KashaganandTengiz—CastorandPollux DanielJohnstonandDavidJohnston AdaptedfromPetroMinMagazine–15December,2001. The recently announced super giant Kashagan discovery in the sector of the NorthCaspianSeaistheworld’slargestdiscovery in three decades. Kashagan, located in shallowwater,isananalogtotheonshoreTengizfieldlocatedapproximately130to150km (85miles)tothesoutheast. KashaganandTengizarethetwolargestfieldsinKazakhstan—theiroilreservesalonerival theUnitedStates22Billionbarrelsofoil,yettheyhavehardlybeguntoproduce.Tengizin 10yearsofproductionhasproducedlessthan10%ofit’srecoverablereserves.Andwhile Kashaganwasonlyjustdiscovered,thereareothersimilarstructuresintheKashaganlicense areathatareyetundrilled.Overall,thedevelopmentcostswilllikelycosttensofbillionsof dollars but revenues to the Contractor group (the oil companies) and the Kazakhstan Governmentcouldexceed onetrilliondollars . TheKashaganprospect,(Figure1)namedafterthegreatKazakhpoet,wasidentifiedbythe Soviets in the early 1970s. However, the extremely promising prospect, located in an environmentallysensitiveandhighcostenvironment,wasnotdrilledatthattime. Threewellshavebeendrilledonthestructuresincelate2000andtheprospecthaslivedupto it’spromise.Appropriately,theKashaganproduction sharingagreement (PSA) is about as 1 famousasthediscovery. Every single percentage point (1%) take (either Government or Contractor take) could representfrom$1.5to$2billioninprofitsforthefirst10billionbarrelsalone.Thisisabig one. Thediscoveryisratedat6.4to100billionbarrels. 2However,itislikelythatagoodworking range might be somewhere on the order of 6.4 to 20 billion barrels of recoverable oil reserves—onlythreewellshavebeendrilled.At20Billionbarrels(ifthatisultimatelythe figure)Kashaganwouldbethe5 th largestoilfieldintheworldandtheonlyoneofthefive outsidetheArabian/PersianGulfregion. ThediscoverywellKashaganEast-1(KE-1),47milessoutheastofin10feetofwater, encounteredcarbonatesbelow13,000feet(3,960m)andtested3,700BOPDand7 MMCFD on a half-inch choke 3. In May, 2001 ExxonMobil announced test rates on the KashaganWest-1(KW-1)welllocated40-48kmaway(dependingonthesource)fromthe Kashagan East discovery well. The KW-1 test was also from Paleozoic Carbonates ()below 13,800ft(4,250 m) describedas a -Devonian coral atoll.

KashaganandTengiz–CastorandPollux1 DanielJohnston&Co.,Inc. Thewellflowed3,300BOPDoflight42-45ºAPIgravitycrudeand7.5MMCFDonahalf- inch choke.4October,2001AGIPannouncedatestrateof7,400BOPDfromtheKashagan East-2 well drilled 8 km away from the discovery well. 5 The results of the 3 wells are summarizedinTable1. Thesearenotbadtestratesbuttheyarenotspectacularbyworldstandards.Ofthenearly100 odddiscoveriesreportedworldwideeachyeartheaveragetestrateisaround5,000BOPD. Theaverageratefortheupper25 th percentileis10,000BOPDwhichisthekindofratethat mightbeexpectedforagiantdiscoverylikeKashagan.However,indicationsarethattesting hasbeenlimitedbytechnicalandenvironmentalconditionsandregulations. AccordingtoAgip-(theoperator)thesecondwellencounteredthesamereservoirrocks astheKashaganEast-1discoverywell.Theyestimatedeliverabilityforthewellat5,000- 20,000 BOPD. 6Thissoundsreasonableifthefieldisasbigasexpected.This partofthe worldisfamousfor“hype”butallindicationsarethisisasubstantialdiscovery. Table1 KashaganDrillingSummary Water Drilling WellTestRates Depth Depth Operator Comments Well BOPD MMCFD (feet) (feet) CompletedAugust,2000 KE-1 OKIOC 3,700 7 10 13,000+ 42-44ºAPI 1,900cubicfeetperbarrel Completedearly2001 OKIOC 25milesWestofKE-1 KW-1 3,400 7.6 22 13,800+ 42-45ºAPI 2,200cubicfeetperbarrel KE-2 SpuddedApril,2001 AgipKCO 7,400 - - - 5milesNorthofKE-1 ResultsannouncedOct.,2001 From: PhillipsCompany2001FactBook,page27;OKIOCwebsiteOct.23,2001; Agip-ENIannouncement22October,2001SanDonatoMilanese

