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HomeMy WebLinkAboutOil-BeaverCreek-BeaverCreekAlaska Oil and Gas Conservation Commisssion - Pool Statistics, Unit and Pool Home Orders Staff Calendar Contact Us AOGCC Pool Statistics Beaver Creek, Beaver Creek Oil Pool Alaska Oil and Gas Conservation Commission > Annual Reports > Pool Statistics: Updated 03 September 2004 Page: 1 > 2 > 3 Operator: Marathon Oil Company Discovery Well: Marathon Oil Company Beaver Creek Unit No. 4 Permit #172-013 API No. 50-133-20239-00-00 Sec. 33, T07N, R10W, SM Depth: 15,940’ MD / 15,715' TVD December 17, 1972 Status: Producing Location: Central Arctic Slope Area Location Map DNR Unit Map Orders: Complete List Summary: The Beaver Creek Oil Pool was discovered in 1972 by the Beaver Creek Unit No. 4 well and developed with four wells drilled between 1972 to 1981. Regular production began in January 1973, and peaked at 2,188 barrels of oil per day during July 1973. At the end of 2004, the production from the pool averaged 186 barrels of oil and 23 barrels of water per day. Production from the pool has been dominated by Beaver Creek Unit No. 4, which has produced a total of 4,455,577 barrels of oil. The other major producer is Beaver Creek Unit No. 5RD, which has produced 1,206,737 barrels of oil. Beaver Creek Unit No. 5 and No. 6 have been minor producers. Geology: The Beaver Creek oil pool is the accumulation of oil that is common to, and correlates with, the accumulation present in the Beaver Creek Unit No. 4 well between the measured depths of 14,518 feet and 15,874 feet. This oil pool comprises reservoir sandstone and conglomeratic sandstone assigned to the Tyonek G-Zone and the Hemlock Formation. These sediments are fluvial in origin, and were deposited as valley-fill and or within floodplains. The Beaver Creek Oil Pool accumulation lies at the crest of a nearly circular anticline, which is slightly elongate in a north- south direction. The accumulation is bound by to the east by a north-south trending fault, and by dip closure to the north, west, and south. The crest of the anticline lies approximately 14,500 feet below sea level. Pressure transient analysis of DST data indicates the Hemlock has an effective permeability of 0.5 md, and the G-Zone has an effective permeability of about 75 md. Oil gravity in the G-Zone is approximately 34 to 35 degrees API, and viscosity is approximately 0.7 centipoise. Strat Column Type Log Production: Prod Chart Prod Report Prod Data Oil (bbls) NGL (bbls) Gas (mcf) Water (bbls) Cumulative 5,725,937 0 2,041,869 65,202 2001 Total 84,562 0 21,450 2,681 2002 Total 79,481 0 23,082 5,720 2003 Total 76,134 0 23,040 4,809 2004 Total 68,062 0 22,067 8,430 2003 Daily Rate 209 0 63 13 2004 Daily Rate 186 0 60 23 Change (%)-11%0 -5%77% Continued: 1 > 2 > 3 Home Orders Staff Calendar Contact Us Webmaster http://www.state.ak.us/local/akpages/ADMIN/ogc/ann...004/Oil_Pools/Beaver%20Creek%20-%20Oil/1_Oil_1.htm [3/20/2008 4:28:52 PM] Alaska Oil and Gas Conservation Commisssion - Pool Statistics, Unit and Pool Home Orders Staff Calendar Contact Us AOGCC Pool Statistics Beaver Creek, Beaver Creek Oil Pool Alaska Oil and Gas Conservation Commission > Annual Reports > Pool Statistics - 2004: Updated 11 July 2005 Page: 1 > 2 > 3 EOR Injection:Disposal Injection in Field: Chart Report Data Gas (Mcf)Water Disposed Fluids Cumulative 551,0564 0 Cumulative 529,366 2001 Total 0 0 2001 Total 21,084 2002 Total 0 0 2002 Total 27,200 2003 Total 0 0 2003 Total 39,405 2004 Total 0 0 2004 Total 78,818 2003 Rate (per day) 0 0 2003 Rate (per day) 108 2004 Rate (per day) 0 0 2004 Rate (per day) 216 Change (%) 0 0 Change (%) 100% Field Development Information: Wells In Field Type Well Status 2004 2003 2002 2001 2000 Producer Oil Producer 2 2 2 2 2 Injector Water Injector 0 0 0 0 0 Gas Injector 