The URL can be used to link to this page

Home My WebLink About2012 Endicott Oil Pool 2012 Reservoir Surveillance Report Endicott Oil Pool March 31, 2013 Includes: Waterflood Surveillance Program Key Well Pressure Monitoring Program GOC Monitoring Program 2012 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 Plot Page 10 Pressure Monitoring Program: Introduction Page 11 2012 Pressure Monitoring Program Page 11 2013 Pressure Monitoring Proposal Page 12 Figure 3: Endicott Field Well Plat (highlighting Key Wells) Page 13 Table 4: 2012 Key Well Pressure Monitoring Proposal Page 14 Table 5: 2012 Key Well Pressure Monitoring Results Page 15 Table 6: 2013 Key Well Pressure Monitoring Proposal Page 16 GOC Monitoring Program: Introduction Page 17 2012 Gas-Oil Contact Monitoring Program Page 18 2013 Gas-Oil Contact Monitoring Proposal Page 18 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 2012 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 2012. 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 2012. 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 June 2010, well 1-15/P-25 was returned to service on numerous occasions while wellwork was planned and executed on the primary gas injectors. In June 2011 well 1-15/P-25 failed an MIT-IA and was shut in for tubing by inner annulus communication. Non-rig attempts to restore integrity have failed 3 and well 1-15/P-25 is currently shut-in. 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 and Niakuk 2A which currently has no off-take. 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. There was no MI injection at Endicott due to facility start up issues. Produced gas samples would have been collected in all of the producers offset from the injection wells in order to monitor MI breakthrough if MI was injected. Figure 1 shows a map of the field with well status as of December 31, 2012 including the existing water injectors, gas injectors and oil producers. Figure 2 is an Endicott well plat showing the tracer data for the LoSal™ Pilot. Figure 3 is an Endicott well plot showing the location of the fifteen Key Well reservoir pressures. Table 1 summarizes total production, injection, and well count for the entire pool through December 2012. Table 2 details the reservoir balances by area and subzone through December 2012. Table 3 provides an overview of the performance of each of the pressure maintenance injectors. Table 4 and 5 summarize the proposed and actual pressure data for 2012 Key Well Program. Table 6 summaries the 2012 Endicott key well pressure monitoring program proposal consisting of fifteen wells. 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 3 provides graphs of the injection rates, injectivity index, and wellhead pressure versus time for each injector. Appendix 4 lists all current and former key wells with the reservoir pressures obtained since field start-up. Appendix 5 plots list the key well reservoir pressures along with all other reservoir pressure surveys by subzone and area. Appendix 6 concludes the wells in the participating area that were shut in for all of 2012. 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 28 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, 3 in 2008 (well 3-35/L-36 was traced with four different tracers), 1 in 2009 (well 3-35/L-36) and 1 at the end of 2011 continuing into 2012 (Well 3-01/N-29). 