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Home My WebLink AboutGas-McArthurRiver-MidKenaiAlaska Oil and Gas Conservation Commisssion - Pool Statistics, Unit and Pool Home Orders Staff Calendar Contact Us AOGCC Pool Statistics McArthur River Field, Mid Kenai Gas Pool Alaska Oil and Gas Conservation Commission > Annual Reports > Pool Statistics - 2004: Updated 01 August 2005 Page: 1 > 2 Operator:Union Oil Company of California Discovery Well:Union Oil Company of California. Trading Bay Unit G-18 Permit #168-105 API No. 50-733-20160-00-00 Sec. 28, T09N, R13W, SM Depth: 6,390’ MD / 4,510' TVD December 2, 1968 Status:Producing Location:Cook Inlet Area Loc. Map DNR Unit Map Orders:Complete List Summary:Production from the Middle Kenai Gas Pool began in December 1968 from the Grayling Platform, followed shortly thereafter by production from the Dolly Varden and King Salmon Platforms. The initial production consisted of "wet" gas, which contains appreciable amounts of natural gas liquids produced in association with oil from the West Foreland, Hemlock and Middle Kenai G oil pools. Most of the associated gas produced from McArthur River prior to 1988 was not sold commercially; it was used to fuel lease operations and provide gas lift. In 1988, the Steelhead Platform was constructed to produce “dry” gas (methane) from the Grayling Gas Sands. Production from the pool peaked at 225 billion cubic feet per day in November 1997. During December 2004, production from the platform averaged 92.5 million cubic feet per day. About 4% of the gas from this pool is now used for lease operations, and the remainder is sold commercially. The Middle Kenai Gas Pool is defined as the accumulation of gas common to, and correlative with, the accumulation found in the Marathon Trading Bay Unit wells between the measured depths of 1,518’ in well M-1 to 8,982’ in well M-14. The Middle Kenai Gas Pool (also known as Grayling Gas Sands) is located within the Upper Middle Miocene Chuitna and Middle Ground Shoal members of the Tyonek Formation, which are part of the Kenai Group. The reservoir sands occur in a continuous sequence that contains the gas accumulations. As currently defined, the Middle Kenai Gas Pool consists of the Upper A series, Zones A through F, and the G-O series, which lies above the G Zone Oil Pool. In the vicinity of the Steelhead Platform, the non-marine sediments of the Middle Kenai Gas Pool were deposited in fluvial-alluvial meander belts. The sand/shale sequences within this portion of the Tyonek Formation are interbedded with distinctive coal layers, suggesting low energy, swamp-like conditions. Sand units are often conglomeratic, generally thin (20 to 50 feet thick), and may not persist laterally. Porosity ranges from 12 to 32 percent. The McArthur River Field structure is an asymmetric anticline that is oriented approximately north 20° east. The structure is cut by two normal faults that do not affect the limits of the hydrocarbon reservoirs. McArthur River original gas in place is estimated to be 1.35 TCF. Structure Map Strat Column Orig. Gas in Place: 1.35 TCF (Thomas, and others, 2004) Production:Prod Chart Prod Report Prod Data Gas (mcf)Water (bbls)Disposed Fluids (bbls) Cumulative 999,297,501 362,990 0 2001 Total 58,570,285 58,205 0 2002 Total 48,674,161 32,634 0 http://www.state.ak.us/local/akpages/ADMIN/ogc...s_Pools/McArthur%20River%20-%20Gas/1_Gas_1.htm (1 of 2) [3/28/2008 6:14:26 PM] Alaska Oil and Gas Conservation Commisssion - Pool Statistics, Unit and Pool 2003 Total 37,133,934 31,726 0 2004 Total 32,773,113 12,371 0 2003 Rate (/d)101,737 87 0 2004 Rate (/d) 89,789 34 0 Change (%)-12% -61% 0% Continued: 1 > 2 Home Orders Staff Calendar Contact Us Webmaster http://www.state.ak.us/local/akpages/ADMIN/ogc...s_Pools/McArthur%20River%20-%20Gas/1_Gas_1.htm (2 of 2) [3/28/2008 6:14:26 PM] Alaska Oil and Gas Conservation Commisssion - Pool Statistics, Unit and Pool Home Orders Staff Calendar Contact Us AOGCC Pool Statistics McArthur River Field, Mid Kenai Gas Pool Alaska Oil and Gas Conservation Commission > Annual Reports > Pool Statistics - 2004: Updated 01 August 2005 Page: 1 > 2 Field Development Information: Wells In Field Type Well Status 2004 2003 2002 2001 2000 Producer Gas 20 20 19 17 16 Injector Disposal 0 0 0 0 0 Non-Operating Suspended 0 0 0 0 0 Abandoned 2 2 2 2 2 Total 22 22 21 19 18 Permitted Wells in Field: Type Well Status 2004 2003 2002 2001 2000 Development New 0 0 0 1 0 Sidetrack 0 1 0 1 0 Multilateral 0 0 0 0 0 Service New 0 0 0 0 0 Exploration New 0 0 0 0 0 Total 0 1 0 2 0 Active Completions in Pool (Month of December): Type Well Status 2004 2003 2002 2001 2000 Gas Producer Flowing 15 15 14 15 15 Other 0 0 0 0 0 Shut-In 3 2 3 2 1 Disposal Disposal Injector 0 0 0 0 0 Shut-In 0 0 0 0 0 Total 18 17 17 17 16 Reservoir Properties: Tyonek Formation Description 2004 2003 2002 2001 2000 Reference Datum - ft. below sea level 4500 4500 4500 4500 4500 Temperature - ° F 120 120 120 120 120 Porosity - % 22 22 22 22 22 Permeability - md 900 900 900 900 900 Swi - % 36 36 36 36 36 Orig. Press. - psi 3825-980 3825-980 3825-980 3825-980 3825-980 Curr. Reservoir Press. - psi 525 600 675 700 850 Curr. Reservoir Press. - Test Date May-04 May-03 May-02 May-01 May-00 Gas Specific Gravity (Air = 1.0) .564 .564 .564 .564 .564 Gross Pay - ft. 515 515 515 515 515 Net Pay - ft. 375 375 375 375 375 References Continued: 1 > 2 Home Orders Staff Calendar Contact Us Webmaster http://www.state.ak.us/local/akpages/ADMIN/ogc/an.../Gas_Pools/McArthur%20River%20-%20Gas/1_Gas_2.htm [3/28/2008 6:14:32 PM] State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing MCARTHUR RIVER, MIDKENAI GAS Pool Jan 1958 Dec 1968 0 31517 031 1 0 31517 0Year Total Jan 1969 0 42143 028 1 Feb 1969 0 79934 039 2 Mar 1969 0 121719 062 2 Apr 1969 0 251104 060 2 May 1969 0 285449 062 2 Jun 1969 0 435014 060 2 Jul 1969 0 465809 059 2 Aug 1969 0 420752 079 3 Sep 1969 0 559358 088 3 Oct 1969 0 539230 