0 0 0 0 0 WAG Injector 0 0 0 0 0 Water Supply 0 0 0 0 0 Disposal 1 1 2 2 2 Non-Operating Suspended 0 0 0 0 0 Abandoned 4 4 3 3 3 Total 7 7 7 7 7 Active Completions in Pool (Month of December): Type Well Status 2004 2003 2002 2001 2000 Oil Producer Flowing 0 0 0 0 1 Gas Lift 2 2 2 2 0 Shut-In 0 0 0 0 0 Service Well Water Injector 0 0 0 0 0 Gas Injector 0 0 0 0 0 WAG Injector 0 0 0 0 0 Water Supply 0 0 0 0 0 Shut-In 0 0 0 0 0 Disposal Undef.Disposal Injector 0 1 1 1 1 Shut-In 1 0 1 1 1 Total 3 3 4 4 3 Continued: 1 > 2 > 3 Home Orders Staff Calendar Contact Us Webmaster http://www.state.ak.us/local/akpages/ADMIN/ogc/ann...004/Oil_Pools/Beaver%20Creek%20-%20Oil/1_Oil_2.htm [3/20/2008 4:29:50 PM] Alaska Oil and Gas Conservation Commisssion - Pool Statistics, Unit and Pool Home Orders Staff Calendar Contact Us AOGCC Pool Statistics Beaver Creek, Beaver Creek Oil Pool Alaska Oil and Gas Conservation Commission > Annual Reports > Pool Statistics - 2004: Updated 11 July 2005 Page: 1 > 2 > 3 Permitted Wells in Field: Type Well Status 2004 2003 2002 2001 2000 Development New 0 0 0 0 0 Sidetrack 0 0 0 0 0 Multilateral 0 0 0 0 0 Service New 0 0 0 0 0 Sidetrack 0 0 0 0 0 Multilateral 0 0 0 0 0 Exploration New 0 0 0 0 0 Sidetrack 0 0 0 0 0 Total 0 0 0 0 0 Reservoir Properties: Description 2004 2003 2002 2001 2000 Reference Datum - ft. below sea level 14800 14800 14800 14800 14800 Temperature - ° F 215 215 215 215 215 Porosity - % - - - - - Permeability - md - - - - - Swi - % - - - - - Oil Viscosity @ Orig. Press. cp - - - - - Oil Viscosity @ Sat. Press. cp ----- Orig. Press. - psi 7552 7552 7552 7552 7552 Disposal Undef.-- --- Bubble Point - psi ----- Current Reservoir Press. - psi 1236 1236 1236 1236 1236 Oil Gravity - ° API 35 35 35 35 35 Gas Specific Gravity (Air = 1.0)----- Gross Pay - ft.----- Net Pay - ft.100 100 100 100 100 Orig. FVF - RB/STB ----- Bubble Point FVF - RB/STB ----- Orig. GOR - SCF/STB 380 380 380 380 380 GOR (current yr.) - SCF/STB 324 302 290 254 280 References / Summary Continued: 1 > 2 > 3 Home Orders Staff Calendar Contact Us Webmaster http://www.state.ak.us/local/akpages/ADMIN/ogc/ann...004/Oil_Pools/Beaver%20Creek%20-%20Oil/1_Oil_3.htm [3/20/2008 4:30:01 PM] Colville River UnitAlpine Oil PoolReservoir PropertiesProperty2003 2002 2001 2000 1999Reference Datum - feet below sea level 7000 7000 7000 7000 7000Temperature - ° F160 160 160 160 160Porosity - %19 19 19 19 19Permeability - md15 15 15 15 15Swi - %20 20 20 20 20Oil Viscosity @ Original Pressure cp0.46 0.46 0.46 0.46 0.46Oil Viscosity @ Saturation Pressure cp0.4 0.4 0.4 0.4 0.4Original Pressure - psia3215 3215 3215 3215 3215Bubble Point - psia2454 2454 2454 2454 2454Current Reservoir Pressure - psia2900 2900 2800 3215 3215Oil Gravity - ° API40 40 40 40 40Gas Specific Gravity (Air = 1.0)0.72 0.72 0.72 0.72 0.72Gross Pay - feet50 50 50 50 50Net Pay - feet48 48 48 48 48Original FVF - RB/STB1.44 1.44 1.44 1.469 1.469Bubble Point FVF - RB/STB1.461 1.461 1.461 1.54 1.54Original Gas/Oil Ratio - SCF/STB840 840 840 940 850Gas/Oil Ratio (avg. December) - SCF/STB 1263 1263 1015 953 0 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells Producing BEAVER CREEK, BEAVER CREEK OIL Pool Jan 1958 Dec 2004 Dec 1972 1601 480 522 1 1601 480 52Year Total Jan 1973 18739 6026 10313 1 Feb 1973 56699 22309 6525 1 Mar 1973 2520 707 11 1 Jun 1973 7959 1923 216 1 Jul 1973 67843 18578 8228 1 Aug 1973 65991 26102 6231 1 Sep 1973 57620 21261 3230 1 Oct 1973 55209 24022 16731 1 Nov 1973 36730 16558 3725 1 Dec 1973 46971 15455 9431 1 416281 152941 664Year Total Jan 1974 31756 11335 1524 1 Feb 1974 38172 10631 2928 1 Mar 1974 39534 12358 2831 1 Apr 1974 36274 11791 4330 1 May 1974 35010 15876 3531 1 Jun 1974 27260 10162 2726 1 Jul 1974 30816 11578 831 1 Aug 1974 27081 10367 1331 1 Sep 1974 29134 10391 2230 1 Oct 1974 29455 10806 1531 1 Nov 