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Home My WebLink About2008 Endicott Oil Pool 2008 Reservoir Surveillance Report Endicott Oil Pool March 18, 2009 Waterflood Surveillance Program Key Well Pressure Monitoring Program GOC Monitoring Program 2008 Endicott Reservoir Surveillance Report Table of Contents Page 1 Waterflood Surveillance Program: Introduction Page 2 Project Status Summary Page 2 Injection Well Performance Page 4 Waterflood Tracer Page 4 Figure 1: Endicott Field Well Plat Page 5 Table 1: Summary of Pertinent Data Page 6 Table 2: Reservoir Balance for Waterflood Sands Page 7 Table 3: Injection Well Data Page 8 Figure 2: Waterflood Tracer Plat Page 9 Pressure Monitoring Program: Introduction Page 10 2008 Pressure Monitoring Program Page 10 2009 Pressure Monitoring Proposal Page 11 Figure 3: Endicott Field Well Plat (highlighting Key Wells) Page 12 Table 4: 2008 Key Well Pressure Monitoring Proposal Page 13 Table 5: 2008 Key Well Pressure Monitoring Results Page 14 Table 6: 2009 Key Well Pressure Monitoring Proposal Page 15 GOC Monitoring Program: Introduction Page 16 2008 Gas-Oil Contact Monitoring Program Page 17 2009 Gas-Oil Contact Monitoring Proposal Page 17 Appendices: 1. Production Rate vs. Time Plots 2. Cumulative Voidage vs. Time Plots 3. Injection Well Rate & Pressure vs. Time Plots 4. Historical Key Well Pressure Data 5. Reservoir Pressure vs. Time 6. Endicott Shut-in well list 2 Endicott Oil Field 2008 Waterflood Surveillance Program Introduction Conservation Order 202 Rule 12 approved a field wide waterflood project for the Endicott reservoir. 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. The Endicott Waterflood development was recognized as complete and fully operational by letter, dated January 11, 1991, and annual waterflood surveillance reporting was approved. This document constitutes the report for 2008. Project Status Summary Endicott Field production began in October 1987. From field start-up, produced gas has been reinjected back into the existing gas cap to provide pressure support. Water injection was initiated in February 1988, and a tertiary recovery process was initiated with the installation of a miscible injection compressor and commencement of miscible injection in March 1999. This report summarizes the cumulative effects of pressure maintenance since field start-up and details activities in 2008. The Endicott Field is generally described as having three areas. The three areas of the field are fault blocks identified as the MPI (Main Production Island), the SDI (Satellite Drilling Island), and the NFB (Niakuk Fault Block). Vertically there are six subzones (3C, 3B, 3A, 2B, 2A, 1) that are the general geological subdivisions within the Kekiktuk formation. Initially produced gas was reinjected into the gas cap in the updip portion of MPI subzones 2A and 2B. Gas injection was extended into the MPI subzone 3A gas cap in May 1988 and into the MPI and the SDI subzone 3C gas cap in 1993. Reservoir studies subsequently identified the SDI 3C area as a primary EOR target and supported the decision to reduce immiscible gas injection in that subzone. In July 1998, SDI 3C gas injector 1-15/P-25 was shut-in. From July 1998 to present day, well 1-15/P-25 has been returned to service on numerous occasions while wellwork was planned and executed on the primary gas injectors. Well 1-15/P-25 will continue to be used on a short term basis whenever wellwork is required on the primary gas injectors. 3 Water injection is occurring in peripherally placed injectors in all subzones in all areas of the field with the exception of Zone 1, which is on primary depletion. Endicott’s EOR project began in March of 1999. The original EOR Phase I implementation plan consisted of 8 water-alternating-gas (WAG) injection wells, with two wells being on MI at any given time. This plan was based on an MI compressor design rate of 45 mmscfd. The average MI injection for 2008 was 7.1 mmscfd, with peak rates of 14.6 mmscfd. In 2008, miscible gas injection occurred in 1 well; SDI 3B/3C injector 3-47/Q-35. Produced gas samples are routinely collected in all of the producers offset from the injection wells in order to monitor MI breakthrough. Figure 1 shows a map of the field with well status as of December 31, 2008 including the existing water injectors, gas injectors and oil producers. The only well service changes taking place in 2008 were as follows: surface piping modifications on wells 3-01/N-29 & 3- 17F/K-30 (converted from producer to injector) and well 4-14A/S-37 (sidetracked and converted from injector to producer). Table 1 summarizes total production, injection, and well count (wells online during December 2008) for the entire pool through December 2008. Table 2 details the reservoir balances by area and subzone through December 2008. The Niakuk Fault Block (NFB) is included with the Main Production Island (MPI) on Table 2 for simplicity. Appendix 1 provides a graph of Production and Gas/Oil Ratio versus Time by area and subzone. Appendix 2 provides graphs of Cumulative Voidage versus Time by area and subzone. Appendix 6 lists the wells in the participating area that were shut in for all of 2008. 4 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 and cumulative injection volumes. Appendix 3 provides graphs of the injection rates, injectivity index, and wellhead pressure versus time for each injector. Waterflood Tracer The waterflood tracer program was started in 1988. A total of 24 water injectors have been traced: 3 in 1988, 8 in 1989, 6 in 1991, and 3 in 1996 (well 2-44/R-12 was traced with two different tracers), 2 in 2005, 1 in 2007, and 3 in 2008 (well 3-35/L-36 was traced with four different tracers). 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. Based on the maturity of the waterflood tracer program, the decision was made to discontinue sampling efforts on all producers except for those immediately offset to injectors 3-35/L-36, 3-41/K-39, and 3- 45/M-39; tracers injected in 2008. Figure 2 is an Endicott well plat showing the dates and types of tracers injected and the producing locations where the tracer has appeared. Reservoir pressure and 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 by evaluating new well drilling locations, converting producers to injectors, profile modification of existing injectors, and target injection rate control. Offtake will continue to be optimized by evaluating new well drilling locations, remedial work on existing producers, and production rate control. 