092 3 Nov 1969 0 734926 090 3 Dec 1969 0 694018 092 3 0 4629456 0Year Total Jan 1970 0 555143 083 3 Feb 1970 0 383023 072 3 Mar 1970 0 452986 085 3 Apr 1970 0 539216 090 3 May 1970 0 428565 072 3 Jun 1970 0 245927 090 3 Jul 1970 0 292274 088 3 Aug 1970 0 488713 093 3 Sep 1970 0 278693 090 3 Oct 1970 0 310618 093 3 Nov 1970 0 400012 090 3 Dec 1970 0 323482 093 3 0 4698652 0Year Total Jan 1971 0 332455 093 3 Feb 1971 0 264265 084 3 Mar 1971 0 324009 093 3 Apr 1971 0 352450 089 3 May 1971 0 299120 093 3 Jun 1971 0 311039 090 3 Jul 1971 0 258458 090 3 Aug 1971 0 249942 093 3 Sep 1971 0 284851 090 3 Oct 1971 0 258427 093 3 Nov 1971 0 301568 090 3 Dec 1971 0 335810 092 3 0 3572394 0Year Total 2/11/2005 Page 1 of 12 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing MCARTHUR RIVER, MIDKENAI GAS Pool Jan 1958 Jan 1972 0 340045 093 3 Feb 1972 0 475066 087 3 Mar 1972 0 314307 093 3 Apr 1972 0 402757 089 3 May 1972 0 329401 093 3 Jun 1972 0 315140 090 3 Jul 1972 0 370212 093 3 Aug 1972 0 325388 093 3 Sep 1972 0 373679 090 3 Oct 1972 0 384679 093 3 Nov 1972 0 300697 090 3 Dec 1972 0 314117 093 3 0 4245488 0Year Total Jan 1973 0 312760 093 3 Feb 1973 0 402305 084 3 Mar 1973 0 411878 093 3 Apr 1973 0 379511 090 3 May 1973 0 377133 092 3 Jun 1973 0 388454 088 3 Jul 1973 0 408361 092 3 Aug 1973 0 377261 093 3 Sep 1973 0 410485 088 3 Oct 1973 0 457867 093 3 Nov 1973 0 462753 090 3 Dec 1973 0 495878 0103 4 0 4884646 0Year Total Jan 1974 0 515206 0100 4 Feb 1974 0 434465 092 4 Mar 1974 0 540939 0123 4 Apr 1974 0 579610 0118 4 May 1974 0 558468 0115 4 Jun 1974 0 543649 099 4 Jul 1974 0 602237 093 3 Aug 1974 0 679452 0104 5 Sep 1974 0 627096 099 4 Oct 1974 0 609589 0123 4 Nov 1974 0 574407 0120 4 Dec 1974 0 595503 0122 4 0 6860621 0Year Total 2/11/2005 Page 2 of 12 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing MCARTHUR RIVER, MIDKENAI GAS Pool Jan 1958 Jan 1975 0 717626 0123 4 Feb 1975 0 624846 0118 5 Mar 1975 0 694483 0126 5 Apr 1975 0 631427 0119 4 May 1975 0 696914 0125 5 Jun 1975 0 526490 0120 4 Jul 1975 0 608364 0124 4 Aug 1975 0 757558 0142 5 Sep 1975 0 618254 0120 4 Oct 1975 0 664622 0125 5 Nov 1975 0 712438 0121 5 Dec 1975 0 743868 0119 4 0 7996890 0Year Total Jan 1976 0 622164 0112 5 Feb 1976 0 656503 0105 5 Mar 1976 0 721887 0107 4 Apr 1976 0 473015 076 4 May 1976 0 468500 074 3 Jun 1976 0 407256 064 3 Jul 1976 0 572099 0110 4 Aug 1976 0 531532 0118 4 Sep 1976 0 583101 092 4 Oct 1976 0 602013 0101 4 Nov 1976 0 506930 093 4 Dec 1976 0 679894 0113 4 0 6824894 0Year Total Jan 1977 0 786058 0124 4 Feb 1977 0 581627 0112 4 Mar 1977 0 783588 0124 4 Apr 1977 0 655650 0128 5 May 1977 0 640941 0150 5 Jun 1977 0 577550 0129 5 Jul 1977 0 593092 0124 4 Aug 1977 0 650288 0124 4 Sep 1977 0 648080 0120 4 Oct 1977 0 638567 0124 4 Nov 1977 0 613517 0120 4 Dec 1977 0 567593 0121 4 0 7736551 0Year Total 2/11/2005 Page 3 of 12 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing MCARTHUR RIVER, MIDKENAI GAS Pool Jan 1958 Jan 1978 0 692681 0123 4 Feb 1978 0 597076 0112 4 Mar 1978 0 630029 0124 4 Apr 1978 0 642851 0120 4 May 1978 0 606529 0124 4 Jun 1978 0 639527 0120 4 Jul 1978 0 623685 0124 4 Aug 1978 0 614805 0124 4 Sep 1978 0 593038 0120 4 Oct 1978 0 638437 0124 4 Nov 1978 0 635622 0141 5 Dec 1978 0 748169 0155 5 0 7662449 0Year Total Jan 1979 0 664434 0137 5 Feb 1979 0 594366 0112 4 Mar 1979 0 486744 0124 4 Apr 1979 0 632080 0120 4 May 1979 0 614817 0124 4 Jun 1979 0 673114 0145 5 Jul 1979 0 704509 0155 5 Aug 1979 0 627621 0155 5 Sep 1979 0 654193 0150 5 Oct 1979 0 703530 0155 5 Nov 1979 0 692391 0150 5 Dec 1979 0 708698 0154 5 0 7756497 0Year Total Jan 1980 0 633755 0155 5 Feb 1980 0 614841 0145 5 Mar 1980 0 668878 0155 5 Apr 1980 0 608977 0135 5 May 1980 0 613798 0124 4 Jun 1980 0 577844 0119 4 Jul 1980 0 634501 0124 4 Aug 1980 0 639127 0124 4 Sep 1980 0 636223 0120 4 Oct 1980 0 591484 0124 4 Nov 1980 0 644368 0120 4 Dec 1980 0 683623 0134 5 0 7547419 0Year Total 2/11/2005 Page 4 of 12 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing MCARTHUR RIVER, MIDKENAI GAS Pool Jan 1958 Jan 1981 0 669092 0124 4 Feb 1981 0 632703 0112 4 Mar 1981 0 615972 0124 4 Apr 1981 0 610835 0120 4 May 1981 0 610457 0124 4 Jun 1981 0 610968 0120 4 Jul 1981 0 632804 0124 4 Aug 1981 0 648888 0124 4 Sep 1981 0 593095 0120 4 Oct 1981 0 631352 0124 4 Nov 1981 0 725224 0120 4 Dec 1981 0 573992 0124 4 0 7555382 0Year Total Jan 1982 0 725391 0124 4 Feb 1982 0 595178 0112 4 Mar 1982 0 822216 0124 4 Apr 1982 0 715840 0120 4 May 1982 0 735752 0124 4 Jun 1982 0 786067 0120 4 Jul 1982 0 688620 0125 5 Aug 1982 0 802597 0124 4 Sep 1982 0 731142 0120 4 Oct 1982 0 769399 0124 4 Nov 1982 0 656622 0120 4 Dec 1982 0 690185 0124 4 0 8719009 0Year Total Jan 1983 0 641744 0124 4 Feb 1983 0 594004 0112 4 Mar 1983 0 639531 0124 4 Apr 1983 0 676320 0122 5 May 1983 0 713038 0155 5 Jun 1983 0 601901 0150 5 Jul 1983 0 688864 0155 5 Aug 1983 0 682690 0155 5 Sep 1983 0 641255 0135 5 Oct 1983 0 663161 0124 4 Nov 1983 0 660656 0143 5 Dec 1983 0 728149 0147 5 0 7931313 0Year Total 2/11/2005 Page 5 of 12 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing MCARTHUR RIVER, MIDKENAI GAS Pool Jan 1958 Jan 1984 0 695382 0155 5 Feb 1984 0 640233 0145 5 Mar 1984 0 759669 0155 5 Apr 1984 0 693592 0150 5 May 1984 0 732945 0153 5 Jun 1984 0 730432 0150 5 Jul 1984 0 768120 0155 5 Aug 1984 0 828796 0155 5 Sep 1984 0 845015 0150 5 Oct 1984 0 850549 0155 5 Nov 1984 0 826807 0150 5 Dec 1984 0 870769 0155 5 0 9242309 0Year Total Jan 1985 0 742757 0155 5 Feb 1985 0 735875 0140 5 Mar 1985 0 727869 0152 5 Apr 1985 0 658919 0145 5 May 1985 0 554035 0135 5 Jun 1985 0 274124 090 3 Jul 1985 0 245891 087 3 Aug 1985 0 286832 0122 4 Sep 1985 0 317084 0116 4 Oct 1985 0 579820 0142 5 Nov 1985 0 697466 0149 5 Dec 1985 0 782091 0137 5 0 6602763 0Year Total Jan 1986 0 794567 0144 5 Feb 1986 0 705509 0134 5 Mar 1986 0 619880 0139 5 Apr 1986 0 634595 0135 5 May 1986 0 752610 0143 5 Jun 1986 0 795327 0132 5 Jul 1986 0 871163 0138 5 Aug 1986 0 809270 