9 g SG • Ammonium Thiocyanate (SCN) • Sodium Benzoate 2.62 Q-17 2-70 U-15. 02 ENDICOTT FIELD WATERFLOOD TRACER PROGRAM TIGVARIAK FAULT .... 101 438 J-19 z -4s . 1-21 aL 3-� K 34 339 s -o1 3'22 K-45 3-17 J-33-.. J.39/ 0 4-411 SD -7 G J30A 3-41 K-43 G K-ry7 K-39 4.50 K g -21 -41 S_ 3-45 9 jos 1.25 1.29 347 rM 39 0-29 -22 M-25 - 3b✓ 3.01 M-33 4-20 / 5-02 1-35 N 28"'N-29 .3.23 M-35 4.28 - N39 46 \ 1-27 7-47 so -1 .25 4 "3-05 N-3 4-26 N-37.. -4 P 7 -29 - 034. - P-21 G 1-45 4-02 - 4.06 3-43 4.42 Q-28 0-32- - P-36 Ju P-38 "Q i 1-57 4- 8 4-14/ Q- -0 R-23 3-19 0 yR-34 126 R-28 26 1.63 4-04 i T-22 T-26 y-2 IKKELSEN BAY FAULT ge�88Pr g�. _ 1-371P-24 Coba11-60 - 4-02Q-28 Carbon-14 - 5-02150.10 Tritium �89 Prog.. 1- 2-16IM-16 Coban -14 2-22/,14 Cobalt -60 244/R-12 Tritium 2-70N-15 Cobalt -60 3-07/N-28 Cobalt -57 3411K-39 Tritium 3-45/14-39 Cobalt -60 414/R-34 Carbon-14 1991 Program 1fi91V-19 Carbon-14 4.04/r-26 Tritium 448YK43 Cuboa-14 FIGURE 1-43/P-26 Ammonium Thiocyanue(SCN) 2-34 44 Ammon;um Thioryanate(SCN) Iwpwpyl & N -Amyl Alcohols 2.44/R-12 Sodium Seozome L.M.Starr 11/3/94 Endicott Oil Field 1995 Pressure Monitoring Key Well Program Introduction A pressure monitoring key well program was submitted to and approved by the AOGCC in Administrative Approval No. 202.5. This program supersedes the requirements of Conservation Order 202, Rule 6(c), and complies with Conservation Order 202, Rule 6(d). The pressure monitoring program key wells were chosen to provide areal coverage of reservoir pressure in each of the major subzones in the two production areas of the reservoir. Historically, the Key Well Program has included at least two points of pressure measurement for each of the producing subzones, one from each MPI and SDI area, to ensure that a valid picture of reservoir pressure behavior can be drawn. Sixteen wells were identified as key wells to track pressure variation within the five major subzones in each of the two main producing areas of the reservoir. Changes have been made through time as reservoir and well characteristics changed in order to provide representative data. Much more reservoir pressure data, other than the key well data, is gathered address specific well and reservoir surveillance needs. Figure 3 is an Endicott well plat showing the location of the sixteen 1995 Key Well reservoir pressures. 1995 Pressure Monitoring Program Table 3 summarizes the wells included in the 1995 Key Well Program. The 1995 program consisted of sixteen key wells, the total key well count remaining constant from 1994. Table4 summarizes the key well pressure data gathered in 1995. Two substitutions from the proposed program were made due to operational and reservoir considerations. Following were the substitutions made: • 1-19/I-18 for 1-01/J-19 due to minimize production impact. 5 • 1-33/M-23 for 3-25/M-27 due to minimize production impact. Appendix 5 lists, by subzone, all current and former key wells with the reservoir pressures obtained since field start-up. These pressures are adjusted to a datum depth of 10,000 feet TVDSS, as is customary in our state pressure reporting. Appendix 6 plots, by subzone and area, key well reservoir pressures along with all other reservoir pressure surveys. Generally speaking there is good agreement between the key well reservoir pressures and other pressure gathered around the field. There are a few exceptions where wells are in small pressure isolated regions. 1996 Pressure Monitoring Program The Endicott Key Well Pressure Monitoring Program has been successful in establishing and monitoring pressure trends within each of the major subzones. Changes in well service and configuration necessitate changes in the 1996 program in order to obtain representative data. BPX recommends that the 1996 Pressure Monitoring Key Well Program for Endicott stay at sixteen wells. These sixteen key wells should provide representative locations to evaluate and confirm pressure trends in each of the major subzones. Following are the changes made from the 1995 program: • 1-095-18: Removed. No longer 2B producer. • 1-31/M-21: Substituted for 3-25/M-27 to minimize production impact. • 2-42/P-13: Substituted for 2-46/Q-15 since now have sole 3B producer. • 3-23/N-32: Substituted for 3-05/0-29 due to recompletion. • 1-57/R-23: Substituted for 1-45/Q-26 since now have sole 3C producer. • 1-67/T-20: Substituted for 1-45/Q-26 since now have sole 3B producer. Table 5 summarizes proposed 1996 Endicott key well pressure monitoring program proposal. As in past years, the amount of static pressure data obtained annually will likely exceed the sixteen wells included in the proposed 1996 Key Well Pressure Monitoring Program. At the operators discretion, representative reservoir pressures gathered in other wells during 1996 might be substituted 6 for the proposed key wells to minimize production impacts or for operational necessity. As the field matures, we will be increasingly challenged with managing this need for additional pressure data while minimizing the cost and associated production impacts. 7 1995 KEYWELL RESERVOIR PRESSURE DATA ENDICOTT FIELD FIGURE 3 1995 KEY WELL PRESSURE MONITORING PROGRAM PROPOSAL ENDICOTT OIL FIELD TABLE 4 Well Area Subzone(s) Comments 1-09/J-18 Niakuk 2B Plug isolating 2A 1-01/J-19 Niakuk 2A Commingled 2A / 1 pressure 2-18/L-16 Niakuk 3A Solely a 3A offtake. 2-26/N-14 Niakuk 36/3C Commingled pressure. 3-25/M-27 MPI 2A Single zone following RWO. 1-61/Q-20 MPI 2B Single zone - HAW 1-49/P-21 MPI 3A Lower 3A monitor point. 2-46/Q-15 MPI 3B/3C Commingled pressure. 2-52/S-14 MPI 313/3C Commingled pressure. 2-58/S-09 MPI 3C Solely a 3C offtake. Added as 3-11/M-30 SDI 2B Plug isolating 2A 3-15/K-33 SDI 2A 4-50/K-41 SDI 3A Upper and lower 3A monitor point. 3-05/0-29 SDI 3B Solely a 3B offtake. 4-18/S-30 SDI 3C Solely a 3C offtake. 1-45/Q-26 SDI 313/3C Mechanical isolation with a 5/3/96 1:21 PM 95 AOGCC Table 4 1995 KEY WELL PRESSURE MONITORING PROGRAM DATA ENDICOTT OIL FIELD TABLE 5 Well Area Subzone(s) Pressure 1-09/J-18 Niakuk 2B 4498 psia 1-19/1-18 Niakuk 2A 4348 psia 2-18/L-16 Niakuk 3A 4040 psia 2-26/N-14 Niakuk 3B/3C 1590 psia 1-33/M-23 MPI 2A 4380 psia 1-61/Q-20 MPI 2B 4603 psia 1-49/P-21 MPI 3A 4704 psia 2-46/Q-15 MPI 36/3C 4930 psia 2-52/S-14 MPI 313/3C 4713 psia 2-58/S-09 MPI 3C 2223 psia 3-11/M-30 SDI 2B 4556 psia 3-15/K-33 SDI 2A 4301 psia 4-50/K-41 SDI 3A 4916 psia 3-05/0-29 SDI 36 4745 psia 4-18/S-30 SDI 3C 4924 psia 1-45/Q-26 SDI 313/3C 5194 psia Notes on 95 Program Substitutions: 1-19/1-18 substituted for 1-01/J-19 Niakuk 2A pressure to minimize production impact. 1-33/M-23 substituted for 3-25/M-27 MPI 2A pressure to minimize production impact. 5/3/96 4:53 PM 95 AOGCC Table 5 1996 KEY WELL PRESSURE MONITORING PROGRAM PROPOSAL ENDICOTT OIL FIELD TABLE 6 Well Area Subzone(s) Comments 1-01/J-19 Niakuk 2A Commingled 2A / 1 pressure 2-18/L-16 Niakuk 3A Single zone high angle well 2-26/N-14 Niakuk 313/3C Commingled pressure. 1-31/M-21 MPI 2A Plug isolating 2A 1-61/Q-20 MPI 2B Single zone high angle well 1-49/P-21 MPI 3A Lower 3A monitor point. 2-42/P-13 MPI 3B Eastern area 2-52/S-14 MPI 313/3C Commingled pressure. 2-58/S-09 MPI 3C Western area 3-11/M-30 SDI 2B Plug isolating 2A 3-15/K-33 SDI 2A 4-50/K-41 SDI 3A Upper & lower 3A monitor point 3-23/N-32 SDI 3B Eastern area 4-18/S-30 SDI 3C Eastern area 1-57/R-23 SDI 3C Western area 1-67/T-20 SDI 3B Western area Notes on changes from '95 to '96 program: 1-09/J-18 removed, sleeve closed, no longer 2B producer, no other candidates. 1-31/M-21 substituted for 3-25/M-27. Cycled well, will probably shut-in. 2-42/P-13 substituted for 2-46/0-15. Now have sole 3B monitor point. 3-23/N-32 substituted for 3-05/0-29. More representative data point. 