5 Figure 1. 2008 Well Status – Endicott Field, Alaska BP Exploration, Alaska Inc 6 TABLE 1 ENDICOTT OIL POOL SUMMARY OF PERTINENT DATA (as of December 31, 2008) Water Injection Start-up: February 29, 1988 Miscible Gas Injection Start-up: March 24, 1999 Endicott Production since Field Start-Up: Black Oil and Condensate (MMSTB) 448.0 NGL's (MMSTB) 23.7 Gas (BSCF) 2359.0 Water (MMB) 1009.2 Endicott Injection since Field Start-Up: Gas (BSCF) 2087.3 Miscible Injectant (BSCF) 31.7 Water (MMB) 1388.6* Wells in Operation during the month of December 2008: Oil Producers 58 Gas Injectors 5 Water Injectors 18 Water-Alternating-Gas Injectors 1 Waste Water Disposal 0 ** Total 82 * Water injection volumes do not include Cretaceous injection ** Cretaceous injector not shown in Figure 1 7 MPI & NIAK REGION by SUBZONE Produced Volume 3C 3B 3A 2B 2A K1 MPI TOTAL Oil 28.03 42.61 30.39 83.26 163.58 4.99 352.85 Solution Gas 10.43 15.86 11.31 30.99 60.89 1.86 131.35 Free Gas 94.16 107.44 118.57 213.68 462.39 9.27 1,005.50 Water 27.39 61.37 64.02 189.30 177.55 2.33 521.96 Total 149.57 211.41 212.98 486.25 803.52 16.58 1,880.30 Injected Volumes Gas 202.17 110.15 24.86 475.44 513.72 0.00 1,326.34 MI 0.38 1.37 0.88 0.00 0.00 0.00 2.62 Water 40.47 112.31 77.00 184.27 246.61 0.00 660.65 Total 243.01 223.83 102.74 659.71 760.33 0.00 1,989.62 Net Voidage Volumes Total 93.44 12.42 -110.24 173.46 -43.19 -16.58 109.32 SDI REGION by SUBZONE Produced Volume 3C 3B 3A 2B 2A K1 SDI TOTAL Oil 60.17 18.67 32.96 92.25 47.57 0.26 251.88 Solution Gas 22.40 6.95 12.27 34.34 17.71 0.10 93.76 Free Gas 180.04 30.27 7.11 39.67 124.14 0.16 381.39 Water 124.81 35.43 74.76 168.00 113.70 0.05 516.75 Total 365.02 84.37 114.83 299.93 285.41 0.47 1,150.03 Injected Volumes Gas 91.20 5.82 0.00 0.00 0.00 0.00 97.03 MI 13.79 5.26 0.00 0.00 0.00 0.00 19.05 Water 130.91 85.19 67.24 367.32 119.51 0.00 770.18 Total 235.91 96.27 67.24 367.32 119.51 0.00 886.25 Net Voidage Volumes Total -129.11 11.90 -47.59 67.39 -165.90 -0.47 -263.78 FIELD TOTALS by SUBZONE 3C 3B 3A 2B 2A 1 FIELD TOTAL Produced Volume Oil 88.20 61.27 63.35 175.51 211.14 5.25 605 Solution Gas 32.83 22.81 23.58 65.33 78.60 1.95 225 Produced Gas 274.20 137.70 125.68 253.36 586.53 9.42 1,387 Water 152.20 96.80 138.78 357.31 291.25 2.38 1,039 Total 514.59 295.77 327.81 786.18 1,088.93 17.05 3,030.33 Injected Volumes Gas 293.37 115.98 24.86 475.44 513.72 0.00 1,423 MI 14.17 6.63 0.88 0.00 0.00 0.00 22 Water 171.38 197.50 144.24 551.59 366.12 0.00 1,431 Total 478.92 320.10 169.98 1,027.03 879.84 0.00 2,876 Net Voidage Volumes Total -35.67 24.33 -157.82 240.85 -209.09 -17.05 -154.46 NOTE: Water injection volumes do not include Cretaceous injection NOTE: Voidage is calculated as Injected Volumes minus Produced Volumes TABLE 2 ENDICOTT OIL POOL RESERVOIR BALANCE FOR WATERFLOOD SANDS Through12/31/2008 (Values in MMRB) 8 MPI Reservoir Area Cumulative Cumulative Cumulative Water Gas MI Start-Up Well Name MMBW BSCFG BSCFG Date 1-05/O-20 0.0 484.6 0.0 May-88 1-23/O-15 81.8 0.0 0.0 Mar-95 1-37/P-24 33.5 0.0 0.0 Dec-87 1-41/O-23 66.6 0.0 0.0 Dec-95 2-06/J-22 0.0 613.7 0.0 Oct-87 2-12/Q-16 0.0 295.9 0.0 Apr-93 2-16/M-16 91.9 0.0 0.0 Mar-89 2-22/L-14 64.3 0.0 3.3 May-89 2-24/M-12 4.8 0.0 0.0 Mar-95 2-34/P-14 84.8 0.0 0.0 Nov-89 2-44/R-12 * 20.8 0.0 0.0 Mar-89 2-54/Q-12 88.7 0.0 0.0 Jan-92 2-64/U-10 10.7 0.0 0.0 Dec-90 2-70/U-15 22.4 0.0 0.6 Jul-89 5-01/SD-07 0.0 546.9 0.0 Oct-87 5-02/SD-10 71.2 0.0 0.0 Jan-88 SDI Reservoir Area Cumulative Cumulative Cumulative Water Gas MI Start-Up Well Name MMBW BSCFG BSCFG Date 1-15/P-25 0.0 142.0 0.0 Jun-93 1-43/P-26 166.9 0.0 0.0 Apr-89 1-51/V-20 15.8 0.0 0.0 Apr-93 1-67/T-20 24.7 0.0 2.1 May-99 1-69/V-19 22.3 0.0 0.0 Dec-90 3-07/N-28 ** 47.6 0.0 0.0 Apr-89 3-35/L-36 *** 1.9 0.0 0.0 Nov-07 3-37/L-35 - 45.0 0.0 0.0 Aug-98 3-41/K-39 145.2 0.0 0.0 Apr-89 3-45/M-39 69.3 0.0 0.0 Sep-88 3-47/Q-35 19.6 0.0 12.5 Mar-95 3-49A/M-40 27.1 0.0 0.2 Apr-99 4-02/Q-28 -- 8.5 0.0 0.0 May-88 4-04/T-26 44.0 0.0 13.1 Mar-90 4-08/P-27 48.4 0.0 0.0 May-93 4-14/R-34 --- 38.1 0.0 0.0 Oct-89 4-40/P-43 7.1 0.0 0.0 Oct-92 4-48/K-43 + 16.5 0.0 0.0 Dec-90 Total 1389.3 2083.1 31.7 Note: Water injection volumes do not include Cretaceous injection. * Sidetracked in 9/97 ** Converted to production in 8/98 *** Converted to injection in 11/07 - Converted to production in 1/08 -- Converted to production in 4/96 --- Sidetracked in 3/08 and converted to production + SI since 4/97 Table 3 Endicott Oil Pool Injection Well Data Through 12/31/2008 9 Figure 2. Tracer Program – Endicott Field, Alaska BP Exploration, Alaska Inc 10 Endicott Oil Field 2008 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’s 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 (2A/2B/3A/3B/3C) in each of the two main producing areas of the reservoir. In order to provide representative data, changes have been made throughout time as both the reservoir and well characteristics have changed. Much more reservoir pressure data, other than the key well data, is gathered to address specific well and reservoir surveillance needs. Figure 3 is an Endicott well plot showing the location of the sixteen 2008 Key Well reservoir pressures. 2008 Pressure Monitoring Program Table 4 summarizes the wells included in the proposed 2008 Key Well Program. Table 5 summarizes the key well pressure data gathered in 2008. Appendix 4 lists 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 5 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 11 well reservoir pressures and other pressure gathered around the field. There are a few exceptions where wells are in small pressure isolated regions. 2009 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 occasionally necessitate changes to the pressure monitoring program in order to obtain representative data. As in previous years BPX plans to combine the MPI 3B and MPI 3C into a single pressure monitoring region. Only one well is completed in the MPI 3B interval and historic pressure data indicated reservoir pressures in the two intervals share a similar performance. Table 6 summarizes the 2009 Endicott key well pressure monitoring program proposal consisting of sixteen wells. As in past years, the amount of static pressure data obtained annually will likely exceed the sixteen wells included in the proposed 2009 Key Well Pressure Monitoring Program. At the operator’s discretion, representative reservoir pressures gathered in other wells during 2009 may be substituted 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. 