1974 25501 7823 5130 1 Dec 1974 24757 6701 4831 1 374750 129819 334Year Total Jan 1975 23947 6255 4831 1 Feb 1975 20617 8723 40238 2 Mar 1975 33724 11936 121760 2 Apr 1975 30814 12768 132360 2 May 1975 29588 11123 172461 2 Jun 1975 30454 9634 123157 2 Jul 1975 36435 8468 172462 2 Aug 1975 32292 7079 100060 2 Sep 1975 22520 8424 9030 1 Oct 1975 23266 7894 15131 1 Nov 1975 18505 5265 13330 1 Dec 1975 20111 6271 10531 1 322273 103840 9148Year Total 3/11/2005 Page 1 of 11 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells Producing BEAVER CREEK, BEAVER CREEK OIL Pool Jan 1958 Dec 2004 Jan 1976 19777 6076 9631 1 Feb 1976 19065 5098 5729 1 Mar 1976 22877 8240 13655 2 Apr 1976 27395 7289 11260 2 May 1976 29208 8074 12062 2 Jun 1976 27611 8129 10860 2 Jul 1976 28431 7615 8662 2 Aug 1976 25228 8716 9461 2 Sep 1976 26534 7749 10760 2 Oct 1976 26884 9450 11961 2 Nov 1976 21551 8047 7042 2 Dec 1976 27231 10151 8862 2 301792 94634 1193Year Total Jan 1977 27926 9793 10062 2 Feb 1977 24362 7697 9556 2 Mar 1977 25503 8284 11862 2 Apr 1977 22348 7831 9960 2 May 1977 23641 5228 10462 2 Jun 1977 19274 5203 10255 2 Jul 1977 23996 8151 12658 2 Aug 1977 23026 7585 11162 2 Sep 1977 21756 8916 8760 2 Oct 1977 22651 6752 9562 2 Nov 1977 20542 7026 8960 2 Dec 1977 20498 7921 8562 2 275523 90387 1211Year Total Jan 1978 18939 8171 7562 2 Feb 1978 17292 7051 6956 2 Mar 1978 20787 7186 8362 2 Apr 1978 19833 7009 6460 2 May 1978 21190 7476 7262 2 Jun 1978 20569 7388 7960 2 Jul 1978 20551 7463 8262 2 Aug 1978 20158 7203 8162 2 Sep 1978 15238 7930 6147 2 Oct 1978 16690 4526 6754 2 Nov 1978 16254 11283 6558 2 Dec 1978 15315 9466 11562 2 222816 92152 913Year Total 3/11/2005 Page 2 of 11 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells Producing BEAVER CREEK, BEAVER CREEK OIL Pool Jan 1958 Dec 2004 Jan 1979 16276 8771 3362 2 Feb 1979 18393 7860 7755 2 Mar 1979 19246 8300 8262 2 Apr 1979 17941 8384 7657 2 May 1979 18510 7918 7862 2 Jun 1979 17993 8369 7660 2 Jul 1979 17955 7662 7662 2 Aug 1979 17505 7481 10362 2 Sep 1979 16175 6855 7860 2 Oct 1979 17133 7228 8262 2 Nov 1979 16977 7434 8160 2 Dec 1979 16736 7240 5462 2 210840 93502 896Year Total Jan 1980 18545 8554 8862 2 Feb 1980 17732 7551 8458 2 Mar 1980 19053 8128 9162 2 Apr 1980 18462 7855 7960 2 May 1980 19131 8140 9162 2 Jun 1980 18444 7627 8760 2 Jul 1980 18070 7693 8662 2 Aug 1980 18194 7567 7062 2 Sep 1980 16780 7126 8460 2 Oct 1980 17272 7155 2962 2 Nov 1980 16091 5947 3960 2 Dec 1980 16548 7413 4362 2 214322 90756 871Year Total Jan 1981 16219 7266 12162 2 Feb 1981 13614 6099 1456 2 Mar 1981 14616 6548 1562 2 Apr 1981 13987 6266 1460 2 May 1981 15114 6771 2160 2 Jun 1981 12757 5715 2854 2 Jul 1981 14800 6631 2062 2 Aug 1981 14330 6420 2362 2 Sep 1981 14644 6561 1460 2 Oct 1981 16607 7439 12862 2 Nov 1981 16543 7411 3360 2 Dec 1981 16454 7371 22362 2 179685 80498 654Year Total 3/11/2005 Page 3 of 11 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells Producing BEAVER CREEK, BEAVER CREEK OIL Pool Jan 1958 Dec 2004 Jan 1982 16484 7385 3862 2 Feb 1982 15284 6847 3656 2 Mar 1982 15732 7048 4557 2 Apr 1982 16219 7266 1660 2 May 1982 13150 5891 1336 2 Jun 1982 15743 7180 14160 3 Jul 1982 14901 6676 2360 2 Aug 1982 16097 7211 2460 2 Sep 1982 14675 6574 8260 2 Oct 1982 14707 6589 17162 2 Nov 1982 14437 6468 4460 2 Dec 1982 15049 6742 3062 2 182478 81877 663Year Total Jan 1983 14781 6622 2362 2 Feb 1983 13827 6195 2556 2 Mar 1983 14896 6673 2662 2 Apr 1983 14920 6684 1060 2 May 1983 14787 6625 2962 2 Jun 1983 13997 5672 2460 2 Jul 1983 15183 9065 762 2 Aug 1983 14866 5953 2062 2 Sep 1983 14305 6715 4360 2 Oct 1983 13436 7675 2062 2 Nov 1983 12783 11572 1860 2 Dec 1983 12509 12883 2462 2 170290 92334 269Year Total Jan 1984 12193 11885 4462 2 Feb 1984 11458 9549 3558 2 Mar 1984 13474 11865 5462 2 Apr 1984 13323 6070 1260 2 May 1984 13885 5047 