0136 5 Sep 1986 0 804217 0126 5 Oct 1986 0 805043 0139 5 Nov 1986 0 747347 0132 5 Dec 1986 0 823695 0125 5 0 9163223 0Year Total 2/11/2005 Page 6 of 12 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing MCARTHUR RIVER, MIDKENAI GAS Pool Jan 1958 Jan 1987 0 789580 0129 5 Feb 1987 0 659980 0122 5 Mar 1987 0 758378 0139 5 Apr 1987 0 769854 0136 5 May 1987 0 837319 0135 5 Jun 1987 0 819029 0136 5 Jul 1987 0 842869 0145 5 Aug 1987 0 785653 0161 6 Sep 1987 0 811496 0164 7 Oct 1987 0 1160786 0171 7 Nov 1987 0 827296 0130 6 Dec 1987 0 821730 0140 7 0 9883970 0Year Total Jan 1988 0 1012501 0124 4 Feb 1988 0 851485 0116 4 Mar 1988 0 1068181 0124 4 Apr 1988 0 961568 0119 4 May 1988 0 833797 0124 4 Jun 1988 0 593801 0120 4 Jul 1988 0 647290 0124 4 Aug 1988 0 754245 0124 4 Sep 1988 0 734779 0121 5 Oct 1988 0 1665103 0182 6 Nov 1988 0 1508807 0176 6 Dec 1988 0 1971033 0160 6 0 12602590 0Year Total Jan 1989 0 2152938 0164 6 Feb 1989 0 2270570 0164 6 Mar 1989 0 2293532 0184 6 Apr 1989 0 2107693 0180 6 May 1989 0 2089206 0186 6 Jun 1989 0 2140050 0180 6 Jul 1989 0 2317418 0186 6 Aug 1989 0 999882 0141 6 Sep 1989 0 960605 0141 6 Oct 1989 0 2439375 0187 7 Nov 1989 0 3352160 0206 7 Dec 1989 0 3559164 0217 7 0 26682593 0Year Total 2/11/2005 Page 7 of 12 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing MCARTHUR RIVER, MIDKENAI GAS Pool Jan 1958 Jan 1990 0 3379317 0211 8 Feb 1990 0 3608701 0221 8 Mar 1990 0 4004684 0241 9 Apr 1990 0 4192272 0249 9 May 1990 0 3942213 0243 9 Jun 1990 0 3988590 0235 8 Jul 1990 0 3947902 0241 8 Aug 1990 0 4237010 0264 10 Sep 1990 0 3790584 0296 10 Oct 1990 0 3942119 0303 10 Nov 1990 0 4470233 0311 11 Dec 1990 0 5393121 0340 11 0 48896746 0Year Total Jan 1991 0 5240645 0339 11 Feb 1991 0 4820759 0303 11 Mar 1991 0 4779224 0316 11 Apr 1991 0 4723924 0319 11 May 1991 0 4209897 0306 11 Jun 1991 0 4851273 0311 11 Jul 1991 0 4776066 0291 10 Aug 1991 0 4922667 0305 10 Sep 1991 0 3666592 0279 10 Oct 1991 0 3550528 0273 10 Nov 1991 0 5102009 0322 11 Dec 1991 0 5430935 0332 11 0 56074519 0Year Total Jan 1992 0 5790069 0337 11 Feb 1992 0 5863758 0315 11 Mar 1992 0 5842661 0334 11 Apr 1992 0 6049737 0305 11 May 1992 0 5588620 0336 11 Jun 1992 0 4834904 0312 11 Jul 1992 0 5295041 0300 10 Aug 1992 0 3633638 0320 11 Sep 1992 0 4039836 0255 11 Oct 1992 0 5772871 0308 11 Nov 1992 0 5882122 0293 11 Dec 1992 0 6733387 0325 12 0 65326644 0Year Total 2/11/2005 Page 8 of 12 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing MCARTHUR RIVER, MIDKENAI GAS Pool Jan 1958 Jan 1993 0 6477813 0326 12 Feb 1993 0 4734446 0268 12 Mar 1993 0 4838901 0300 12 Apr 1993 0 4637454 0272 12 May 1993 0 4799877 0285 11 Jun 1993 0 4965724 0291 11 Jul 1993 0 4753724 0283 11 Aug 1993 0 2375114 0203 11 Sep 1993 0 4112523 0289 12 Oct 1993 0 4759755 0305 12 Nov 1993 0 6404559 0360 12 Dec 1993 0 5545719 0345 12 0 58405609 0Year Total Jan 1994 0 4450359 0342 13 Feb 1994 0 4703607 0320 12 Mar 1994 0 5201272 0367 12 Apr 1994 0 3481318 0324 12 May 1994 0 1842659 0248 12 Jun 1994 0 2169040 0254 12 Jul 1994 0 2452204 0247 8 Aug 1994 0 2663403 0264 9 Sep 1994 0 2739517 0262 12 Oct 1994 0 4774806 0351 12 Nov 1994 0 5865287 0352 12 Dec 1994 0 5477825 0360 12 0 45821297 0Year Total Jan 1995 0 5655189 0369 12 Feb 1995 0 3753784 0336 12 Mar 1995 0 5926794 0372 12 Apr 1995 0 4451577 0339 13 May 1995 0 3253890 0329 12 Jun 1995 0 3514380 0336 12 Jul 1995 0 2897538 0330 12 Aug 1995 0 3558966 0358 12 Sep 1995 0 2751153 0312 12 Oct 1995 0 3804961 0335 12 Nov 1995 0 5215484 0345 12 Dec 1995 0 5727053 0341 11 0 50510769 0Year Total 2/11/2005 Page 9 of 12 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing MCARTHUR RIVER, MIDKENAI GAS Pool Jan 1958 Jan 1996 0 5608077 1268336 11 Feb 1996 0 5132152 2359318 11 Mar 1996 0 5361854 3095341 11 Apr 1996 0 4514830 2414326 11 May 1996 0 4726245 1822313 11 Jun 1996 0 5067974 2162325 11 Jul 1996 0 5206816 2245333 11 Aug 1996 0 4077772 1887302 11 Sep 1996 0 4931109 3932331 12 Oct 1996 0 5938519 1641345 12 Nov 1996 0 6232715 1847329 12 Dec 1996 0 6713595 1398341 11 0 63511658 26070Year Total Jan 1997 0 5716549 1109306 11 Feb 1997 0 5365416 1193308 11 Mar 1997 0 5870561 1271332 11 Apr 1997 0 5445649 2070330 11 May 1997 0 4536280 994340 11 Jun 1997 0 4267044 1080330 11 Jul 1997 0 4168410 1304341 11 Aug 1997 0 4159034 574338 11 Sep 1997 0 4121064 1368295 12 Oct 1997 0 6018078 3841385 14 Nov 1997 0 6753516 2479378 13 Dec 1997 0 6857734 1515397 13 0 63279335 18798Year Total Jan 1998 0 6471876 1737402 13 Feb 1998 0 5752426 2057363 14 Mar 1998 0 6424591 979403 13 Apr 1998 0 5897360 2510390 13 May 1998 0 4826786 1544403 13 Jun 1998 0 5299156 2484390 13 Jul 1998 0 5941220 2472402 13 Aug 1998 0 5303866 2055373 13 Sep 1998 0 5453259 1377390 14 Oct 1998 0 5973649 788403 14 Nov 1998 0 6414152 2021390 13 Dec 1998 0 6342512 1017403 13 0 70100853 21041Year Total 2/11/2005 Page 10 of 12 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing MCARTHUR RIVER, MIDKENAI GAS Pool Jan 1958 Jan 1999 0 6357587 4770403 13 Feb 1999 0 5453151 4767365 14 Mar 1999 0 6200799 5515406 14 Apr 1999 0 5860577 5329388 14 May 1999 0 6105874 5661404 14 Jun 1999 0 5699303 5360391 14 Jul 1999 0 4204762 5668411 14 Aug 1999 0 4016524 2436434 14 Sep 1999 0 3208164 4187417 14 Oct 1999 0 6025692 4371434 14 Nov 1999 0 6157328 5840443 15 Dec 1999 0 6350454 5622465 15 0 65640215 59526Year Total Jan 2000 0 6225681 5783464 15 Feb 2000 0 5539497 5833435 15 Mar 2000 0 5749347 7288465 15 Apr 2000 0 5433539 7463447 15 May 2000 0 5170338 7920440 15 Jun 2000 0 5053097 11811422 15 Jul 2000 0 5273216 10658436 15 Aug 2000 0 5217479 7572434 14 Sep 2000 0 4704188 11449437 15 Oct 2000 0 4831501 11854465 15 Nov 2000 0 4263732 5476415 15 Dec 2000 0 4311298 9690418 15 0 61772913 102797Year Total Jan 2001 0 5116985 8363465 15 Feb 2001 0 4825078 7334420 15 Mar 2001 0 5600014 7461465 15 Apr 2001 0 5172690 7249450 15 May 2001 0 5019248 7659465 15 Jun 2001 0 4572959 6505442 15 Jul 2001 0 4568107 3920443 15 Aug 2001 0 4626562 2184421 14 