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HomeMy WebLinkAboutOil-Kuparuk-WSakAlaska Oil and Gas Conservation Commisssion - Pool Statistics, Unit and Pool Home Orders Staff Calendar Contact Us AOGCC Pool Statistics Kuparuk River Unit, W Sak Oil Pool Alaska Oil and Gas Conservation Commission > Annual Reports > Pool Statistics - 2004: Updated 12 Sep 2005 Page: 1 > 2 > 3 Operator: ConocoPhillips Alaska, Inc. Discovery Well: ARCO Alaska Inc. West Sak River State No. 1 Permit #171-003 API No. 50-029-20009-00-00 Sec. 2, T11N, R10E, UM Depth: 10,290’ MD / 10,290' TVD April 26, 1971 Status: Producing Location: Central Arctic Slope Area Location Map PA Location Map DNR Unit Map Orders: Complete List Summary: The West Sak Oil Pool is located largely within the boundaries of the Kuparuk River Unit (“KRU”), but it laps over into the Milne Point Unit to the NE and extends to the south, beyond the boundary of the KRU. The West Sak Oil Pool is currently developed from four pads (KRU 1B, 1C, 1D, and 1E), and it has produced continuously since December 1997. West Sak oil production within the KRU has climbed steadily from the initial monthly average of 19 barrels of oil per day (“BOPD”) to approximately 9,300 BOPD during the first 8 months of 2004. During September 2004, West Sak oil production abruptly jumped to its current level of 17,000 BOPD when several new wells were brought on line. In December 2004, production from the West Sak Pool averaged 17,072 BOPD from 31 wells. This tremendous pool occurs within the Late Cretaceous-aged Schrader Bluff Formation ("Schrader Bluff"). It is defined as the accumulation of hydrocarbons common to and correlating with the interval between 3,742' and 4,156' measured depths in the West Sak No. 1 well. It lies at depths ranging from about 3,000’ to 4,500’ true vertical depth subsea. West Sak oil is characterized by biodegradation, with API gravities that vary from 22 degrees in the deeper, eastern part of the KRU to 10 degrees in the shallower western side of the Kuparuk River Unit. ARCO Alaska Inc. conducted a pilot production test of the West Sak sands from September 1983 to December of 1986. A total of 16 wells were drilled and completed: 9 producers and 7 injectors. The test ultimately produced 755,062 barrels of oil, 326 MCF of gas and 2.12 million barrels of water. During 1986, the pilot test produced at an average daily rate of 821 barrels of oil, 297 MCF gas and 2,966 barrels of water from between 8 and 9 production wells. Original oil in place (“OOIP”) within the Kuparuk River Unit is estimated to be is about 15 to 16 billion barrels. Strat Column Type Log Type Log Data Orig. Oil in Place: 15 to 16 Billion STB (Petroleum News Alaska, Volume 10, No. 2, p. 11) Production: Prod Chart Prod Report Prod Spread Prod Data Oil (bbls) NGL (bbls) Gas (mcf) Water (bbls) Cumulative 15,625,750 0 5,257,960 5,181,635 2001 Total 1,997,991 0 428,875 210,106 2002 Total 2,472,498 0 635,063 469,478 2003 Total 2,848,408 0 808,602 766,127 2004 Total 4,280,641 0 2,069,357 1,034,800 2003 Daily Rate 7,804 0 2,215 2,099 2004 Daily Rate 11,696 0 5,654 2,827 http://www.state.ak.us/local/akpages/ADMIN/ogc...uparuk%20River,%20West%20Sak%20Oil/1_Oil_1.htm (1 of 2) [3/28/2008 4:59:33 PM] Alaska Oil and Gas Conservation Commisssion - Pool Statistics, Unit and Pool Change (%)50%0 155%35% Continued: 1 > 2 > 3 Home Orders Staff Calendar Contact Us Webmaster http://www.state.ak.us/local/akpages/ADMIN/ogc...uparuk%20River,%20West%20Sak%20Oil/1_Oil_1.htm (2 of 2) [3/28/2008 4:59:33 PM] Alaska Oil and Gas Conservation Commisssion - Pool Statistics, Unit and Pool Home Orders Staff Calendar Contact Us AOGCC Pool Statistics Kuparuk River Unit, W Sak 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 Chart Report Data Gas (Mcf)Water Disposed Fluids Cumulative 291,982 27,325,443 Cumulative 20,085,168 2001 Total 0 3,057,209 2001 Total 714,325 2002 Total 0 5,044,991 2002 Total 468,872 2003 Total 170,839 6,167,561 2003 Total 552,674 2004 Total 121,143 7,201,485 2004 Total 684,182 2003 Rate (per day) 468 16,897 2003 Rate (per day) 1,514 2004 Rate (per day) 332 19,730 2004 Rate (per day) 1,874 Change (%) -29% 17%Change (%) 24% Field Development Information: Wells In Field Type Well Status 2004 2003 2002 2001 2000 Producer Oil Producer 619 593 573 556 541 Injector Water Injector 149 156 167 203 201 Gas Injector 0 0 3 3 7 WAG Injector 333 319 295 