2960 2 Jun 1984 14317 6912 1960 2 Jul 1984 14769 5953 3362 2 Aug 1984 14239 8093 5862 2 Sep 1984 13029 6064 4960 2 Oct 1984 13355 7642 5162 2 Nov 1984 12348 9940 3660 2 Dec 1984 12678 12002 1662 2 159068 101022 436Year Total 3/11/2005 Page 4 of 11 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells Producing BEAVER CREEK, BEAVER CREEK OIL Pool Jan 1958 Dec 2004 Jan 1985 12216 10359 2962 2 Feb 1985 11836 10519 1856 2 Mar 1985 12703 7181 2562 2 Apr 1985 12158 8382 2060 2 May 1985 13432 7835 2562 2 Jun 1985 13295 7999 1260 2 Jul 1985 13738 8726 2562 2 Aug 1985 13383 6502 1462 2 Sep 1985 13006 8709 5660 2 Oct 1985 11641 6899 7057 2 Nov 1985 8998 5345 1251 2 Dec 1985 10067 5334 2060 2 146473 93790 326Year Total Jan 1986 11019 6322 762 2 Feb 1986 10148 5967 2656 2 Mar 1986 11056 9770 1562 2 Apr 1986 12269 9789 2060 2 May 1986 13676 7969 2262 2 Jun 1986 13165 5497 1860 2 Jul 1986 12298 4739 3954 2 Aug 1986 14817 4092 1962 2 Sep 1986 14296 5962 4260 2 Oct 1986 15463 6447 1762 2 Nov 1986 14547 6152 3860 2 Dec 1986 14748 5604 1662 2 157502 78310 279Year Total Jan 1987 11927 4464 2458 2 Feb 1987 11194 4254 2354 2 Mar 1987 12833 3529 2760 2 Apr 1987 12573 3457 1860 2 May 1987 11573 3182 1062 2 Jun 1987 12304 3384 1960 2 Jul 1987 12833 3529 1462 2 Aug 1987 7717 2122 2551 2 Sep 1987 22127 6296 11460 2 Oct 1987 23354 6097 8457 2 Nov 1987 25990 7147 15660 2 Dec 1987 20659 5682 57053 2 185084 53143 1084Year Total 3/11/2005 Page 5 of 11 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells Producing BEAVER CREEK, BEAVER CREEK OIL Pool Jan 1958 Dec 2004 Jan 1988 14609 4018 5561 2 Feb 1988 13204 3631 4058 2 Mar 1988 14090 3875 147360 2 Apr 1988 14579 4009 154260 2 May 1988 15149 4166 151062 2 Jun 1988 14971 4117 116060 2 Jul 1988 14679 4037 161162 2 Aug 1988 4025 1107 4332 2 Sep 1988 3024 832 2022 1 Oct 1988 7068 1944 135743 2 Nov 1988 7900 2190 25948 2 Dec 1988 17290 4755 22859 2 140588 38681 9298Year Total Jan 1989 13454 3700 9556 2 Feb 1989 9019 2480 9848 2 Mar 1989 20733 5702 7260 2 Apr 1989 22926 6305 13257 2 May 1989 26009 7152 6059 2 Jun 1989 22849 6693 8252 2 Jul 1989 21553 6293 5760 2 Aug 1989 20787 6034 10060 2 Sep 1989 14923 4407 9259 2 Oct 1989 17880 4917 6857 2 Nov 1989 18867 5188 6260 2 Dec 1989 18162 4994 8659 2 227162 63865 1004Year Total Jan 1990 15990 4397 10962 2 Feb 1990 12371 3402 3154 2 Mar 1990 18438 5070 7458 2 Apr 1990 18381 5055 5059 2 May 1990 18830 5178 7859 2 Jun 1990 20184 5551 3160 2 Jul 1990 19940 5483 5860 2 Aug 1990 19691 5415 4962 2 Sep 1990 18466 5078 1458 2 Oct 1990 17198 4729 2961 2 Nov 1990 16762 4610 1259 2 Dec 1990 15568 4281 2361 2 211819 58249 558Year Total 3/11/2005 Page 6 of 11 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells Producing BEAVER CREEK, BEAVER CREEK OIL Pool Jan 1958 Dec 2004 Jan 1991 15895 4371 1260 2 Feb 1991 14556 4003 3456 2 Mar 1991 13275 3651 3056 2 Apr 1991 17376 4784 2657 2 May 1991 18778 5163 5762 2 Jun 1991 17988 4944 3460 2 Jul 1991 17491 4811 4061 2 Aug 1991 13792 3793 1837 2 Sep 1991 12503 3444 205640 2 Oct 1991 15051 4142 10555 2 Nov 1991 10655 2927 2139 2 Dec 1991 11680 3212 545 2 179040 49245 2438Year Total Jan 1992 15412 4236 057 2 Feb 1992 14829 4077 058 2 Mar 1992 16027 4407 062 2 Apr 1992 14664 4036 059 2 May 1992 14430 3967 5462 2 Jun 1992 14202 3907 6260 2 Jul 1992 14545 3996 5662 2 Aug 1992 13722 3774 10262 2 Sep 1992 14489 3979 7460 2 Oct 1992 14766 4060 48461 2 Nov 1992 13631 3748 8660 2 Dec 1992 14178 3902 361 2 174895 48089 921Year Total Jan 1993 13999 3853 462 2 Feb 1993 12428 3424 056 2 Mar 1993 13364 3671 062 2 Apr 1993 12769 3511 060 2 May 1993 10761 2960 049 2 Jun 1993 11851 3261 042 2 Jul 1993 12905 3550 055 2 Aug 1993 12575 3461 044 2 Sep 1993 12922 3554 060 2 Oct 1993 13276 3650 062 2 Nov 1993 12887 3542 058 2 Dec 1993 13205 3631 062 2 152942 42068 4Year Total 3/11/2005 Page 7 of 11 