Sep 2001 0 4310819 3728426 15 Oct 2001 0 4680516 2342433 15 Nov 2001 0 5043737 573419 14 Dec 2001 0 5233570 707438 15 0 58770285 58025Year Total 2/11/2005 Page 11 of 12 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing MCARTHUR RIVER, MIDKENAI GAS Pool Jan 1958 Jan 2002 0 5176882 1007465 15 Feb 2002 0 4692577 2391420 15 Mar 2002 0 4808789 2727460 15 Apr 2002 0 4381646 2736448 15 May 2002 0 3826469 1810479 16 Jun 2002 0 4004210 2119447 15 Jul 2002 0 3930441 4869452 15 Aug 2002 0 3135206 1530396 14 Sep 2002 0 3387944 4153407 15 Oct 2002 0 3910282 4096434 14 Nov 2002 0 3709239 1892420 14 Dec 2002 0 3710476 3304434 14 0 48674161 32634Year Total Jan 2003 0 3606359 4125434 14 Feb 2003 0 3319783 4173392 14 Mar 2003 0 3523987 4178441 15 Apr 2003 0 3484675 3567430 15 May 2003 0 3283467 3392434 14 Jun 2003 0 3038949 3743418 14 Jul 2003 0 2986436 1613415 14 Aug 2003 0 2226470 675401 13 Sep 2003 0 2489982 899390 13 Oct 2003 0 2864928 977404 14 Nov 2003 0 2822104 2206389 14 Dec 2003 0 3261618 2180435 15 0 36908758 31728Year Total Jan 2004 0 3248158 1206451 15 Feb 2004 0 2886525 849435 15 Mar 2004 0 3105747 735465 15 Apr 2004 0 3014907 1101450 15 May 2004 0 2101935 506495 16 Jun 2004 0 2573249 948478 16 Jul 2004 0 2643288 1230470 16 Aug 2004 0 2475423 1158465 15 Sep 2004 0 2449760 1357443 15 Oct 2004 0 2593296 1120449 15 Nov 2004 0 2811053 1078450 15 Dec 2004 0 2869772 1083454 15 0 32773113 12371Year Total 0 999,297,501 362,990Pool Total 2/11/2005 Page 12 of 12 Knik ArmTurna g a i n A r m Seward Hwy H w y GlennSeward Hwy Sterling A la s ka R R Alaska R RHwy Parks Hwy SterlingHwyGulf of AlaskaC o o k I n l e tKachemak BayWasilla Tyonek Seward Palmer Ninilchik Nikiski Kenai Homer Cooper Landing Anchorage Houston McArthur River Field Mid Kenai Gas Pool McArthur River Field Steelhead Grayling Cook Inlet, Alaska DNR/DOG 2005 Reference List MCARTHUR RIVER, MIDKENAI GAS Alaska Oil and Gas Conservation Commission, 1969, Conservation Order No. 80, McArthur River Field, Middle Kenai Gas Pool, Middle Kenai "G" Oil Pool, Hemlock Oil Pool, West Foreland Oil Pool Alaska Oil and Gas Conservation Commission, 1987, Conservation Order No. 228, McArthur River Field, Middle Kenai Gas Pool, Alaska Oil and Gas Conservation Commission, 2005, Well and Production Information Database Anderson, R.T., 1990, Trading Bay Unit, State of Alaska, Revised Conservation Orders Nos. 80 and 228; in Alaska Oil and Gas Conservation Commission, 1987, Conservation Order No. 228 File Nelson, K., 2003, State Approves Trading Bay Expansion in Cook Inlet, in Petroleum News, Vol. 8, No. 28, week of July 13, 2003, available online at: http://www.petroleumnews.com/pnads/675629129.shtml State of Alaska Department of Administration, Office of Tax Appeals, 1991, Marathon Oil Company, Oil Production Tax, Amended Findings of Fact, Conclusions of Law and Order 1, online at http://www.state.ak.us/admin/ota/marathon.htm Thomas, C.P., Doughty, T.C., Faulder, D.D., and Hite, D.M., 2004, South-Central Alaska Natural Gas Study, U.S. Department of Energy, National Energy Technology Laboratory, Arctic Energy Office, Contract DE-AM26-99FT40575 UNOCAL, 1990, Engineering and Geologic Report, Exhibit A submitted in support of in expanding the Middle Kenai Gas Pool, Conservation Order No. 228 8/3/2005 Page 1 of 1 McArthur River, Middle Kenai Gas Pool Pool Summary Production from the Middle Kenai Gas Pool began in December 1968 from the Grayling Platform, followed shortly thereafter by production from the Dolly Varden and King Salmon Platforms.1 The initial production consisted of "wet" gas, which contains appreciable amounts of natural gas liquids produced in association with oil from the West Foreland, Hemlock and Middle Kenai G oil pools. Most of the associated gas produced from McArthur River prior to 1988 was not sold commercially; it was used to fuel lease operations and provide gas lift.2 In 1988, the Steelhead Platform was constructed to produce “dry” gas (methane) from the Grayling Gas Sands. 3 Production from the pool peaked at 225 billion cubic feet per day in November 1997. During December 2004, production from the platform averaged 92.5 million cubic feet per day.4 About 4% of the gas from this pool is now used for lease operations,5 and the remainder is sold commercially.6 The Middle Kenai Gas Pool is defined as the accumulation of gas common to, and correlative with, the accumulation found in the Marathon Trading Bay Unit wells between the measured depths of 1,518’ in well M-1 to 8,982’ in well M- 14.7 The Middle Kenai Gas Pool (also known as Grayling Gas Sands) is located within the Upper Middle Miocene Chuitna and Middle Ground Shoal members of the Tyonek Formation, which are part of the Kenai Group.8 The reservoir sands occur in a continuous sequence that contains the gas accumulations.9 As currently defined, the Middle Kenai Gas Pool consists of the Upper A series, Zones A through F, and the G-O series, which lies above the G Zone Oil Pool.10 In the vicinity of’ the Steelhead Platform, the non-marine sediments of the Middle Kenai Gas Pool were deposited in fluvial-alluvial meander belts. The sand/shale sequences within this portion of the Tyonek Formation are interbedded with distinctive coal layers, suggesting low energy, swamp-like conditions. Sand units are often conglomeratic, generally thin (20 to 50 feet thick), and may not persist laterally. Porosity ranges from 12 to 32 percent. The McArthur River Field structure is an asymmetric anticline that is oriented approximately north 20° east. The structure is cut by two normal faults that do not affect the limits of the hydrocarbon reservoirs.11 McArthur River original gas in place is estimated to be 1.35 TCF.12 1 Alaska Oil and Gas Conservation Commission, 2005, Well and Production Information Database 2 State of Alaska Department of Administration, Office of Tax Appeals, 1991, Marathon Oil Company, Oil Production Tax, Amended Findings of Fact, Conclusions of Law and Order 1, online at http://www.state.ak.us/admin/ota/marathon.htm 3 State of Alaska Department of Administration, Office of Tax Appeals, 1991, Marathon Oil Company, Oil Production Tax, Amended Findings of Fact, Conclusions of Law and Order 1, online at http://www.state.ak.us/admin/ota/marathon.htm 4 Alaska Oil and Gas Conservation Commission, 2005, Well and Production Information Database 5 Thomas, C.P., Doughty, T.C., Faulder, D.D., and Hite, D.M., 2004, South-Central Alaska Natural Gas Study, U.S. Department of Energy, National Energy Technology Laboratory, Arctic Energy Office, Contract DE-AM26-99FT40575, p. 160. 