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 from previous tracer tests, except for those immediately offset to injector 3-01/N- 29. Figure 2 is an Endicott well plot showing the tracer data for the LoSal™ Pilot. It includes the dates and types of tracers injected and the producing locations where the tracer has appeared. For information on the waterflood tracer programs completed prior to 2012, reference the 2009 Endicott Surveillance Report. 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 converting producers to injectors, profile modification of existing injectors, and target injection rate control. Offtake will continue to be optimized by evaluating remedial work on existing producers and production rate control. 5Figure 1. 2012 Well Status – Endicott Field, Alaska BP Exploration, Alaska Inc 6 TABLE 1 ENDICOTT OIL POOL SUMMARY OF PERTINENT DATA (as of December 31, 2012) 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) 461.7 NGL's (MMSTB) 25.3 Gas (BSCF) 2840.8 Water (MMB) 1271.2 Endicott Injection since Field Start-Up: Gas (BSCF) 2548.1 Miscible Injectant (BSCF) 35.2 Water (MMB) 1657.0* Wells in Operation during the month of December 2011: Oil Producers 48 Gas Injectors 4 Water Injectors 20 Water-Alternating-Gas Injectors 0 Waste Water Disposal 0 ** Total 72 * Water injection volumes do not include Cretaceous injection ** Cretaceous injector not shown in Figure 1 7 TABLE 2 ENDICOTT OIL POOL RESERVOIR BALANCE FOR WATERFLOOD SANDS Through 12/31/2012 (Values in MMRB) MPI & NIAK REGION by SUBZONE Produced Volume 3C 3B 3A 2B 2A K1 MPI TOTAL Oil 29.62 44.01 31.82 85.89 166.82 5.14 363.31 Solution Gas 11.03 16.38 11.85 31.97 62.10 1.91 135.24 Free Gas 134.19 133.35 139.22 288.33 525.20 11.33 1,231.61 Water 33.69 85.70 86.91 242.47 206.49 2.67 657.93 Total 197.50 263.06 257.95 616.69 898.50 19.14 2,252.84 Injected Volumes Gas 246.66 130.87 31.35 563.02 644.24 0.00 1,616.14 MI 0.41 1.49 1.68 0.00 0.00 0.00 3.58 Water 48.72 120.44 119.88 219.86 282.53 0.00 791.42 Total 295.78 252.81 152.90 782.87 926.77 0.00 2,411.14 Net Voidage Volumes Total 98.28 -10.25 -105.05 166.18 28.26 -19.14 158.29 SDI REGION by SUBZONE Produced Volume 3C 3B 3A 2B 2A K1 SDI TOTAL Oil 62.82 19.71 34.00 94.07 48.93 0.59 260.11 Solution Gas 23.38 7.34 12.66 35.02 18.21 0.22 96.83 Free Gas 224.07 30.31 7.94 41.38 169.34 0.45 473.48 Water 155.82 48.63 97.96 198.08 150.93 0.10 651.53 Total 442.70 98.65 139.90 333.54 369.20 1.14 1,385.12 Injected Volumes Gas 94.68 6.25 0.00 0.00 0.00 0.00 100.93 MI 15.00 5.49 0.00 0.00 0.00 0.00 20.49 Water 148.74 116.92 96.27 403.94 143.79 0.00 909.65 Total 258.42 128.66 96.27 403.94 143.79 0.00 1,031.08 Net Voidage Volumes Total -184.28 30.02 -43.63 70.40 -225.41 -1.14 -354.04 FIELD TOTALS by SUBZONE 3C 3B 3A 2B 2A 1 FIELD TOTAL Produced Volume Oil 92.44 63.72 65.82 179.96 215.74 5.73 623 Solution Gas 34.41 23.72 24.50 66.99 80.31 2.13 232 Produced Gas 358.26 163.65 147.16 329.71 694.53 11.78 1,705 Water 189.51 134.33 184.87 440.55 357.43 2.77 1,309 Total 640.21 361.70 397.85 950.23 1,267.70 20.28 3,637.97 Injected Volumes Gas 341.34 137.13 31.35 563.02 644.24 0.00 1,717 MI 15.41 6.99 1.68 0.00 0.00 0.00 24 Water 197.46 237.36 216.14 623.80 426.32 0.00 1,701 Total 554.20 381.47 249.17 1,186.81 1,070.56 0.00 3,442 Net Voidage Volumes Total -86.00 19.77 -148.68 236.59 -197.14 -20.28 -195.75 NOTE: Water injection volumes do not include Cretaceous injection NOTE: Voidage is calculated as Injected Volumes minus Produced Volumes 8 Table 3 Endicott Oil Pool Injection Well Data Through 12/31/2012 MPI Reservoir Area Cumulative Cumulative Cumulative Water Gas MI Start-Up Well Name MMBW BSCFG BSCFG Date 1-05/O-20 0.0 585.6 0.0 May-88 1-23/O-15 96.6 