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells Producing BEAVER CREEK, BEAVER CREEK OIL Pool Jan 1958 Dec 2004 Jan 1994 12924 3559 062 2 Feb 1994 11427 3147 056 2 Mar 1994 12420 3417 061 2 Apr 1994 12055 3317 059 2 May 1994 12292 3376 062 2 Jun 1994 11665 3211 060 2 Jul 1994 11832 3257 058 2 Aug 1994 11768 3235 062 2 Sep 1994 10907 2999 060 2 Oct 1994 9686 2667 058 2 Nov 1994 10930 3006 058 2 Dec 1994 11986 3299 062 2 139892 38490 0Year Total Jan 1995 11925 3198 062 2 Feb 1995 10722 2959 2356 2 Mar 1995 11711 3267 2862 2 Apr 1995 10979 3158 13060 2 May 1995 11430 3143 11962 2 Jun 1995 11066 3096 16960 2 Jul 1995 11383 2719 16662 2 Aug 1995 11384 3216 13862 2 Sep 1995 10741 2448 20960 2 Oct 1995 10654 2915 36462 2 Nov 1995 9895 2562 27252 2 Dec 1995 10299 2740 38562 2 132189 35421 2003Year Total Jan 1996 10551 2745 46562 2 Feb 1996 10293 2809 11358 2 Mar 1996 10800 2972 4162 2 Apr 1996 10520 2848 260 2 May 1996 10635 2954 962 2 Jun 1996 10307 2782 1460 2 Jul 1996 10598 2745 11262 2 Aug 1996 10507 2883 4862 2 Sep 1996 10104 2823 9560 2 Oct 1996 10409 2896 9762 2 Nov 1996 10003 2752 8360 2 Dec 1996 10160 2802 8962 2 124887 34011 1168Year Total 3/11/2005 Page 8 of 11 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells Producing BEAVER CREEK, BEAVER CREEK OIL Pool Jan 1958 Dec 2004 Jan 1997 9825 2752 10262 2 Feb 1997 8882 2470 13455 2 Mar 1997 10433 2786 28062 2 Apr 1997 9817 2637 18760 2 May 1997 9317 2558 22162 2 Jun 1997 9451 2658 10960 2 Jul 1997 10178 2832 34162 2 Aug 1997 10379 2886 29162 2 Sep 1997 9905 2778 19460 2 Oct 1997 10664 2909 9362 2 Nov 1997 10029 2777 9060 2 Dec 1997 9839 2720 12362 2 118719 32763 2165Year Total Jan 1998 9182 2517 4262 2 Feb 1998 8838 2451 10256 2 Mar 1998 10044 2808 18762 2 Apr 1998 9609 2683 20560 2 May 1998 9963 2773 17962 2 Jun 1998 6344 2486 41560 2 Jul 1998 5859 1547 23862 2 Aug 1998 7404 2021 8862 2 Sep 1998 8244 2231 6460 2 Oct 1998 9077 2513 8262 2 Nov 1998 8924 2440 7760 2 Dec 1998 9065 2526 12362 2 102553 28996 1802Year Total Jan 1999 9349 2503 10962 2 Feb 1999 8608 2217 9056 2 Mar 1999 9173 2565 31962 2 Apr 1999 8557 2309 22960 2 May 1999 8651 2399 21562 2 Jun 1999 8214 2275 14160 2 Jul 1999 8784 2382 062 2 Aug 1999 7278 2041 059 2 Sep 1999 7435 2061 14060 2 Oct 1999 7383 1975 14762 2 Nov 1999 8085 2072 11460 2 Dec 1999 8421 2212 12262 2 99938 27011 1626Year Total 3/11/2005 Page 9 of 11 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells Producing BEAVER CREEK, BEAVER CREEK OIL Pool Jan 1958 Dec 2004 Jan 2000 8406 2241 20262 2 Feb 2000 7973 2201 1358 2 Mar 2000 8260 2243 9762 2 Apr 2000 7676 2103 9160 2 May 2000 7595 2096 7362 2 Jun 2000 6805 1873 7860 2 Jul 2000 7762 2157 9262 2 Aug 2000 8090 2158 17262 2 Sep 2000 7736 2152 23560 2 Oct 2000 6238 2706 19562 2 Nov 2000 8247 1848 19460 2 Dec 2000 7508 2078 14062 2 92296 25856 1582Year Total Jan 2001 7275 1541 9062 2 Feb 2001 6464 1786 17556 2 Mar 2001 7080 1967 18462 2 Apr 2001 6875 1834 19660 2 May 2001 7085 1641 25862 2 Jun 2001 6860 1865 25660 2 Jul 2001 6954 1916 31962 2 Aug 2001 6940 1867 3362 2 Sep 2001 6912 1844 22060 2 Oct 2001 7981 2150 28162 2 Nov 2001 7205 1301 10160 2 Dec 2001 6931 1738 56862 2 84562 21450 2681Year Total Jan 2002 6604 1989 36162 2 Feb 2002 5775 1884 33156 2 Mar 2002 5981 2067 4762 2 Apr 2002 6716 2151 7558 2 May 2002 6240 1879 29662 2 Jun 2002 6591 1808 18360 2 Jul 2002 7490 1757 46462 2 Aug 2002 7129 1834 78762 2 Sep 2002 7136 1708 67060 2 Oct 2002 7047 1931 82162 2 Nov 2002 6537 2016 67460 2 Dec 2002 6235 2058 101162 2 79481 23082 5720Year Total 3/11/2005 Page 10 of 11 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells Producing BEAVER CREEK, BEAVER CREEK OIL Pool Jan 1958 Dec 2004 Jan 2003 6443 2132 49057 2 Feb 2003 6415 1858 28956 2 Mar 2003 6855 2115 53462 2 Apr 2003 5626 1925 33860 2 May 2003 6525 1984 062 2 Jun 2003 6399 