6 State of Alaska Department of Administration, Office of Tax Appeals, 1991, Marathon Oil Company, Oil Production Tax, Amended Findings of Fact, Conclusions of Law and Order 1, online at http://www.state.ak.us/admin/ota/marathon.htm 7 Anderson, R.T., 1990, Trading Bay Unit, State of Alaska, Revised Conservation Orders Nos. 80 and 228; in Alaska Oil and Gas Conservation Commission, 1987, Conservation Order No. 228 File 8 UNOCAL, 1990, Engineering and Geologic Report, Exhibit A submitted in support of in expanding the Middle Kenai Gas Pool, Conservation Order No. 228 9 UNOCAL, 1990, Engineering and Geologic Report, Exhibit A submitted in support of in expanding the Middle Kenai Gas Pool, Conservation Order No. 228 10 UNOCAL, 1990, Engineering and Geologic Report, Exhibit A submitted in support of in expanding the Middle Kenai Gas Pool, Conservation Order No. 228 11 UNOCAL, 1990, Engineering and Geologic Report, Exhibit A submitted in support of in expanding the Middle Kenai Gas Pool, Conservation Order No. 228 12 Thomas, C.P., Doughty, T.C., Faulder, D.D., and Hite, D.M., 2004, South-Central Alaska Natural Gas Study, U.S. Department of Energy, National Energy Technology Laboratory, Arctic Energy Office, Contract DE-AM26-99FT40575, p. 166. AAOrder No.DateOperator Description Current MCARTHUR RIVER FIELD *No Pool* Current Orders 234 1ACO 11-Jul-95UNION OIL CO Waiver of the production logging requirements of CO 234A Rule 3 for TBU wells K-3RD and K-19RD. Y 351 0CO 29-Dec-94UNION OIL CO Exempts field from requirements of 20 AAC 25.280(a) & (b).Y 350 0CO 23-Dec-94UNION OIL CO Permit commingling of production from Middle Kenai "G" Hemlock/W Foreland/undefined Jurassic Oil Pools, in TBU M-32 wellbore. Y 234 0ACO 21-Dec-93UNION OIL CO Commingling of produced fluids from Hemlock, Middle Kenai "G" & West Foreland oil Pools. Repeals CO 234. Y 234 1CO 18-Jun-92UNION OIL CO Waiver prod logging requirements for Trading Bay Unit wells M-25, M-27, M-28, M-29, G-32 & K-30RD. Y 284 0CO 23-Dec-91UNION OIL CO Commingle produced fluids from Middle Kenai "G" and W Foreland Oil Pools w/those from an unidentified pool in the TBU State M-28 wellbore. 3 POOLS Y 226 0CO 23-Jan-87Union Amends Rule 4 CO 080 to authorize underground injection for enhanced recovery oprns in the McArthur Riv West Forelands Oil Pool. Y 51AIO 10-Oct-86Union Amends Rule 6 of A10 #5.Y 50AIO 25-Jul-86Union Underground injection of fluids for enhanced recovery in McArthur Riv Middle Kenai G, Hemlock and West Forland oil pools in the Trading Bay Unit. Y 80 0ACO 30-Apr-74Union Amends Rule 4, CO 080 to allow injection for pressure maintenance in McArthur Riv Middle Kenai "G" Oil Pool. Y 107 0CO 14-Sep-71Union Authorize commingling of production from Middle Kenai G and the Hemlock Oil Pools in the TBU K-10 well. Y 80 0CO 30-Sep-69Union Pool rules for McArthur Riv Middle Kenai Gas Pool, McArthur Riv Middle Kenai "G", Hemlock & West Forelands Oil Pools. Y AAOrder No.DateOperator Description Current MCARTHUR RIVER FIELD *No Pool* Spacing Exception Orders 80 86CO 22-May-02UNION OIL CO SPACING EXCEPTION to drill and complete TBF A-29RD, an injector well that wil be drilled to the northwestern flank of the hemlock structure to support take-off from A-15RD and K-13RD2. Y 80 84CO 08-Mar-02UNION OIL CO Spacing exception TBF well A-15RDST1L1DP.Y 80 83CO 01-Mar-02UNION OIL CO Spacing Exception TBF A-29RD.Y 80 82CO 16-Jul-01UNION OIL CO Spacing exception for TBU K-24RD2 well.Y 80 81CO 04-Apr-01UNION OIL CO Spacing Exception for TBU K-13RD2 well.Y 80 80CO 09-Feb-01UNION OIL CO Spacing exception for TBU K-1RD2 Y 80 79CO 14-Jul-00UNION OIL CO spacing exception for TBU G-26RD Y 80 78CO 13-Apr-00UNION OIL CO Spacing Exception for TBU G-28 RD.N 80 77CO 02-Nov-99UNION OIL CO Spacing exception for TBU M-32RD well.Y 80 75CO 12-Jul-99UNION OIL CO Spacing exception for TBU D-31 L1 well.Y 80 76CO 12-Jul-99UNION OIL CO Spacing exception for TBU D-48 L1 well.Y 80 74CO 02-Jul-98UNION OIL CO Spacing Exception for TBU D-26RD oil well.Y 80 73CO 17-Jun-98UNION OIL CO Spacing Exception for TBU G-5RD oil well.Y 80 72CO 29-May-98UNION OIL CO Spacing exception for TBU G-15RD oil well.Y 80 71CO 02-Apr-98UNION OIL CO Spacing exception for TBU G-21RD oil well.Y 80 70CO 16-Jun-95UNION OIL CO Spacing Exception for TBU D-26RD well.Y 344 0CO 21-Nov-94UNION OIL CO Spacing exception for Trading Bay Unit M-32 development oil well. Y 80 69CO 20-Oct-94UNION OIL CO Spacing Exception for TBU M-32 well.Y 80 68CO 06-Dec-93UNION OIL CO Spacing exception for TBU M-31 well.Y 80 67CO 20-Oct-93UNION OIL CO Spacing exception for TBU K-26 well.Y 80 66CO 30-Aug-93UNION OIL CO Spacing Exception for TBU K-24RD well.Y 80 64CO 29-Dec-92UNION OIL CO Spacing Exception for TBU D-7RD #2 well.Y 80 65CO 29-Dec-92UNION OIL CO Spacing Exception for TBU D-48 well.Y 80 63CO 14-May-92UNION OIL CO Spacing Exception for TBU G-29RD well.N 80 62CO 02-Dec-91UNION OIL CO Spacing Exception for TBU G-01RD.Y 80 61CO 18-Jul-91UNION OIL CO Spacing exception for TBU M-20.Y 80 60CO 15-Jul-91UNION OIL CO Spacing exception for TBU G-14A-RD.Y 80 59CO 12-Jun-91UNION OIL CO Spacing Exception for TBU K-8RD2.Y 80 58CO 20-Feb-91UNION OIL CO Spacing exception for TBU M-29.Y 80 57CO 28-Jan-91UNION OIL CO Spacing Exception for TBU D-47.Y 80 56CO 29-Jan-90UNION OIL CO Spacing exception for TBU M-28.Y 80 55CO 