237 221 Observation 1 1 1 1 1 Disposal 15 15 15 15 15 Non-Operating Suspended 8 10 13 9 9 Abandoned 152 143 134 127 121 Total 1277 1237 1201 1151 1125 Active Completions in Pool (Month of December): Type Well Status 2004 2003 2002 2001 2000 Oil Producer Flowing 9 20 19 22 20 Gas Lift 7 1 3 0 0 Pump 15 4 1 1 0 Shut-In 5 4 3 2 2 Service Well Water Injector 22 21 22 21 15 Gas Injector 0 0 0 0 0 WAG Injector 3 5 1 0 0 Water Supply 0 0 0 0 0 Shut-In 6 6 6 1 0 Disposal Undef.Disposal Injector 1 1 1 2 1 Shut-In 14 13 13 12 13 Total 82 75 69 61 51 Continued: 1 > 2 > 3 Home Orders Staff Calendar Contact Us Webmaster http://www.state.ak.us/local/akpages/ADMIN/ogc/ann...il/Kuparuk%20River,%20West%20Sak%20Oil/1_Oil_2.htm [3/28/2008 4:59:43 PM] Alaska Oil and Gas Conservation Commisssion - Pool Statistics, Unit and Pool Home Orders Staff Calendar Contact Us AOGCC Pool Statistics Kuparuk River Unit, W Sak 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 11 19 9 24 22 Sidetrack 7 3 5 5 10 Multilateral 16 5 1 2 3 Service New 6 11 6 15 11 Sidetrack 1 3 0 1 6 Multilateral 6 0 0 0 0 Exploration New 1 0 2 0 0 Sidetrack 0 0 0 1 0 Total 48 41 23 48 52 Reservoir Properties: Description 2004 2003 2002 2001 2000 Reference Datum - ft. below sea level 3500 3500 3500 3500 3500 Temperature - ° F 75 75 75 75 75 Porosity - % 30 30 30 30 30 Permeability - md 15-2000 15-2000 15-2000 15-2000 15-2000 Swi - % 30 30 30 30 30 Oil Viscosity @ Orig. Press. cp 42 42@1526 42@1526 42@1526 42@1526 Oil Viscosity @ Sat. Press. cp ----- Orig. Press. - psi 1000-1600 1000-1600 1000-1600 1000-1600 1000-1600 Bubble Point - psi 1526 1526 1526 1526 1526 Current Reservoir Press. - psi 1650 1650 1500 1475 1475 Oil Gravity - ° API 17-21 17-21 17-21 17-21 17-21 Gas Specific Gravity (Air = 1.0).6 .6 .6 .6 .6 Gross Pay - ft.300-500 300-500 300-500 300-500 300-500 Net Pay - ft.20-120 20-120 20-120 20-120 20-120 Orig. FVF - RB/STB 1.06-1.08 1.06-1.08 1.06-1.08 1.06-1.08 1.06-1.08 Bubble Point FVF - RB/STB ----- Orig. GOR - SCF/STB 117-220 117-220 117-220 117-220 117-220 GOR (current yr.) - SCF/STB 482 412 175 204 311 References / Summary Continued: 1 > 2 > 3 Home Orders Staff Calendar Contact Us Webmaster http://www.state.ak.us/local/akpages/ADMIN/ogc/ann...il/Kuparuk%20River,%20West%20Sak%20Oil/1_Oil_3.htm [3/28/2008 4:59:52 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 KUPARUK RIVER, WEST SAK OIL Pool Jan 1995 Dec 2004Through KRU_1B Nov 2003 12507 2836 574011 1 Dec 2003 53755 33149 295831 1 Jan 2004 51015 53285 3131 1 Feb 2004 27561 39499 2929 1 Mar 2004 40428 32387 9231 1 Apr 2004 28868 39367 3028 1 May 2004 30094 47927 3131 1 Jun 2004 24193 21227 3030 1 Jul 2004 16793 25071 2728 1 Aug 2004 16015 14350 144021 1 Sep 2004 29070 24147 31130 1 Oct 2004 32890 28814 3131 1 Nov 2004 25173 27912 3030 1 Dec 2004 22314 29954 39731 1 410676 419925 11177Pad Total KRU_1C Nov 2001 3984 380 9579 1 Dec 2001 53775 15372 160384 3 Jan 2002 41811 29567 78693 3 Feb 2002 34649 20908 112384 3 Mar 2002 37521 26588 99793 3 Apr 2002 32638 21702 40990 3 May 2002 45539 20890 151399 4 Jun 2002 38549 22766 8128110 4 Jul 2002 42373 22367 14239124 4 Aug 2002 33087 19952 16623111 4 Sep 2002 47503 24478 20373108 5 Oct 2002 66359 33786 18563129 5 Nov 2002 58912 20309 136888 4 Dec 2002 64515 12348 89993 4 Jan 2003 57737 13609 87993 4 Feb 2003 44573 21718 110984 4 Mar 2003 48537 15259 30791116 5 Apr 2003 49076 11724 38836120 5 May 2003 61959 14381 15982132 6 Jun 2003 105895 23473 17511138 6 Jul 2003 112798 45366 11433142 7 Aug 2003 98185 50871 11084124 6 Sep 2003 89202 47301 10919137 7 Oct 2003 147973 89572 16952191 8 Nov 2003 119185 65114 10382172 7 Dec 2003 131931 67233 6422205 7 Jan 2004 112889 58778 12956180 8 Feb 2004 114306 68543 19955201 8 Mar 2004 139781 57730 10060217 8 Apr 2004 113780 41768 9087220 8 May 2004 110618 56795 12560234 8 Jun 2004 102409 25048 9523194 8 1/27/2005 Page 1 of 4 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells KUPARUK RIVER, WEST SAK OIL Pool Jan 1995 Dec 2004Through Jul 2004 95576 22256 6228205 8 Aug 2004 71096 11567 5684122 8 Sep 2004 92506 16336 8674201 8 Oct 2004 94096 19396 14104215 8 Nov 2004 100317 15101 25051210 8 Dec 2004 113674 16819 24096217 8 2929314 1167171 417859Pad Total KRU_1D Dec 1997 579 271 15686 1 Jan 1998 12787 8017 208262 3 Feb 1998 24537 14524 2178109 6 Mar 1998 42627 23960 13595179 6 Apr 1998 44624 23793 28257223 8 May 1998 60372 26183 26844248 8 Jun 