1718 060 2 Jul 2003 6515 2141 16556 2 Aug 2003 6601 1644 51862 2 Sep 2003 5900 1905 62160 2 Oct 2003 6178 1887 80262 2 Nov 2003 6101 1798 74860 2 Dec 2003 6576 1933 30462 2 76134 23040 4809Year Total Jan 2004 6454 1935 062 2 Feb 2004 5899 2739 058 2 Mar 2004 5960 2209 62362 2 Apr 2004 6351 2355 89160 2 May 2004 6319 1970 242662 2 Jun 2004 6125 1736 209460 2 Jul 2004 6334 1754 72562 2 Aug 2004 6349 1929 062 2 Sep 2004 6252 1748 060 2 Oct 2004 6277 1918 112062 2 Nov 2004 5742 1774 55160 2 68062 22067 8430Year Total 5,725,937 2,041,869 65,202Pool Total 3/11/2005 Page 11 of 11 State of Alaska, Oil and Gas Conservation CommissionProduction History for: CompClassOil (BBL) Gas (MCF) Water (BBL) Pad/PlatformBEAVER CREEK, BEAVER CREEK OIL PoolAPI Number Permit Well NameCurr ClassOrig ClassCurr StatusCompStatusComp DateOrig Status3/11/20055013320346000 1811500 BEAVER CK UNIT 6DEV 2-GAS DEV 1-GAS 9/5/1982 DEV 1-OIL15919875BEAVER_CREEK5013320262010 1750550 BEAVER CK UNIT 5RD DEV 1-OIL DEV 1-OIL 3/17/1976 DEV 1-OIL 1208707479011 8359BEAVER_CREEK5013320262000 1740180 BEAVER CK UNIT 5DEV P&A DEV 1-OIL 3/2/1975 DEV 1-OIL6346419480 8265BEAVER_CREEK5013320239000 1720130 BEAVER CK UNIT 4DEV 1-OIL DEV 1-OIL 1/14/1973 EXP 1-OIL 44577371545103 49593BEAVER_CREEK5,730,067 2,043,79266,292Pool Total Colville River UnitAlpine Oil PoolPermitted WellsYearTotalsNew Sidetrack Multilateral New Sidetrack Multilateral New Sidetrack199980 0 8 0 0 0016200050 013 1 0 0019200130 0 8 1 0 1114200210 10 800 0 019200312 00 501 0 018Totals 38 10 4221 1 186ServiceExploratoryDevelopment State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting BEAVER CREEK, UNDEFINED WDSP Pool Jun 1987 2567 010 1 Jul 1987 18924 029 1 Aug 1987 13078 029 1 Sep 1987 2452 026 1 Oct 1987 313 021 Year Total 37334 0 Mar 1988 9258 024 1 Apr 1988 12469 030 1 May 1988 10335 031 1 Jun 1988 11773 029 1 Jul 1988 5673 016 1 Sep 1988 77 011 Year Total 49585 0 Mar 1989 4875 023 1 Apr 1989 431 021 Oct 1989 6256 041 Nov 1989 373 031 Dec 1989 1084 051 Year Total 13019 0 Jan 1990 4448 028 1 Feb 1990 2187 027 1 Mar 1990 3211 030 1 Apr 1990 3225 026 1 May 1990 2241 016 1 Jun 1990 1628 014 1 Jul 1990 1984 013 1 Aug 1990 1264 013 1 Sep 1990 3456 023 1 Oct 1990 1730 017 1 Nov 1990 1964 026 1 Dec 1990 1634 013 1 Year Total 28972 0 Jan 1991 1640 014 1 Feb 1991 2245 020 1 Mar 1991 3280 031 1 Apr 1991 7618 030 1 May 1991 2957 028 1 Jun 1991 3468 030 1 Jul 1991 3066 030 1 Aug 1991 4451 031 1 Sep 1991 7606 029 1 Oct 1991 3010 029 1 Nov 1991 3348 027 1 Dec 1991 4769 030 1 Year Total 47458 0 4/5/2005 Page 1 of 6 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting BEAVER CREEK, UNDEFINED WDSP Pool Jan 1992 8150 029 1 Feb 1992 10431 029 1 Mar 1992 9883 031 1 Apr 1992 2864 030 1 May 1992 1780 014 1 Jun 1992 2885 015 1 Jul 1992 1758 014 1 Aug 1992 3449 025 1 Sep 1992 2742 023 1 Oct 1992 5152 027 1 Nov 1992 5581 030 1 Dec 1992 6150 031 1 Year Total 60825 0 Jan 1993 7243 031 1 Feb 1993 7127 028 1 Mar 1993 6424 026 1 Apr 1993 1632 012 1 May 1993 2109 017 1 Jun 1993 1530 011 1 Jul 1993 2425 018 1 Aug 1993 1665 015 1 Sep 1993 2265 016 1 Oct 1993 2216 018 1 Nov 1993 1393 013 1 Dec 1993 985 091 Year Total 37014 0 Jan 1994 2585 020 1 Feb 1994 3716 025 1 Mar 1994 2033 016 1 Apr 1994 1232 091 May 1994 1072 081 Jun 1994 1098 011 1 Jul 1994 1373 010 1 Aug 1994 1104 011 1 Sep 1994 676 051 Oct 1994 2023 016 1 Nov 1994 972 012 1 Dec 1994 1219 014 1 Year Total 19103 0 4/5/2005 Page 2 of 6 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting BEAVER CREEK, UNDEFINED WDSP Pool Jan 1995 1109 031 1 Feb 1995 839 011 1 Mar 1995 1000 081 Apr 1995 769 091 May 1995 1193 012 1 Jun 1995 1387 021 1 Jul 1995 1339 022 1 Aug 1995 1016 017 1 Sep 1995 856 016 1 Oct 1995 3838 031 1 Nov 1995 2325 021 1 Dec 1995 3689 031 1 Year Total 19360 0 Jan 1996 1816 018 1 Feb 1996 1908 029 1 Mar 1996 1016 