1-57/R-23 & 1-67lT-20 substituted for 1-45/0-26. Now have sole 3C & 3B wells in SDI mid -field are, 5/3/96 1:25 PM 95 AOGCC Table 6 I Endicott Oil Field 1995 GOC Monitoring Key Well Program Introduction A GOC (Gas - Oil Contact) Monitoring Key Well Program was submitted for the Endicott Field in October 1988, one year after field start-up in accordance with AOGCC Conservation Order 202, 9(c). At that time, BP Exploration sought, and received a waiver (Administrative Approval Order 202.5) from the State of Alaska, to initiate the key well program for Endicott on a subzone basis for each of the three distinct reservoir development areas of the field. Administrative Order No. 232.1 provided an exemption for key well GOC monitoring in Sections 1, 3, 7, 9, 10, and 35 of the field as being outside areal gas cap limits of the reservoir. The key well program for Endicott is based on the understanding of a limited ability to monitor fieldwide, gas cap movement. A scarcity of wells and limited lateral offset from gas severely restricts the use of time lapse cased - hole logging as a viable tool to predict gas movements at Endicott. It is recognized that narrow hydrocarbon corridors caused by a relatively steep 6 degree structural dip combined with sands separated by thick laterally continuous shales promotes under -running as a common gas movement mechanism. In addition to the continuous shales that separate the reservoir into six vertically isolated subzones, major east -west trending fault offsets provide either lateral hydraulic isolation or partial pressure communication between the three main Endicott development areas. Key wells were designed to focus on the 3A and 2B subzones, the more massive high quality sands where more regional GOC effects could be noted. Key wells to monitor gas movement in the 2A (MPI), 3B, and 3C are not practical due to the close proximity to gas and complex stratigraphy (shaliness), respectively. In these cases, it is highly doubtful time lapse logging would provide meaningful data with respect to regional GOC movements. Six key wells were originally proposed and approved for GOC monitoring; 1-01/J-19, 1-09/J-18, 1-27/P-20, 1-29/M-25, 2-04/M-19, 3-01/N-29. Waivers from continued GOC monitoring have been requested for three of the 8 key wells due to gas influx from maturing reservoir depletion. Following are the wells no longer monitored: • 1-095-19 3A gas under -run. • 2-04/M-19 2B gas under -run. • 3-01/N-29 Completed as 3A & 2B producer after waterflood response. Figure 4 is an Endicott well plat showing the six GOC Monitoring Program wells. 1995 GOC Monitoring Program During 1995, a total of 15 cased - hole pulsed and compensated neutron logs (PNL / CNL) were acquired, including the three key well surveys. These logs are routinely used for reservoir surveillance and diagnosing well problems in order to develop reservoir management plans and remedial interventions. Following is a list of the wells from which neutron logs were acquired during 1995: • 1-01/J-19* 2-40/S-22 • 1-05/0-20 3-11/M-30 • 1-27/P-20* 3 -17/J -30A • 1-29/M-25* 3-27/M-33 • 1-35/0-25 3-29/J-32 • 1-47/Q-21 4-26/0-34 • 1-57/R-23 5-02/SD-10 • 2-16/M-16 * Key Wells Table 6 details the history of pulsed neutron log observations in the six GOC key wells, including the 1995 observations. Three of the six original key wells continue to provide useful gas -oil contact movement information, as gathered through time lapsed cased hole neutron logging. Note the use of the CNL is precluded in all wells except 1-27/P-20 due to size restrictions of down -hole completion equipment employed at Endicott. The table also identifies GOC movement and gas influx by under -running major shales within Subzones 3A and 2B. 0 Appendix 7 provides the graphical neutron log overlays of the three remaining GOC Monitoring Key Wells. 1996 GOC Monitoring_ Program The Endicott GOC Monitoring Key Well Program has been successful in establishing baseline and repeat PNL / CNL surveys to monitor and document rates of gas cap movement and gas under -runs in the six key wells. BPX recommends that the 1996 GOC Key Well Program continue with the three remaining key wells; 1-01/J-19, 1-27/P-20, 1-29/M-25. Production logging and down -hole mechanical isolation of gas prone intervals has also provided a means to monitor gas influx. Together, these tools constitute an effective means to monitor gas movement at Endicott. 10 1995 ENDICOTT GOC MONITORING PROGRAM =v` TIGVARIAK FAULT U3 S - �FPVv1-19 1-01 FP 4-38 �PyJ 2-0g Ina -19 � 1 21 3 17 3.03 K-34 J 39 3.49 3-39 • o K-16 _ .. - 2-1 G7 �G K-25 `-+ 4-10 J 30A K-33 J 33 -3 432 3 450 0 pw L-16 1-33 WIPI M-28 3-09 -29 3-2 337 K-38 K-41 1_22 O 3-1 L -28A - L-34 L-3535 ... 2- 6 2-20 1 M-23 3-25 M-1 M-27 3-27 L36 3 t / 2- P-16 2-14 2 `» M-25 -0 -1 0-16 .0 35 2 6 2- 48 -1 -2 0-v 3 2 28 P 20 1 59 N-25 P-17 -1 P•19 Y3 p 24 9n'7 - -64 _ 2_62 ,. 0-20 F Y9 -,, 2 2 4-02 i .G 0-17 - :` � W G 0-21 ' 2- W 2-4 6 10-_ 6 1 0-15 0-21 157 26 2-58 S 9 �I W 5-17 3-19 J, S 14 ,.' R-28 2-50 2401-5 U-08 -70 157 S-22 . T-2 1-03 0 2-60 -1 •�T-22 2 U-13 39 _ 1 1 3'1 0 2-66 02 SD -12 FIGURE 4 M-33 4-20 N :: 4_28 46 3-23 N-37 N-39 N3 3-05 2 -26 W 0-29 034 1 4-06 3.43 ( 442 " I 0 -32 -SDI, P-36 P-38 1' pw 4-18 S30 i 99s 30G WELLS -ffIKKELSEM BAY FAULT 1988-94 GOC KEY WELLS 1988-91 GOC KEY WELL J. L. HAAS 418196 WELL GOC SUBZONE DATE OF BASELINE MONITOR SURVEYS 1 2 3 4 b 8 7 8 9 10 "IM -19 2B 31 -Jan -89 2Jan-90 NM, GUR (2A3) 13 -Feb -91 GCX (6), GUR (2A3) 31 -Jan -91 GCX (4'), OUR (2A3) 29 -Mar -93 NM, GUR (2A3) 28Jul-94 NM, GUR (2A3) 24Jun-95 GCX (3' in 28) , OUR (2A) NM = NO GAS CAP MOVEMENT OUR = GAS UNDERRUN (STRAT. SEC.) GCX = GAS CAP EXPANSION (FEET TVD) ENDICOTT OIL POOL GAS OIL CONTACT MONITORING PROGRAM STATUS REPORT- 12/31/95 TABLE 7 1.09/,148 3A 11 -Jan -88 1-27/P-20 3A 29 -Feb -88, ,' 1-291M-25 2B 3 -Feb -88 ij 14 -Jan -88 21 -Feb -87 i 3 -Feb -88 NM NM (OHCNL) 1 GCX (26)/GUR(2133) 7 1 -Feb -89 9 -May -BB 8 -Aug -88 GCX (4'),GUR(2B5) NM GCX (16') 14 -Feb -90 4 -Aug -88 6 -Aug -89 GCX (10'), GUR(2B5) NM, GUR (2B3) GCX (T) k 24 -Feb -91 12-Apr.89 ( 5 -Sep -90 GCX (T), GUR (2115) NM,GUR (2B3) GCX (6) 16 -Mer -92 17 -Jun -90 25 -Mar -91 GCX (6), GUR (2115) NM, GUR (2B3) GCX (41) 22-Au9.93 4 -Jul -91 17 -Mar -92 GCX(2'), GUR(2B5) GCX (7'), GUR (2B3 / 3A2) GCX (16) 30Jul-94 13 -Jun -92 24 -May -93 NM, GUR (2B5) GCX (91), OUR (2B3/3A2) GCX(16'), GUR(2A3) Waiver j' 26 -Jun -93 }. 29 -Jul -94 3A OUR GCX(6), GUR(3A2) k� GCX (13'), GUR (2A3) t 31 -Jul -94 26Jun-95 GCX (2'), GUR (2113) GCX (5' In 28), GUR (2A3) t 3127/95 2-04/M-19 20 1 -Mar -88 1 -Mar -88 GCX (25') 20 -Mar -89 GCX(35'), OUR (2B2) 16 -Jun -90 GCX(4'), GUR (2A3) 29 -Jun -91 GCX (NM), OUR (2A3) 14 -Jun -92 GCX (2), OUR (2A3) 25 -Jun -93 NM, GUR (2A3) 9 -Jul -94 NM, OUR (2A3) Waiver GURa 3.01/N-29 3Af2B 28 -Feb -88 19 -Feb -89 NM 12 -Feb -90 NM 28 -Feb -91 NM Waiver 5/3/96 1:28 PM 95 AOGCC Table 7 15000 14000 13000 12000 11000 10000 W Q 9000 Z 8000 O H > 7000 D 6000 0L soon 4000 3000 2000 1000 0 SUBZONE 3C MPI PRODUCTION O J A J O J A J 0 J A J O J A J O J A J 0 J A J O J A J O J AJ 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N P L T N R L T N R L T N R L T N R L T N N L T N B 8 B B B 8 B 8 8 8 B B B B B B B 0 8 B 8 8 B 0 B B 0 B 8 B B ] B B B B B B B B 9 0 0 0 1 1 19 9 6 i 2 2 2 2 3 3 3 3 4 4 4 4 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 14000 13000 12000 11000 10000 OJ 9000 6000 Z O Huw Q C6000 m C' 5000 4000 3000 2000 1000 0 SUMNE 3B MPI PRODUCTION O J A J 01 A J O J A J 0 J A J 0 J A J O J A J O J A J O J A J O J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N B B B B B B 9 B B 9 B B B B 9 9 B 9 9 B B B 9 B 9 B 9 8 8 9 9 8 8 8 ] B B e B 8 8 B B 0 0 9 0 1 1 1 1 2 2 2 2 3 3 3 J 4 4 4 4 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 15000 14000 13000 12000 11000 10000 W Q 9000 Z 8000 0 H j 7000 C 0 6000 IL 5000 4000 3000 2000 1000 0 SUBZONE 3A MPI PRODUCTION O J A J O J A J O J A J 01 A J O J A J O J A J O J A J 0 J A J O J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N N L T N n L T N N L T N R L T N P L T N R L T N N L T N N L T N 8 B 8 B B B B B B 8 9 9 9 B 9 9 B 8 9 B B 9 9 9 9 9 9 8 8 9 9 8 8 9 8 9 B B 9 B B B 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 6 6 6 6 fi DATE BP EXPLORATION ENDICOTT OIL FIELD n. r 30000 20000 