03-Jan-90UNION OIL CO Spacing Exception for TBU G-40.Y 80 54CO 30-Jun-89UNION OIL CO Spacing Exception for TBU D-46.Y 80 53CO 04-Nov-87Union spacing exception for TBU M-26.Y 80 52CO 26-Aug-87Union Spacing exception for TBU M-25.Y 80 51CO 23-Dec-85Union Spacing Exception for TBU D-43RD.Y 80 50CO 12-Jun-85Union Spacing exception for TBU D-44.Y 80 49CO 09-Jan-85Union Spacing exception for TBU D-29RD.Y AAOrder No.DateOperator Description Current MCARTHUR RIVER FIELD *No Pool* Spacing Exception Orders 80 48CO 12-Oct-84Union Spacing exception for wells TBU K-8RD, G-29 & D-43.Y 80 47CO 27-May-83Union Spacing Exception for TBU D-35.Y 80 46CO 20-May-83Union Spacing Exception for TBU D-3RD2.Y 80 45CO 29-Mar-83Union Spacing Exception for TBU D-42.Y 80 44CO 13-Jan-83Union Spacing Exception for TBU G-3RD #2.Y 80 43CO 01-Jun-82Union Spacing Exception for TBU D-40RD.Y 80 42CO 22-Apr-82Union Spacing exception for TBU G-2RD.Y 80 41CO 31-Mar-82Union Spacing exception TBU D-4RD.Y 80 40CO 18-Mar-82Union Spacing Exception for TBU G-6RD.Y 80 39CO 11-Dec-81Union Spacing Exception for TBU G-4RD.Y 80 38CO 19-Feb-81Union Spacing Exception for TBU D-17RD.Y 80 37CO 04-Dec-80Union Spacing Exception for TBU K-3RD.Y 80 36CO 01-Oct-80Union Spacing exception for TBU D-16RD.Y 80 35CO 18-Jul-80Union Spacing Exception for TBU D-12RD.Y 80 34CO 06-Jun-80Union Spacing exception for TBU D-5RD.Y 80 33CO 17-Sep-79Union Spacing Exception for TBU D-41.Y 80 32CO 09-Aug-79Union Spacing Exception for TBU K-24.Y 80 31CO 11-Jun-79Union Spacing Exception for TBU D-29RD.Y 80 30CO 19-Apr-79Union Spacing exception for TBU D-3RD.Y 80 28CO 21-Mar-79Union Spacing Exception for TBU G-23RD.Y 80 27CO 21-Mar-79UNION OIL CO Spacing exception for TBU K-21RD.Y 80 29CO 21-Mar-79Union Spacing exception for TBU G-34RD.Y 80 27CO 27-Feb-79UNION OIL CO Spacing Exception for TBU D-34A.Y 80 26CO 18-Jan-79Union Spacing exception for TBU G-28 well.Y 80 25CO 31-Oct-78Union Spacing Exception for TBU No. D-25RD.Y 80 24CO 11-Jul-78Union Spacing Exception for TBU No. K-12RD.Y 80 23CO 11-May-78Union Spacing exception for TBU G-8RD Y 80 22CO 04-Apr-78Union Spacing Exception for TBU #K-2RD.Y 80 21CO 27-Dec-77Union Spacing exception for TBU D-7RD.Y 80 20CO 01-Dec-77Union Spacing Exception for TBU G-30.Y 80 19CO 12-Jul-76Union Spacing exception for TBU G-26 well.Y 80 18CO 15-Jun-76Union Spacing Exception for TBU D-29 well.Y 80 17CO 25-Mar-76Union Spacing exception for TBU D-28.Y 80 14CO 08-Mar-76Union Spacing Exception for TBU K-23.Y 80 16CO 08-Mar-76Union Spacing Exception for TBU K-24.Y 80 15CO 08-Mar-76Union Spacing Exception for TBU G-24.Y 80 13CO 21-Jul-75Union Spacing exception for TBU D-2ARD.Y 80 12CO 15-May-75Union Spacing exception for TBU K-21.Y 80 11CO 15-Apr-75Union Spacing Exception for TBU D-27.Y AAOrder No.DateOperator Description Current MCARTHUR RIVER FIELD *No Pool* Spacing Exception Orders 80 10CO 31-Jan-75Union Spacing Exception for TBU K-22.Y 80 9CO 23-Dec-74Union Spacing Exception for TBU G-23.Y 80 8CO 11-Oct-74Union Spacing exception for TBU K-10RD.Y 80 7CO 03-Jun-74Union Spacing exception for TBU D-8RD.Y 80 6CO 10-May-74Union Spacing Exception for TBU G-21.Y 80 5CO 02-May-74Union Spacing exception for TBU G-31.Y 80 3CO 06-Feb-74Union Spacing exception for TBU K-19.Y 80 4CO 06-Feb-74Union Spacing Exception for TBU D-26.Y 80 2CO 22-Jan-74Union Spacing Exception for TBU G-21.Y 80 1CO 11-May-73Union Spacing Exception for TBU K-18.Y 79 0CO 20-Aug-69Union Spacing exception for TBU K-20 well. MRF Y 24 0CO 28-Jun-66ARCO ALASKA Spacing exception for McArthur Rv St #1.N AAOrder No.DateOperator Description Current MCARTHUR RIVER FIELD *No Pool* Obsolete Orders 120 41CO 31-Aug-90UNION OIL CO Flaring excess gas from Grayling Pltfm until 09/10/90.N 95 20CO 12-Jun-90UNION OIL CO Flaring extended CO 095 to 07/01/91.N 95 19CO 21-Jun-89UNION OIL CO Flaring extended CO 095 to 07/01/90.N 120 40CO 22-Feb-89UNION OIL CO Flaring addl 45 excess flare days 1st qtr 1989 TB Prod Fac. If further excess required 1st qtr, AOGCC must meet w/parties to discuss probelm/solution. 120 39CO 22-Nov-88UNION OIL CO Flaring addl 51 excess flare days 4th qtr '88 TB Prod Fac.N 120 38CO 24-Oct-88UNION OIL CO Flaring addl 30 excess flare days 4th qtr '88 King Salmon Pltfm. N 120 37CO 24-Oct-88UNION OIL CO Flaring addl 26 excess flare days 4th qtr '88 TB Prod Fac.N 120 36CO 14-Oct-88UNION OIL CO Flaring addl 26 excess flare days - Grayling Pltfm.N 120 35CO 10-Sep-88UNION OIL CO Flaring additional 25 excess flare days 3rd cal qtr,'88 King Salmon Pltfm. N 120 34CO 19-Aug-88UNION OIL CO Flaring additional 15 excess flare days 3rd cal qtr,'88 King Salmon Pltfm. N 95 18CO 03-Jun-88UNION OIL CO Flaring entended CO 095 to 07/01/89.N 114 5CO 26-Feb-88UNION OIL CO Flaring to amend Item 9 to read "2500 MCF per day."N 120 33CO 18-Feb-88MARATHON OIL Flaring additional 10 excess flare days 1st cal qtr,'88 Dolly Vrdn Pltfm. N 120 32CO 04-Feb-88MARATHON OIL Flaring additional 10 excess flare days 1st cal qtr,'88 Dolly Vrdn Pltfm. N 120 31CO 29-Jan-88MARATHON OIL Flaring additional 10 excess flare days 1st cal qtr, Dolly Vrdn Pltfm. N 234 0CO 30-Oct-87UNION OIL CO Permits commingling fm Middle Kenai "G" & W Foreland Oil Pools. See CO 234A. N 120 30CO 14-Aug-87MARATHON OIL Flaring up to 15 MMSCF per day 08/11/87 to 09/25/87.N 114 4CO 14-Jul-87UNION OIL CO Flaring daily avg gas vol 1000 MCF flared on Steelhead Pltfm.N 95 17CO 16-Jun-87UNION OIL CO Flaring entended CO 095 to 07/01/88.N 95 16CO 05-Jun-86Union Flaring entended CO 095 to 07/01/87.N 95 15CO 01-Jul-85Union Flaring entended CO 095 to 07/01/86.N 120 29CO 05-Dec-84ARCO ALASKA Flaring requested for extension pursuant to CO 120 Rule 2, casinghead gas from McArthur Rv Oil Field, King Salmon Pltfm for more than 15 days per calendar qtr. N 120 28CO 01-Oct-84ARCO ALASKA Flaring requested for extension pursuant to CO 120 Rule 2,of casinghead gas from McArthur Rv Oil Field, King Salmon Pltfm for more than 15 days per canendar qtr. N 120 