012 1 Apr 1996 88 021 Jun 1996 68 011 Jul 1996 555 041 Aug 1996 187 091 Sep 1996 428 071 Oct 1996 372 041 Nov 1996 278 031 Dec 1996 343 071 Year Total 7059 0 Jan 1997 716 013 1 Feb 1997 322 071 Mar 1997 349 018 1 Apr 1997 443 014 1 May 1997 370 091 Jun 1997 184 041 Jul 1997 500 071 Aug 1997 792 010 1 Sep 1997 875 012 1 Oct 1997 403 051 Nov 1997 884 013 1 Dec 1997 1813 013 1 Year Total 7651 0 4/5/2005 Page 3 of 6 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting BEAVER CREEK, UNDEFINED WDSP Pool Jan 1998 775 091 Feb 1998 743 091 Mar 1998 444 061 Apr 1998 413 071 May 1998 420 061 Jun 1998 1069 013 1 Jul 1998 616 091 Aug 1998 745 091 Sep 1998 799 091 Oct 1998 1040 010 1 Nov 1998 975 011 1 Dec 1998 1182 014 1 Year Total 9221 0 Jan 1999 1048 012 1 Feb 1999 865 011 1 Mar 1999 1052 013 1 Apr 1999 434 061 May 1999 439 091 Jun 1999 447 081 Jul 1999 1110 012 1 Aug 1999 1158 015 1 Sep 1999 741 012 1 Oct 1999 1034 019 1 Nov 1999 942 015 1 Dec 1999 1069 017 1 Year Total 10339 0 Jan 2000 1650 024 1 Feb 2000 1407 020 1 Mar 2000 1216 017 1 Apr 2000 715 014 1 May 2000 1285 024 1 Jun 2000 1356 018 1 Jul 2000 1612 023 1 Aug 2000 1570 018 1 Sep 2000 887 016 1 Oct 2000 1336 022 1 Nov 2000 1499 020 1 Dec 2000 1386 019 1 Year Total 15919 0 4/5/2005 Page 4 of 6 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting BEAVER CREEK, UNDEFINED WDSP Pool Jan 2001 1367 018 1 Feb 2001 1341 019 1 Mar 2001 1750 021 1 Apr 2001 1634 021 1 May 2001 1711 022 1 Jun 2001 1388 017 1 Jul 2001 2015 024 1 Aug 2001 1839 024 1 Sep 2001 1846 023 1 Oct 2001 2191 026 1 Nov 2001 1439 081 Dec 2001 2563 091 Year Total 21084 0 Jan 2002 1625 091 Feb 2002 2511 025 1 Mar 2002 2447 014 1 Apr 2002 2085 031 May 2002 1702 031 Jun 2002 2324 031 Jul 2002 2364 051 Aug 2002 3118 071 Sep 2002 1999 031 Oct 2002 2129 041 Nov 2002 2126 051 Dec 2002 2770 041 Year Total 27200 0 Jan 2003 3017 061 Feb 2003 3270 071 Mar 2003 2199 041 Apr 2003 2216 041 May 2003 2375 051 Jun 2003 2023 071 Jul 2003 2063 081 Aug 2003 2571 081 Sep 2003 2501 051 Oct 2003 3801 051 Nov 2003 7673 091 Dec 2003 5696 081 Year Total 39405 0 4/5/2005 Page 5 of 6 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting BEAVER CREEK, UNDEFINED WDSP Pool Jan 2004 6607 091 Feb 2004 7180 091 Mar 2004 9938 012 1 Apr 2004 5144 051 May 2004 6502 010 1 Jun 2004 6703 081 Jul 2004 6696 091 Aug 2004 8545 011 1 Sep 2004 9258 013 1 Oct 2004 8693 011 1 Nov 2004 3552 061 Year Total 78818 0 Pool Total 529,366 0 4/5/2005 Page 6 of 6 Beaufort SeaN AOGCC Colville River Unit LOCATION MAP 0 3 miles FIORD 2 BERGSCHRUND 1 BERGSCHRUND 2 BERGSCHRUND 2A TEMPTATION 1 NANUK 1 NUIQSUT 1 FIORD 3 FIORD 3A NECHELIK 1 NANUK 2 CD2-33 CD2-33A Nanuq 3 Bottom hole locations of confidential development wells are shown in red. 3 E 12 N5 E4 E 6 E 11 N13 N Alaska Department ofNATURALRESOURCES Division of Oil and Gas Reference List BEAVER CREEK, BEAVER CREEK OIL Alaska Oil and Gas Conservation Commission, 1988, Beaver Creek Field, Sterling Gas Pool, Beluga Gas Pool, Beaver Creek Oil Pool, Conservation Order No. 237 Alaska Oil and Gas Conservation Commission, 2004, Production Database Jones, D.L., 1986, Beaver Creek Area, State of Alaska - Proposed Field and Pool Regulations and Classification, in Alaska Oil and Gas Conservation Commission Conservation Order No. 237, p. 8 - 19. 