10000 0 SUBZONE 2B MPI PRODUCTION O J A J O J A J O J A J 01 A J O J A J 0 J A J O J A J O J A J O J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 6 B B B 8 B B B B B B 9 B B 9 B 9 B B B B 9 B 9 B 0 9 9 B B 9 B B B 7 B 0 0 0 B 8 9 B 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 9 6 6 4 fi 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 30000 W Z O 20000 U O O m CL 10000 - 0 SUBZONE 2A MPI PRODUCTION CRUDE STB/D CONDENSATE ST8iD WATER B/D GOR SCF/STB O J A J O J A J O J AJ O J A J O J A J O J A J O J A J 0 J A J O J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L TN R L T N B 8 B 8 B 9 B B B 8 9 9 9 B 8 9 0 B B 9 B 8 B 8 B 8 8 B B B B B B 8 ] 9 B 9 B B B 8 B 0 0 B 0 1 1 1 1 2 2 2 2 3 3 3 3 4 0 4 d 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 4000 W Q 3000 ar 2 O H V 0 0 2000 a 1000 0 MPI ZONE 1 PRODUCTION 0 J A J 0 J A J O J A J 0 J A J 0 J A J O J A J 0 J A J O J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N N L T N N L T N R L T N N L T N N L T N R L T N R L T N N L T N 8 6 8 8 B B B 8 8 8 9 B B 8 9 9 9 9 B 9 B 9 9 B 8 9 8 9 9 B B B B 9 T 8 8 8 8 8 B B 8 8 0 0 0 1 t 1 1 2 2 3 2 9 3 3 3 9 9 9 9 fi 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD z O V D O w CL 30000 20000 10000 0 SUBZONE 3C SDI PRODUCTION CRUDE STEM CONDENGATL sla!o WATER B/0 GOR SCF/STB 0 J A J 0 J A J 01 A J O J A J O J A J 0 J A J 0 J A J 0 J A J O J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 9 B B 9 B 9 B B 9 9 B B 9 9 B 9 B 9 9 9 9 9 9 9 9 B 9 B 9 9 9 9 9 B T B B B B 9 B B 8 0 0 0 0 1 1 1 / 2 2 2 2 3 3 9 9 d 6 4 C 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 200001 19000 18001 17001 16001 15001 1400( 1300( W 9 1200( Z 1100( 0 H 1000L V 9000 0 8000 CC a 7000 6000 5000 4000 3000 2000 1000 0 SUBZONE 3A SDI PRODUCTION CRUDE STB/D C A P U C A P U C A P U C A P U C A P U O J A J O J A J O J A J O J T N R L T N N L T N N L T N N L T N N A P U C A P U C A L T N N L T B B B e B e B B B B e 9 B 9 9 B B N R L T N N L T N ] B 8 B 8 B B 9 B 0 0 0 0 1 1 i 1 2 2 2 2 3 3 3 9 9 B B B 9 9 B B B 3 q 4 q q 6 6 6 6 g DATE BP EXPLORATION ENDICOTT OIL FIELD 400M 30000 SUBZ®NE 2B SDI PRODUCTION CRUDE STBID t}OHDENSATE STWO WATER B/D 10000 0 O J A J O J A J O J A J O J A J O J A J O J A J O J A J O J A J O J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 8 8 0 B 8 8 B 8 B B B 8 B B B B 1 8 B B B B B B B 8 8 B 8 B 8 8 B 8 T 8 B B B B 9 B B 0 0 0 0 1 1 1 1 2 Z 2 2 9 3 3 9 4 4 4 4 6 b 5 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 19000 18000 17000 16000 15000 14000 13000 LLJ 12000 11000 0 10000 F U 9000 C O 8000 CL 7000 6000 5000 4000 3000 2000 1000 0 SUBZONE 2A SDI PRODUCTION u J A J O J A 1 O 1 A 1 O 1 A 1 O 1 A 1 O 1 A 1 O 1 A 1 O 1 A 1 O 1 C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N B • B • B B • B B 9 9 B 9 9 B 9 9 9 9 B 9 B 9 B 9 9 9 B 9 B 9 9 8 ] B 8 B • B B 9 B 0 0 0 p 1 y 2 2 2 3 3 3 4 0 9 6 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 8000 7000 8000 H 5000 9 Z O I.. %uuu V n 0 O a 3000 2000 1000 0 SUBZONE 3C NIK PRODUCTION O J A J O J A J O J A J O J A J 0a A J O J A J O J A J O J A J O J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T NR L T N R L T N R L T N R L T N R L T N R L T N R L T N B 8 B 8 8 9 8 8 8 9 8 8 9 9 B 9 9 8 9 9 9 8 8 9 9 9 9 9 9 B 8 9 8 B B B 8 8 9 9 8 8 0 9 0 9 1 1 1 1 2 3 2 2 3 3 3 3 4 4 4 4 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 7000 6000 5000 W gH t+- 4000 Z O V O3000 2 a 2000 1000 0 SUBZONE 3B NIK PRODUCTION CRUDE STRJD w P U C A P U C A P U C A P U C A Pa J ® C A A U Q A T N R L T N R L T N R L T N R L T N R L T N R L T p R B 9 9 9 9 9 3 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 1 2 2 L S 9 ' L T T 9 8 8 9 9 9 9 9 9 9 0 0 1 1 1 2 2 3 3 3 3 S 4 t S 5 9 6 9 9 DATE BP EXPLORATION ENDICOTT OIL FIELD '60001 15000 14000 13000 12000 11000 H 10000 9000 Z O H 6000 V p 7000 O a 6000 5000 4000 3000 2000 1000 0 SUSZONE 3A NIK PRODUCTION CRUDE RTR/D O J A J O J A J O J A J O J A J O J A J O J A J O J A J O J A J O J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 8 9 9 B 6 B 9 6 9 9 B 9 9 B 9 9 9 9 B 9 9 9 9 B B 9 9 B 9 8 9 8 B 8 ] B 6 B 9 8 9 8 B 9 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 16000 15000 - 14000 13000 12000 11000 LL, 10000 9000 Z O H 9000 V p 7000 O a 6000 5000 400D 3000 2000 1000 0 SUBZONE 2B NIK PRODUCTION CRUDE STB/D O J A J O J A J 0 J A J O J A J O J A J 01 A J 0 J A J O J A J O J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N B B 8 B B B e B B 8 8 9 8 B 8 9 B 9 B 9 9 8 9 9 B 8 B B 8 B 9 8 8 B ] B 8 B 8 9 B B B 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 fi 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 6000 7000 6000 H XW r: Z 5000 O U C 4000 O CL 3000 2000 1000 0 SUBZONE 2A NIK PRODUCTION O J A J O J A J O J A J 0 J A J O J A J 0 J A J O J A J 0 J A J O J CA P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 9 9 B 9 9 B 9 9 9 9 9 9 9 9 9 9 B 8 9 9 9 9 9 9 9 9 9 9 9 9 9 9 8 9 7 9 9 9 9 9 9 8 9 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 d d d d 6 5 5 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD NIK ZONE 1 PRODUCTION O J A d O J A J O J A J O J A J O J A J O J A J O J A J O U A J O d C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N B 9 9 B B B 8 B B 8 8 B 9 9 B 9 B 9 9 B 9 9 9 9 8 9 9 B 9 9 B e B 9 7 B B B B 9 9 9 B 0 B 9 0 1 1 1 1 2 2 2 2 3 3 J 3 4 9 4 9 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 12000 i 11000 10000 I m N 9000- v ® 8000- US m w p 7000- U Lu m w 6000 a a U 5000- w 4000- 000- U 2000- 1000- W, SUBZONE 3C MPI CUMULATIVE CRUDE PRODUCTION 0 J A J 0 S A J 0 J A J 0 J A S 0 J A J 0 J A J 0 J A J 0 J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C ,A P U C A P U C A T N R L T N R L T N R0 L T N R L T N R L T N R L T N R L T N R L T N 7 B 8 8 B 99 990 8 8 8 8 8 8 9 9 90 90 1 9 1 91 12 9 2 9 2 2 9 3 9 J 9 3 ) 9 94 9 9 99 9 9 5 9 95 5 5 6 59 9 9 9 DATE 35 cT v m m 0 25 z 1 m m n 20 0 m m m v � 5 0 O O v 10 5 I BP EXPLORATION ENDICOTT OIL FIELD I r v Lu cc Lu O U w a La 0 cr 0 Lu a v 0 SUBZONE 3B MPI CUMULATIVE CRUDE PRODUCTION 0 1 A C 0 S A 1 0 S A S 0 1 P. 1 0 1 A S 0 2 A 1 0 1 A 1 0 3 A 1 0 1 C A P U C A P U C A P U C A P U c A P U C A F U C A P 0 CP U C A T N P L T N R L T N R L T N R L T N R L T N R T N R L T N R L T N 8 8 d 8 8 8 8 8 8 3 9 9 9 9 9 9 9 9 9 o 0 0 9 � 9 4 9 9 9 9 8 9 8 8 9 9 9 9 0 0 0 0 1 1 1 1 2 _ 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 DATE [o] 35 30 v m n 25 z -I m 0 2C O m m v 15 a 0 0 10 I ul BP EXPLORATION ENDICOTT OIL FIELD 30000- m I -- U) g W 20060- ¢ w O U LU cc w c a u w a a U SUBZONE 3A MPI CUMULATIVE CRUDE PRODUCTION 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 8 8 8 9 B 8 8 8 8 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 7 8 8 8 8 9 9 9 9 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 1H;rA0 wo 35 3G m x n 25 z m m n 20 O m m m v 15 e O O 10 5 11 L'. BP EXPLORATION ENDICOTT OIL FIELD 40000- m N 1 30000 2 n w Lu O U w rc Lu U Lu r g 2 D L) 0- SUBZONE 2S MPI CUMULATIVE CRUDE PRODUCTION 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J. 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N IL T N R L T N R L T N R L T N R L m N R L T N R L T N 0 8 8 8 8 8 B 8 8 9 9 9 9 9 9 9 9 9 9 ^ 9 9 9 9 9 9 9 7 8 8 A 8 9 9 9 0 0 0 0 1 1 1 1 2 3 2 2 7 J 1 3 4 9 9 4 5 5 5 5 a DATE 40 35 30 mm n m z q 25 m C O m 20 m n O m m 15 o 10 5 0 BP EXPLORATION ENDICOTT OIL FIELD m cn N 2 w cc w a O U w Lu b a t� w V 10000 n SUBZONE 2A MPI CUMULATIVE CRUDE PRODUCTION 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J 4 J 0 J A J 0 J A J 0 J C A P U C A P U C A P U C A P U C P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 8 8 8 8 8 8 8 9 B 9 ° 9 9 5 a g a g o a 9 a a 9 49 49 9 94 9 9 9 9 9 7 8 8 8 8 9 9 9 0 U 0 0 1 1 1 1 _ i 2 ? 1 3 7 3 4 4 9 i 5 5 5 5 6 DATE m 35 v 30 m n m z 25 0 C O m 20 m n O m m 15 G 010 10 8 .. 