1998 54446 22778 22847238 8 Jul 1998 59623 21061 14265237 8 Aug 1998 54246 19450 12497223 8 Sep 1998 45497 7399 12232188 8 Oct 1998 44705 10794 13079186 8 Nov 1998 55488 10512 17596236 9 Dec 1998 64724 16362 23978310 12 Jan 1999 80379 23569 15717347 12 Feb 1999 71529 31583 14042323 14 Mar 1999 87520 36842 14869384 16 Apr 1999 110524 45112 14359443 17 May 1999 114433 44275 18253473 17 Jun 1999 109496 39576 16431458 17 Jul 1999 106640 36541 17501458 17 Aug 1999 104936 32615 18191447 17 Sep 1999 98137 27088 17406420 17 Oct 1999 93983 23612 16756438 17 Nov 1999 101949 22237 16686465 17 Dec 1999 107729 22355 14944468 17 Jan 2000 111275 23460 19336465 17 Feb 2000 101139 20030 16203432 17 Mar 2000 122304 24440 16752463 17 Apr 2000 116228 24316 15285437 17 May 2000 106976 24719 15191429 17 Jun 2000 106259 27100 15255500 17 Jul 2000 105733 26102 13593521 19 Aug 2000 135235 35233 12626562 20 Sep 2000 118033 36508 10214538 20 Oct 2000 146469 46305 16378569 21 Nov 2000 165432 53503 17515596 22 Dec 2000 184557 57367 16667600 22 Jan 2001 173899 53375 15928595 22 Feb 2001 152847 42651 13979545 22 Mar 2001 177492 40806 19466635 22 Apr 2001 162112 34496 14900600 22 May 2001 178347 37384 17602642 22 1/27/2005 Page 2 of 4 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells KUPARUK RIVER, WEST SAK OIL Pool Jan 1995 Dec 2004Through Jun 2001 172576 31631 18837620 22 Jul 2001 175203 33414 20128622 22 Aug 2001 171576 33394 19888633 22 Sep 2001 155063 29344 19300602 22 Oct 2001 132444 25075 15796572 21 Nov 2001 131974 23795 16412532 22 Dec 2001 156699 27758 15310560 22 Jan 2002 152982 27545 14498574 22 Feb 2002 141996 28357 16583507 22 Mar 2002 165468 35365 21906597 22 Apr 2002 183556 39022 34019636 22 May 2002 188697 42196 37111637 22 Jun 2002 175886 33184 40623602 21 Jul 2002 156254 27564 37110546 21 Aug 2002 151190 24104 33717573 21 Sep 2002 154035 22015 35563537 21 Oct 2002 182049 31045 40175621 21 Nov 2002 129854 24269 34878571 21 Dec 2002 147075 24736 38274589 21 Jan 2003 153151 23250 49341576 21 Feb 2003 146372 25818 41419535 21 Mar 2003 142875 27207 58168567 21 Apr 2003 160517 30865 58304574 21 May 2003 165829 28836 49044605 21 Jun 2003 159191 29271 51896569 21 Jul 2003 146215 23349 52230560 21 Aug 2003 155694 25869 57347559 21 Sep 2003 165149 29426 51720586 21 Oct 2003 118030 19369 30856511 21 Nov 2003 81213 18562 19801396 21 Dec 2003 120859 25174 65003492 21 Jan 2004 122820 19093 60886503 21 Feb 2004 128599 22144 67333496 21 Mar 2004 139545 25047 79273527 21 Apr 2004 143295 19537 66696510 21 May 2004 127259 17755 57996507 21 Jun 2004 137882 19652 66274503 21 Jul 2004 148566 25058 77148524 21 Aug 2004 119556 18925 57539483 21 Sep 2004 122476 16809 59831497 21 Oct 2004 136425 24084 94898508 21 Nov 2004 135389 25547 102891493 21 Dec 2004 133845 41139 78804475 21 10451176 2343903 2617889Pad Total KRU_1E Sep 2004 142948 82026 30243 2 Oct 2004 240854 174862 121985 3 Nov 2004 246691 313737 1599106 4 Dec 2004 231420 257699 1898125 5 1/27/2005 Page 3 of 4 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBLDaysProd Wells KUPARUK RIVER, WEST SAK OIL Pool Jan 1995 Dec 2004Through 861913 828324 5018Pad Total 14,653,079 4,759,323 3,051,943Pool Total 1/27/2005 Page 4 of 4 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing KUPARUK RIVER, WEST SAK OIL Pool Jan 1958 Dec 2004 Jun 1983 338 3552 07 1 Sep 1983 629 215 015 1 Oct 1983 875 379 024 1 Nov 1983 713 458 018 2 Dec 1983 3463 862 057 3 6018 5466 0Year Total Jan 1984 3680 781 034 3 Feb 1984 732 146 023 2 Mar 1984 5459 1092 038 2 Apr 1984 1438 288 013 2 May 1984 3494 21395 055 6 Jun 1984 5479 1096 054 3 Jul 1984 4853 1966 052 4 Aug 1984 4385 877 029 2 Sep 1984 9047 3805 12008125 9 Oct 1984 27899 18123 58125269 9 Nov 1984 28932 14838 53072270 9 Dec 1984 28277 14597 44394273 9 123675 79004 167599Year Total Jan 1985 26014 12766 265196 8 Feb 1985 27015 11601 39234250 9 Mar 1985 30844 15116 72019279 9 Apr 1985 28916 13460 66803248 9 May 1985 27768 12025 83735245 9 Jun 1985 27685 10079 82576231 8 Jul 1985 28607 10328 79602226 8 Aug 1985 26965 8633 68868244 9 Sep 1985 26440 8460 61835231 9 Oct 1985 25776 10135 158333246 9 Nov 1985 24523 10040 84840232 9 Dec 1985 25248 11066 79225236 8 325801 133709 877335Year Total Jan 1986 26251 11605 80836240 8 Feb 1986 22824 9479 68700217 8 Mar 1986 24555 10116 88273249 9 Apr 1986 24317 9403 57806258 9 May 1986 16549 6645 6128177 8 Jun 1986 20302 7101 87375212 9 Jul 1986 