KashaganandTengiz–CastorandPollux2 DanielJohnston&Co.,Inc. CPC

BTC

Atyrau

47 °°°00'N

Kashagan East Kairan Kashagan West North Tengiz Caspian 46 °°°00'N Kashagan Aktote S.West

KalamkasA 52 °°°00'E 53 °°°00'E

45 °°°00'N Kazakhstan

50 °°°00'E 51 °°°00'E

Prospect LicenseArea KashaganAreaMap Welllocations(approximate) From:KashaganPSA [pg167] CaspianPipelineConsortium(CPC) Baku-Tbilisi-Ceyhan(BTC) (Proposed)

Figure1

KashaganandTengiz–CastorandPollux3 DanielJohnston&Co.,Inc. Tengiz Tengiz is the Kashagan twin. They have the same reservoir rocks with similar fluid properties,pressuregradients,reservoirdepthsandsulfurcontent(SeeTable2).Recoverable reservesareratedat6to9Billionbarrelsoflightoil(outof24Billionbarrelsin-place)with associatedgasreservesof64TCF 7. Tengizmeans“sea”intheKazakhlanguagewhichcarrieswithitabitofironybecausethe fieldisbothanonshorefieldandforallpractical(marketing)purposesitislandlocked.Itwas discovered in 1979 and began producing in 1991. In April, 1993 shortly after the Tengiz contractwassigned,thefieldwasproducing24,000BOPDfrom27soviet-erawells. TheTengizcrudehasaspecificgravityof0.787gramspercubiccentimeter–48.2 °APIwith 0.49%byweight(wt%)sulfurandalsohasabundantsolidbitumen.Theassociatedgashas 7 12.5mol%hydrogensulfide(H 2S). ProductioncostsforTengizarereportedataround$3/BBL.Thisisnotcheap,especiallyfora giant oil field. World average production costs for smaller fieldsare $3.50to $4.50/BBL. There is economy-of-scale with the giant Tengiz field, but the harsh technical difficulties neutralizesomeofthat. Asrecentlyas1999,2/3 rds oftheTengizproductionwentoutbyrail—around160,000outof 250,000BOPD.TheCaspianPipelineConsortium(CPC)leased10,000tankcarssendingup to6trainsperdaytoRussianportsontheBlackSea.Thisisoneofthemostexpensivemeans oftransportation.TransportingoiltotheBlackseacostsaround$6/BBLwithsomuchofthe productiongoingbyrail.TransportationcostontheCPCpipelinefromTengiztotheRussian BlackSeaportofNovorossiskwhichstartedupinAugust,2001isestimatedat$3/BBL.The $2.6Billion,950mileCPClinehasaninitialcapacityof560,000BOPD.Ultimatecapacity forthislineis1.5MMBOPD.Kashagancrudewillhavetofinditsownwayout. Butthereismovementonthatfront.WhileChevronTexacoisnegotiatingwithSOCARthe Azerbaijannationaloilcompanytopurchaseashareinthe$2.4billionBaku-Tbilishi-Ceyhan (BTC) pipeline project, Agip-ENI has already purchased a 5% share. 8 This project now seems to be a certainty with strong pressure from the U.S. Government and the kind of deliverabilityexpectedfromKashagan.Itisaquestionoftimebutthepressureisintensenow withtheKashagandiscovery. ClimateandInfrastructure Thislandlockedregionischaracterizedbyextremeweatherwithsummerhightemperatures ontheorderof44ºC(110ºF)andwinterlowsof-40ºC(-40ºF).Itisthesamelatitudeas Billings,Montanabut100feetbelowsealevel.Iceproblemsareexpectedinwinterbutyear- round-drilling is planned. Infrastructure in this remote part of the world is weak for the world-class development contemplated for Kashagan even with Tengiz nearby. However, withreserveslikethese,evenalargeworld-classpipelineliketheBTCprojectat$2.4Billion (capitalcosts)becomesfeasible.With10billionbarrelsofoilthisamountstoonlyaround 24¢/BBL.