5 F BP EXPLORATION ENDICOTT OIL FIELD 900 800 I M 700 H N Lo 600 m w O U w 0 400 U Lu g co g U 200 100 Fl. MPI ZONE 1 CUMULATIVE CRUDE PRODUCTION 0 J A J 0 J A J 0 J A. J 0 J A J 0 J A J 0 J A J 0 J A J J J A J 0 J C A P U C A P U C A P U C P. P U C .A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T R R L T N R L T N R L T N R L T N R L T N 8 8 8 0 0 8 8 0 0 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 4 9 9 9 9 7 8 0 8 8 9 9 9 9 0 0 0 0 1 1 1 1 2 2 3 2 3 2 3 3 4 4 4 4 5 5 5 5 6 DATE 40 35 M 30 mm n m z 1 25 m c v m 20 m n O m m 15 v e O O 10 a v BP EXPLORATION ENDICOTT OIL FIELD 40000 - m c LOO g v Lu Q Lu O U Lu 2 Lu 0 U Lu g U 0- SUBZONE 3C SDI CUMULATIVE CRUDE PRODUCTION 0 J A J 0 J A J 0 J A J 0 J 4. J 0 J A J 0 J A J 0 J A J 0 J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N IL T N R L T N R L T N R L T N 8 8 8 8 B 8 B 8 B 9 9 9 9 9 9 9 9 9 q 9 9 9 9 9 9 9 9 9 9 q q 9 q q 7 8 8 8 8 9 9 9 9 0 0 0 0 1 1 1 1 3 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 0 DATE 40 35 T v m m 0 25 z 1 m 0 20 < m m m 0 15 R 10 5 no BP EXPLORATION ENDICOTT OIL FIELD 8000 7000 I W 6000 g 0 w w 5 0 O U Lu Ir W 4i 0 n o¢ U Lu > 3Cnn g U I SUBZONE 3B SDI CUMULATIVE CRUDE PRODUCTION UC A P U C A P U C A P U C C A P U C A P U C A P U C A P U CC C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 8 8 8 8 8 9 8 8 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 7 8 8 R 8 9 9 9 0 0 0 0 I 1 1 1 2 2 2 2 7 J 3 i 9 9 9 4 5 5 5 S o DATE ED 35 30 V m m n 25 z m 0 20 m m m O 15 0 O O IN 5 0 BP EXPLORATION ENDICOTT OIL FIELD 200y-86- 19000 18000 17000 16000 m N 15000 14000 v � 13000 w >O 12000 w 11000 w W 10000 0 :3 9000 m U 8000 W > 7000 a 6000 5000 U 4000 3000 2000 1 00 0 0 SUBZONE 3A SDI CUMULATIVE CRUDE PRODUCTION C A P p C A P ❑ C A P 0 R. A P U C A P U C A P U Q A P U 0 A P U C A T N A L T N R L T N R L T N R L o IV ft L T N R T N R L T N R L T N 8 8 B 8 8 R B 8 8 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 7 8 B 8 B 9 9 9 0 0 0 0 1 1 1 1 2 2 2 3 3 3 3 3 4 4 4 4 5 5 5 5 6 DATE 40 35 �0 m m m n 25 z m m n 2G Oc m m m O 15 O O 10 L It, BP EXPLORATION ENDICOTT OIL FIELD SUBZONE 2B SDI CUMULATIVE CRUDE PRODUCTION 0 J .A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L m N R L T N R L T N R L T N R L T N 8 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 7 8 8 8 8 9 9 9 9 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 DATE m 35 30 M m n 25 z -I m n 20 m m m v 15 0 O O 10 9 I BP EXPLORATION ENDICOTT OIL FIELD m H Lu crw O U Lu w v cc U w 2 u tilioilm 0 SUBZONE 2A SDI CUMULATIVE CRUDE PRODUCTION 40 35 30 M m m n 25 z 1 20 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 8 8 II 8 8 6 B B 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 7 8 8 8 8 9 9 9 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 i 6 DATE 10 A 0 BP EXPLORATION ENDICOTT OIL FIELD m r N g Lucc Lu O U w ff Lu cc w > c� SUEZONE 3C NIK CUMULATIVE CRUDE PRODUCTION 0 J .A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J C A P U C A P U C .A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 8 8 B 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9 9 9 9 9 9 o g 9 q o q e g e 9 q 7 8 8 8 8 9 9 9 9 0 0 0 0 1 1 1 1 2 2 2 2 3 J J 7 9 9 4 d 5 5 5 5 6 DATE 6 35 30 m m m n 25 z m n 20 0 m m m 0 15 0 O O 10 5 C BP EXPLORATION ENDICOTT OIL FIELD 1300 1200 1100 m 1000 F- N g .. c 900 Lu > 800 O U ¢ 700 w a 600 ccU w 500 400 a g U 300 200 100 A SUBZONE 3B NIK CUMULATIVE CRUDE PRODUCTION 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C .4 P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 8 8 8 8 8 8 8 B 8 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 7 8 9 8 8 9 9 9 0 0 0 0 1 1 1 1 ? 19 2 ? 3 1 3 7 9 9 4 4 5 5 5 5 8 DATE 4G 3G m m m n 25 z m n 20 0 m m m 0 15 O O 10 kN ul BP EXPLORATION ENDICOTT OIL FIELD 13000 12000 11000 00 10000 N C 9000 Lu m ui 8000 O U Lu 7000 w 6000 at U Lu 5000 4000 a 2 V 3000 2000 1000 0 SUBZONE 3A NIK CUMULATIVE CRUDE PRODUCTION 40 35 3 0 V m m 0 25 z m m 0 20 0 m m m 0 15 e O O v 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J C .A P U C A P U C A o U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N e d d 11 8 1 8 8 9 9 9 9 9 4 9 9 5 9 9 9 9 9 9 9 9 7 8 8 9 8 9 9 9 9 0 0 0 0 1 1 1 1 2 2 2 2 1 3 3 3 4 4 4 4 5 5 5 5 6 DATE G m BP EXPLORATION ENDICOTT OIL FIELD 3,.,__ 0 Lu tr Lu O U Lu ir Lu a U W > N 7 I SUBZONE 2B NIK CUMULATIVE CRUDE PRODUCTION m N g 0 d A S 0 S A S 0 J A J 0 J A S 0A J 0 1 A J u J A J 0 J A J 0 S C A P U C A P U C A P U C A P U C A P U A P U C A P U C P. P U C A T N R L T N R L N R L T N R L ? i L m N R L T N P. L T N R L T N 8 B e 8 8 B B 8 6 9 9 9 9 9 9 9 9 9 y 8 .. 8 9 9 9 9 0 0 0 0 1 1 1 1 _ 2 2 2 J 3 3 3 9 4 4 4 5 5 5 5 6 DATE 40 "5 till v m m n 25 z -a m n 20 0 m m m O 15 O O Of 5 m BP EXPLORATION ENDICOTT OIL FIELD m r N v 0 LU Ec Lu O U W a Lu 0 Cc u Lu N U 11000 10000 9000 BOOL 7000 0000 5000 4000 2000 1000 0 SUBZONE 2A NIK CUMULATIVE CRUDE PRODUCTION 0 S A J 0 J A S J J A S 0 J A J 0 J A J 0 S A J 0 J A J 0 J A J 0 J C A P U C A P U C A P U C A P U C A P 0 C A P U C A P 0 A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R R T N R L T N 8 6 9 8 8 8 8 8 8 9 9 9 9 9v 9 9 9 9 9 9 9 9 9 9 9 9 7 8 8 8 8 9 9 9 9 0 0 0 0 1 L 1 I 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 DATE we 35 30 m m n 25 z I m m n 20 0 m m m v 15 O O 10 5 on BP EXPLORATION ENDICOTT OIL FIELD m N g 0 Lu Lu a 0 U Lu W D U W H g g U NIK ZONE 1 CUMULATIVE CRUDE PRODUCTION 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N II 8 R 8 8 8 8 8 9 9 9 9 9 9 9 9 9 9 9 9 n 9 9 9 9 9 9 9 9 q 9 9 9 7 8 8 1 8 9 9 9 9 0 0 0 0 1 1 1 1 2 2 2 2 J J 1 J 4 4 4 4 5 5 5 5 6 DATE o 35 m 30 A n m z 1 25 0 c 0 m 20 m 0 0 m m m 15 v 0 0 0 10 L 0 BP EXPLORATION ENDICOTT OIL FIELD 12000— i 11000- 1000- 10000- 10000- 9000— ED 9000— m m g 8000- Lu N J - cc 7000 — OC Q ED 6000 — N w 2 W 5000- 4000- :D 000- 4000- g U 3000 2000— 1000— SUBZONE 3C MPI CUMULATIVE VOIDAGE BITIla m N 3500 C .o V 3000 m m N N C m 2500 m co) 1500 0- - 1000 0 J A J 0 J A J O J A J 0 J A J 0 J A J O J A J O J A J 0 J A J 0 J C A 0u C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 9 9 8 8 9 6 B 8 9 9 8 9 9 8 9 9 9 B 9 9 9 9 9 9 8 9 9 B 9 8 8 B B B B 8 8 9 B 9 9 8 0 0 0 0 1 1 1 1 2 2 1 2 3 3 ] 3 4 4 4 4 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 5000 - 400( 300( 200( N J m loo( N ( J Lu w —1000 ccm -2000 of w M —3000 W —4000 � —5000 U — 6000 —7000 —8000 —9000 SUBZONE 3B MPI CUMULATIVE VOIDAGE f F 5000 4500 4000 C A P U A P U C A P • w J o J A J O J A J O J A J O J A J O J A J O J C T N R L T R C A P U C A P U C A P U C A P O C A P U C A N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 9 9 9 B 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 7 9 9 9 9 9 9 9 9 9 9 a 9 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 6 6 6 6 6 DATE m m W 3500 M 3000 7m0 m En N C 2500 m co co r11� 1500 iftYll BP EXPLORATION ENDICOTT OIL FIELD 10000- ME 0000- ME N J m -10000- n N J Lu M -20000 - Q m ui Lu CC -30000 - ul h � -40000- M U - 50000 - SUBZONE 3A MPI CUMULATIVE VOIDAGE ++ A .i * l* 1C m HII m m U) 3500 C �__-j 3000 M m CA N C 2500 m N K41411M k -60000- 1000 I I I I I I I 0 J A J O J A J O J A J O J A J O J A J 0 J A J O J A J 0 J A J O J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N N L T N F L T N N L T N R L T N N L T N R L T N N L T N N L T N 8 8 B 9 9 9 8 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 7 9 9 9 9 9 9 9 9 0 0 0 9 1 1 1 1 2 Z 2 2 3 3 3 0 4 4 C 0 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD SUBZONE 2B MPI CUMULATIVE VOIDAGE 10000- 0- Lu 0000- 0-W m Or a m vi W m W a g 10000- M U - 5000 *- 4500 :.1 15, m N 3500 Imp C -o 3000 M m N N C m 2500 m CA K$Tlilm 1500 —20000- 1000 O 1 A 1 O 1 A 1 O 1 A 1 O J A J O J A 1 O J A 1 O 1 A J O 1 A 1 O 1 C A P U C A P U C A PU C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 9 B 9 9 9 B 9 B B B 9 9 9 9 B 9 9 9 9 9 9 9 9 9 9 8 9 9 9 9 9 B 9 9 T B B 9 8 9 9 9 9 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 20000- 10000 0000- 10000 - m m N J W 0= 2 a m 0 ui W CC W g U -10000 - SUBZONE 2A MPI CUMULATIVE VOIDAGE 7k' + m lL E 1 4500 —20000- 0 20000-O J A J O J A J 0 J A J O J A J O J A J O J A J O J A J 0 J A J O J C A P U C A 0u C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N B 8 8 8 8 B 8 8 