0.0 0.0 Mar-95 1-37/P-24 33.5 0.0 0.0 Dec-87 1-41/O-23 83.9 0.0 0.0 Dec-95 2-06/J-22 0.0 712.3 0.0 Oct-87 2-12/Q-16 0.0 361.0 0.0 Apr-93 2-16/M-16 107.6 0.0 0.0 Mar-89 2-22/L-14 75.1 0.0 4.7 May-89 2-24/M-12 4.8 0.0 0.0 Mar-95 2-34/P-14 99.3 0.0 0.0 Nov-89 2-44/R-12 * 20.8 0.0 0.0 Mar-89 2-54/Q-12 114.9 0.0 0.0 Jan-92 2-64/U-10 18.4 0.0 0.0 Dec-90 2-70/U-15 22.4 0.0 0.6 Jul-89 5-01/SD-07 0.0 706.2 0.0 Oct-87 5-02/SD-10 81.8 0.0 0.0 Jan-88 9 Table 3 Endicott Oil Pool Injection Well Data Through 12/31/2012 SDI Reservoir Area Cumulative Cumulative Cumulative Water Gas MI Start- Up Well Name MMBW BSCFG BSCFG Date 1-15/P-25 0.0 147.7 0.0 Jun-93 1-43/P-26 185.1 0.0 0.0 Apr-89 1-51/V-20 18.8 0.0 0.0 Apr-93 1-67/T-20 33.1 0.0 3.7 May-99 1-69/V-19 26.5 0.0 0.0 Dec-90 3-01/N-29 +++ 21.0 0.0 0.0 Mar-09 3-07/N-28 ** 47.6 0.0 0.0 Apr-89 3-17F/K- 30 ++ 9.3 0.0 0.0 Feb-09 3-35/L-36 *** 14.2 0.0 0.0 Nov-07 3-37/L-35 - 45.0 0.0 0.0 Aug-98 3-41/K-39 167.8 0.0 0.0 Apr-89 3-43/P-36 // 0.0 May-94 3-45/M-39 83.9 0.0 0.0 Sep-88 3-47/Q-35 29.0 0.0 12.5 Mar-95 3-49A/M-40 42.1 0.0 0.7 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 + 22.9 0.0 0.0 Dec-90 Total 1651.6 2512.9 35.2 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 ++ Converted to injection in 2/09 +++ Converted to injection in 3/09 / Sidetracked and converted to producer in 5/09 // Converted to injectin in 7/10 10Figure 2. Tracer Program – Endicott Field, Alaska BP Exploration, Alaska Inc 11 Endicott Oil Field 2011 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 fifteen Key Well reservoir pressures and one Non-Key reservoir pressure for 2012. Due to no off-take occurring in Niakuk 2A there was no pressure monitoring proposed for Niakuk 2A. 2012 Pressure Monitoring Program Table 4 summarizes the wells included in the proposed 2012 Key Well Program. Table 5 summarizes the key well pressure data gathered in 2012. 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 12 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. 2013 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 2013 Endicott key well pressure monitoring program proposal consisting of fifteen wells. As in past years, the amount of static pressure data obtained annually will likely exceed the fifteen wells included in the proposed 2013 Key Well Pressure Monitoring Program. At the operator’s discretion, representative reservoir pressures gathered in other wells during 2013 may be substituted for the proposed key wells to minimize production impacts or for operational necessity. 13Figure 3. 2012 Pressure Data – Endicott Field, Alaska BP Exploration, Alaska Inc 14 2012 KEY WELL PRESSURE MONITORING PROGRAM PROPOSAL ENDICOTT FIELD TABLE 4 Well Area Subzone(s) Comments None Niakuk 2A No active producers or injectors in this zone 1-19/I-18 Niakuk 2B 2-18/L-16 Niakuk 3A, 3B Commingled pressure 2-26/N-14 Niakuk 3B, 3C Commingled pressure 3-25B/L-27 MPI 2A 1-61/Q-20 MPI 2B 2-36/O-14 MPI 3A 2-52/S-14 MPI 3B, 3C Commingled pressure 2-58/S-09 MPI 3C 3-39A/I-37 SDI 2A 3-15/K-33 SDI 2B 4-32/K-38 SDI 3A Lower 3A monitor point 3-27/M-33 SDI 2B, 3A, 3B Commingled pressure 4-28/N-37 SDI 3B, 3C Eastern area - commingled 4-18/S-30 SDI 3C Central area 2-40/S-22 SDI 3B, 3C Western area -commingled 15 2012 KEY WELL PRESSURE MONITORING PROGRAM ACTUALS ENDICOTT FIELD TABLE 5 Well Area Subzone(s) Pressures None Niakuk 2A 1-19/I-18 Niakuk 2B 4190 2-18/L-16 Niakuk 3A, 3B 3920 2-26/N-14 Niakuk 3B, 3C 1360 3-25B/L-27 MPI 2A 4151 1-61/Q-20 MPI 2B 4211 2-36/O-14 MPI 3A 4260 2-52/S-14 MPI 3B, 3C 4077 