30055 10958 172970277 9 Aug 1986 27267 8808 143067265 9 Sep 1986 27881 8266 96802255 9 Oct 1986 28098 9725 96093248 8 Nov 1986 25775 9322 91299234 8 Dec 1986 25694 6864 95653228 8 299568 108292 1085002Year Total Dec 1997 579 271 15686 1 579 271 1568Year Total 9/23/2005 Page 1 of 4 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing KUPARUK RIVER, WEST SAK OIL Pool Jan 1958 Dec 2004 Jan 1998 12787 8017 208262 3 Feb 1998 24537 14524 2178109 5 Mar 1998 42627 23960 13595179 6 Apr 1998 44624 23793 28257223 8 May 1998 60372 26183 26844248 8 Jun 1998 54446 22778 22847238 8 Jul 1998 59623 21061 14265237 8 Aug 1998 54246 19450 12497223 8 Sep 1998 45497 7399 12232188 8 Oct 1998 44705 10794 13079186 6 Nov 1998 55488 10512 17596236 9 Dec 1998 64724 16362 23978310 12 563676 204833 189450Year Total Jan 1999 80379 23569 15717347 12 Feb 1999 71529 31583 14042323 13 Mar 1999 87520 36842 14869384 13 Apr 1999 110524 45112 14359443 17 May 1999 114433 44275 18253473 17 Jun 1999 109496 39576 16431458 17 Jul 1999 106640 36541 17501458 15 Aug 1999 104936 32615 18191447 15 Sep 1999 98137 27088 17406420 14 Oct 1999 93983 23612 16756438 17 Nov 1999 101949 22237 16686465 16 Dec 1999 107729 22355 14944468 16 1187255 385405 195155Year Total Jan 2000 111275 23460 19336465 15 Feb 2000 101139 20030 16203432 15 Mar 2000 122304 24440 16752463 16 Apr 2000 116228 24316 15285437 16 May 2000 106976 24719 15191429 15 Jun 2000 106259 27100 15255500 17 Jul 2000 105733 26102 13593521 19 Aug 2000 135235 35233 12626562 19 Sep 2000 118033 36508 10214538 19 Oct 2000 146469 46305 16378569 19 Nov 2000 165432 53503 17515596 21 Dec 2000 184557 57367 16667600 20 1519640 399083 185015Year Total 9/23/2005 Page 2 of 4 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing KUPARUK RIVER, WEST SAK OIL Pool Jan 1958 Dec 2004 Jan 2001 173899 53375 15928595 20 Feb 2001 152847 42651 13979545 20 Mar 2001 177492 40806 19466635 22 Apr 2001 162112 34496 14900600 21 May 2001 178347 37384 17602642 21 Jun 2001 172576 31631 18837620 21 Jul 2001 175203 33414 20128622 22 Aug 2001 171576 33394 19888633 22 Sep 2001 155063 29344 19300602 21 Oct 2001 132444 25075 15796572 19 Nov 2001 135958 24175 17369541 21 Dec 2001 210474 43130 16913644 23 1997991 428875 210106Year Total Jan 2002 194793 57112 15284667 22 Feb 2002 176645 49265 17706591 23 Mar 2002 202989 61953 22903690 23 Apr 2002 216194 60724 34428726 25 May 2002 234236 63086 38624736 25 Jun 2002 214435 55950 48751712 25 Jul 2002 198627 49931 51349670 24 Aug 2002 184277 44056 50340684 24 Sep 2002 201538 46493 55936645 24 Oct 2002 248408 64831 58738750 26 Nov 2002 188766 44578 36246659 25 Dec 2002 211590 37084 39173682 22 2472498 635063 469478Year Total Jan 2003 210888 36859 50220669 23 Feb 2003 190945 47536 42528619 23 Mar 2003 191412 42466 88959683 23 Apr 2003 209593 42589 97140694 25 May 2003 227788 43217 65026737 25 Jun 2003 265086 52744 69407707 24 Jul 2003 259013 68715 63663702 25 Aug 2003 253879 76740 68431683 23 Sep 2003 254351 76727 62639723 26 Oct 2003 266003 108941 47808702 26 Nov 2003 212905 86512 35923579 22 Dec 2003 306545 125556 74383728 25 2848408 808602 766127Year Total 9/23/2005 Page 3 of 4 State of Alaska, Oil and Gas Conservation Commission Production History for: Month Oil (BBL)Gas (MCF)Water (BBL)DaysProd Wells Producing KUPARUK RIVER, WEST SAK OIL Pool Jan 1958 Dec 2004 Jan 2004 286724 131156 73873714 25 Feb 2004 270466 130186 87317726 26 Mar 2004 319754 115164 89425775 26 Apr 2004 285943 100672 75813758 26 May 2004 267971 122477 70587772 26 Jun 2004 264484 65927 75827727 25 Jul 2004 306715 85131 83547774 26 Aug 2004 265587 95708 64701656 23 Sep 2004 426814 193853 69158801 28 Oct 2004 529306 270626 110282870 29 Nov 2004 532643 394549 129768869 31 Dec 2004 524234 363908 104502879 31 4280641 2069357 1034800Year Total 15,625,750 5,257,960 5,181,635Pool Total 9/23/2005 Page 4 of 4 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 KUPARUK RIVER, WEST SAK OIL Pool Sep 1984 11217 045 5 Oct 1984 57918 0155 5 Nov 1984 42897 0120 4 Dec 1984 44051 0141 5 Year Total 156083 0 Feb 1985 37993 0118 5 Mar 1985 70491 0152 5 Apr 1985 65755 0150 5 May 1985 82216 0155 5 Jun 1985 80665 0150 5 Jul 1985 76882 0148 5 Aug 1985 64444 0127 5 Sep 1985 57801 0121 5 Oct 1985 77699 0153 5 Nov 1985 79272 0123 5 Dec 1985 72067 0124 4 Year Total 765285 0 Jan 1986 71132 0124 4 Feb 1986 59046 091 4 Mar 1986 72481 0131 5 Apr 1986 37634 090 5 Jun 1986 79060 0125 