27CO 28-Jun-84MARATHON OIL Flaring requested pursuant to CO 120 Rule 2, of casinghead gas from Dolly Varden Platform for more than 15 days per calendar qtr. N 120 26CO 26-Jun-84ARCO ALASKA Flaring extended CO 120 Rule 2 of casinghead gas from King Salmon Platform for more then 15 days per calendar qtr. N 95 14CO 06-Jun-84Union Flaring entended CO 095 to 07/01/85.N 95 13CO 20-Jun-83Union Flaring 15 days per calendar 1/4. Mid-Kenai Gas Pool.N 95 12CO 23-Jun-82Union Flaring up to 15 days per calendar 1/4 operating.N 120 25CO 16-Mar-82ARCO ALASKA Flaring one day extension at King Salmon Platform.N 120 24CO 09-Mar-82ARCO ALASKA Flaring one day overflare at King Salmon Platform commpressor. N 120 23CO 04-Mar-82ARCO ALASKA Flaring two days overflare at King Salmon Platform for motor repair. N AAOrder No.DateOperator Description Current MCARTHUR RIVER FIELD *No Pool* Obsolete Orders 120 22CO 03-Feb-82ARCO ALASKA Flaring an extra 15 days for King Salmon Platform. Production of 18742 39 well. N 120 21CO 08-Dec-81ARCO ALASKA King Salmon Platform - Flaring extends CO 120 Rule 2, 5 days or until compressor is repaired. N 120 20CO 01-Dec-81ARCO ALASKA King Salmon Platform - Flaring extends CO 120 Rule 2, 6 days or until compressor is repaired. N 120 19CO 27-Nov-81Union Grayling Platform - Flaring extends CO 120 Rule 2, 6 days or until compressor is repaired. N 120 18CO 23-Nov-81ARCO ALASKA Flaring extends CO 120 Rule 2 for 5 days or until compressor is repaired, whichever is first, King Salmon Platform. N 120 17CO 21-Aug-81ARCO ALASKA Flaring an extra 7 days, King Salmon Platform for compressor repair. N 120 16CO 17-Aug-81ARCO ALASKA Flaring an extra 6 days, King Salmon Platform for commpressor repair. N 95 11CO 10-Jun-81Union Flaring up to 15 days per calendar 1/4 UNTIL 07/01/81.N 95 10CO 06-Jun-80Union Flaring gas up to 15 days per calendar 1/4 until 07/01/81.N 120 15CO 27-Mar-80ARCO ALASKA Flaring 5 extra days in 1st qtr King Salmon Platform, compressor repairs. N 120 14CO 26-Sep-79ARCO ALASKA Flaring excess for 5 days, King Salmon Platform N 120 13CO 19-Sep-79ARCO ALASKA Flaring excess permitted for 5 days.N 95 9CO 20-Aug-79Union Flaring gas up to 15 days per calendar 1/4 until 07/01/80.N 120 12CO 19-Mar-79ARCO ALASKA Flaring for remaining of qtr King Salmon Platform for longer than 15 days. N 120 11CO 28-Feb-79ARCO ALASKA Flaring extended on King Salmon Platform due to overhaul compressor for longer than 15 days per calendar qtr. N 120 10CO 30-Jun-78MARATHON OIL Flaring excess casinghead gas more than 15 days per calendar qtr Dolly Varden Platform N 120 9CO 29-Jun-78MARATHON OIL Flaring excess casinghead gas more than 15 days per calendar qtr Dolly Varden Platform N 95 8CO 27-Jun-78Union Flaring gas up to 15 days per calendar 1/4 until 07/01/79.N 120 8CO 08-May-78MARATHON OIL Flaring for 25 days in 2nd qtr, Dolly Varden Platform.N 120 7CO 01-May-78MARATHON OIL Flaring gas longer than 15 days per calendar qtr - Dolly Varden Platform. N 120 6CO 15-Feb-78ARCO ALASKA King Salmon compressor - Flaring until 03/01/78 for longer than 15 days per calander qtr. N 120 5CO 06-Feb-78MARATHON OIL Flaring more than 15 days per calendar qtr, Dolly Varden Platform. N 120 4CO 28-Dec-77ARCO ALASKA Flaring more than 15 days per calendar 1/4 King Salmon Platform. N 95 7CO 01-Jul-77Union Flaring gas well gas for up to 15 days per calendar 1/4 until 07/01/78. N 95 6CO 28-Jan-76Union Flaring extended CO 095 until 07/01/77.N 95 5CO 17-Jun-74Union Flaring extended CO 095 until 07/01/75.N 120 0CO 22-Aug-73UNION OIL CO Flaring until 09/01/73. Amends CO 103, permits up to 15 days flaring per canendar qtr; requires reports & gives admin powers. 3 POOLS N 95 4CO 29-Jun-73Union Flaring extended CO 095 until 07/01/74.N 120 3CO 31-May-73Union Flaring until 09/01/73.N 120 2CO 30-Apr-73Union Flaring extended until 06/01/73.N 120 1CO 23-Mar-73Union Flaring until 05/01/73.N AAOrder No.DateOperator Description Current MCARTHUR RIVER FIELD *No Pool* Obsolete Orders 104 1ACO 10-Oct-72Union Extends CO 104A to 11/01/72.N 95 0ACO 19-Jul-72Union Flaring extended CO 095 to 07/01/73.N 114 0CO 09-Jun-72Various Flaring restrictions Cook Inlet pltfms & shore facilities. Granite Pt, Trading Bay, McArthur River & MGS Fields. Flaring volume of gas established for safety flares at each pltfm & each shore site. 4 FIELDS N 104 0ACO 08-Jun-72Union Flaring until 11/01/72. Restricts flaring after 11/02/72.N 95 3CO 24-Feb-72Union Flaring extended CO 095 for five days.N 95 1CO 19-Oct-71Union Flaring extended CO 095 until 07/01/72.N 104 0CO 30-Jun-71Various Flaring restricted after 07/01/72 except for safety & emergencies. N 100 0CO 21-Apr-71UNION OIL CO Flaring permitted until 06/30/71. 4 FIELDS N 95 0CO 08-Oct-70Union Flaring gas lift gas permitted for 30 days in cases of operational necessity. Amends CO 080. N 94 0CO 27-Aug-70Union Flaring from TBU St K-20 until compressor repaired or 09/11/70.Amends CO 080. Two emergency orders also issued. N 90 0CO 12-Mar-70Union Emergency order permitting commingling of production.N 71 0CO 28-Mar-69Union REVOKED by CO 80. Defined Middle Kenai & Hemlock pools.N 61 0CO 10-May-68Union-Mobil Flaring be permitted on 120 day extension basis. Flaring be permitted on 120 day extension basis. Flaring permitted on 120-day extension basis. 