B 8 8 9 B 8 8 B B 9 B 8 B 8 99 B 8 B 9 8 9 9 9 9 T 8 8 8 B 8 B 9 8 0 0 0 0 1 1 1 1 2 3 2 2 3 3 3 3 4 4 0 4 6 6 fi 6 6 DATE a.1 1.e m N 3500 m O F. 3000 m m w co) C m 2500 m N K11111m 1500 F BP EXPLORATION ENDICOTT OIL FIELD MPI ZONE 1 CUMULATIVE VOIDAGE BP EXPLORATION ENDICOTT OIL FIELD 1700- 700-1600 1600- "ee*..mem 1500- 500-1400 1400 N 1300 - J m m 1200 - _ 1100 - N J 2 1000 m 900 - W 800- I W ]00 - a 600 g - 500 - U 400- 00-300 300 200 - 100- 0- O J A J O J A J O J A J 0 J A J O J A J 0 J A J O J A J O J A C A P U C A P U C A P U C A P U C A P U C A P U C A P U J 0 J T N N L T N N L T N N L T N P L T N N L T N C A P U C A 8 8 B 8 B 8 B 8 B 9 8 9 8 9 9 N L T N N L T N N L T N B 8 8 8 9 9 B 9 0 9 9 B 9 9 9 B 9 9 B 9 9 9 9 9 9 9 B B 0 0 0 i 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 B 5 5 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 30000 — J m m 20000 N J W m 0: m N W D: W H g 10000 U a SUBZONE 3C SDI CUMULATIVE VOIDAGE 0 C_7 1 IF fioao 0 sow - 0 J A J O J A J O J A J O J C A P U C A P A J 0 J A J O J A J 0 J A J O J A J 0 J U C A P U C A P U C A P U C A P U C A P U C A P U C A T N A L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 0 9 9 B 9 9 B 8 B 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 T 9 9 9 9 9 9 9 9 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 4000 m m N m asoo m m — �e9 m m N N C m m zaoo 0 sow - 0 J A J O J A J O J A J O J C A P U C A P A J 0 J A J O J A J 0 J A J O J A J 0 J U C A P U C A P U C A P U C A P U C A P U C A P U C A T N A L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 0 9 9 B 9 9 B 8 B 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 T 9 9 9 9 9 9 9 9 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD SUBZONE 3B SDI CUMULATIVE VOIDAGE 8000- 7000 000- 7000 NI 6000 m m 5000- w Q m a000 vJ w w H3000 g D 2000 - C) 1000 - Z O J A J O J A J 0 J A J O J A J O J A J O J A J 0 J A J 0 J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N B B B B B B B 8 B B 9 9 9 8 8 B B B 9 9 9 9 9 99 9 9 B 8 9 9 9 9 9 T e B B B 9 9 9 9 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 fi fi 5 6 6 DATE bB99 m m U) m ss99 m O v 3900 m m w N C m m N 2" BP EXPLORATION ENDICOTT OIL FIELD SUBZONE 3A SDI CUMULATIVE VOIDAGE 30000- * * 5000 ♦ * 4500 L J 20000 — 1 7C 4000 m m � y 7C m N 1 * - 3500 m Lli m * _0 Q m m 10000 - 3000 C6 W m co) m N w C r -- 2500 m � N U° 2000 1500 -10000- 1000 O J A C A P J O J A J U C A P U 0 J C A AJ P U O J A C A P J 0 U C J A A J 0 J A J O J A J 0 J A J O J T N R L T N R L T N R L T N R L T N P U R L C A P U T N R L C A P T N R U C L T A N P U C R L T A N 6 6 8 ] B 6 8 B B B 6 8 B B B B 6 8 B B 6 8 9 B B 9 9 8 B 9 B B B B 8 8 B B 9 8 8 B B B p p p 1 2 2 2 2 3 3 3 3 4 4 4 4 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 40000- 30000 0000- 30000 0] 0] ch J Lu m Q 00 20000 Luw m w g D 10000 U 0 SUBZONE 2B SDI CUMULATIVE VOIDAGE 5000 F - 4500 0 4 A 4 0 J A J 0 J A J 0 J A J O J A J 0 J A J 0 J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N N L T N R L T N P L T N R L T N R L T N R L T N e 9 8 8 9 9 8 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 8 9 9 9 9 9 9 9 9 9 9 T 8 9 8 9 9 9 8 9 9 9 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 6 6 6 6 6 DATE •$17 m m w 3500 Imo O �-v1 10 3000 m N C m 2500 m w 1500 nJ BP EXPLORATION ENDICOTT OIL FIELD 40000 - I J 30000 m 0] g cn J W Q 2 m z0000 ui Lu Or W g _ = 10000 U 0 SUBZONE 2A SDI CUMULATIVE VOIDAGE 4500 1 0 J A J 0 J A J O J A J 0 J A J 0 J A J O J A J 0 J A J O J A J O J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N B B 8 B B B 8 8 B B B 8 8 8 B 8 8 B B 8 B 8 B B 8 B 8 8 B 8 B B 8 8 T B B 8 B 8 8 8 B B 8 8 8 1 i 1 1 2 2 2 2 3 J 3 9 6 0 e 6 6 6 6 6 6 DATE �j� m m N 3500 m O 3000 m N N C 2500 m U) KXl 1500 1111117 BP EXPLORATION ENDICOTT OIL FIELD 5000 - 4000 I U) J m m g v N LLI 3000 m 0: m m C6 Lu m > 2000 U 1000 0 SUBZONE 3C NIK CUMULATIVE VOIDAGE 91 o J A J C J A J O J A J O J A J 0 J A J O J A J 0 J A J O J A J O J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N q L T N R L T N R L T N R L T N R L T N R L T N A L T N R L T N B B 8 8 e B B 8 e 8 8 B B 9 B B B B 9 B 8 B B 8 8 8 B B B B B B B B ] e 8 B B 8 B 8 9 p 0 p p 1 2 2 2 3 ] 3 4 d 4 9 6 6 6 6 6 DATE m m N 3500 m O 3a 3000 7m0 m N N C 2500 m v N =41 m BP EXPLORATION ENDICOTT OIL FIELD 1500- 1400- 1300 500_1400-1300 1200 - I cn J 1100 - m m 1000 2 en J 900 W Ir 800 Q m 700 - W m 600 - lu 500 H 400 U 300 100 0 —100 SUBZONE 3B NIK CUMULATIVE VOIDAGE 0 J A J O J A J O J A J 0 J A J O J A J 0 J A J O J A J 0 J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 0 8 B 9 8 9 B 9 B 9 8 8 9 9 9 9 8 9 9 9 9 8 9 8 9 9 8 9 8 9 8 9 9 8 T 8 9 9 8 8 9 9 9 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 d 9 4 6 1 6 6 6 DATE P7,17, D m N 3500 Imo 0 .D 3000 m m N N C 2500 m N 111 1500 m BP EXPLORATION ENDICOTT OIL FIELD 20000 19000 18000 17000 16000 .s J 15000 m M 14000 13000 (n LLI 12000 rr a11000 m 10000 C6 � 9000 W 6000 2000 Z) 6000 D 5000 L) 4000 3000 2000 1000- 0 000-0 SUBZONE 3A NOK CUMULATIVE VOIDAGE O J A J O 1 A J O J A J 0 J A J O J A J O J A J 0 J A J O J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N N L T N N L T N N L T N R L T N R L T N R L T N N L T N N L T N 9 8 9 6 8 6 6 6 9 19 9 9 99 9 B 9 9 9 9 B 9 9 9 9 9 9 9 9 9 9 9 9 9 ] 9 9 9 9 9 9 9 9 9 9 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 6 6 6 6 6 DATE 111 m m N 3500 m e 0 3000 m N rn C m 2500 m CDv 1 1500 BP EXPLORATION ENDICOTT OIL FIELD 13000- 12000 3000-- 12000 - 11000- 10000 1000-10000 - iNN. ..i 9000 - v In 8000 i W ir 7000 - a GO 6000 - ui w m 5000 - w - 4000 M g 3000 U 2000 - 1000 - 0 SUBZONE 2B NIK CUMULATIVE VOIDAGE 111 1.1 w m N 3500 m C 6 m 3000 m m N 1n C m 2500 m m cn 1500 -1000- - 1000 O J A U 0 J A J 0 J A J O J A J 0 J A J 0 J A J O J A J 0 J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T NR L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N 6 6 8 9 8 8 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 8 9 9 9 9 9 9 9 9 T 9 8 9 9 9 8 8 9 0 0 0 0 1 t 1 1 2 2 2 2 3 3 3 3 4 4 4 4 6 6 6 6 6 DATE BP EXPLORATION ENDICOTT OIL FIELD 11000 -- 1 100 90 SUBZONE 2A NIK CUMULATIVE VOIDAGE b" J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J O J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N B 8 B 8 8 8 B 8 8 8 9 8 B B B 2 B 8 B 9 8 3 3 B B B B 8 8 9 B B B 9 6 6 6 6 fi DATE • 11 m m N 3500 Imo e 0 X21 3000 M m w U) C m 2500 m 171— 1611TI1] BP EXPLORATION ENDICOTT OIL FIELD u) y J 000 - 8000- 70W 70W - W n: 6000- 000- Lu W 5000 W 4000 g a 3000 U n FF 000- 2000- loon loon n m m o co co `4 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J 0 J A J O J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N R L T N B 8 B 8 8 8 B 8 8 8 9 8 B B B 2 B 8 B 9 8 3 3 B B B B 8 8 9 B B B 9 6 6 6 6 fi DATE • 11 m m N 3500 Imo e 0 X21 3000 M m w U) C m 2500 m 171— 1611TI1] BP EXPLORATION ENDICOTT OIL FIELD NIK ZONE 1 CUMULATIVE VOIDAGE I J m m M N J W cc m m 0 - NYNI�SiO®t��•�N�NiIN�N�®i6�®i0�. Lu W Or W h g M M D L) O J A d O J A J O J A J 0 J A J 0 J A J 0 J A J 0 J A J O J A J 0 J C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A P U C A T N N L T N R L T N R L T N R L T N R L T N N L T N N L T N N L T N B B 6 B 6 B B B B B B 8 B B 8 B 8 B e e B e B B 9 8 B B e e B B e B 7 8 B B B 8 8 B 8 0 0 0 0 1 1 1 i 2 ] 2 2 3 3 3 3 9 I 4 I 6 6 6 6 fi 11r iz BP EXPLORATION ENDICOTT OIL FIELD Injection Rate by Day 01/01/87 to 01/01/97 114��5L(L2fl 130000 120000 110000 100000 C3 90000 80000 70000 60000- 50000- 40000 00005000040000 30000 20000 10000- 1987 1988 1989 ��■J �I■IN �I A ■IN �V�h�.