2-58/S-09 MPI 3C 3026 3-39A/I-37 SDI 2A 4077 3-15/K-33 SDI 2B 4275 4-32/K-38 SDI 3A 4316 3-27/M-33 SDI 2B, 3A, 3B 4257 4-28/N-37 SDI 3B, 3C 2942 4-18/S-30 SDI 3C 2491 2-40/S-22 SDI 3B, 3C 3969 DATUM: 10,000 TVDss 16 2013 KEY WELL PRESSURE MONITORING PROGRAM PROPOSAL ENDICOTT FIELD TABLE 6 Well Area Subzone(s) Comments None Niakuk 2A No active producers or injectors in this zone 1-19/I-18 Niakuk 2B 2-18/L-16 Niakuk 3A, 3B Commingled pressure 2-26/N-14 Niakuk 3B, 3C Commingled pressure 3-25B/L-27 MPI 2A 1-61/Q-20 MPI 2B 2-36/O-14 MPI 3A 2-52/S-14 MPI 3B, 3C Commingled pressure 2-58/S-09 MPI 3C 3-39A/I-37 SDI 2A 3-15/K-33 SDI 2B 4-32/K-38 SDI 3A Lower 3A monitor point 3-27/M-33 SDI 2B, 3A, 3B Commingled pressure 4-28/N-37 SDI 3B, 3C Eastern area - commingled 4-18/S-30 SDI 3C Central area 2-40/S-22 SDI 3B, 3C Western area -commingled 17 Endicott Oil Field 2012 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 2012 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). 18 2012 GOC Monitoring Program During 2012, four 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. The following are the wells from which the neutron logs were acquired during 2012: Well Location 1-61/Q20 MPI 4-28/N-37 SDI 2-36/O-14 MPI 1-21/K-25 MPI In addition to the cased hole neutron logs run in 2012, a total of 6 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 2012. Well Location Well Location 1-61/Q20 MPI 1-21/K-25 MPI 4-28/N-37 SDI 3-31/K-32 SDI 2-36/O-14 MPI 2-08/K-16 NIAK 2013 GOC Monitoring Program BPXA proposes a 2013 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 Appendix 2 Cumulative Voidage versus Time Plots Appendix 3 Injection Well Rate and Pressure versus Time Plots 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 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 2009 2/23/2009 4-32/K-38 4537 3/6/2009 4-18/S-30 3285 7/5/2009 1-19/I-18 4124 4124 7/6/2009 1-61/Q-20 4263 7/6/2009 2-18/L-16 3627 7/16/2009 2-48/0-13 4562 7/16/2009 2-52/S-14 4457 7/18/2009 2-58/S-09 2920 7/18/2009 3-25B/L-27 4127 7/18/2009 3-27/M-33 4305 4305 7/19/2009 4-28/N-37 3198 3198 8/5/2009 3-39A/I-37 4117 8/6/2009 3-29/J-32 4191 4191 4191 8/19/2009 2-40/S-22 4244 4244 8/24/2009 2-26/N-14 2657 2657 12/21/2009 2-16/M-16 4296 4296 2010 4/19/2010 1-61/Q-20 4151 4/20/2010 4-18/S-30 3349 4/20/2010 2-40/S-22 4058 4058 4/24/2010 1-19/I-18 4162 4/24/2010 2-48/0-13 4477 4/24/2010 2-52/S-14 4380 4380 4/25/2010 2-58/S-09 2208 4/25/2010 2-26/N-14 1671 1671 6/21/2010 3-39A/I-37 3912 8/2/2010 3-25B/L-27 4078 8/3/2010 2-18/L-16 3874 8/10/2010 4-32/K-38 4455 8/10/2010 4-28/N-37 3511 3511 9/29/2010 3-27/M-33 4122 4122 9/30/2010 3-15/K-33 4102 2011 3/23/2011 4-32/K-38 4264 5/14/2011 2-58/S-09 3286 6/7/2011 3-25B/L-27 4124 6/9/2011 3-39A/I-37 4031 6/10/2011 4-18/S-30 3088 6/11/2011 4-28/N-37 3446 3446 6/12/2011 3-15/K-33 4192 6/15/2011 2-36/O-14 4435 6/18/2011 1-19/I-18 4129 6/19/2011 1-61/Q-20 4191 6/21/2011 2-18/L-16 3934 3934 6/22/2011 2-40/S-22 3744 3744 6/24/2011 3-27/M-33 4245 4245 4245 6/25/2011 2-52/S-14 4245 4245 6/26/2011 2-26/N-14 1653 1653 2012 6/14/2012 2-58/S-09 3026 6/17/2012 3-25B/L-27 4151 6/17/2012 2-18/L-16 3920 3920 6/18/2012 3-27/M-33 4257 4257 4257 6/18/2012 2-52/S-14 4077 6/19/2012 1-19/I-18 4190 6/22/2012 3-15/K-33 4275 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 6/25/2012 2-26/N-14 1360 1360 6/26/2012 3-39A/I-37 4077 6/26/2012 4-28/N-37 2942 2942 6/27/2012 4-18/S-30 2491 6/27/2012 2-36/O-14 4260 6/28/2012 1-61/Q-20 4212 6/29/2012 4-32/K-38 4316 6/29/2012 2-40/S-22 3967 Appendix 5 Reservoir Pressure