9/1/2005 Page 1 of 1 Beaver Creek Oil Pool Summary The Beaver Creek Oil Pool was discovered in 1972 by the Beaver Creek Unit No. 4 well and developed with four wells drilled between 1972 to 1981. Regular production began in January 1973, and peaked at 2,188 barrels of oil per day during July 1973. At the end of 2004, the production from the pool averaged 186 barrels of oil and 23 barrels of water per day. Production from the pool has been dominated by Beaver Creek Unit No. 4, which has produced a total of 4,455,577 barrels of oil. The other major producer is Beaver Creek Unit No. 5RD, which has produced 1,206,737 barrels of oil. Beaver Creek Unit No. 5 and No. 6 have been minor producers.1 Geology The Beaver Creek oil pool is the accumulation of oil that is common to, and correlates with, the accumulation present in the Beaver Creek Unit No. 4 well between the measured depths of 14,518 feet and 15,874 feet.2 This oil pool comprises reservoir sandstone and conglomeratic sandstone assigned to the Tyonek G-Zone and the Hemlock Formation. These sediments are fluvial in origin, and were deposited as valley-fill and or within floodplains. The Beaver Creek Oil Pool accumulation lies at the crest of a nearly circular anticline, which is slightly elongate in a north-south direction. The accumulation is bound by to the east by a north-south trending fault, and by dip closure to the north, west, and south. The crest of the anticline lies approximately 14,500 feet below sea level. Pressure transient analysis of DST data indicates the Hemlock has an effective permeability of 0.5 md, and the G-Zone has an effective permeability of about 75 md. Oil gravity in the G-Zone is approximately 34 to 35 degrees API, and viscosity is approximately 0.7 centipoise.3 SFD Revised September 1, 2005 1 Alaska Oil and Gas Conservation Commission, 2004, Production Database 2 Alaska Oil and Gas Conservation Commission, 1988, Beaver Creek Field, Sterling Gas Pool, Beluga Gas Pool, Beaver Creek Oil Pool, Conservation Order No. 237 3 Jones, D.L., 1986, Beaver Creek Area, State of Alaska - Proposed Field and Pool Regulations and Classification, in Conservation Order 237 File, p. 8 - 19. AAOrder No.DateOperator Description Current BEAVER CREEK FIELD *No Pool* Current Orders 524 0CO 20-Jul-04 Order adopting rules regulating sustained annulus pressures. Y 408 0CO 15-Jan-98MARATHON OIL Denial of Marathon request to exempt field from req. of 20 AAC 25.280. Y 80DIO 13-May-93MARATHON OIL Disposal of oil field waste by underground injection in Beaver Creek Unit 3 well. Y 40DIO 01-Jun-87MARATHON OIL Disposal of oil field wastes by underground injection in Beaver Creek Unit 2 well. Y AAOrder No.DateOperator Description Current BEAVER CREEK FIELD BEAVER CREEK OIL POOL Current Orders 534 0CO 04-Oct-04MARATHON OIL Order re: Waiver of Certain Wellhead Equipment Requirement of 20 AAC 25.200 for Beaver Creek Field Wells. Y 237 0CO 05-Aug-88MARATHON OIL Pool rules for Beaver creek field. Sterling Gas Pool, Beluga Gas Pool, and Beaver Creek Oil Pool. Y AAOrder No.DateOperator Description Current BEAVER CREEK FIELD *No Pool* Spacing Exception Orders 521 0CO 20-Jul-04MARATHON OIL Spacing Exception Beaver Creek Unit #14.Y 498 0CO 07-Oct-03MARATHON OIL Spacing Exception for the drilling of the Beaver Creek Unit No. 13 gas development well. Y 490 0CO 29-Apr-03MARATHON OIL Spacing Exception. Beaver Creek Unit No 3 Deepen.Y 0.01.02.03.04.05.0Producing Oil WellsBEAVER CREEK FIELD, BEAVER CREEK OIL POOL020406080100Water Cut ( % )BEAVER CREEK FIELD, BEAVER CREEK OIL POOL0.10.51510Cum Oil Prod ( MMbbl )Cum Water Prod ( MMbbl )Cum Gas Prod ( MMMcf )BEAVER CREEK FIELD, BEAVER CREEK OIL POOL1972 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 2000 01 02 03 040.010.050.10.51510Oil Rate (CD) ( Mbbl/d )Water Rate (CD) ( Mbbl/d )Gas Rate (CD) ( MMcf/d )Gas / Oil Ratio ( Mcf/bbl )BEAVER CREEK FIELD, BEAVER CREEK OIL POOL Alpine Oil Pool - Permitted Wells0246810121416182019992000200120022003YearDev-MultilatDev-StDev-NewService-StService-NewExpl-StExpl-NewPermitted Wells 0.01.02.0Disposal WellsBEAVER CREEK FIELD, UNDEFINED WASTE DISPOSAL POOL1510501005001000Cum Water Disp ( Mbbl )BEAVER CREEK FIELD, UNDEFINED WASTE DISPOSAL POOL1987 88 89 90 91 92 93 94 95 96 97 98 99 2000 01 02 03 041510501005001000Waste Disposal Rate ( bbl/d )BEAVER CREEK FIELD, UNDEFINED WASTE DISPOSAL POOL