��■�IIfI�f Nl�l II�IIIIII � I� I■IIIII■I �l�il�?ill JII�IIIiII�■■ill�� it �1��,I,w,, IIIII, �V} II III�I� Ill li ��I� 19111�WII �IIIIVVIII I IIIVYIJ�� I II■IIS II I ■ I I 91■ II■1 �J�Ill�lll�►il! IIJIN� �Y� Nom; ,� Imo; 1111111110 ��IIIIIII� ,JIIIIi�I�IIlIl1l ILII �11��1��1,I �J�II��lil■JINIIIII �■i�VlVl�l��I1 ��■■■II�111�11■I■I■�1� IIW'�IIII�II�■hII VJI I V Jll�l� 11 lWIIIJII ��IJII I oil �IIIIIII!fl I II �j J rn GAS INJ RATE GI AVG W 5000 111 - 3000 - 2000 1990 1991 1992 1993 1994 1995 1996 1997 ---------- AVG WHP V -A PW X - MI �$ S W PFI 161 '14000D 130000 120000 110000 U 100000 cCS 90000 80000 O 70000 60000 U U 50000 40000 I� 30000 20000 10000 Injection Rate by Day 01/01/87 to 01/01/97 'I I Al AL if 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 1 I I I I I I I I I I Ili � I I I I I I I I I I ii I I t' I I I I I I I I 1 f 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 j 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 7 I I 089 199U 1991 1992 1993 1994 1995 1996 1997 ---------- AVG WHP V --A PW # SW AVG W 5000 4000 111 2000 1000 0 Q1 N fn 0 GAS INJ RATE n0 GI o -r- ---------- AVG WHP V --A PW # SW AVG W 5000 4000 111 2000 1000 0 0 rn 1988 N cn O No 0= STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 I I I I I I I I I I I I I I I I I I I I I 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 Avg WHP (PSIG) 1994 1995 - Inj Index (BPD/PSI 20 10 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 Avg WHP (PSIG) 1994 1995 - Inj Index (BPD/PSI 20 10 STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 toll i 0 1 N m \0 N 0 o= lyay 1y9V 1991 1992 1993 1994 1995 Water Inj Rate (BPD) Avg WHP (PSIG) 30 10 �. 1 Inj Index (BPD/PSI 0 1 N m \0 N 0 o= lyay 1y9V 1991 1992 1993 1994 1995 Water Inj Rate (BPD) Avg WHP (PSIG) 30 10 �. 1 Inj Index (BPD/PSI STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 20000 —— j j 30 I I I I I I I I I I I j I I I I I I I I I I j I I I I I I I j I j 20 10000 I I I I j I I I I I I I j I I I I I I i I I I I I I I j I 10 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 0- 0--------------- 1988 1989 1990 1991 1992 1993 1994 1995 1996 N w \0 N 0 Water Inj Rate (BPD) ---------- Avg WHP or g (PSIG ) - Inj Index (BPD/PSI t CD 0 rn 1988 N cn 0 N 0 0f STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 1994 1995 Avg WHP (PSIG) Inj Index (BPD/PSI 20 to 1 0 I II I I I I III � II I I I I I I I I I I I I I I I I I I I I I I I JY I { F. I I y;.�•i,„'„� �d �, ,I .i � I I 'r`,:'>�'�';'.r}e ?YN'u�y �', I I I Itll ��:;`� �_� ri�Md ��•�I I I � r ��f. ��l�l�i � � f?� I i 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 1994 1995 Avg WHP (PSIG) Inj Index (BPD/PSI 20 to 1 0 STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 I I I I I I II I I I I I I I I I I I II I I I I I II 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 I I I I I I I I I I I I i i I I 0- 1988 N U) \o N o O L 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 1994 1995 Avg WHP (PSIG) - Inj Index (BPD/PSI 30 20 10 1.1.61, 1111 Lo 0 � 1700 N cn \o N O o= STATE REPORT Inj Rate / Avg Whp / Inj Index (1i MI /Q 52 t-,-% V) ioc 30 20 10 tyay 199U 1991 1992 1993 1994 1995 Water Inj Rate (BPD) -- Avg WHP (PSIG) Inj Index (BPD/PSI 03 04 0 U Injection Rate by Day ��j 01/01/87 to 01/01/97 2SOWO 140000 130000- 120000- 110000 30000120000110000 100000 90000 80000 - 70000 60000 50000 40000 30000- 20000- 10000 0000 20000 10000 01 � ,�II�',I!h"��I1111��V�i�h ��VYI�OI�I�J■1111 fl1■Wills �� 1111, IV111111111m iJYf SII � lm Will ,I�I�11I�IIVVIIIIfI1i��1��■��IIIIII,�i11�,, I�V��11 11111 VIII V 111111 11111111 �I W111�11■�Y�� I,��IIIII,111 IV��I1VI III11111�,, 1� �1 IIIIIIm, Y� 11111 �■ I'I I..... �4�I� lif �■ I�■!11�111';�1�1^ ,11►111"��111V�I■II�I'rl��llll■"�11111■11 ILII � 111111, W111■I�I111'■i�11 �■1■III■I■I■111■I'�I11■ IV f J1 II111� IJI■I IV1111■ ■■1111 ■mil 11 AVG W 5000 4000 111 sm 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 GAS INJ RATE /- -/ GI ------ AVG WHP V --A PW X -----X MI # S W 111 ?40001T 130000 120000 110000 U 100000 Cl 90000 80000 O 70000 +-+ 60000 U U 50000 5 40000 I--1 30000 Injection Rate by Day 01 /01/87 to 0 1/0 1 /97 I I I I I I I I 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 I I I I I I I II I I I I I I I I I I I I I i i i I II I I it 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 I I II I I I 1987 1988 1989 LO rn \- CO•, N rn �, o GAS INJ RATE NO 0 GI 0-1-- 1990 1991 1992 1993 1994 1995 1996 AVG WHP � --A PW #- S W AVG W 5000 111 111 0 1997 STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 20000 - - I I I I Iq I I i I 1, I I I I }{ i I I I y. 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 Avg WHP (PSIG) 1994 1995 Inj Index (BPD/PSI 30 20 10 STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 20000-2211-14 1 ii I I i i i I i I 1 30 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 I I I I I I I I I I I I I 20 10000-1 I I I I I I I I 1 I I I I I I I I I I I I I I I I I I I I I I 10 I I I I I O 0 1988 1989 1990 1991 1992 1993 1994 1995 1996 N cn �,0 N o Water Inj Rate (BPD) ---------- Avg WHP (PSIG) - Inj Index (BPD/PSI o� STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 20000 I I 30 20 10000 10 O AM I I II I I I I I I I I I I I I I 4 I I 0 1988 1989 1990 1991 1992 1993 1994 1995 1996 N U) 0 N 0 Water Inj Rate (BPD) Avg WHP (PSIG) Inj Index (BPD/PSI 0= STATE REPORT Inj Rate / Avg Whp / Inj Index 14 01/01/88 to 12/31/95 20000 — — cc 0 1988 N rn \ 0 N 0 o= 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 I I I I I I I I I I II I I II I I I i I I I I I I I I I I 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 1994 1995 --------- Avg WHP (PSIG) 9 20 10 .0 - Inj Index (BPD/PSI STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 I I j 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 j I I I I I I I I I 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 I I I I I f 1 I I � I ' �,ir � ,, !,�'ta} n''� PIf M,,• �� II i i I I 1989 1990 Water Inj Rate (BPD) 1991 1992 1993 --------- Avg WHP (PSIG) 1994 1995 Inj Index (BPD/PSI 30 Rol 10 167 ZA VLSI STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 I i I I I I I I I I I I I � I � I I I i I I I 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 -------- Avg WHP (PSIG) 1994 1995 Inj Index (BPD/PSI 30 20 10 STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 20000 30 20 10000-1 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 I I I I I I I I I 1 1 I I I I I I I I I I I I I 10 0 I 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 1 I 1 0 1988 1989 1990 1991 1992 1993 1994 1995 1996 N to \ O N o Water Inj Rate (BPD) Avg WHP (PSIG) Inj Index (BPD/PSI os L 0 rn 1988 N cn \ O N o CD= STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 I I I I I I I I i I ' �I 81 1I ` , Alll I i I 111 I 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 1994 1995 Avg WHP (PSIG) Inj Index (BPD/PSI 30 20 10 LO rn 1988 N m \0 N 0 O L STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 1994 1995 Avg WHP (PSIG) Inj Index (BPD/PSI 30 20 10 1 � I I I I I I I I I I I I II I I I i I f �� I �•I I�� I i� I I 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 1994 1995 Avg WHP (PSIG) Inj Index (BPD/PSI 30 20 10 STATE REPORT Inj Rate / Avg Whp / Inj Index -139 01/01/88 to 12/31/95 I I I t I I 11 1 I III Q I$ I IM i i Ii f;G�,� '�ti 1 d$, 'f �@`i ,rfl "� !"�,L itlF"M1Y;1 � f IT ,' � +� •i,�, i^,�y. '; `I •;;6;, i. <:w-. �r.� gv j''I I I ry,r ro �i; I i ,.. r „1i � d~a, I` I j I;, I 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 ---------- Avg WHP (PSIG) 1994 1995 - Inj Index (BPD/PSI 30 20 10 STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 20000I I I 30 20 10000 I 10 le co 0 0 1988 1989 1990 1991 1992 1993 1994 1995 1996 N N \ O N 0 Water Inj Rate (BPD) ---------- Avg WHP (PSIG) Inj Index (BPD/PSI 0= I i I I I I I I I I I I I I I I I I j I I I I I I I I I 1 I I I I I I I I I I I I I I 4 I I I I I I I I I I III I I I I f 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 ��;� �� ,,, .