vs. Time 5001000150020002500300035004000450050005500600087 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 DatumZone:1Pressure vs. TimeMPI Key WellsMPI Non-Key WellsSDI All WellsNFB WellsBP Exploration, Endicott 300035004000450050005500600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14Pressure at 10,000 ft TVD ss DatumRegion: MPI Zone:2APressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 300035004000450050005500600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14Pressure at 10,000 ft TVD ss DatumRegion: MPI Zone:2BPressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 300035004000450050005500600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14Pressure at 10,000 ft TVD ss DatumRegion: MPI Zone: 3APressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 300035004000450050005500600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14Region: MPI Zone: 3BPressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 10002000300040005000600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14Region: MPI Zone: 3CPressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 30003500400045005000550087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14Pressure at 10,000 ft TVD ss DatumRegion: SDI Zone: 2APressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 3500400045005000550087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14Pressure at 10,000 ft TVD ss DatumRegion: SDI Zone: 2BPressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 300035004000450050005500600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14Pressure at 10,000 ft TVD ss DatumRegion: SDI Zone: 3APressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 10002000300040005000600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14Pressure at 10,000 ft TVD ss DatumRegion: SDI Zone: 3BPressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 20002500300035004000450050005500600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15Pressure at 10,000 ft TVD ss DatumRegion: SDI Zone: 3CPressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 3500400045005000550087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12Pressure at 10,000 ft TVD ss DatumRegion: NFB Zone: 2APressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 3500400045005000550087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13Pressure at 10,000 ft TVD ss DatumRegion: NFB Zone: 2BPressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 100015002000250030003500400045005000550087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14Pressure at 10,000 ft TVD ss DatumRegion: NFB Zone: 3APressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 10002000300040005000600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14Pressure at 10,000 ft TVD ss DatumRegion: NFB Zone: 3BPressure vs. TimeKey WellsNon-Key WellsBP Exploration, Endicott 10002000300040005000600087 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14Pressure at 10,000 ft TVD ss DatumRegion: NFB Zone: 3CPressure vs. TimeKey WellsNon-Key WellsBP 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 1-01/J-19 Mar-08 D - Mechanical Problem TXIA communication. Well is secured with TTP. 3. Long term shut-in well/no immediate plans Needs RWO in order to restore integrity 1-11/SN-04 Feb-11 D - Mechanical Problem IAXOA communication 3. Long term shut-in well/no immediate plans Needs RWO in order to restore integrity 1-15/P-25 Dec-13 D - Mechanical Problem TXIA communication 3. Long term shut-in well/no immediate plans Needs RWO in order to