KashaganandTengiz–CastorandPollux4 DanielJohnston&Co.,Inc. ReservoirDepthsandPressures The depth of the reservoir rocks ranges from 13,000 feet to over 15,000 feet. This is not terriblydeepbyworldstandardsbutthecostofa15,000footwellcaneasilybedoublethat ofa10,000footwell.Thatextramilemakesabigdifference.Butwhatmakesanevengreater differenceisthereservoirpressure.PressuresthroughouttheCaspianregionarenearlytwice that of normal hydrostatic pressure and sometimes more. Tengiz is famous for it’s high temperature and pressure. Temperatures are nearly 200 ° F and pressures are among the highestintheworldat0.82poundspersquareinchperfoot(PSI/ft)ormore—almosttwice normalhydrostaticpressureof0.433to0.465PSI/ft. Apressuregradientlikethiscaneasilyaddover$10MMperwellfordrillingfluids(mud) alone.Andwiththekindofmudweightsrequired(over16poundspergallon)drillingcango slow.ThereportedcostforthefirsttwoKashaganwellsisUS$100MMnotincludingthe cost of the initial 110,000 square kilometer 3-D seismic data acquisition program that precededdrilling.Thisdoesnotsoundunreasonable.Hightemperaturesandpressures,sour (hydrogen sulfide bearing) gas, high gas oil ratios (GOR), and poor infrastructure in a hostile—environmentally sensitive region all add up. But it will take hundreds of wells to developKashaganandthesedevelopmentwellswillnotcostthatmuch. ProductiveArea Whiletherearenumerousreported sizes forthetwofields,agoodworkingnumberforthe Kashaganfieldisprobably320,000acres(basedon numerousreported figures). There are manyexplorationblocks/licensesinthisworldthat are smaller. Tengiz is about a third as large. Alaska’s Prudhoe Bay field productive area is roughly 150,000 acres. In the environmentallysensitiveCaspian,dealingwithsuchalargestructureisexpectedtobeabit ofaproblem—ittakesalotofwellstocoverthatkindofarea.

KashaganandTengiz–CastorandPollux5 DanielJohnston&Co.,Inc. Table2 Kashagan–TengizVitalStatistics Kashagan Tengiz Discovered July,2000 1979 Start-up N/A 1991 RecoverableReserves (BillionsofBarrels) 6.4–20 (ormore?) 6–9 Offshore Location Onshore 10-22feetofwater Size (acres) 320,000 100,000 (Potentialproductivearea) Roughly14,000orso Reservoir Depth (feet) 13-14,000 Exactfigurenotavailable CrudeCharacteristics 42-45 °APIGravity 48.2 °APIGravity 18-20mol%H 2S 12.5mol%H 2S PressureGradient Assumedtoberoughlythe Veryhigh,approximately sameasTengiz–veryhigh 0.82psi/ft+ GasOilRatio 1,900-2,200 High (cubicfeetperbarrel) fromKE-1&KW-1tests Exactfigurenotavailable Current (Pre-BP/Statoilsale) Agip-ENI(1)14.28% Chevron(1)45% WorkingInterest TotalFinaElf 14.28 Exxon/Mobil25 Ownership (%) Exxon/Mobil14.28 Kazakhoil25 BritishGas14.28 5 Shell14.28 (Percentagesarerounded) BP9.52 (2) (1)Operator Statoil4.76 (2) (2)Pre-sale(BP/Statoil)% Phillips7.14 (3) (3)Joinedlater 7.14 (3)

CurrentPipeline Baku-Tbilisi-Ceyhan CaspianPipeline Ownership (%) (BTC) Consortium(CPC) SOCAR45% RussianFederation24% BP(Operator)25.7- Chevron 15 Agip-ENI5 KazakhstanRepublic19 Other? LukArco12.5 Shell/Rosneft7.5 Exxon/Mobil7.5 SultanateofOman7 BritishGas2 Agip-ENI2 ORYX1.75 KazakhPipelineVent.1.75