3 FIELDS N AAOrder No.DateOperator Description Current MCARTHUR RIVER FIELD HEMLOCK OIL POOL Current Orders 52AIO 29-Mar-05UNION OIL CO Spacing Exception Grayling 40 (PTD 190-003).Y 63AIO 29-Mar-05UNION OIL CO Spacing exception Anna #5 (PTD 167-014).Y 53AIO 20-Mar-05UNION OIL CO Spacing Exception Grayling 40 (PTD 190-003).Y AAOrder No.DateOperator Description Current MCARTHUR RIVER FIELD MIDDLE KENAI GAS POOL Current Orders 228 2CO 02-Apr-90UNION OIL CO Repeals Rule 1b CO 080 as amended by CO 228; reenacts rule to define McArthur Rv Middle Kenai Gas Pool as equivalent to TBU K-2 btwn 1780' & 10128'. Y 228 1CO 12-May-88UNION OIL CO Amends CO 228 to add Rule 4 re auxiliary csg, cementing & blowout prev equipment. (This rule not in lieu of Rule 2a CO 080.) Y 228 0CO 17-Apr-87Union Amends CO 080 rule 1(b) Middle Kenai Gas Pool.Y AAOrder No.DateOperator Description Current MCARTHUR RIVER FIELD MIDDLE KENAI GAS POOL Spacing Exception Orders 228 6CO 28-Oct-03UNION OIL CO Spacing Exception to drill and complete the TBU M-16RD Middle Kenai Gas Pool. Y 228 5CO 07-Sep-01UNION OIL CO Spacing exception for well TBU M-12.Y 228 4CO 11-Sep-97UNION OIL CO Spacing exception for well Trading Bay Unit M-16.Y 228 3CO 22-Jul-96UNION OIL CO Spacing exception for well TBU M-3.Y 228 3CO 26-Sep-90UNION OIL CO Spacing exception for well TBU M-9.Y McArthur River, Middle Kenai Gas Pool Pool Summary Production from the Middle Kenai Gas Pool began in December 1968 from the Grayling Platform, followed shortly thereafter by production from the Dolly Varden and King Salmon Platforms.1 The initial production consisted of "wet" gas, which contains appreciable amounts of natural gas liquids produced in association with oil from the West Foreland, Hemlock and Middle Kenai G oil pools. Most of the associated gas produced from McArthur River prior to 1988 was not sold commercially; it was used to fuel lease operations and provide gas lift.2 In 1988, the Steelhead Platform was constructed to produce “dry” gas (methane) from the Grayling Gas Sands. 3 Production from the pool peaked at 225 billion cubic feet per day in November 1997. During December 2004, production from the platform averaged 92.5 million cubic feet per day.4 About 4% of the gas from this pool is now used for lease operations,5 and the remainder is sold commercially.6 The Middle Kenai Gas Pool is defined as the accumulation of gas common to, and correlative with, the accumulation found in the Marathon Trading Bay Unit wells between the measured depths of 1,518’ in well M-1 to 8,982’ in well M- 14.7 The Middle Kenai Gas Pool (also known as Grayling Gas Sands) is located within the Upper Middle Miocene Chuitna and Middle Ground Shoal members of the Tyonek Formation, which are part of the Kenai Group.8 The reservoir sands occur in a continuous sequence that contains the gas accumulations.9 As currently defined, the Middle Kenai Gas Pool consists of the Upper A series, Zones A through F, and the G-O series, which lies above the G Zone Oil Pool.10 In the vicinity of’ the Steelhead Platform, the non-marine sediments of the Middle Kenai Gas Pool were deposited in fluvial-alluvial meander belts. The sand/shale sequences within this portion of the Tyonek Formation are interbedded with distinctive coal layers, suggesting low energy, swamp-like conditions. Sand units are often conglomeratic, generally thin (20 to 50 feet thick), and may not persist laterally. Porosity ranges from 12 to 32 percent. The McArthur River Field structure is an asymmetric anticline that is oriented approximately north 20° east. The structure is cut by two normal faults that do not affect the limits of the hydrocarbon reservoirs.11 McArthur River original gas in place is estimated to be 1.35 TCF, with ultimate recovery placed at 1.15 TCF .12 As of January 2004, proven, unproduced reserves were forecast at 173 billion cubic feet.13 1 Alaska Oil and Gas Conservation Commission, 2005, Well and Production Information Database 2 State of Alaska Department of Administration, Office of Tax Appeals, 1991, Marathon Oil Company, Oil Production Tax, Amended Findings of Fact, Conclusions of Law and Order 1, online at http://www.state.ak.us/admin/ota/marathon.htm 3 State of Alaska Department of Administration, Office of Tax Appeals, 1991, Marathon Oil Company, Oil Production Tax, Amended Findings of Fact, Conclusions of Law and Order 1, online at http://www.state.ak.us/admin/ota/marathon.htm 4 Alaska Oil and Gas Conservation Commission, 2005, Well and Production Information Database 5 Thomas, C.P., Doughty, T.C., Faulder, D.D., and Hite, D.M., 2004, South-Central Alaska Natural Gas Study, U.S. Department of Energy, National Energy Technology Laboratory, Arctic Energy Office, Contract DE-AM26-99FT40575, p. 160. 6 State of Alaska Department of Administration, Office of Tax Appeals, 1991, Marathon Oil Company, Oil Production Tax, Amended Findings of Fact, Conclusions of Law and Order 1, online at http://www.state.ak.us/admin/ota/marathon.htm 7 Anderson, R.T., 1990, Trading Bay Unit, State of Alaska, Revised Conservation Orders Nos. 80 and 228; in Alaska Oil and Gas Conservation Commission, 1987, Conservation Order No. 228 File 8 UNOCAL, 1990, Engineering and Geologic Report, Exhibit A submitted in support of in expanding the Middle Kenai Gas Pool, Conservation Order No. 228 9 UNOCAL, 1990, Engineering and Geologic Report, Exhibit A submitted in support of in expanding the Middle Kenai Gas Pool, Conservation Order No. 228 10 UNOCAL, 1990, Engineering and Geologic Report, Exhibit A submitted in support of in expanding the Middle Kenai Gas Pool, Conservation Order No. 228 11 UNOCAL, 1990, Engineering and Geologic Report, Exhibit A submitted in support of in expanding the Middle Kenai Gas Pool, Conservation Order No. 228 12 Thomas, C.P., Doughty, T.C., Faulder, D.D., and Hite, D.M., 2004, South-Central Alaska Natural Gas Study, U.S. Department of Energy, National Energy Technology Laboratory, Arctic Energy Office, Contract DE-AM26-99FT40575, p. 166. 13 Thomas, C.P., Doughty, T.C., Faulder, D.D., and Hite, D.M., 2004, South-Central Alaska Natural Gas Study, U.S. Department of Energy, National Energy Technology Laboratory, Arctic Energy Office, Contract DE-AM26-99FT40575, p. 62. McArthur R. Mid Kenai Gas Pool 048121620Gas WellsMCARTHUR RIVER FIELD, MIDDLE KENAI GAS POOL1510501005001000500010000Cum Gas Prod ( MMMcf )Cum Water Prod ( Mbbl )MCARTHUR RIVER FIELD, MIDDLE KENAI GAS POOL1968 69 70 71 72 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 03 040.10.51510501005001000Gas Rate (CD) ( MMcf/d )Water Rate (CD) ( bbl/d )MCARTHUR RIVER FIELD, MIDDLE KENAI GAS POOL