�'�;JI ,�'-' .N•, �. �;3,. �; �. !l ; , '�� A ��: �,, ,, E�:3t ii 11 I'g � � I I I I I I STATE REPORT Inj Rate / Avg Whp / Inj Index 13-47/0-35 01/01/88 to 12/31/95 20000 I I I I I I 1 I I I I I I I I I I I I I I 30 I I I I I I I I I I I I I I I I I I I I I I I I 20 I I I I I I I I I I I I I I 1 I I I I I I 10000-1 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 1 I I I I I I I I I I I I I I I I I I I I I 10 I I I I I I I I I I I I I I I I I �NJI 1 I I I 0 cD rn 1988 1989 1990 1991 1992 1993 1994 0 1995 1996 N N �,o N o Water Inj Rate (BPD) ---------- Avg WHP (PSIG) Inj Index (BPD/PSI C)= STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 20000-1 I I i 30 I II I I I I I I I I I I I I 20 10000 i I I II I I 1 I I I I I 1 I I I I I I 10 I I I I I I I f 0 - 0 rn 1988 1989 1990 1991 1992 1993 1994 1995 1996 N U) \ o N o Water Inj Rate (BPD) Avg WHP (PSIG) Inj Index (BPD/PSI o= STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 20000 LD 0 rn 1988 N m �,0 N 0 o= 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 1 I I I I I i I I I I I I I I II I I I I I I I II 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 1 I I I I I I I I I I I 1989 1990 Water Inj Rate (BPD) 1991 1992 1993 1994 1995 ---------- Avg WHP (PSIG) - Inj Index (BPD/PSI 30 10 Lo 0 rn 1988 co N cn \o N O O L STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 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 I I I I I I I I I I I I I I I I I I I I I I I I II 11 I I 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 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 I I I I I I I I I I I I i I I II I I I I I I I I I I I I 1989 1990 Water Inj Rate (BPD) 1991 1992 1993 ---------- Avg WHP (PSIG) 1994 1995 Inj Index (BPD/PSI 30 20 10 0 1988 N m \ 0 N 0 CD= STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 I I I I I I I I I I I j I i 1 I I I I `I I Oil '! 1{ � 4 j'.r, 4: " ' ,�1 �I ly�, I ) fr`, • ^„�,�+.I .tii•,. I I 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 1994 1995 ---------- Avg WHP (PSIG) Inj Index (BPD/PSI 30 20 10 0 p� 1988 N 0 O N 0 O -I-- STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 II I I I I II II II I I 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 1 i I I I I I I I I 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 1994 Avg WHP (PSIG) 1995 -- Inj Index (BPDIPSI 30 9c 10 STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 20000 30 111 0 1988 N U) O N O 0= 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 1994 Avg WHIP (PSIG) 1995 - Inj Index (BPD/PSI - 20 10 �I u 1989 1990 1991 Water Inj Rate (BPD) 1992 1993 1994 Avg WHIP (PSIG) 1995 - Inj Index (BPD/PSI - 20 10 53 PS n -n7 120000 110000 100000 90000 aI 80000 S 70000 0 60000 U 50000 40000 r--1 30000 20000 10000 0 1987 1988 1989 Injection Rate by Day 01/01/87 to 01/01/97 1990 1991 1992 1993 ---------- AVG WHP V --A PW 1994 1995 1996 X - MI #- S W AVG W 5000 10I 3000 2000 0 1997 rn N cn \ O GAS INJ RATE �o GI os IN m I ills 1990 1991 1992 1993 ---------- AVG WHP V --A PW 1994 1995 1996 X - MI #- S W AVG W 5000 10I 3000 2000 0 1997 rn N cn \ O GAS INJ RATE �o GI os 1990 1991 1992 1993 ---------- AVG WHP V --A PW 1994 1995 1996 X - MI #- S W AVG W 5000 10I 3000 2000 0 1997 lil STATE REPORT Inj Rate / Avg Whp / Inj Index 01/01/88 to 12/31/95 II II I I I i I I I I I I I I I I I III I I I I I I i II I I I I I I I II I I 1 I I I I I II I I I I I I I II I I II I I I I I I I I 11 I �j N. I ,.h•, I d . ,� I I Lr:.n1 7 i ^'� v:•.�}�},��yl`y. ^; �..;, ,^yS�.� +1`i%_ I I . g�na H`:'� I I I I I I I I I 1989 1990 Water Inj Rate (BPD) 1991 1992 1993 Avg WHP (PSIG) 1994 1995 Inj Index (BPD/PSI 30 c 10 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATE DATE WELL 1987 5 -Sep -87 1-47/0-21 5 -Sep -87 1-47/Q-21 1 -Oct -87 1-09/J-18 1 -Oct -87 1-09/J-18 10 -Nov -87 3-01/N-29 22 -Nov -87 1-09/J-18 5 -Dec -87 3-01/N-29 12 -Dec -87 1-47/0-21 12 -Dec -87 1-47/Q-21 1988 19 -Jan -88 1-35/0-25 27 -Jan -88 2-52/S-14 27 -Jan -88 2-52/S-14 28 -Jan -88 1-29/M-25 2 -Feb -88 1-09/J-18 3 -Feb -88 2-62/0-17 15 -Feb -88 2-08/K-16 15 -Feb -88 2-08/K-16 15 -Feb -88 2-08/K-16 28 -Feb -88 3-47/0-35 1 -Mar -88 3-33/K-37 1 -Mar -88 3-33/K-37 27 -Mar -88 3-01/N-29 30 -Mar -88 3-35/L-36 22 -Apr -88 1-35/0-25 25 -May -88 3-05/0-29 5 -Jun -88 1-55/R-25 5 -Jun -88 1-55/R-25 9 -Jun -88 1-29/M-25 10 -Jun -88 1-35/0-25 11 -Jun -88 3-01/N-29 11 -Jun -88 2-6210-17 16 -Jun -88 2-26/N-14 16 -Jun -88 2-26/N-14 21 -Jun -88 3-01/N-29 29 -Jun -88 2-26/N-14 29 -Jun -88 2-26/N-14 23 -Jul -88 3-05/0-29 27 -Jul -88 2-26/N-14 27 -Jul -88 2-26/N-14 30 -Jul -88 4-26/0-34 MPI 3C 36 3A I 2B 2A 4897 4839 4897 4696 4600 4889 4889 4466 4813 4631 4569 4631 4514 4809 4784 4784 4800 4767 4800 4788 4736 4497 4800 4494 4750 4497 4789 RECEIVE 4758 4600 4726 4742 4671 4820 4820 4838 4838 3718 3718 SDI 3C 36 3A 26 2A I 4839 4696 4600 4466 4569 4514 4551 4460 4800 4800 4497 4494 4497 RECEIVE 4600 Alaska Oil & Gas Cons. Commission ' ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATE DATE WELL 30 -Jul -88 4-26/0-34 30 -Jul -88 4-26/0-34 30 -Jul -88 4-26/0-34 30 -Jul -88 4-26/0-34 4 -Sep -88 3-11/M-30 4 -Sep -88 3-11/M-30 4 -Sep -88 3-11/M-30 4 -Sep -88 3-11/M-30 4 -Sep -88 3-11/M-30 18 -Sep -88 4-26/0-34 7 -Oct -88 3-11/M-30 8 -Oct -88 2-26/N-14 8 -Oct -88 2-26/N-14 10 -Oct -88 1-09/J-18 11 -Oct -88 3-05/0-29 13 -Oct -88 2-14/0-16 20 -Oct -88 2-08/K-16 20 -Oct -88 3-47/Q-35 21 -Oct -88 1-29/M-25 22 -Oct -88 1-35/0-25 23 -Oct -88 3-01 /N-29 17 -Nov -88 1-35/0-25 25 -Nov -88 1-09/J-18 25 -Nov -88 1-09/J-18 4 -Dec -88 3-11/M-30 13 -Dec -88 1-49/P-21 13 -Dec -88 2-08/K-16 1989 5 -Jan -89 2-26/N-14 5 -Jan -89 2-26/N-14 15 -Jan -89 3-35/L-36 2 -Feb -89 2-26/N-14 2 -Feb -89 2-26/N-14 21 -Feb -89 4-26/0-34 19 -Mar -89 1-29/M-25 20 -Mar -89 2-46/0-15 20 -Mar -89 2-46/Q-15 20 -Mar -89 2-46/Q-15 20 -Mar -89 2-46/Q-15 25 -Mar -89 1-35/0-25 29 -Mar -89 3-47/Q-35 3 -Apr -89 3-33/K-37 MPI 3C 36 3A 26 2A 3320 3320 4850 4400 4628 4678 4576 4532 4525 4644 4563 4721 4436 4411 4700 4504 4615 4590 4359 4622 4563 4524 4491 4490 2800 4993 3909 2800 4278 2894 4405 2894 4635 4450 4732 4509 4731 I 4631 SDI 3C 3B 3A 2B 2A 4590 4528 4850 4400 4469 4576 4525 4563 4436 4411 4504 4590 4359 4524 4490 4993 3909 4278 4405 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATE DATE WELL 18 -Apr -89 4-26/0-34 27 -Apr -89 2-26/N-14 27 -Apr -89 2-26/N-14 7 -May -89 1-49/P-21 11 -May -89 2-14/0-16 11 -May -89 2-14/0-16 6 -Jun -89 1-09/J-18 6 -Jun -89 1-09/J-18 21 -Jun -89 2-08/K-16 21 -Jun -89 2-08/K-16 21 -Jun -89 2-46/Q-15 21 -Jun -89 2-46/Q-15 3 -Aug -89 2-52/S-14 3 -Aug -89 1-47/0-21 3 -Aug -89 2-52/S-14 3 -Aug -89 1-47/0-21 4 -Aug -89 2-46/0-15 4 -Aug -89 2-46/Q-15 15 -Aug -89 3-47/Q-35 19 -Aug -89 3-05/0-29 21 -Aug -89 3-01/N-29 12 -Sep -89 4-50/K-41 12 -Sep -89 4-50/K-41 23 -Sep -89 4-26/0-34 23 -Sep -89 4-26/0-34 24 -Sep -89 1-35/0-25 25 -Sep -89 2-62/Q-17 29 -Oct -89 3-11/M-30 25 -Nov -89 2-52/S-14 25 -Nov -89 2-52/S-14 27 -Nov -89 3-05/0-29 22 -Dec -89 2-46/0-15 22 -Dec -89 2-46/Q-15 30 -Dec -89 3-33/K-37 30 -Dec -89 3-33/K-37 1990 4506 3 -Jan -90 1-45/Q-26 7 -Feb -90 2-26/N-14 7 -Feb -90 2-26/N-14 25 -Feb -90 3-05/0-29 26 -Feb -90 2-62/Q-17 26 -Feb -90 1-47/Q-21 MPI 3C 3B 3A 2B 2A 3287 $287 4440 4421 4623 4780 4614 4280 4634 4000 4640 4143 4600 4600 4420 4417 I 4420 4437 4456 4432 4411 4410 4456 4506 4410 4427 4427 4570 4600 4505 4505 4456 4456 4006 4006 4642 4453 SDI 3C 3B 3A 2B � 2A 4019 4317 4332 4421 4780 4280 4000 4143 4440 4417 I 4437 4432 4411 4506 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATE DATE WELL 26 -Feb -90 1-47/Q-21 28 -Feb -90 1-35/0-25 1 -Mar -90 1-49/P-21 17 -Mar -90 2-14/0-16 17 -Mar -90 2-14/0-16 19 -Mar -90 1-09/J-18 19 -Mar -90 1-09/J-18 22 -Mar -90 1-55/R-25 22 -Mar -90 1-55/R-25 5 -Apr -90 1-55/R-25 5 -Apr -90 1-55/13-25 9 -Apr -90 4-26/0-34 9 -Apr -90 4-26/0-34 29 -Apr -90 4-50/K-41 29 -Apr -90 4-50/K-41 1 -May -90 1-45/Q-26 1 -May -90 1-45/Q-26 2 -May -90 2-18/L-16 2 -May -90 2-18/L-16 2 -May -90 2-18/L-16 2 -May -90 2-18/L-16 24 -May -90 2-08/K-16 24 -May -90 2-08/K-16 11 -Aug -90 4-26/0-34 12 -Aug -90 1-35/0-25 12 -Aug -90 1-29/M-25 12 -Aug -90 2-26/N-14 12 -Aug -90 2-26/N-14 13 -Aug -90 2-52/S-14 13 -Aug -90 2-52/S-14 13 -Aug -90 2-46/Q-15 13 -Aug -90 2-46/Q-15 13 -Aug -90 1-49/P-21 14 -Aug -90 4-26/0-34 10 -Oct -90 3-33/K-37 10 -Oct -90 3-33/K-37 20 -Oct -90 3-01/N-29 28 -Oct -90 3-11/M-30 1991 22 -Apr -91 1-49/P-21 30 -Apr -91 2-46/Q-15 30 -Apr -91 2-46/Q-15 MPI 3C 3B 3A 2B 2A 4453 4322 4611 4369 4557 4147 4606 4029 4628 4976 4667 4426 4370 4639 4617 4400 3971 4660 3838 4725 4617 4414 4357 4660 4427' 