KashaganandTengiz–CastorandPollux6 DanielJohnston&Co.,Inc. CommercialTerms ItislikelytheKashaganagreementwouldhavebeenfamousifonlyforthecomplexityofthe terms.Priortodrilling,theprospectswereknowntohavesubstantialpotentialanditappears thatparticularcarewastakentocraftcommercialtermsthatmightaccommodateallpossible outcomes.Thecontractisunique.Ithasahalfdozen “sliding scales” of various types (in Kazakhstantheterm“glidingscale”issometimesused).Ihaveseennoothercontractinthe worldwiththisdegreeof“flexibility”orcomplexity.Butthisdoesnotmeanthetermsare unfair. In fact the contract terms are extremely progressive—a “back-end-loaded” system. Governmentshareofprofitsand revenuesisextremelylowatfirst. Theheartofthiscontractisacomplexformulaforthedivisionofprofitoil(definedasGross productionlessCostoil—seeFigures3and4fortheseandotherterms).Contractorshareof profit oil is a function of four separate sliding scales. It is defined as the lower of the Contractorprofitoilsharecalculatedbyeitheran“ Rfactor ”,aninternalrateofreturn( IRR ) factor,orafairlyunique2-dimensional“ Volumefactor ”.Itseemslikeaslightlyparanoid wayoftryingtoensurethereisnomoneylefton-the-table.(SeeKashaganPSASummaryin theAppendix). “Rfactor” The“Rfactor”isfairlytypicalofothersuchelementsaroundtheworldwithoneexception. The “R factor” is equal to the inflation adjusted “Deflated value” of the contractors cumulativereceipts(effectivelyContractorcostoilplusprofitoillesstaxes)dividedbythe cumulative“Deflatedvalue”ofContractorexpenditures. It isbasically a “payout”formula thatadjustsforinflation.Theinflationadjustmentisunusual.Thecontractorcanreceive90% oftheprofitoiluntilthe“Rfactor”reaches1.4(inflation-adjustedpayoutplus40%).From thatpointuntilthecontractorreachesan“Rfactor”of2.6(whichisunlikely)thecontractor profitoilsharewillslidedownwardto10%(unlessithasalreadygottentothatpointbecause oftheotherslidingscales). Thecostrecoverylimitisalsoafunctionofpayout—or“payback”asitisreferredtointhe Agreement.Itchangesfrom80%beforepaybackto55%after—effectivelyanothersliding scale.An“Rfactor”ofone(1.0)isthepointatwhichpayoutoccurs.Theseformulasare fairlycommonaroundtheworldandarebecomingmorecommon.Approximately25%ofthe countriesaroundtheworldhaveeitheran“Rfactor”orarate-of-return(ROR)basedsystem. Theyrarelyhaveboth an“Rfactor”andarate-of-returnformula. InternalRateofReturn(IRR) Systems with taxes or profit oil splits based on various IRR thresholds are referred to as “rate-of-return(ROR)systems”.Theyarealsoreferredtoasthe“WorldBankmodel”. Inthese systems pre-determined IRR thresholds are established (by statute or negotiation) andwhentheContractor’sIRRexceedsthesethresholdsGovernmenttakeincreasesbyvirtue ofeitheranincreasedtaxrateorachangeinprofitoilsplit. There are three such sliding scales in this contract. The Profit Oil, Profits Tax and the

KashaganandTengiz–CastorandPollux7 DanielJohnston&Co.,Inc. “Volumefloor”areallgovernedbyIRRbasedslidingscales. The Contractor receives 90% of the profit oil until an IRR of 17% is reached on the Contractor’s“Deflated”netcashflow.The17%IRRtriggerpointthenrepresentsa“real” rateofreturn—whichiscommonforRORmechanisms.Fromthatpointuntilthecontractor reachesarealIRRof20%thecontractorprofitoilshareslidesdownwardto10%(unlessit hasalreadygottentothatpointbecauseofthe“Rfactor”ortheVolumefactor). VolumeFactor Thethirddimensiontotheprofitoilsplitcalculationisaslightvariationonthe“cumulative productionslidingscale”theme.Uptoroughly3BillionbarrelsofContractor’scumulative share of production (or more precisely a “Notional Volume” of 3 Billion barrels) the Contractorshareofprofitoilis90%.Afterthatitslidesdownto10%ataround5.5Billion barrels.Thisaspectoftheprofitoilsplitcalculationisfurtherqualifiedbya“VolumeFloor” limitation. The Volume factor profit oil split calculation will beequaltothe greaterof theNotional VolumecalculationortheVolumeFloorcalculationwhichisalsobasedoninternalrateof return-basedthresholds(SeeKashaganPSASummary). Themulti-dimensionalhybridnatureofthecontractisextremelyrare.Varioussimultaneous calculationseachyieldaprofitoilsharefortheContractorandoneischosen.Theprofitoil splitcalculationappliesseparatelytoeachdevelopmentarea.TheContractorshareofprofit oil (P/O) atany given time is basedonthe resultsofthepreviousaccountingperiod.An exampleisshowninTable3.