5 Jul 1986 137420 0155 5 Aug 1986 112261 0155 5 Sep 1986 77261 0136 5 Oct 1986 76624 0124 4 Nov 1986 70596 0120 4 Dec 1986 70623 0119 4 Year Total 864138 0 Jan 1998 3428 091 Feb 1998 18440 028 1 Mar 1998 38833 031 1 Apr 1998 34554 037 2 May 1998 61500 083 3 Jun 1998 58528 090 3 Jul 1998 60088 0103 5 Aug 1998 101926 0146 5 Sep 1998 88002 0142 5 Oct 1998 95192 0155 5 Nov 1998 103912 0150 5 Dec 1998 101567 0155 5 Year Total 765970 0 2/2/2005 Page 1 of 3 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting KUPARUK RIVER, WEST SAK OIL Pool Jan 1999 97441 0153 5 Feb 1999 105858 0140 5 Mar 1999 93775 0157 7 Apr 1999 123643 0240 8 May 1999 148126 0300 10 Jun 1999 143706 0273 10 Jul 1999 166664 0279 9 Aug 1999 170908 0279 9 Sep 1999 161354 0270 9 Oct 1999 157720 0279 9 Nov 1999 159778 0270 9 Dec 1999 157646 0279 9 Year Total 1686619 0 Jan 2000 168830 0279 9 Feb 2000 144155 0261 9 Mar 2000 136046 0254 9 Apr 2000 83245 0173 8 May 2000 32726 070 4 Jun 2000 27073 060 5 Jul 2000 97145 0155 5 Aug 2000 151704 0239 8 Sep 2000 159114 0300 11 Oct 2000 190890 0335 13 Nov 2000 212129 0392 14 Dec 2000 213045 0465 15 Year Total 1616102 0 Jan 2001 253459 0475 17 Feb 2001 239212 0476 17 Mar 2001 278951 0527 17 Apr 2001 265049 0510 17 May 2001 216923 0527 17 Jun 2001 237893 0500 17 Jul 2001 247825 0521 17 Aug 2001 249646 0527 17 Sep 2001 249908 0510 17 Oct 2001 244052 0495 16 Nov 2001 237382 0477 16 Dec 2001 336909 0572 21 Year Total 3057209 0 2/2/2005 Page 2 of 3 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting KUPARUK RIVER, WEST SAK OIL Pool Jan 2002 418305 0682 22 Feb 2002 287641 0496 22 Mar 2002 325949 0492 19 Apr 2002 382772 0497 18 May 2002 481950 0530 19 Jun 2002 268599 0448 16 Jul 2002 338544 0562 23 Aug 2002 477463 0709 24 Sep 2002 525977 0701 24 Oct 2002 544822 0709 23 Nov 2002 480757 0646 23 Dec 2002 512212 0665 23 Year Total 5044991 0 Jan 2003 529689 0712 23 Feb 2003 474520 0658 24 Mar 2003 437080 0747 25 Apr 2003 400414 0734 25 May 2003 417937 0765 25 Jun 2003 486329 0753 27 Jul 2003 524309 0784 27 Aug 2003 647532 0837 27 Sep 2003 514839 8915850 29 Oct 2003 528989 90094855 29 Nov 2003 529434 71830752 27 Dec 2003 676489 0804 26 Year Total 6167561 170839 Jan 2004 697461 0831 29 Feb 2004 623285 2789841 29 Mar 2004 548147 28035877 29 Apr 2004 571599 21506840 28 May 2004 572023 20976841 28 Jun 2004 549294 18213825 28 Jul 2004 506958 16072786 28 Aug 2004 541124 13552799 27 Sep 2004 749440 0837 29 Oct 2004 716899 0844 29 Nov 2004 572788 0761 28 Dec 2004 552467 0775 25 Year Total 7201485 121143 Pool Total 27,325,443 291,982 2/2/2005 Page 3 of 3 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting KUPARUK RIVER, CRETACEO U WDSP Pool Apr 1982 18024 030 1 May 1982 14292 023 1 Jun 1982 12643 030 1 Jul 1982 15259 031 1 Aug 1982 22348 030 1 Sep 1982 27175 031 1 Oct 1982 13731 030 1 Nov 1982 2895 030 1 Dec 1982 825 031 1 Year Total 127192 0 Jan 1983 2004 031 1 Feb 1983 6549 028 1 Mar 1983 8846 031 1 Apr 1983 18223 030 1 May 1983 39076 031 1 Jun 1983 48507 030 1 Jul 1983 49670 031 1 Aug 1983 57968 031 1 Sep 1983 91688 030 1 Oct 1983 104766 031 1 Nov 1983 85334 030 1 Dec 1983 92638 031 1 Year Total 605269 0 Jan 1984 99362 031 1 Feb 1984 101283 029 1 Mar 1984 123472 031 1 Apr 1984 169478 030 1 May 1984 221495 031 1 Jun 1984 209499 030 1 Jul 1984 213715 031 1 Nov 1984 9933 030 1 Year Total 1148237 0 Jun 1986 92314 060 2 Jul 1986 65039 045 2 Aug 1986 78742 045 2 Sep 1986 22721 033 2 Oct 1986 2994 091 Nov 1986 181 021 Dec 1986 1466 031 Year Total 263457 0 1/31/2005 Page 1 of 7 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting KUPARUK RIVER, CRETACEO U WDSP Pool Jan 1987 23209 035 2 Feb 1987 19867 031 2 Mar 1987 25900 040 2 Apr 1987 19308 040 2 May 1987 21848 051 2 Jun 1987 41421 043 2 Jul 1987 45896 052 2 Aug 1987 30063 045 2 Sep 1987 60763 040 2 Oct 1987 14935 042 2 Nov 1987 35988 053 2 Dec 1987 21397 042 2 Year Total 360595 0 Jan 1988 27173 031 1 Feb 1988 20692 029 1 Mar 1988 19351 031 1 Apr 1988 17864 030 1 May 1988 21209 030 1 Jun 1988 70768 053 3 Jul 1988 42991 031 1 Aug 1988 42437 030 1 Sep 1988 61179 039 2 Oct 1988 22197 029 1 Nov 1988 11650 024 1 Dec 1988 15287 027 1 Year Total 372798 0 Jan 1989 19062 028 1 Feb 1989 16832 023 1 Mar 1989 18471 029 1 Apr 1989 38398 030 1 May 1989 49183 031 1 Jun 1989 59425 030 1 Jul 1989 28335 031 1 Aug 1989 52219 039 2 Sep 1989 75356 030 1 Oct 1989 36890 031 1 Nov 1989 24224 028 1 Dec 1989 25380 031 1 