4684 4714 4707 3486 3486 4500 4500 4465 4465 4708 4761 4339 4339 SDI 3C 36 3A 2B 2A 4322 4322 4369 4369 4147 4029 4976 4426 4370 4400 3971 3838 4414 4357 4427' 4376 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATE DATE WELL 12 -May -91 1-47/Q-21 12 -May -91 1-47/Q-21 15 -May -91 2-26/N-14 15 -May -91 2-26/N-14 18 -May -91 1-09/J-18 18 -May -91 1-09/J-18 23 -May -91 2-08/K-16 23 -May -91 2-18/L-16 28 -May -91 3-11/M-30 1 -Jun -91 1-45/Q-26 1 -Jun -91 1-45/Q-26 4 -Jun -91 3-47/Q-35 4 -Jun -91 2-62/0-17 7 -Jun -91 1-55/R-25 7 -Jun -91 1-55/R-25 17 -Jun -91 3-33/K-37 17 -Jun -91 3-33/K-37 26 -Jun -91 4-08/P-27 15 -Jul -91 3-25/M-27 24 -Jul -91 3-25/M-27 14 -Sep -91 2-14/0-16 14 -Sep -91 2-14/0-16 6 -Oct -91 2-62/0-17 7 -Oct -91 1-49/P-21 12 -Oct -91 4-08/P-27 19 -Oct -91 3-33/K-37 19 -Oct -91 3-33/K-37 12 -Nov -91 1-47/0-21 12 -Nov -91 1-47/Q-21 18 -Nov -91 2-08/K-16 18 -Nov -91 2-08/K-16 20 -Nov -91 2-18/L-16 1992 22 -Jan -92 2-46/Q-15 22 -Jan -92 2-46/Q-15 29 -Jan -92 1-09/J-18 29 -Jan -92 1-09/J-18 27 -Mar -92 1-49/P-21 31 -Mar -92 2-62/Q-17 3 -Apr -92 4-08/P-27 6 -Apr -92 1-45/Q-26 6 -Apr -92 1-45/0-26 MPI 3C 3B 3A 2B 2A 2A 4227 4704 4227 1823 4157 1823 4140 4140 4922 4724 4931 4750 4961 4815 4903 4771 4783 4562 4473 4813 4657 4894 4900 4803 4872 4898 4180 4180 4657 4725 4657 4245 4245 4824 4796 4869 4890 SDI 3C 36 3A 2B 2A 4704 4108 4108 4157 4140 4140 4724 4750 4815 4771 4562 4473 4657 3919 3919 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATE DATE WELL 10 -Apr -92 3-47/Q-35 10 -Apr -92 3-47/Q-35 10 -Apr -92 3-47/Q-35 10 -Apr -92 3-47/Q-35 19 -Apr -92 2-26/N-14 19 -Apr -92 2-26/N-14 9 -May -92 3-11/M-30 15 -May -92 3-25/M-27 15 -May -92 3-25/M-27 18 -May -92 3-33/K-37 18 -May -92 3-33/K-37 2 -Jun -92 4-50/K-41 15 -Jun -92 2-52/S-14 15 -Jun -92 2-52/S-14 23 -Jul -92 2-14/0-16 23 -Jul -92 2-14/0-16 26 -Jul -92 1-29/M-25 26 -Jul -92 2-18/L-16 27 -Jul -92 1-47/Q-21 31 -Jul -92 4-26/0-34 17 -Nov -92 2-14/0-16 18 -Nov -92 2-62/Q-17 23 -Nov -92 1-45/0-26 23 -Nov -92 1-45/0-26 24 -Nov -92 4-08/P-27 26 -Nov -92 1-49/P-21 28 -Nov -92 2-26/N-14 28 -Nov -92 2-26/N-14 30 -Nov -92 3-47/0-35 4 -Dec -92 3-33/K-37 4 -Dec -92 3-33/K-37 5 -Dec -92 3-25/M-27 5 -Dec -92 3-25/M-27 5 -Dec -92 2-52/S-14 5 -Dec -92 2-52/S-14 19 -Dec -92 3-11/M-30 30 -Dec -92 4-26/0-34 1993 7 -Jan -93 4-50/K-41 7 -Jan -93 4-50/K-41 3 -May -93 1-47/Q-21 3 -May -93 1-47/Q-21 MPI ff3�t36 3B 3A 2B 2A 2A 1482 1482 4608 4874 4779 4739 3952 4751 3952 4726 3966 4846 3033 4470 4841 3762 4767 4693 4399 4087 4542 4879 4639 4852 4671 2484 4865 1229 1229 4776 4896 4572 4572 4065 4065 SDI 3C 3B 3A 2B 2A 4608 4608 4608 4608 4739 4751 4726 3966 3033 4470 3762 4393 4399 4542 4639 4671 2484 3700 5172 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATE DATE WELL 18 -May -93 2-62/Q-17 20 -May -93 2-26/N-14 20 -May -93 2-26/N-14 21 -May -93 1-49/P-21 23 -May -93 3-47/Q-35 16 -Jul -93 3-25/M-27 16 -Jul -93 3-25/M-27 21 -Jul -93 2-18/L-16 24 -Jul -93 4-26/0-34 24 -Jul -93 4-26/0-34 25 -Aug -93 1-09/J-18 25 -Aug -93 1-09/J-18 19 -Sep -93 3-25/M-27 24 -Sep -93 1-35/0-25 1 -Nov -93 4-50/K-41 1 -Nov -93 4-50/K-41 7 -Nov -93 3-11/M-30 7 -Nov -93 3-11/M-30 9 -Nov -93 2-46/Q-15 10 -Nov -93 1-45/0-26 24 -Nov -93 2-50/U-08 1994 4691 17 -Mar -94 1-47/0-21 19 -Mar -94 1-35/0-25 22 -Mar -94 3-03/J-33 24 -Mar -94 3-47/Q-35 17 -Apr -94 2-58/S-09 18 -Apr -94 2-6210-17 20 -Apr -94 2-18/L-16 25 -Apr -94 2-52/S-14 16 -May -94 1-45/Q-26 7 -Jun -94 2-26/N-14 7 -Jan -95 1-49/P-21 1 -Jan -95 1-09/J-18 14 -Jul -94 4-38/K-34# 20 -Nov -94 311/M-30 30 -Nov -94 4-26/0-34 6 -Jan -95 2-14/0-16 23 -Dec -94 3-25/M-27 9 -Dec -94 4-50/K-41 MPI 3C 3B 3A 2B ' 2A 4862 2279 1513 1513 4575 4919 3359 4713 4780 4390 3905 4691 4638 47361 4608 4621 4643 4549 4452 4435 4211 L— 3801 4277 4628 4555 2497 4773 4309 4449 1370 4704 4367 4303 4232 SDI 3C 38 3A 26 2A i 4904 2279 2811 4575 3359 4335 4316 3905 4283 47361 4608 3829 4452 2817 L— 4277 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATE DATE WELL 1995 3A 3 -Jul -95 1-09/J-18 19 -Oct -95 1-19/1-18 8 -Dec -95 2-18/L-16 16 -Dec -95 2-26/N-14 20 -Oct -95 1-33/M-23 17 -Jan -95 1-61/Q-20 7 -Jan -95 1-49/P-21 4 -Apr -95 2-46/Q-15 3 -May -95 2-52/S-14 8 -May -95 2-58/S-09 26 -Jan -96 3-11/M-30 20 -Jan -95 3-15/K-33 28 -Dec -95 4-50/K-41 2 -May -95 3-05/0-29 24 -Apr -95 4-18/S-30 14 -Jan -95 1-45/Q-26 MPI ff36 3B 3A 2B 2A 4556 4498 4301 4348 4040 1590 1590 5194 5194 4380 4603 4704 4930 4930 4713 4713 2223 SDI 3C 3B 3A 2B 2A 4556 4301 1 4916 4745 4924 5194 5194 Pressure vs. Time ENDICOTT FIELD AREA=NIK SUBZONE=3C 5000— a OI Q 4500,O 4000 .. .. Q 3500 0 3000 ... O o O 2500 .._. .. 0... O O O 200040 ; ... 1500 a 1000 RL RL OR RL RL RL RL Lb OOOAII Wells Q)Q,5 Key Well 5000 Q 4500 V) v) 4000 H „ 3500 Pressure vs. Time ENDICOTT FIELD AREA=NIK SUBZONE=3B 2500 cd a� 2000 w 1500 w a 1000 &:a is c OOOAII Wells 90GKeyWell OOOAII Wells Key Well C) C) Q 0 '-i Y cC OOOAII Wells 400OKeyWell 5000 a Q Q 4500 w LIM 0 3500 s.. Ps 3000 Pressure vs. Time ENDICOTT FIELD AREA=NIK SUBZONE=2A 000A11 Wells 00OKeyWell O 000A11 Wells 00OKeyWell ENDICOTT FIELD AREA=MPI SUBZONE=3C OOOAII Wells Key Well 5000 � � O 4500 O f, 00 4000" I. 3500 „ 00 3000 o O 2500 2000 1500 w 1000 R gg, L T R L 0 R L R L R L gg. R L R L 5 R L 6 T OOOAII Wells Key Well Q w O O O O i, 3000 2500 2000 1500 1000 OOOAII Wells 00OKeyWell OOOAIl Wells MMQKeyWell OOOAII Wells GOOKeyWell OOOAII Wells GOOKeyWell Pressure vs. Tin -ie ENDICOTT FIELD AREA=MPI SUBZONE=1B OOOAII Wells 5000 Q 4500 cn Q 4000 H 3500 0 3000 0 2500 2000 1500 1000 Pressure vs. Time ENDICOTT FIELD AREA=SDI SUBZONE=3C OOOAII Wells @ Key Well OOOAII Wells 00OKeyWell Pressure vs. in-ICS ENDICOTT FIELD AREA=SDI SUBZONE=3B 5000- .0 O O A 4500 O: O O Q v, 4000 ...... Erj O 3500 w 0 3000 0 2500 cd 2000 .. . 1500 i m a 1000 . R RLHR� R � RMRH R P ROH OOOAII Wells 00OKeyWell 5000 Q 4500 H w Pressure vs. Thi e ENDICOTT FIELD AREA=SDI SUBZONE=3A ...: _.: . C7 Q 0 3500 111 OOOAII Wells !*• Key Well Pressure vs. Time ENDICOTT FIELD AREA=SDI SUBZONE=2B 5000 a Q O Q 4500 H cz Com' 0 3500 P-1 3000 OOOAII Wells SMOKeyWell OOOAII Wells !O• Key Well IJ MIN ■■■11■IIIIoil 1■■■17■ 111th ralil l IRENE 11141 111 !11111 ?1111�'li WNS RON III R31 111311 11IF911111 1111nol 11it,'111111�IIi1i Boom 11011 1111111111 111 1 FINE 11101 1111111111HINUM1 Fall 11101 1111'1111I 11111,11 man 10.01 111[11111101l1ir"A 1111 1 Rolm IIIfiI 1111111 IIII'11111F 1111'111111'J111I?11 coal i RISE 11*411I 1111111 IX11 oill IIIIII� III fI1 Role 11111 I11i?IIIIIi111LIII 11MIN room O1 111111 11bild IIIrii� IIIIA! IilFilllllkllowill 1110iiil:!11_"111 11IF1111 0111 iI1 11IF1111111N)III5; I IBM NINE X0;•1 111111 11012 1111111 IIIIJ11111PA111�:11 III[II'== Iy11�� 1 I111�A�111! �1 mom poll HIM 111[111::?��111Q RoosME 1111;1- 11II1111111L111I1,1 No IIIF9T I11i!IIIIII►IIIh�i 111[.1= 11I1,IIIIIIFIIIF II Flail move MINE Boom 111191_ 111[1- 1110- ///1l■= 111 I�I1111i4116111 1111i111111FAIWIi 1111111111;'1111 .11 ■■■L1■111111,11■ % i■■ RECEIVED MAY 1 7 1996 Alaska 011 & Gas Cons. Commission Anchorage l ■i■■ [i■■■ 111011 111111 iliiIiII iiiiiliiit i i1'.i[iillllhiliiilll ES■■■ 11111 irfii1111lliiil El■■■ IIIP11 iiilillllll►.liitf! i mono El■■■ fi■s■ IIIVII IIIIII IIILl11 ■11111111M11i■N91 ilfi1111110111Mii illifi111111111iElii lin■n Ross fii■ 1116.11 111111 111111 ■Ll�riillllltll■i'!■■ INK1i11111:1111f fii 1Lint Illr 4111K,Iii 11En■ hill! IIM[i::2!!111 :!1t C■■ 111111 ilihilllliilllit<1i ill�Lillhllllii iii 111■■ 1111111 Ross 1111211 ■1►1ohi111L1i111TAIN E<g■■ 1111■■ IIIIII MEMO 1110111RONINLIGM, i 01111'111111R11i■RA EIl■■ MEN iiitiilllllllli■lflJ■ MINE MEN ii,i1711111LiliiE�l7i El■■■ 111111 itliFilllil�illiiElJli NINE 111111 1111,111111llliiCj 111L411 11111111111F111i1,C1i' Ei■■■ loss Boom 11111E 1111:11==_=_ i111ii11111111iik> 1t milhillllllll■■1'91 L■■■ 11mm■ [f■■■ rat■ IIIA- MIND 111111- IIIA_ i!'il!illll�ali�ai ii�[illlll!`11iE1iii iii[;illllalili t�■■■ lingo [isms ring■ gag■ 111111- IIIII-_ IIIn11L IIIb_ IIII1= ■iI1a11111011ii1I■■ ■Cil■IIIIIlllial■■ iii!■1111►11■iii■ iii1111t1Ellis'�ii