KashaganandTengiz–CastorandPollux8 DanielJohnston&Co.,Inc. Table3 ExampleContractorP/OShareCalculation (1) (2) (3) Method P/OShare P/OShare P/OShare “Rfactor” 70% 70% IRR 58% 58%58% NotionalVolume 55% VolumeFloor 60% 60% UltimateContractorP/OShare 58% (1) Eachof4calculationsofContractorshareofprofitoil(P/O)aremade. (2) ThechoicebetweeneithertheNotionalvolumeortheVolumefloor calculationwillbebaseduponwhicheveris“greater”. (3) Thechoiceofthe3remainingpercentageswillbebasedupon whicheveris“lower”.InthefollowingaccountingperiodtheContractor shareofprofitoilwillbe58%. Sowhatdoesitallmean? Thecontracttermsprovideanextremelyliberalmeansbywhichthosewhoputupthecapital can get their money back quickly. Furthermore in the early stages the Contractor gets a healthyshareofprofits.Onlylater,aftercostshavebeenrecoveredand thecontractorgroup reapsareasonablerateofreturn,doestheGovernmenttakekick-intohighgear. RecoveringCosts Oneofthekeyaspectsofthissystemisthatthoseprovidingthecapitalrecovercostsquickly. InanygivenaccountingperiodtheContractorgroupcanreceiveupto98%oftheproduction. ThisisillustratedintheflowdiagraminFigure2byfollowing$100.00ingrossrevenues through the system. It shows what can happen in the early accounting periods after productionbeginswhencumulativecostsbyfarout-weighrevenues(whichoftenhappens). Thecostrecoverylimitis80%whichforces20%oftheproductionintotheprofitoilsplit andthecompaniesget90%ofthat.ThismeanstheshareofproductionfortheContractor groupis98%[80%+(90%of20%)]. Thereisabigdifferenceforcompaniesabletoaccess98%ofproductionasopposedtoonly 80% (world average) —especially with so much capital involved.

KashaganandTengiz–CastorandPollux9 DanielJohnston&Co.,Inc. KashaganPSAExampleCalculation Thisflowdiagramshowsthatintheearlyaccountingperiodsbeforepayout theContractorGroup(OilCompanies)canobtainupto98%oftherevenues (or product ion) generated. This example assumes costs far exceed Gross Revenues (taxdeductionswillyieldzerotaxableincome) .

“EarlyYearsofProduction-SingleAccountingPeriod”

GrossRevenues (Net-backSalesprice—TransportationCostsnettedout) OilCompany(Contractor) $100.00 Government Share Share Royalty 0% →→→ $0.00 $100.00

$80.00 ←←← CostRecovery ($EquivalentofCostOil) 80%Limit $20.00 ($EquivalentofProfitOil)

$18.00 ←←← ProfitOilSplit →→→ $2.00 90/10%

($0.00) →→→ TaxRate* →→→ $0.00 30%

$98.00 DivisionofGrossRevenues $2.00 EffectiveRoyaltyR ate 2 % $2.00/$100.00 Companyaccessto 98 % $98.00/$100.00 GrossRevenues

* Thisanalysisisbasedontheassumptionthataccumulatedcosts(deductions)exceed revenuesthusthecompaniesareinano-taxpayingposition.

Figure2

KashaganandTengiz–CastorandPollux10 DanielJohnston&Co.,Inc.

KashaganPSAExampleCalculation Inthelongrun,theGovernmentshareof revenues,production,andprofitoil willincrease.GovernmentTakealsoincreases—forthefirst10Billionbarrels theaveragewilllikelybearound83%. “FullCycle” GrossRevenues (Net-backSalesprice—TransportationCostsnettedout) $100.00 OilCompany(Contractor) Government Share Share Royalty 0% →→→ $0.00 $100.00 $30.00 ←←← CostRecovery AssumedCosts ($EquivalentofCostoil) (CapexandOpex) $70.00 ($EquivalentofProfitOil) ← ProfitOilSplit →→→ $ 16.80 ←← $53.20 (Averagefull-cycle) 24/76% ($5.04) →→→ TaxRate →→→ $5.04 30% $41.76 DivisionofGrossRevenues $58.24 $11.76 DivisionofCashFlow $58.24 17% Take 83% $11.76/($100.00-30.00) $58.24/($100.00-30.00) 46.8% Entitlement 53.2% ($30.00+16.80)/$100.00 $53.20/$100.00 “Rfactor”=1.39 $41.76/$30.00