Year Total 443775 0 1/31/2005 Page 2 of 7 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting KUPARUK RIVER, CRETACEO U WDSP Pool Jan 1990 24735 031 1 Feb 1990 28980 025 1 Mar 1990 35995 030 1 Apr 1990 35585 030 1 May 1990 130943 055 9 Jun 1990 1143291 0270 9 Jul 1990 396686 0135 9 Aug 1990 84540 031 1 Sep 1990 49185 030 1 Oct 1990 27690 028 1 Nov 1990 20950 030 1 Dec 1990 23850 030 1 Year Total 2002430 0 Jan 1991 31265 037 2 Feb 1991 24588 031 2 Mar 1991 37067 042 2 Apr 1991 36158 036 3 May 1991 40144 030 1 Jun 1991 833116 0261 9 Jul 1991 1032021 0283 10 Aug 1991 135310 079 10 Sep 1991 72725 058 2 Oct 1991 56607 060 3 Nov 1991 47655 059 2 Dec 1991 63261 061 3 Year Total 2409917 0 Jan 1992 58821 063 3 Feb 1992 79120 087 4 Mar 1992 130882 0120 4 Apr 1992 113728 0114 4 May 1992 70386 069 4 Jun 1992 1246638 0290 11 Jul 1992 230965 0100 10 Aug 1992 32712 031 1 Sep 1992 34181 028 1 Oct 1992 28891 031 1 Nov 1992 21260 028 1 Dec 1992 42818 048 2 Year Total 2090402 0 1/31/2005 Page 3 of 7 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting KUPARUK RIVER, CRETACEO U WDSP Pool Jan 1993 65534 066 3 Feb 1993 96858 080 3 Mar 1993 92664 086 3 Apr 1993 103002 064 3 May 1993 80928 059 2 Jun 1993 742848 0189 9 Jul 1993 648729 0157 9 Aug 1993 26195 027 2 Sep 1993 44602 045 2 Oct 1993 30627 028 2 Nov 1993 45721 039 2 Dec 1993 40465 038 2 Year Total 2018173 0 Jan 1994 26877 028 2 Feb 1994 46530 048 3 Mar 1994 56629 057 3 Apr 1994 52519 053 2 May 1994 37390 031 1 Jun 1994 809031 0177 9 Jul 1994 963869 0197 8 Aug 1994 21040 027 1 Sep 1994 16845 022 1 Oct 1994 16275 024 1 Nov 1994 13520 020 1 Dec 1994 45933 049 2 Year Total 2106458 0 Jan 1995 45473 051 3 Feb 1995 36906 037 2 Mar 1995 34570 042 2 Apr 1995 24815 038 2 May 1995 20496 029 2 Jun 1995 212537 077 5 Jul 1995 15060 020 1 Aug 1995 76102 034 4 Sep 1995 17520 027 2 Oct 1995 15288 020 2 Nov 1995 21755 025 2 Dec 1995 46863 051 2 Year Total 567385 0 1/31/2005 Page 4 of 7 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting KUPARUK RIVER, CRETACEO U WDSP Pool Jan 1996 31187 031 2 Feb 1996 41157 044 3 Mar 1996 39553 049 2 Apr 1996 46355 047 2 May 1996 25341 027 1 Jun 1996 22318 025 2 Jul 1996 27346 030 2 Aug 1996 131324 048 4 Sep 1996 26263 022 1 Oct 1996 8503 062 Nov 1996 12139 091 Dec 1996 37944 031 3 Year Total 449430 0 Jan 1997 27016 043 2 Feb 1997 37282 042 3 Mar 1997 46553 049 3 Apr 1997 35423 035 2 May 1997 31119 031 3 Jun 1997 49049 036 2 Jul 1997 53566 041 2 Aug 1997 19620 030 2 Sep 1997 195492 035 6 Oct 1997 40484 036 2 Nov 1997 60432 046 2 Dec 1997 76538 050 2 Year Total 672574 0 Jan 1998 58560 048 2 Feb 1998 50144 044 3 Mar 1998 71032 043 2 Apr 1998 78197 050 3 May 1998 48338 050 2 Jun 1998 75187 052 3 Jul 1998 38424 043 2 Aug 1998 69453 043 6 Sep 1998 126422 057 6 Oct 1998 62825 049 2 Nov 1998 43230 042 2 Dec 1998 86379 049 2 Year Total 808191 0 1/31/2005 Page 5 of 7 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting KUPARUK RIVER, CRETACEO U WDSP Pool Jan 1999 60899 048 2 Feb 1999 27979 027 1 Mar 1999 54647 039 2 Apr 1999 42163 044 2 May 1999 24714 041 2 Jun 1999 25136 041 2 Jul 1999 19960 028 2 Aug 1999 23241 034 2 Sep 1999 47500 039 2 Oct 1999 22625 037 2 Nov 1999 44215 037 2 Dec 1999 28100 041 2 Year Total 421179 0 Jan 2000 54945 047 2 Feb 2000 42510 043 2 Mar 2000 58762 044 2 Apr 2000 62560 046 2 May 2000 54197 044 2 Jun 2000 51946 041 2 Jul 2000 98563 048 4 Aug 2000 165462 065 5 Sep 2000 49944 035 2 Oct 2000 59235 041 2 Nov 2000 51703 038 3 Dec 2000 47826 041 2 Year Total 797653 0 Jan 2001 41502 041 2 Feb 2001 73510 035 2 Mar 2001 72758 045 2 Apr 2001 55982 043 2 May 2001 64773 050 2 Jun 2001 69020 048 3 Jul 2001 65315 035 2 Aug 2001 50240 040 3 Sep 2001 45411 042 2 Oct 2001 56438 040 2 Nov 2001 53841 038 2 Dec 2001 65535 040 2 Year Total 714325 0 1/31/2005 Page 6 of 7 State of Alaska, Oil and Gas Conservation Commission Injection History for: Month Liquid (BBL)Gas (MCF)DaysInj Wells Injecting KUPARUK RIVER, CRETACEO U WDSP Pool Jan 2002 44173 039 2 Feb 2002 44135 037 3 Mar 2002 65221 044 2 Apr 2002 37600 039 2 May 2002 42845 037 2 Jun 2002 43411 030 1 Jul 2002 30549 027 1 Aug 2002 41685 027 1 Sep 2002 21635 028 1 Oct 2002 29783 030 1 Nov 2002 26415 024 1 Dec 2002 41420 028 1 Year Total 468872 0 Jan 2003 35776 031 2 Feb 2003 51754 029 2 Mar 2003 86226 031 1 Apr 2003 72975 030 1 May 2003 48587 030 1 Jun 2003 34944 032 2 Jul 2003 60628 031 1 Aug 2003 44341 030 1 Sep 2003 