12 Figure 3. 2008 Key Well Pressure Data – Endicott Field, Alaska BP Exploration, Alaska Inc 13 Well Area Subzone(s)Comments 1-01/J-19 Niakuk 2A, 2B Commingled pressure 1-19/I-18 Niakuk 2B 2-18/L-16 Niakuk 3A 2-26/N-14 Niakuk 3B, 3C Commingled pressure 3-25B/L-27 MPI 2A 1-61/Q-20 MPI 2B 2-48/O-13 MPI 3A Upper 3A monitor point 2-52/S-14 MPI 3B, 3C Commingled pressure 2-58/S-09 MPI 3C 3-39A/I-37 SDI 2A 3-29/J-32 SDI 2A, 2B, 3A Commingled pressure 3-35/L-36 SDI 3A 4-32/K-38 SDI 3A Lower 3A monitor point 4-28/N-37 SDI 3B, 3C Eastern area - commingled 4-18/S-30 SDI 3C Central area 2-40/S-22 SDI 3C Western area -commingled 2008 KEY WELL PRESSURE MONITORING PROGRAM PROPOSAL ENDICOTT FIELD TABLE 4 14 Well Area Subzone(s)Pressure 1-01/J-19 Niakuk 2A, 2B 4279 1-19/I-18 Niakuk 2B 4269 2-18/L-16 Niakuk 3A 3814 2-26/N-14 Niakuk 3B, 3C 2795 3-25B/L-27 MPI 2A 4152 1-61/Q-20 MPI 2B 4263 2-48/O-13 MPI 3A 4478 2-52/S-14 MPI 3B, 3C 4703 2-58/S-09 MPI 3C 2605 3-39A/I-37 SDI 2A 3855 3-29/J-32 SDI 2A, 2B, 3A 4106 3-35/L-36 SDI 3A 4338 4-32/K-38 SDI 3A 4547 4-28/N-37 SDI 3B, 3C 3260 4-18/S-30 SDI 3C 3682 2-40/S-22 SDI 3C 4310 DATUM: 10000' TVDss 2008 KEY WELL PRESSURE MONITORING PROGRAM ACTUALS ENDICOTT FIELD TABLE 5 15 Well Area Subzone(s)Comments 1-01/J-19 Niakuk 2A, 2B Commingled pressure 1-19/I-18 Niakuk 2B 2-18/L-16 Niakuk 3A 2-26/N-14 Niakuk 3B, 3C Commingled pressure 3-25B/L-27 MPI 2A 1-61/Q-20 MPI 2B 2-48/O-13 MPI 3A Upper 3A monitor point 2-52/S-14 MPI 3B, 3C Commingled pressure 2-58/S-09 MPI 3C 3-39A/I-37 SDI 2A 3-29/J-32 SDI 2A, 2B, 3A Commingled pressure 3-27/M-33 SDI 3A Upper 3A monitor point 4-32/K-38 SDI 3A Lower 3A monitor point 4-28/N-37 SDI 3B, 3C Eastern area - commingled 4-18/S-30 SDI 3C Central area 2-40/S-22 SDI 3C Western area -commingled 2009 KEY WELL PRESSURE MONITORING PROGRAM PROPOSAL ENDICOTT FIELD TABLE 6 16 Endicott Oil Field 2008 GOC Monitoring Program Introduction A Gas - Oil Contact (GOC) 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 a real gas cap limits of the reservoir. The initial GOC Monitoring Key Well Program consisted of six wells: 1-01/J-19, 1-09/J-18, 1-27/P-20, 1-29/M-25, 2-04/M-19, 3-01/N-29. Conservation Order No. 462, rule 9 (b) revoked the Key Well Monitoring Program and allowed the operator to submit modifications to the Gas Oil Monitoring Program for Commission approval. The details of the 2008 GOC Monitoring Program as submitted by the operator are listed in the section below. The GOC monitoring program for Endicott is based on the understanding of a limited ability to monitor field-wide 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° 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. The more massive high quality sands of the 3A and 2B subzones are where more regional GOC effects are more easily noted. Monitoring region gas movement in the 2A subzone is more tenuous due to the close proximity to gas and likelihood of localized gas coning and under runs. Monitoring gas movement in the 3B, and 3C subzones is not practical due to complex stratigraphy (shaliness). 17 2008 GOC Monitoring Program During 2008, a total of 5 cased hole neutron logs were acquired. 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 2008: Well Location Well Location 1-25A/K-22 MPI 1-45/Q-26 SDI 1-57/R-23 SDI 2-34/P-14 MPI 4-10A/L-28 MPI In addition to the cased hole neutron logs run in 2008, a total of 3 production logs were acquired. These logs are routinely used to understand changes in zonal performance and consequently the need for remedial intervention. Following is a list of wells from which production logs were acquired during 2008. Well Location Well Location 1-29/M-25 MPI 3-37/L-35 SDI 4-14A/S-37 SDI 2009 GOC Monitoring Program BPXA proposes a 2009 GOC Monitoring Program that consists of a notional five well program focusing on the 2A, 2B, and 3A intervals and to a lesser extent the 3B and 3C intervals. The 2A, 2B, and 3A intervals have the highest potential for monitoring depletion and improving recovery through effective reservoir management and the identification of potential infill drill locations. Production logging and down-hole mechanical isolation of gas prone intervals also provide a means to monitor gas influx. Together, these tools constitute an effective means to monitor gas movement at Endicott and will be a part of future GOC Monitoring Programs. Appendix 1 Production Rate versus Time Plots BP ALASKA - ENDICOTTMPI Region - Zone 1 Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTMPI Region - Zone 2A Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTMPI Region - Zone 2B Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTMPI Region - Zone 3A Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTMPI Region - Zone 3B Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTMPI Region - Zone 3C Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTNiakuk Region - Zone 2A Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTNiakuk Region - Zone 2B Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTNiakuk Region - Zone 3A Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTNiakuk Region - Zone 3B Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTNiakuk Region - Zone 3C Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTSDI Region - Zone 1 Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTSDI Region - Zone 2A Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTSDI Region - Zone 2B Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTSDI Region - Zone 3A Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTSDI Region - Zone 3B Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time BP ALASKA - ENDICOTTSDI Region - Zone 3C Production (Oil Rate, GOR, WC)878889909192939495969798990001020304050607081x1011x1021x1031x104(L1)1x1051x10-21x10-11x1001x101(R1)1x102(L1) Cal Day Oil (bbl/d)(L1) GOR (cf/bbl)(R1) Wtr Cut %VS Time Appendix 2 Cumulative Voidage versus Time Plots MPI Region - Zone 1CUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-15-14-12-10-7-5-3-2-17-90Cumulative Voidage (mmrb)VS Time MPI Region - Zone 2ACUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-33-29-24-20-10-6-13-38-158Cumulative Voidage (mmrb)VS Time MPI Region - Zone 2BCUMULATIVE VOIDAGE (injection-production)868788899091929394959697989900010203040506070812345678122144166188-10100210Cumulative Voidage (mmrb)VS Time MPI Region - Zone 3ACUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-304815192326-71230Cumulative Voidage (mmrb)VS Time MPI Region - Zone 3BCUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-20-18-15-13-9-7-4-2-22-110Cumulative Voidage (mmrb)VS Time MPI Region - Zone 3CCUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708111223253647485-104395Cumulative Voidage (mmrb)VS Time Niakuk Region - Zone 2ACUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-33-30-26-22-15-11-7-4-37-190Cumulative Voidage (mmrb)VS Time Niakuk Region - Zone 2BCUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-31-27-24-20-12-8-5-1-35-163Cumulative Voidage (mmrb)VS Time Niakuk Region - Zone 3ACUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-72-64-56-48-32-24-16-8-80-400Cumulative Voidage (mmrb)VS Time Niakuk Region - Zone 3BCUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-6-5-4-4-2-2-1-0-6-30Cumulative Voidage (mmrb)VS Time Niakuk Region - Zone 3CCUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-4-4-3-3-2-1-1-0-4-20Cumulative Voidage (mmrb)VS Time SDI Region - Zone 1CUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-0-0-0-0-0-0-0-0-0-00Cumulative Voidage (mmrb)VS Time SDI Region - Zone 2ACUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-153-136-119-102-68-51-34-17-170-850Cumulative Voidage (mmrb)VS Time SDI Region - Zone 2BCUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-28-17-6526374859-391670Cumulative Voidage (mmrb)VS Time SDI Region - Zone 3ACUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-52-46-40-34-22-16-10-4-58-282Cumulative Voidage (mmrb)VS Time SDI Region - Zone 3BCUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-9-6-219121619-13523Cumulative Voidage (mmrb)VS Time SDI Region - Zone 3CCUMULATIVE VOIDAGE (injection-production)8687888990919293949596979899000102030405060708-125-110-95-80-50-35-20-5-140-6510Cumulative Voidage (mmrb)VS Time Appendix 3 Injection Well Rate and Pressure versus Time Plots BP ALASKA - ENDICOTT1-05/O-20 Daily Gas Injection87888990919293949596979899000102030405060708014284256708498112126140(L1)0510102015302040255030603570408045905100(R1)(R1) Daily WHIP (psia)(L1) Daily Gas Inj (mmscf/d)VS Time8788899091929394959697989900010203040506070806800136002040027200340004080047600544006120068000Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT1-15/P-25 Daily Gas Injection87888990919293949596979899000102030405060708014284256708498112126140(L1)0510102015302040255030603570408045905100(R1)(R1) Daily WHIP (psia)(L1) Daily Gas Inj (mmscf/d)VS Time87888990919293949596979899000102030405060708025005000750010000125001500017500200002250025000Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT2-06/J-22 Daily Gas Injection878889909192939495969798990001020304050607080163248648096112128144160(L1)0510102015302040255030603570408045905100(R1)(R1) Daily WHIP (psia)(L1) Daily Gas Inj (mmscf/d)VS Time8788899091929394959697989900010203040506070805300106001590021200265003180037100424004770053000Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT2-12/Q-16 Daily Gas Injection87888990919293949596979899000102030405060708014284256708498112126140(L1)0510102015302040255030603570408045905100(R1)(R1) Daily WHIP (psia)(L1) Daily Gas Inj (mmscf/d)VS Time87888990919293949596979899000102030405060708-1100000-970000-840000-710000-580000-450000-320000-190000-6000070000200000Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT5-01/SD-07 Daily Gas Injection878889909192939495969798990001020304050607080153045607590105120135150(L1)0510102015302040255030603570408045905100(R1)(R1) Daily WHIP (psia)(L1) Daily Gas Inj (mmscf/d)VS Time878889909192939495969798990001020304050607080410082001230016400205002460028700328003690041000Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT1-23/O-15 Daily Water and MI Injection8788899091929394959697989900010203040506070804667933314000186672333328000(L1)071714332150286735834300(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT1-37/P-24 Daily Water and MI Injection878889909192939495969798990001020304050607080283356678500113331416717000(L1)04679331400186723332800(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT1-41/O-23 Daily Water and MI Injection8788899091929394959697989900010203040506070804333866713000173332166726000(L1)04509001350180022502700(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT1-43/P-26 Daily Water and MI Injection87888990919293949596979899000102030405060708073331466722000293333666744000(L1)053310671600213326673200(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT1-51/V-20 Daily Water and MI Injection8788899091929394959697989900010203040506070801833366755007333916711000(L1)04679331400186723332800(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT1-67/T-20 Daily Water and MI Injection8788899091929394959697989900010203040506070804000800012000160002000024000(L1)053310671600213326673200(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT1-69/V-19 Daily Water and MI Injection878889909192939495969798990001020304050607080250050007500100001250015000(L1)058311671750233329173500(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT2-02/P-18 Daily Water and MI Injection8788899091929394959697989900010203040506070803500700010500140001750021000(L1)04338671300173321672600(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT2-16/M-16 Daily Water and MI Injection87888990919293949596979899000102030405060708056671133317000226672833334000(L1)070014002100280035004200(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT2-22/L-14 Daily Water and MI Injection8788899091929394959697989900010203040506070804833966714500193332416729000(L1)01833366755007333916711000(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT2-24/M-12 Daily Water and MI Injection87888990919293949596979899000102030405060708020004000600080001000012000(L1)066713332000266733334000(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT2-34/P-14 Daily Water and MI Injection87888990919293949596979899000102030405060708058331166717500233332916735000(L1)060012001800240030003600(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT2-54/Q-12 Daily Water and MI Injection87888990919293949596979899000102030405060708065001300019500260003250039000(L1)055011001650220027503300(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT2-64/U-10 Daily Water and MI Injection878889909192939495969798990001020304050607080113322673400453356676800(L1)051710331550206725833100(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT2-70/U-15 Daily Water and MI Injection878889909192939495969798990001020304050607080266753338000106671333316000(L1)073314672200293336674400(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT3-35/L-36 