Figure3

KashaganandTengiz–CastorandPollux11 DanielJohnston&Co.,Inc. GovernmentTake ThesenumeroussimultaneouscalculationsalonemaketheKashagancontractunique.And whilemuchoftherestofthecontractisbasedonstandardformulasfoundinothercontracts aroundtheworlditisthe percentages thatprovideaddedflavor. ThegeneralmechanicsofthesystemareshowninFigure3where$100.00ofgrossrevenues areusedtoshowthegeneraldistributionofrevenuesandprofits.Itisassumedthatcapital and operating costs (full-cycle) are assumed to amount to 30% of total revenues for 10 Billionbarrelsofproduction.ItisalsoassumedthattheoverallaverageGovernmentshareof profitoilduringthistimewillbearound76%(Contractorshareis24%).Whenthetaxrateis factored-intheGovernmenttakecomestoaround83%. Figure 5 illustrates how Government take changes with time as measured by cumulative productionforbothKashaganandTengiz.TheCrazyHorsedeepwaterdiscoveryintheUS GulfofMexicoisalsoshownonthisgraphforcounterpoint.NoticetheGovernmenttakeat Kashaganisquitelowatfirstandclimbstoaround94%. ThestructuresoftheKashaganandTengizsystemsare dramatically different. But for the first10Billionbarrelsorso,overallGovernmenttakeisaboutthesame—around83%.Yet Government take at Kashagan is quite low at first—around 46% and increases after the companiesreachpayout(SeeFigure5). These may sound like tough terms, but by contrast, Government take in the famous Indonesian standard contract for oil is around 86-87%. Many companies made a lot of moneyunderthosecontractsandsodidtheGovernment. Contractor Entitlement—“Bookingbarrels” In the early stages of production the Contractor group will be entitled to “lift” a huge percentage of production—98%. In this type of contract the lifting entitlement will correspondtothereservesthepartnerswillbeableto“book”.Thusforthefirst3billion barrelsof(proved)reservesitislikelythateachcompanywillbeabletobookupwardsof80 to90%oftheirworkinginterestshareofprovedreservesunderU.S.SecurityandExchange Commissionguidelines.UnderLondonStockExchangeguidelines,Britishcompanieswillbe able to book the same percentage of both “proved” plus “probable” reserves (“P 50 reserves”—consideredtohavea50%chanceofbeingtoohighand/ora50%chanceofbeing toolow). IntheexampleinFigure4theContractorgroupentitlement(costoil+profitoil)comesto 47%. AsGovernment share of profitoil increases so does Government entitlement. The Governmentreceivesprofitoilin“kind”andtaxesin“cash”.

KashaganandTengiz–CastorandPollux12 DanielJohnston&Co.,Inc. Sowhatisitworth? The petroleum industry has some of the greatest contrast between risk and reward. When discoveries are made the curiosity about “value” becomes magnified. Without detailed informationthetransactionsaredifficulttoevaluatefullybutitisalwaysinterestingtotry. Actual market transactions, if they are arms-length and conducted in a competitive and efficientenvironment,canbetheacidtestof“value”. In 1998 Phillips and Indonesian Petroleum Company (Inpex) acquired the Kasakh Government 14.28% share (7.14% each) for $500 million cash plus other consideration includinglow-interest-rateloansandsoforth. 9Thistransactionindicatesavalueatthattime of$3.5+Billion. But,thiswasbeforeanydrillinghadtakenplace. Inearly2001BPagreedtosellit’s9.52%interestinKashagantoTFEfor$409MM.This agreement took place after the results of the first well (Kashagan East-1) but before the resultsofthesecond.Statoil,ataboutthissametime,alsoagreedtoselltheir4.76%shareto TFE for $221 MM. (See Kashagan Chronology). These proposed transactions indicate a valueforthediscovery(andancillaryinterests)of$4.4Billion. ProposedSaleofBP/StatoilInterests: Working Sale Interest Price Share US$MM $MMper1% BP 9.52% 409 43 Statoil 4.76% 221 46 . Total 14.28% $630 44 Assuming there are 10 Billion barrels of recoverable reserves the value comes to around 44¢/BBLforpartially“proved”and“probable”undevelopedbarrelsin-the-ground. But,theproposeddealisfraughtwithcontroversy.Therearemanywhobelievethisproposed transactiondoesnotrepresentavalidindicationof actual value. In fact shareholders have filedaclass-actionsuitagainsttheBPBoardofDirectorsclaiming“grosswasteofassets”in 10 thesaleofBP’s9.52%interestinKashagan . Furthermore,thisdealwasnotconsummatedbecause theotherpartnershadrightsoffirst refusal.ByAugust,2001allparticipantsindicated their intention to pre-empt the saleand taketheirrespectivesharesatthisprice 11 .Noneofthemconsideredthepricetoohigh. The total consideration in this proposed transaction is similar to that of the earlier (pre- discovery)Phillips/Inpexacquisitionbuttherearedramaticdifferences.