41574 029 1 Oct 2003 26107 025 1 Nov 2003 18782 023 1 Dec 2003 30980 026 1 Year Total 552674 0 Jan 2004 34700 030 1 Feb 2004 58826 028 1 Mar 2004 98377 031 1 Apr 2004 73684 030 1 May 2004 52856 031 1 Jun 2004 40480 029 1 Jul 2004 40793 028 1 Aug 2004 53779 029 1 Sep 2004 38873 029 1 Oct 2004 56287 031 1 Nov 2004 70730 030 1 Dec 2004 64797 031 1 Year Total 684182 0 Pool Total 20,085,168 0 1/31/2005 Page 7 of 7 Arctic Ocean 9 E12 N7 E14 N10 N8 NKuparuk River Unit Meltwater PA Tarn PA Tabasco PA Kuparuk PA West Sak PA N AOGCC Kuparuk River Unit LOCATION MAP 0 6 miles West Sak Oil Accumulation Deadhorse Harrison Bay Dalton HwyTrans-AlaskaPipelineNuiqsut NPRA B e a u f o r t S e a North Slope, Alaska Modified from AK DNR Div. Oil & Gas 2005 NORTHSTAR UNIT DUCK ISLAND UNIT COLVILLE RIVER UNIT MILNE POINT UNIT KUPARUK RIVER UNIT PRUDHOE BAY UNIT OOOGURUK UNIT TUVAAQ UNIT NIKAITCHUQ UNIT Reference List KUPARUK RIVER, WEST SAK OIL Alaska Oil and Gas Conservation Commission, 2003, Conservation Order No. 406, available online at: http://www.state.ak.us/local/akpages/ADMIN/ogc/orders/co/co400_449/co406.htm Alaska Oil and Gas Conservation Commission, 2003, Conservation Order No. 406a, available online at: http://www.state.ak.us/local/akpages/ADMIN/ogc/orders/co/co400_449/co406a.htm Alaska Oil and Gas Conservation Commission, 2005, Production Database Nelson, K., 2005, Technology Driving West Sak Viscous Development: Petroleum News Alaska, Volume 10, No. 2, Week of January 9, 2005; available online at http://www.petroleumnews.com/pnads/985090053.shtml 2/16/2005 Page 1 of 1 West Sak Oil Pool Summary The West Sak Oil Pool is located largely within the boundaries of the Kuparuk River Unit (“KRU”), but it laps over into the Milne Point Unit to the NE and extends to the south, beyond the boundary of the KRU. The West Sak Oil Pool is currently developed from four pads (KRU 1B, 1C, 1D, and 1E), and it has produced continuously since December 1997. West Sak oil production within the KRU has climbed steadily from the initial monthly average of 19 barrels of oil per day (“BOPD”) to approximately 9,300 BOPD during the first 8 months of 2004. During September 2004, West Sak oil production abruptly jumped to its current level of 17,000 BOPD when several new wells were brought on line. In December 2004, production from the West Sak Pool averaged 17,072 BOPD from 31 wells.1 This tremendous pool occurs within the Late Cretaceous-aged Schrader Bluff Formation ("Schrader Bluff"). It is defined as the accumulation of hydrocarbons common to and correlating with the interval between 3,742' and 4,156' measured depths in the West Sak No. 1 well.2 It lies at depths ranging from about 3,000’ to 4,500’ true vertical depth subsea.3 West Sak oil is characterized by biodegradation, with API gravities that vary from 22 degrees in the deeper, eastern part of the KRU to 10 degrees in the shallower western side of the Kuparuk River Unit.4 ARCO Alaska Inc. conducted a pilot production test of the West Sak sands from September 1983 to December of 1986. A total of 16 wells were drilled and completed: 9 producers and 7 injectors. The test ultimately produced 755,062 barrels of oil, 326 MCF of gas and 2.12 million barrels of water. During 1986, the pilot test produced at an average daily rate of 821 barrels of oil, 297 MCF gas and 2,966 barrels of water from between 8 and 9 production wells. Original oil in place (“OOIP”) within the Kuparuk River Unit is estimated to be is about 15 to 16 billion barrels.5 SFD Revised Feb. 16, 2005 1 Alaska Oil and Gas Conservation Commission, 2005, Production Database 2 Alaska Oil and Gas Conservation Commission, 1997, Conservation Order No. 406, available online at: http://www.state.ak.us/local/akpages/ADMIN/ogc/orders/co/co400_449/co406.htm 3 Nelson, K., 2005, Technology driving West Sak viscous development, Petroleum News Alaska, V. 10, No. 2, January 9, 2005; http://www.petroleumnews.com/pnads/985090053.shtml 4 Alaska Oil and Gas Conservation Commission, 2003, Conservation Order No. 406a, available online at: http://www.state.ak.us/local/akpages/ADMIN/ogc/orders/co/co400_449/co406a.htm 5 Nelson, K., 2005, Technology driving West Sak viscous development, Petroleum News Alaska, V. 10, No. 2, January 9, 2005; http://www.petroleumnews.com/pnads/985090053.shtml AAOrder No.DateOperator Description Current KUPARUK RIVER FIELD WEST SAK OIL POOL Current Orders 