restore integrity 1-29/M-25 Aug-11 A-High GOR D- Mechanical Problem Patch failed leading to high gas production 1. Evaluation remedial options and/or sidetrack opportunities 1-37/P-24 Jan-07 D - Mechanical Problem TXIA communication. Tubing was chemical cut in prep for RWO - cancelled. Well is secured with CIBP. 3. Long term shut-in well/no immediate plans Needs RWO in order to restore integrity 1-45/Q-26 Nov-05 D - Mechanical Problem TXIA communication. Secured with tubing tail plug 1. Evaluating remedial option and/or sidetrack opportunities Needs RWO in order to restore integrity 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. 2-02/P-18 Jul-09 E - Cretaceous Disposal Not Needed Operable.6. Use when needed for disposal 2-14/O-16 Dec-12 D - Mechanical Problem TxIAxOA 3. Long term shut-in well/no immediate plans Needs RWO in order to restore integrity 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 2-38/SN-01 Mar-04 B - High WC D - Mechanical Problem TXIA communication. Secured with tubing tail plug 3. Long term shut-in well/no immediate plans Needs RWO in order to restore integrity 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 Needs RWO in order to restore integrity 2-56A/EI01 Dec-09 B - High WC Operable. 3. Long term shut-in well/no immediate plans 2-58/S-09 Apr-10 D - Mechanical Problem TxIA 3. Long term shut-in well/no immediate plans 2-60/U-13 Aug-09 D - Mechanical Problem Surface casing leak. Secured with tubing tail plug. 1. Evaluating remedial option and/or sidetrack opportunities Needs RWO in order to restore integrity 2-68/S-17 Aug-07 D - Mechanical Problem TxIA communication. Secured with tubing tail plug. 1. Evaluating remedial option and/or sidetrack opportunities 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 3-03/J-33 Mar-12 A- High GOR, no known mechanical Operable. 6. Other No candidates determined for water injection to lower GOR. 3-05/O-29 Apr-07 D - Mechanical Problem TXIA communication. Well is secured with TTP. 1. Evaluating remedial options 3-11/M-30 Mar-05 D - Mechanical Problem PC Leak. Secured with cement & cement retainer. 3. Long term shut in/ no immediate plans Needs RWO in order to restore integrity 3-19/R-28 Jun-03 B - High WC D - Mechanical Problem TXIA communication. Secured with tubing tail plug 2. Remedial well work planned Possible rig work over in 2013 3-23/N-32 Nov-05 B - High WC D - Mechanical Problem TXIAXOA communication. Secured with tubing tail plug. 3. Long term shut-in well/no immediate plans 3-43/P-36 Aug-10 D-Mechanical Problem Surface casing leak. Secured with tubing tail plug. 2. Remedial well work planned Possible rig work over in 2013 4-02/Q-28 Sep-11 A- High GOR, no known mechanical Operable. 1. Evaluating remedial option and/or sidetrack opportunities 4-08/P-27 Nov-05 D - Mechanical Problem E - Replaced by 3-01 Inj TXIA communication. Secured with tubing tail plug 3. Long term shut-in well/no immediate plans Needs RWO in order to restore integrity 4-26/O-34 Jan-07 B - High WC D - Mechanical Problem TXIA communication. Well is secured with TTP. 3. Long term shut-in well/no immediate plans Needs RWO in order to restore integrity 4-32/K-38 Nov-05 E - Reservoir Management Operable.6. POP oncewell house is replaced. 4-40/P-43 Dec-05 C - Low Injection Rate D - 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 - Low Injection Rate D - Mechanical Problem TXIA communication. 3. Long term shut-in well/no immediate plans Needs RWO in order to restore integrity ENDICOTT/SAG DELTA NORTH/EIDER Shut-In Wells for all of 2012