KashaganandTengiz–CastorandPollux13 DanielJohnston&Co.,Inc. ConsideringthechangeinoilpricesandthefactthatthePhillips/Inpextransactionoccurred before muchofthehydrocarbonpotentialoftheKashaganprospecthadbeenconfirmedthe pricefortheproposedBPandStatoiltransactionsseemlow.Acomparisonisprovidedin Table4. Underavarietyofscenarios,thevalueoftheinterestsintheKashaganlicensecouldbeworth many times the price paid by Phillips/Inpex. This often happens when a big discovery is made.Italldependsonoilprices,costs,andtiming—anage-oldformula. Withpresent value discounting, dependingonthe cost, priceand timing assumptions, the valueperbarrelatthispointissomethingontheorderof$1.00/BBLorso.Thiswouldputa valueonthediscovery,(assuming10Billionbarrels)ofaround$10Billion. Inadditiontothis,thereareotherprospectsinthisacreage:Kalamkas,Aktote,Kairanand KashaganSouthwest.Anyoneofthesecouldbeanotherworld-classdiscovery(SeeFigure1 fromtheKashaganAgreement).Itwillbefascinatingtoseethedrillingresults.Furthermore, thereisasubstantialamountofgas.Withagasoilratio(GOR)ofaround2,000cubicfeetper barrel(basedontestrates)therecouldbeatleast20trillioncubicfeetof“associatedgas” alone(basedon10Billionbarrelsrecoverablereserves).Thiswouldaddanother3.3Billion barrelsofoilequivalent.Butitisextremelylikelythatthegasreserveswillbesubstantially greaterthanthis. The area isexciting from any perspective. Kashagan will be big news for many years to come.

KashaganandTengiz–CastorandPollux14 DanielJohnston&Co.,Inc. Table4 ComparisonofKashaganTransactions Buyer Phillips/Inpex TotalFinaElf (OriginallyIntended) (1) Seller JSC BPandStatoil KazakhstanCaspiShelf (Separate“Proposed” Transactions)

AcquiredWorkingInterest 14.28% 9.52%and4.76% PricePaid (orproposed) $500Million+ $630Million Imputed Value of 100% >$3.5Billion $4.4Billion WorkingInterest Historicalsetting TransactionDate 1998 2001 (2) OilPriceatthetime $11/BBL $20+/BBL Other Before the discovery After the discovery was wasmade. made, but before the secondwellwasdrilled. (1) Ultimatelyalltheotherpartnersexercisedrightoffirstrefusal28August,2001. (2)AnnouncedinFebruary,finalizedinmidJune,2001,pre-emptedinAugust—notfinalized.