Daily Water and MI Injection878889909192939495969798990001020304050607080163332674900653381679800(L1)04178331250166720832500(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT3-37/L-35 Daily Water and MI Injection8788899091929394959697989900010203040506070804500900013500180002250027000(L1)04178331250166720832500(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT3-41/K-39 Daily Water and MI Injection87888990919293949596979899000102030405060708095001900028500380004750057000(L1)058311671750233329173500(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT3-45/M-39 Daily Water and MI Injection8788899091929394959697989900010203040506070804333866713000173332166726000(L1)070014002100280035004200(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT3-47/Q-35 Daily Water and MI Injection8788899091929394959697989900010203040506070804667933314000186672333328000(L1)073314672200293336674400(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT3-49A/M-40 Daily Water and MI Injection8788899091929394959697989900010203040506070803833766711500153331916723000(L1)058311671750233329173500(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT4-02/Q-28 Daily Water and MI Injection8788899091929394959697989900010203040506070804333866713000173332166726000(L1)04679331400186723332800(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT4-04/T-26 Daily Water and MI Injection87888990919293949596979899000102030405060708050001000015000200002500030000(L1)070014002100280035004200(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT4-08/P-27 Daily Water and MI Injection8788899091929394959697989900010203040506070804333866713000173332166726000(L1)051710331550206725833100(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT4-14A/S-37 Daily Water and MI Injection878889909192939495969798990001020304050607080001111(L1)0001111(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT4-40/P-43 Daily Water and MI Injection87888990919293949596979899000102030405060708068331366720500273333416741000(L1)050010001500200025003000(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT4-48/K-43 Daily Water and MI Injection878889909192939495969798990001020304050607080316763339500126671583319000(L1)068313672050273334174100(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time BP ALASKA - ENDICOTT5-02/SD-10 Daily Water and MI Injection8788899091929394959697989900010203040506070803667733311000146671833322000(L1)04839671450193324172900(R1)(L1) Daily Water Inj (bbls)(L1) Daily Mi Inj (mscf)(R1) Daily WHIP (psia)VS Time8788899091929394959697989900010203040506070808152330Injectivity Index (bbl/psi)Injectivity Index (bbl/psi)Injectivity Index (scf/psi)VS Time Appendix 4 Historical Key Well Pressure Data ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATA MPI/NFB SDI DATE WELL 3C 3B 3A 2B 2A Z1 3C 3B 3A 2B 2A Z1 1987 9/5/1987 1-47/Q-21 4897 9/5/1987 1-47/Q-21 4897 10/1/1987 1-09/J-18 4889 10/1/1987 1-09/J-18 4889 11/10/1987 3-01/N-29 4839 11/22/1987 1-09/J-18 4813 12/5/1987 3-01/N-29 4696 12/12/1987 1-47/Q-21 4631 12/12/1987 1-47/Q-21 4631 1988 1/19/1988 1-35/O-25 4809 1/27/1988 2-52/S-14 4784 1/27/1988 2-52/S-14 4784 1/28/1988 1-29/M-25 4767 2/2/1988 1-09/J-18 4788 2/3/1988 2-62/Q-17 4736 2/15/1988 2-08/K-16 4800 2/15/1988 2-08/K-16 4750 2/15/1988 2-08/K-16 4789 2/28/1988 3-47/Q-35 4600 3/1/1988 3-33/K-37 4466 3/1/1988 3-33/K-37 4569 3/27/1988 3-01/N-29 4514 3/30/1988 3-35/L-36 4551 4/22/1988 1-35/O-25 4758 5/25/1988 3-05/O-29 4460 6/5/1988 1-55/R-25 4800 6/5/1988 1-55/R-25 4800 6/9/1988 1-29/M-25 4726 6/10/1988 1-35/O-25 4742 6/11/1988 3-01/N-29 4497 6/11/1988 2-62/Q-17 4671 6/16/1988 2-26/N-14 4820 6/16/1988 2-26/N-14 4820 6/21/1988 3-01/N-29 4494 6/29/1988 2-26/N-14 4838 6/29/1988 2-26/N-14 4838 7/23/1988 3-05/O-29 4497 7/27/1988 2-26/N-14 3718 7/27/1988 2-26/N-14 3718 7/30/1988 4-26/O-34 4600 7/30/1988 4-26/O-34 4590 7/30/1988 4-26/O-34 4528 7/30/1988 4-26/O-34 4850 7/30/1988 4-26/O-34 4400 9/4/1988 3-11/M-30 4469 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATA MPI/NFB SDI DATE WELL 3C 3B 3A 2B 2A Z1 3C 3B 3A 2B 2A Z1 9/4/1988 3-11/M-30 4576 9/4/1988 3-11/M-30 4525 9/4/1988 3-11/M-30 4563 9/4/1988 3-11/M-30 4436 9/18/1988 4-26/O-34 4411 10/7/1988 3-11/M-30 4504 10/8/1988 2-26/N-14 3320 10/8/1988 2-26/N-14 3320 10/10/1988 1-09/J-18 4628 10/11/1988 3-05/O-29 4590 10/13/1988 2-14/O-16 4678 10/20/1988 2-08/K-16 4532 10/20/1988 3-47/Q-35 4359 10/21/1988 1-29/M-25 4644 10/22/1988 1-35/O-25 4721 10/23/1988 3-01/N-29 4524 11/17/1988 1-35/O-25 4700 11/25/1988 1-09/J-18 4615 11/25/1988 1-09/J-18 4622 12/4/1988 3-11/M-30 4490 12/13/1988 1-49/P-21 4563 12/13/1988 2-08/K-16 4491 1989 1/5/1989 2-26/N-14 2800 1/5/1989 2-26/N-14 2800 1/15/1989 3-35/L-36 4993 2/2/1989 2-26/N-14 2894 2/2/1989 2-26/N-14 2894 2/21/1989 4-26/O-34 3909 3/19/1989 1-29/M-25 4635 3/20/1989 2-46/Q-15 4450 3/20/1989 2-46/Q-15 4732 3/20/1989 2-46/Q-15 4509 3/20/1989 2-46/Q-15 4731 3/25/1989 1-35/O-25 4631 3/29/1989 3-47/Q-35 4278 4/3/1989 3-33/K-37 4405 4/18/1989 4-26/O-34 4019 4/27/1989 2-26/N-14 3287 4/27/1989 2-26/N-14 3287 5/7/1989 1-49/P-21 4440 5/11/1989 2-14/O-16 4623 5/11/1989 2-14/O-16 4614 6/6/1989 1-09/J-18 4634 6/6/1989 1-09/J-18 4640 6/21/1989 2-08/K-16 4600 6/21/1989 2-08/K-16 4600 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATA MPI/NFB SDI DATE WELL 3C 3B 3A 2B 2A Z1 3C 3B 3A 2B 2A Z1 6/21/1989 2-46/Q-15 4420 6/21/1989 2-46/Q-15 4420 8/3/1989 2-52/S-14 4456 8/3/1989 1-47/Q-21 4410 8/3/1989 2-52/S-14 4456 8/3/1989 1-47/Q-21 4410 8/4/1989 2-46/Q-15 4427 8/4/1989 2-46/Q-15 4427 8/15/1989 3-47/Q-35 4317 8/19/1989 3-05/O-29 4332 8/21/1989 3-01/N-29 4421 9/12/1989 4-50/K-41 4780 9/12/1989 4-50/K-41 4280 9/23/1989 4-26/O-34 4000 9/23/1989 4-26/O-34 4143 9/24/1989 1-35/O-25 4570 9/25/1989 2-62/Q-17 4600 10/29/1989 3-11/M-30 4440 11/25/1989 2-52/S-14 4505 11/25/1989 2-52/S-14 4505 11/27/1989 3-05/O-29 4417 12/22/1989 2-46/Q-15 4456 12/22/1989 2-46/Q-15 4456 12/30/1989 3-33/K-37 4437 12/30/1989 3-33/K-37 4432 1990 1/3/1990 1-45/Q-26 4411 2/7/1990 2-26/N-14 4006 2/7/1990 2-26/N-14 4006 2/25/1990 3-05/O-29 4506 2/26/1990 2-62/Q-17 4642 2/26/1990 1-47/Q-21 4453 2/26/1990 1-47/Q-21 4453 2/28/1990 1-35/O-25 4611 3/1/1990 1-49/P-21 4557 3/17/1990 2-14/O-16 4606 3/17/1990 2-14/O-16 4628 3/19/1990 1-09/J-18 4667 3/19/1990 1-09/J-18 4639 3/22/1990 1-55/R-25 4322 3/22/1990 1-55/R-25 4322 4/5/1990 1-55/R-25 4369 4/5/1990 1-55/R-25 4369 4/9/1990 4-26/O-34 4147 4/9/1990 4-26/O-34 4029 4/29/1990 4-50/K-41 4976 4/29/1990 4-50/K-41 4426 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATA MPI/NFB SDI DATE WELL 3C 3B 3A 2B 2A Z1 3C 3B 3A 2B 2A Z1 5/1/1990 1-45/Q-26 4370 5/1/1990 1-45/Q-26 4400 5/2/1990 2-18/L-16 4617 5/2/1990 2-18/L-16 4660 5/2/1990 2-18/L-16 4725 5/24/1990 2-08/K-16 4660 5/24/1990 2-08/K-16 4684 8/11/1990 4-26/O-34 3971 8/12/1990 1-35/O-25 4714 8/12/1990 1-29/M-25 4707 8/12/1990 2-26/N-14 3486 8/12/1990 2-26/N-14 3486 8/13/1990 2-52/S-14 4500 8/13/1990 2-52/S-14 4500 8/13/1990 2-46/Q-15 4465 8/13/1990 2-46/Q-15 4465 8/13/1990 1-49/P-21 4708 8/14/1990 4-26/O-34 3838 10/10/1990 3-33/K-37 4414 10/10/1990 3-33/K-37 4357 10/20/1990 3-01/N-29 4427 10/28/1990 3-11/M-30 4376 1991 4/22/1991 1-49/P-21 4761 4/30/1991 2-46/Q-15 4339 4/30/1991 2-46/Q-15 4339 5/12/1991 1-47/Q-21 4227 5/12/1991 1-47/Q-21 4227 5/15/1991 2-26/N-14 1823 5/15/1991 2-26/N-14 1823 5/18/1991 1-09/J-18 4922 5/18/1991 1-09/J-18 4931 5/23/1991 2-08/K-16 4961 5/23/1991 2-18/L-16 4903 5/28/1991 3-11/M-30 4704 6/1/1991 1-45/Q-26 4108 6/1/1991 1-45/Q-26 4108 6/4/1991 3-47/Q-35 4157 6/4/1991 2-62/Q-17 4783 6/7/1991 1-55/R-25 4140 6/7/1991 1-55/R-25 4140 6/17/1991 3-33/K-37 4724 6/17/1991 3-33/K-37 4750 6/26/1991 4-08/P-27 4815 7/15/1991 3-25/M-27 4813 7/24/1991 3-25/M-27 4894 9/14/1991 2-14/O-16 4900 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATA MPI/NFB SDI DATE WELL 3C 3B 3A 2B 2A Z1 3C 3B 3A 2B 2A Z1 9/14/1991 2-14/O-16 4803 10/6/1991 2-62/Q-17 4872 10/7/1991 1-49/P-21 4898 10/12/1991 4-08/P-27 4771 10/19/1991 3-33/K-37 4562 10/19/1991 3-33/K-37 4473 11/12/1991 1-47/Q-21 4180 11/12/1991 1-47/Q-21 4180 11/18/1991 2-08/K-16 4657 11/18/1991 2-08/K-16 4725 11/20/1991 2-18/L-16 4657 1992 1/22/1992 2-46/Q-15 4245 1/22/1992 2-46/Q-15 4245 1/29/1992 1-09/J-18 4824 1/29/1992 1-09/J-18 4796 3/27/1992 1-49/P-21 4869 3/31/1992 2-62/Q-17 4890 4/3/1992 4-08/P-27 4657 4/6/1992 1-45/Q-26 3919 4/6/1992 1-45/Q-26 3919 4/10/1992 3-47/Q-35 4608 4/19/1992 2-26/N-14 1482 4/19/1992 2-26/N-14 1482 5/9/1992 3-11/M-30 4739 5/15/1992 3-25/M-27 4874 5/15/1992 3-25/M-27 4779 5/18/1992 3-33/K-37 4751 5/18/1992 3-33/K-37 4726 6/2/1992 4-50/K-41 3966 6/15/1992 2-52/S-14 3952 6/15/1992 2-52/S-14 3952 7/23/1992 2-14/O-16 4846 7/23/1992 2-14/O-16 4841 7/26/1992 1-29/M-25 4767 7/26/1992 2-18/L-16 4693 7/27/1992 1-47/Q-21 4087 7/31/1992 4-26/O-34 3033 11/17/1992 2-14/O-16 4879 11/18/1992 2-62/Q-17 4852 11/23/1992 1-45/Q-26 4470 11/23/1992 1-45/Q-26 3762 11/24/1992 4-08/P-27 4393 11/26/1992 1-49/P-21 4865 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATA MPI/NFB SDI DATE WELL 3C 3B 3A 2B 2A Z1 3C 3B 3A 2B 2A Z1 11/28/1992 2-26/N-14 1229 11/28/1992 2-26/N-14 1229 11/30/1992 3-47/Q-35 4399 12/4/1992 3-33/K-37 4542 12/4/1992 3-33/K-37 4639 12/5/1992 3-25/M-27 4776 12/5/1992 3-25/M-27 4896 12/5/1992 2-52/S-14 4572 12/5/1992 2-52/S-14 4572 12/19/1992 3-11/M-30 4671 12/30/1992 4-26/O-34 2484 1993 1/7/1993 4-50/K-41 3700 1/7/1993 4-50/K-41 5172 5/3/1993 1-47/Q-21 4065 5/3/1993 1-47/Q-21 4065 5/18/1993 2-62/Q-17 4862 5/20/1993 2-26/N-14 1513 5/20/1993 2-26/N-14 1513 5/21/1993 1-49/P-21 4919 5/23/1993 3-47/Q-35 4904 7/16/1993 3-25/M-27 4713 7/16/1993 3-25/M-27 4780 7/21/1993 2-18/L-16 4390 7/24/1993 4-26/O-34 2279 7/24/1993 4-26/O-34 2811 8/25/1993 1-09/J-18 4691 8/25/1993 1-09/J-18 4638 9/19/1993 3-25/M-27 4621 9/24/1993 1-35/O-25 4643 11/1/1993 4-50/K-41 4575 11/1/1993 4-50/K-41 3359 11/7/1993 3-11/M-30 4335 11/7/1993 3-11/M-30 4316 11/9/1993 2-46/Q-15 4549 11/10/1993 1-45/Q-26 4435 4211 11/24/1993 2-50/U-08 3801 1994 3/17/1994 1-47/Q-21 4628 3/19/1994 1-35/O-25 4555 3/22/1994 3-03/J-33 3905 3/24/1994 3-47/Q-35 4283 4/17/1994 2-58/S-09 2497 4/18/1994 2-62/Q-17 4773 4/20/1994 2-18/L-16 4309 4/25/1994 2-52/S-14 4449 4736 4608 5/16/1994 1-45/Q-26 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATA MPI/NFB SDI DATE WELL 3C 3B 3A 2B 2A Z1 3C 3B 3A 2B 2A Z1 6/7/1994 2-26/N-14 1370 1/7/1995 1-49/P-21 4704 1/1/1995 1-09/J-18 4367 7/14/1994 4-38/K-34 3829 11/20/1994 3-11/M-30 4452 11/30/1994 4-26/O-34 2817 1/6/1995 2-14/O-16 4303 12/23/1994 3-25/M-27 4232 12/9/1994 4-50/K-41 4277 1995 1/7/1995 1-49/P-21 4704 1/14/1995 1-45/Q-26 5194 5194 1/17/1995 1-61/Q-20 4603 1/20/1995 3-15/K-33 4301 4/4/1995 2-46/Q-15 4930 4930 4/24/1995 4-18/S-30 4924 5/2/1995 3-05/O-29 4745 5/3/1995 2-52/S-14 4713 4713 5/8/1995 2-58/S-09 2223 7/3/1995 1-09/J-18 4498 10/19/1995 1-19/I-18 4348 10/20/1995 1-33/M-23 4380 12/8/1995 2-18/L-16 4040 12/16/1995 2-26/N-14 1590 1590 12/28/1995 4-50/K-41 4916 1996 1/4/1996 3-43/P-36 3658 1/13/1996 1-01/J-19 4243 1/23/1996 2-18/L-16 4184 1/26/1996 3-11/M-30 4566 1/27/1996 1-31/M-21 4366 1/28/1996 2-52/S-14 5019 1/30/1996 4-18/S-30 4985 2/17/1996 2-42/P-13 5001 2/28/1996 1-09/J-18 4542 3/3/1996 1-65/N-25 4564 3/7/1996 1-57/R-23 5097 3/10/1996 1-35/O-25 4604 3/28/1996 2-64/U-10 5055 4/1/1996 3-21/L-34 4657 4/2/1996 3-39/J-39 4788 4/6/1996 1-39/P-17 4656 4/6/1996 2-26/N-14 1934 4/14/1996 2-58/S-09 2215 4/15/1996 1-67/T-20 4260 4/19/1996 3-23/N-32 2428 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATA MPI/NFB SDI DATE WELL 3C 3B 3A 2B 2A Z1 3C 3B 3A 2B 2A Z1 4/21/1996 3-09/L-28A 4382 4/21/1996 3-15/K-33 4154 5/9/1996 2-50/U-08 3456 7/20/1996 3-37/L-35 4514 7/20/1996 4-10/M-28 4382 8/10/1996 4-26/O-34 3156 8/16/1996 3-47/Q-35 5654 9/2/1996 3-35/L-35 4374 9/19/1996 3-33/K-37 4550 10/16/1996 4-06/Q-32 5179 11/11/1996 4-32/K-38 4524 11/25/1996 4-38/K-34 3883 11/16/1996 1-21/K-25 4372 12/12/1996 1-63/T-22 4983 12/16/1996 2-16/M-16 4791 4810 1997 1/14/1997 4-34/O-38 4652 2/4/1997 1-09/J-19 4548 2/22/1997 4-50/K-41 4964 3/29/1997 1-17A/I-17 3649 3/31/1997 2-58/S-09 2483 4/1/1997 2-52/S-14 5305 4/2/1997 4-18/S-30 5203 4/5/1997 1-09A/L-21 3911 4/5/1997 2-60/U-13 4709 4/14/1997 2-26/N-14 2391 4/15/1997 1-25/N-22 4335 4/16/1997 1-17A/I-17 3817 4/16/1997 1-57/R-23 4990 4/24/1997 3-49A/M-40 3996 5/4/1997 2-50/U-08 3622 5/4/1997 4-06A/Q-30 4659 5/9/1997 2-42/P-13 4848 5/13/1997 3-39/J-39 4526 6/6/1997 1-03/P-16 4537 6/19/1997 1-25A/K-22 3937 6/28/1997 3-39A/I-37 3468 7/1/1997 2-20/L-15 1431 7/1/1997 2-24/M-12 4596 7/5/1997 1-21/K-25 2287 7/9/1997 1-61/Q-20 4567 7/16/1997 3-35/L-36 4971 7/26/1997 3-17B/M-31 4202 7/26/1997 3-49A/M-40 3595 7/30/1997 2-14/O-16 4428 8/5/1997 1-01/J-19 4378 8/5/1997 1-31/M-21 4386 8/7/1997 1-39/P-17 4650 8/7/1997 3-23/N-32 4466 8/23/1997 3-15/K-33 4414 8/28/1997 4-32/K-38 4380 9/24/1997 1-09A/L-21 3186 9/30/1997 2-44/R-12 5314 10/3/1997 4-50/K-41 5494 10/13/1997 2-18/L-16 4381 10/29/1997 3-17B/M-31 4723 11/14/1997 4-48/K-43 4980 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATA MPI/NFB SDI