432 0CCO 02-Nov-04CONOCOPHILLI Modification of Pool Rules.Y 494 0CO 04-Sep-03CONOCOPHILLI AOGCC on its own motion, adopted rules regulating sustained casing pressures in development wells in all pools within the Kuparuk River Field. Y 406 0ACO 27-Aug-03CONOCOPHILLI Authorization to changes to Rule 7 Conservation Order 406 pertaining to Common Production Facilities and Surface Commingling allocation methods affecting the West Sak Oil Pool producing with the Kuparuk River Unit. Y 406 1CO 21-Jul-03CONOCOPHILLI Approval of a Small Scale Enhanced Oil recovery (SSEOR).Y 21BAIO 21-Jul-03CONOCOPHILLI Approval of a Small Scale Enhanced oil recovery (SSEOR).Y 20BAIO 12-Dec-02CONOCOPHILLI Order to expand the affected area of AIO 2A for Kuparuk River Oil Pool. Y 20AAIO 04-Jun-98BP EXPLORATI Approval of a pilot waterflood project within the Tabasco accumulation in Kuparuk River Unit. Consolidation of AIO 2 and ammendments. Y 406 0CO 16-Oct-97ARCO ALASKA Pool defined and pool rules for development of the West Sak Oil Pool in the Kuparuk River Field. Supercedes CO 191 and amendments. Amended to add new rules on 9/4/03. Y AAOrder No.DateOperator Description Current KUPARUK RIVER FIELD WEST SAK OIL POOL Spacing Exception Orders 406 0BCO 02-Nov-04CONOCOPHILLI Spacing exception for the West Sak Oil Pool.Y 406 1ACO 20-May-04CONOCOPHILLI Spacing Exception for Kuparuk River Unit 1E-123L1. Amended by CO 494 and Superseded by CO 406B. N 242 0CO 06-Apr-89ARCO ALASKA Spacing exception for West Sak WS1-01.Y AAOrder No.DateOperator Description Current KUPARUK RIVER FIELD WEST SAK OIL POOL Obsolete Orders 26AIO 27-Jan-94ARCO ALASKA Revoked by CO AIO 2A. Amend rule 6, AIO 002 to allow additional means for demonstrating mech integrity of inj wells. N 25AIO 27-Dec-91ARCO ALASKA Revoked by AIO 2A. Admend Rule 2 of AIO 002.N 24AIO 20-Dec-88ARCO ALASKA Revoked by CO AIO 2A. Amends Rule 6, AIO 002 - allow RTSs as alternate method MIT. N 23AIO 07-Jul-88ARCO ALASKA Revoked by CO 2A. Amends Rule 2, AIO 002 re injection non- hazardous fluid disposal to allow disposal into Upper Ugnu non-oil bearing sands. N 21AIO 27-Oct-86ARCO ALASKA Revoked by CO AIO 2A. Amends Rule 3 AIO 002 re injection fluids. N 22AIO 27-Oct-86ARCO ALASKA Revoked by CO AIO 2A. Amends Rule 7, AIO 002 re pressure communication or leakage. N 20AIO 06-Jun-86ARCO ALASKA Revoked by CO AIO 2A. Authorizes underground injection fluids w/in KRU for enhanced hydrocarbon recovery/disposal non- hazardous waste fluids. N 191 2CO 29-Jun-84ARCO ALASKA Amends CO 191 rule 1 project designated an experimental pilot production activity. N 191 1CO 26-Oct-83ARCO ALASKA Rescinds Rule 7 CO 191 auto surface safety valve not required on prod wells W Sak Sands Sec 35 project. N 191 0CO 26-Sep-83ARCO ALASKA West Sak Sands Sec. 35 project.N Arctic Ocean 9 E12 N7 E14 N10 N8 NKuparuk River Unit Meltwater PA Tarn PA Tabasco PA Kuparuk PA West Sak PA N AOGCC Meltwater, Tabasco, Tarn and West Sak LOCATION MAP 0 6 miles 0816243240Producing Oil WellsKUPARUK RIVER FIELD, WEST SAK OIL POOL020406080100Water Cut ( % )KUPARUK RIVER FIELD, WEST SAK OIL POOL0.10.5151050100Cum Oil Prod ( MMbbl )Cum Water Prod ( MMbbl )Cum Gas Prod ( MMMcf )KUPARUK RIVER FIELD, WEST SAK OIL POOL1983 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 2000 01 02 03 040.0010.0050.010.050.10.5151050100Oil Rate (CD) ( Mbbl/d )Water Rate (CD) ( Mbbl/d )Gas Rate (CD) ( MMcf/d )Gas / Oil Ratio ( Mcf/bbl )KUPARUK RIVER FIELD, WEST SAK OIL POOL Alpine Oil Pool - Permitted Wells0246810121416182019992000200120022003YearDev-MultilatDev-StDev-NewService-StService-NewExpl-StExpl-NewPermitted Wells 051015202530Wells on Gas InjectionWells on Water InjectionKUPARUK RIVER FIELD, WEST SAK OIL POOL - EOR INJECTION0.10.5151050100Cum Gas Inj ( MMMcf )Cum Water Inj ( MMbbl )KUPARUK RIVER FIELD, WEST SAK OIL POOL - EOR INJECTION1984 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 2000 01 02 03 040.10.5151050100Gas Inj Rate (CD) ( MMcf/d )Water Inj Rate (CD) ( Mbbl/d )KUPARUK RIVER FIELD, WEST SAK OIL POOL - EOR INJECTION 051015Disposal WellsKUPARUK RIVER FIELD, CRETACEOUS UNDEFINED WASTE DISPOSAL POOL0.10.5151050100Cum Water Disp ( MMbbl )KUPARUK RIVER FIELD, CRETACEOUS UNDEFINED WASTE DISPOSAL POOL1982 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 2000 01 02 03 04100101102103104105Waste Disposal Rate ( bbl/d )KUPARUK RIVER FIELD, CRETACEOUS UNDEFINED WASTE DISPOSAL POOL