DATE WELL 3C 3B 3A 2B 2A Z1 3C 3B 3A 2B 2A Z1 11/15/1997 2-46B/S-13 4801 12/13/1997 3-03/J-33 3665 12/21/1997 3-27/M-33 4281 1998 1/6/1998 1-17A/I-17 3410 2/12/1998 1-25A/K-22 3070 2/13/1998 3-29/J-32 4617 2/20/1998 3-39A/I-37 4229 2/20/1998 4-34/O-38 5143 2/22/1998 3-31/K-32 4470 3/3/1998 1-33/M-23 4324 3/19/1998 1-61/Q-20 4577 3/19/1998 2-08/K-16 4240 3/20/1998 2-18/L-16 4190 3/21/1998 1-03/P-16 4556 3/22/1998 1-09A/L-21 2797 3/22/1998 2-26/N-14 2739 3/31/1998 1-39/P-17 4661 3/31/1998 1-57/R-23 5166 4/3/1998 3-33/K-37 4798 4/8/1998 3-05/O-29 4437 4/8/1998 4-20/M-35 4856 4/13/1998 4-18/S-30 5375 6/10/1998 2-52/S-14 5387 6/15/1998 3-37/L-35 4180 6/22/1998 2-58/S-09 3209 7/15/1998 1-33/M-23 4294 7/20/1998 1-31/M-21 4288 8/15/1998 4-02/Q-28 5225 8/21/1998 2-60/U-13 5118 8/31/1998 4-38/K-34 4088 9/26/1998 1-01/J-19 4313 9/26/1998 1-47A/M-20 4266 9/26/1998 2-44A/Q-11 4573 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATA MPI/NFB SDI DATE WELL 3C 3B 3A 2B 2A Z1 3C 3B 3A 2B 2A Z1 9/27/1998 2-20/L-15 1447 9/27/1998 4-32/K-38 4583 10/15/1998 2-30/O-09 4175 10/15/1998 3-07A/L-29 4290 10/20/1998 3-17D/M-31 4910 12/23/1998 1-25A/K-22 2962 1999 2/2/1999 2-22/L-14 4193 2/20/1999 1-33B/L-24 4306 2/22/1999 3-33/K-37 4641 2/23/1999 1-57/R-23 4931 2/23/1999 3-35/L-36 5250 2/28/1999 2-08/K-16 4173 2/28/1999 2-26/N-14 2828 2828 3/1/1999 2-42/P-13 5340 3/2/1999 2-52/S-14 5263 5263 3/3/1999 4-02/Q-28 4966 3/12/1999 1-39/P-17 4639 3/12/1999 1-61/Q-20 4530 3/13/1999 2-58/S-09 3055 3/13/1999 2-18/L-16 4115 3/13/1999 1-01/J-19 4299 6/20/1999 4-32/K-38 4692 6/20/1999 3-39A/I-37 4456 7/30/1999 1-25A/K-22 3301 9/11/1999 4-34/O-38 5776 9/11/1999 1-35/O-25 4643 9/12/1999 3-11/M-30 4587 9/13/1999 1-17A/I-17 4060 9/13/1999 3-01/N-29 5043 9/14/1999 1-19/I-18 4254 9/17/1999 2-44A/Q-11 4632 4632 9/17/1999 1-09A/L-21 2679 10/12/1999 1-67/T-20 4474 10/24/1999 3-49A/M-40 4491 11/4/1999 3-03/J-33 3473 11/4/1999 2-18/L-16 4242 11/15/1999 4-18/S-30 4332 2000 1/6/2000 3-15/K-33 4550 1/9/2000 3-23/N-32 4901 2/13/2000 3-25/M-27 4352 3/20/2000 3-33/K-37 4699 3/22/2000 3-35/L-36 5178 5/3/2000 2-62/Q-17 5157 5157 5/5/2000 2-52/S-14 5159 5159 5/6/2000 2-42/P-13 5156 5/6/2000 1-57/R-23 4270 5/7/2000 2-26/N-14 5898 5898 5/8/2000 1-39/P-17 4724 5/8/2000 3-23/N-32 4940 5/13/2000 3-03/J-33 3844 6/9/2000 2-58/S-09 2685 6/13/2000 3-37/L-35 4625 7/5/2000 3-01/N-29 4812 7/11/2000 3-39A/I-37 4319 9/17/2000 1-01/J-20 4308 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATA MPI/NFB SDI DATE WELL 3C 3B 3A 2B 2A Z1 3C 3B 3A 2B 2A Z1 9/17/2000 1-33B/L-24 4317 9/17/2000 1-61/Q-20 4547 9/18/2000 1-09A/L-21 2505 9/19/2000 4-32/K-38 4666 11/23/2000 3-15/K-33 4443 11/24/2000 1-47A/M-20 4276 12/7/2000 2-18/L-16 4156 4156 12/15/2000 4-18/S-30 4375 12/26/2000 2-28/P-19 4585 2001 3/4/2001 3-25/M-27 4302 3/18/2001 1-25/K-22 2698 3/19/2001 1-35/O-25 4563 3/19/2001 1-61/Q-20 4502 3/20/2001 1-03/P-16 4497 3/21/2001 1-57/R-23 5019 3/23/2001 2-50/U-08 3210 3/23/2001 2-58/S-09 2615 3/24/2001 2-52/S-14 5277 5277 3/25/2001 3-35/L-36 5161 3/26/2001 3-33/K-37 4636 4/14/2001 2-26/N-14 6137 6137 4/21/2001 1-39/P-17 4766 4/25/2001 2-42/P-13 5282 5/5/2001 1-01/J-19 4098 4098 5/6/2001 3-39A/I-37 4458 5/10/2001 4-38/K-34 4230 4230 5/18/2001 1-47A/M-20 4194 5/22/2001 3-17D/M-31 4341 5/23/2001 3-23/N-32 4900 5/25/2001 2-44A/Q-11 5010 5010 6/6/2001 1-29/M-25 4079 6/14/2001 2-06/J-22 4200 7/23/2001 1-19/I-18 4257 9/4/2001 2-22/L-14 4334 9/23/2001 1-33B/L-24 4212 9/23/2001 2-18/L-16 3903 9/24/2001 4-18/S-30 4644 12/15/2001 4-32/K-38 4636 2002 1/11/2002 2-20/L-15 2076 2076 2/25/2002 1-03/P-16 4566 3/25/2002 3-33/K-37 4587 4/15/2002 2-58/S-09 3084 4/16/2002 1-09A/L-21 2308 4/16/2002 3-39A/I-37 4242 5/16/2002 4-20/M-35 4518 7/30/2002 1-01/J-19 4255 4255 7/31/2002 1-33B/L-24 4286 7/31/2002 1-61/Q-20 4502 10/10/2002 3-07A/L-29 4199 10/12/2002 4-32/K-38 4334 10/22/2002 2-08/K-16 4306 10/22/2002 1-57/R-23 4367 10/22/2002 4-18/S-30 4171 11/27/2002 2-58/S-09 2908 11/28/2002 2-52/S-14 5092 5092 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATA MPI/NFB SDI DATE WELL 3C 3B 3A 2B 2A Z1 3C 3B 3A 2B 2A Z1 12/26/2002 2-26/N-14 6290 6290 12/27/2002 1-39/P-17 4702 4702 4702 12/29/2002 3-35/L-36 5000 12/29/2002 3-23/N-32 4567 2003 1/8/2003 1-43/P-26 5182 3/22/2003 3-17E/K-30 4277 4/12/2003 2-28/O-19 4281 4/29/2003 3-25/L-27 4257 5/1/2003 1-03/P-16 4534 6/4/2003 1-33B/L-24 4371 7/15/2003 1-39/P-17 4729 4729 4729 7/15/2003 2-52/S-14 5072 5072 7/16/2003 4-18/S-30 4098 7/16/2003 3-33/K-37 4476 7/16/2003 4-32/K-38 4371 7/17/2003 3-39A/I-37 4319 7/21/2003 2-58/S-09 3054 7/21/2003 3-35/L-36 4960 9/28/2003 4-10A/L-28 4217 9/28/2003 2-18/L-16 4127 9/28/2003 1-57/R-23 4080 9/29/2003 1-25A/K-22 2553 11/28/2003 2-26/N-14 4532 4532 12/1/2003 1-19/I-18 4382 2004 1/1/2004 2-36/O-14 4618 3/23/2004 2-46B/S-13 2681 5/5/2004 2-20/L-15 1827 1827 8/18/2004 4-32/K-38 4448 8/20/2004 1-39/P-17 4633 4633 4633 8/20/2004 2-18/L-16 4148 8/21/2004 1-55/R-25 3946 3946 8/22/2004 1-03/P-16 4442 8/22/2004 3-43/P-36 3829 8/23/2004 3-25B/L-27 4168 11/29/2004 2-40/S-22 4433 11/1/2004 2-58/S-09 4059 11/2/2004 2-26/N-14 4106 4106 11/2/2004 3-31/K-32 4923 11/2/2004 3-35/L-36 4923 11/3/2004 3-39A/I-37 4269 11/10/2004 2-52/S-14 4810 4810 11/22/2004 1-01/J-19 4355 12/11/2004 2-14/O-16 4305 2005 4/11/2005 1-25A/K-22 2156 4/13/2005 1-01/J-19 4282 5/8/2005 4-28/N-37 4546 4546 5/31/2005 3-25B/L-27 4195 5/31/2005 3-29/J-32 4278 4278 5/31/2005 3-35/L-36 4367 6/1/2005 3-39A/I-37 4318 6/1/2005 4-32/K-38 4577 6/9/2005 1-39/P-17 4581 6/9/2005 2-26/N-14 3939 3939 7/25/2005 2-52/S-14 4764 4764 ENDICOTT OIL FIELD HISTORICAL KEY WELL PRESSURE DATA MPI/NFB SDI DATE WELL 3C 3B 3A 2B 2A Z1 3C 3B 3A 2B 2A Z1 7/26/2005 2-58/S-09 2709 7/27/2005 2-40/S-22 4351 4351 9/1/2005 2-18/L-16 3684 9/27/2005 1-61/Q-20 4375 10/6/2005 4-18/S-30 3994 11/2/2005 1-19/I-18 4129 2006 1/26/2006 2-22/L-14 4189 4189 4189 3/4/2006 1-57/R-23 4475 4475 7/23/2006 1-39/P-17 4369 7/24/2006 3-39A/I-37 4130 7/25/2006 4-28/N-37 4108 4108 9/3/2006 1-19/I-18 4135 9/5/2006 3-29/J-32 4226 4226 4226 9/12/2006 1-61/Q-20 4263 9/14/2006 1-01/J-19 4186 4186 9/15/2006 3-35/L-36 4421 9/16/2006 4-18/S-30 4089 9/17/2006 2-52/S-14 4889 9/20/2006 2-58/S-09 3445 9/25/2006 3-25B/L-27 4120 9/25/2006 4-32/K-38 4424 10/6/2006 2-26/N-14 3723 3723 2007 2/11/2007 2-48/O-13 4355 3/4/2007 2-08/K-16 4338 4338 6/29/2007 1-01/J-19 4728 4728 6/29/2007 2-26/N-14 3640 3640 7/6/2007 3-35/L-36 4567 7/6/2007 3-39A/I-37 4219 7/7/2007 4-32/K-38 4449 7/9/2007 3-25B/L-27 4138 7/10/2007 4-18/S-30 3831 7/13/2007 3-29/J-32 4280 4280 4280 7/13/2007 1-61/Q-20 4243 7/28/2007 2-52/S-14 4761 4761 8/2/2007 2-58/S-09 3422 8/7/2007 4-28/N-37 3561 3561 11/10/2007 2-08/K-16 4153 4153 2008 5/9/2008 4-18/S-30 3682 5/19/2008 2-52/S-14 4703 4703 5/19/2008 4-32/K-38 4547 5/20/2008 1-19/I-18 4269 5/24/2008 1-61/Q-20 4263 5/25/2008 2-18/L-16 3814 5/26/2008 2-48/O-13 4478 5/26/2008 3-39A/I-37 3855 6/14/2008 3-35/L-36 4338 6/30/2008 1-01/J-19 4279 4279 7/20/2008 2-26/N-14 2795 2795 9/13/2008 3-25B/L-27 4152 9/14/2008 4-28/N-37 3260 3260 9/15/2008 2-58/S-09 2605 9/16/2008 3-29/J-32 4106 4106 4106 9/19/2008 2-40/S-22 4310 Appendix 5 Reservoir Pressure vs. Time Zone:1Pressure vs. Time1000150020002500300035004000450050005500600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Pressure at 10,000 ft TVD ss DatumMPI Key WellsMPI All WellsSDI All WellsBP Exploration, Endicott Region: MPI Zone:2APressure vs. Time300035004000450050005500600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11Pressure at 10,000 ft TVD ss DatumKey WellNon-KeyWellsBP Exploration, Endicott Region: MPI Zone:2BPressure vs. Time300035004000450050005500600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Pressure at 10,000 ft TVD ss DatumKey WellNon-KeyWellsBP Exploration, Endicott Region: MPI Zone: 3APressure vs. Time300035004000450050005500600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Pressure at 10,000 ft TVD ss DatumKey WellNon-KeyWellsBP Exploration, Endicott Region: MPI Zone: 3BPressure vs. Time300035004000450050005500600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Key WellNon-KeyWellsBP Exploration, Endicott Region: MPI Zone: 3CPressure vs. Time10002000300040005000600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Key WellNon-KeyWellsBP Exploration, Endicott Region: NFB Zone: 2APressure vs. Time3500400045005000550087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Pressure at 10,000 ft TVD ss DatumKey WellNon-KeyWellsBP Exploration, Endicott Region: NFB Zone: 2BPressure vs. Time3500400045005000550087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Pressure at 10,000 ft TVD ss DatumKey WellNon-KeyWellsBP Exploration, Endicott Region: NFB Zone: 3APressure vs. Time100015002000250030003500400045005000550087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Pressure at 10,000 ft TVD ss DatumKey WellNon-KeyWellsBP Exploration, Endicott Region: NFB Zone: 3BPressure vs. Time10002000300040005000600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Key WellNon-KeyWellsBP Exploration, Endicott Region: MPI Zone: 3CPressure vs. Time10002000300040005000600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Key WellNon-KeyWellsBP Exploration, Endicott Region: SDI Zone: 2APressure vs. Time30003500400045005000550087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Pressure at 10,000 ft TVD ss DatumKey WellNon-KeyWellsBP Exploration, Endicott Region: SDI Zone: 2BPressure vs. Time3500400045005000550087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Pressure at 10,000 ft TVD ss DatumKey WellNon-KeyWellsBP Exploration, Endicott Region: SDI Zone: 3APressure vs. Time300035004000450050005500600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Pressure at 10,000 ft TVD ss DatumKey WellNon-KeyWellsBP Exploration, Endicott Region: SDI Zone: 3BPressure vs. Time10002000300040005000600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Pressure at 10,000 ft TVD ss DatumKey WellNon-KeyWellsBP Exploration, Endicott Region: SDI Zone: 3CPressure vs. Time20002500300035004000450050005500600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10Pressure at 10,000 ft TVD ss DatumKey WellNon-KeyWellsBP Exploration, Endicott Appendix 6 Endicott Shut-in Well List Sw Name Date Shut- In Reason for Well Shut-In1 Current Mechanical Condition of Well2 Future Utility Plans & Possibilities3 Comments 1-37/P-24 Jan-07 D - Mechanical Problem TXIA communication. Tubing was chemical cut in prep for RW O - cancelled. Well is secured with CIBP. 3. Long term shut-in well/no immediate plans 1-45/Q-26 Nov-05 D - Mechanical Problem TXIA communication. Secured with tubing tail plug 1. Evaluating remedial options 1-49/P-21 May-07 B - High WC D - Mechanical Problem TXIA communication. Well is secured with IBP. 1. Evaluating remedial options and/or sidetrack opportunities. 2-24/M-12 May-03 D.Mechanical problem TXIAXOA communication. Secured with tubing tail plug 3. Long term shut-in well/no immediate plans 2-30A/EI02 Dec-06 A, B High TGOR & High water IA X OA X OOA Communication. 1. Evaluating remedial options and/or sidetrack opportunities. Well is being sidtracked in 1Q 2009 2-38/SN-01 Mar-04 B, D - High Water & Mechanical Problem TXIA communication. Secured with tubing tail plug 3. Long term shut-in well/no immediate plans 2-42//P-13 Jul-02 D. Mechanical Problem TXIA communication. Secured with tubing tail plug. Fish in the tubing. 3. Long term shut-in well/no immediate plans 2-68/S-17 Aug-07 D - Mechanical Problem T x IA communication. Secured with tubing tail plug. 3. Long term shut-in well/no immediate plans 2-70/U-15 Aug-06 D - Mechanical Problem TXIA communication. Secured with tubing tail plug 3. Long term shut-in well/no immediate plans 3-01/N-29 Apr-05 D - Mechanical Problem IAXOA communication to gas 6. Other Well is being converted to water injection 3-05/O-29 Apr-07 D - Mechanical Problem IAXOA communication. Well is secured with TTP. 1. Evaluating remedial options and/or sidetrack opportunities. 3-11/M-30 Mar-05 D - Mechanical Problem T x IA communication. Secured with cement & cement retainer. 3. Long term shut in/ no immediate plans 3-19/R-28 Jun-03 B. D - High Water & Mechanical Problem TXIA communication. Secured with tubing tail plug 1. Evaluating remedial options 3-23/N-32 Nov-05 B. & D - High Water & Mechanical Problem IA X OA communication. Secured with tubing tail plug. 3. Long term shut in/ no immediate plans 4-08/P-27 Nov-05 D - Mechanical Problem TXIA communication. Secured with tubing tail plug 1. Evaluating remedial options 4-26/O-34 Jan-07 B - High WC D - Mechanical Problem TXIA communication. Well is secured with TTP. 1. Evaluating remedial options and/or sidetrack opportunities. 4-40/P-43 Dec-05 C, D- Low rate injector & Mechanical Problem TXIA communication. Secured with a tubing tail plug. 3. Long term shut-in well/no immediate plans 4-44/M-44 Jun-92 C, D - Low Rate Injector & Mechanical Problem TXIA communication. Secured with wrieline retrievable plug. 3. Long term shut-in well/no immediate plans ENDICOTT/SAG DELTA NORTH/EIDER Shut-In Wells for all of 2008