KashaganandTengiz–CastorandPollux15 DanielJohnston&Co.,Inc. KashaganChronology 18Nov.,1997 -KashaganPSAsignedwithOffshoreKazakhstanInternationalOperating Companyconsortium(OKIOC)[ AGIP/BG/BP/Statoil/Mobil/Shell/Total] 1998 -Phillips/Inpexeachacquirehalfof14.28%JSCKazakhstanCaspiShelf(Government) interests 12Aug.,1999 -OKIOCstartsdrillingfirstExplorationWellKE-1intheNortheastCaspian Seawiththe6,000tonconverteddrillingbargeSunkarownedbyParkerDrilling.Thewellis located75kmsouth-eastofAtyrau. 10May,2000 -OKIOCreachesoriginaltargetdepthof4,500metersinKashaganEastwell. 24July,2000 -OKIOCannouncesdiscoveryattheKE-1well. 7Oct.,2000 -Secondwell,KashaganWest-1spudded. 2 Feb., 2001 - BP/Amoco reported agreement to sell it’s 9.52% interest in OKIOC to TotalFinaElf(TFE)for$409MM. (ITAR/TASSNewsFriday,February2,200110:57EST). Dateunknown -Statoilagreestosell4.8%sharetoTFE (atapproximatelysametimeasBPsale). 14Feb.,2001 -TargetdepthisreachedatKW-1well. 4May,2001- Exxon/MobilannouncestestresultsatKW-1well. 3,398BOPDand7.56MMCFD MidJune,2001 -BP/AmocoandStatoilSalesAgreementsfinalized July,2001- BPBoardofDirectorssuedinclass-actionsuitclaiming “gross waste of assets”inthesaleofBP’s9.52%interestinKashagancontract/discoverytoTFEfor$409 MM. (PlattsOilgramNews,23July,2001) August,2001- PartnersexerciserightoffirstrefusalonproposedsaleofStatoilandBP intereststoTFE. (PhillipsCorporation2001FactBook,page28) 22October,2001- Agip-ENIannouncesresultsofAgipKCOKashaganEast-2welltest results.The well, 8 km away fromKashagan East-1, drilled to 4,142 meters tested 7,400 barrelsofoilperday. (SanDonatoMilanese) November,2001- Chevron/TexacoconfirmsitisnegotiatingwithSOCAR,(Azerbaijan stateoilcompany),topurchaseashareinthe$2.4billionU.S.-backedBaku-Tbilishi-Ceyhan (BTC)pipelineproject—10daysafterAgip-ENIannouncedithadpurchasedafivepercent (5%)stakeintheprojectfromSOCAR. (TheRussiaJournal,November02-08,2001”Oilgiant holds talksoverBTCpipeline”)

KashaganandTengiz–CastorandPollux16 DanielJohnston&Co.,Inc.

KashaganAgreement DivisionofRevenuesvsCumulativeProduction AlmostallrevenuesgotheContractorGroup(Companies)priortopayout. Company Assume Payout occurs Government shareof here. Up to this point shareof Company share of Revenues Revenues revenuesis98%. 100% • • • 0% 20% 80% • • 60% 40% Government • OverallAverage ShareofRevenues • ±58% 40% Contractor 60% Group • OverallAverage • ShareofRevenues • • ±42% • 20% 80%

0% 100%

0 2 4 6 8 10 CumulativeProduction–BillionsofBarrels

Figure4

KashaganandTengiz–CastorandPollux17 DanielJohnston&Co.,Inc. Kashagan and TengizAgreements GovernmentTakevsCumulativeProduction While the systems are structu red differently, the overall Government Take (share of Cash Flow) will be about the same for Kashagan and Tengiz— around83%forproductionof7-10Billionbarrelsofreserves. Government MaximumGvt. Take Take94%± (Gvt.shareofCashFlow) 100% Kashagan • • • • • • • • • • • • • • • • • • • • • ••• 80% • Tengiz • MaximumGvt. Take84%± 60% • • • Averageforbothsystems isaround83%. 40% 20% CrazyHorse :LargestUSGulfofMexicodeepwater discovery,900–2,000MMBBLSrecoverable. 0% 0 2 4 6 8 10 CumulativeProduction–BillionsofBarrels Figure5

KashaganandTengiz–CastorandPollux18 DanielJohnston&Co.,Inc. Table5 BasicEquations/Definitions GrossProduction =TotalProducedOil=100%WorkingInterest GrossRevenues =TotalReceiptsfromsaleofGrossProduction “Revenues” atthewellhead =GrossProduction*Net-back(Wellhead)Price (transportationcostsbeyondN.Caspiannettedout) TotalCashFlow =GrossRevenues “CashFlow” -TotalCosts(CapexandOpex) Cost Recovery =OperatingCosts "CostOil" +Depreciation[ ofCapitalExpenditures(Capex)] +UnrecoveredCostsCarriedForward Profit Oil =GrossProduction-CostOil GovernmentProfitOil =ProfitOil *GovernmentPercentageShare ContractorProfitOil =ProfitOil *ContractorPercentageShare TaxableIncome =GrossRevenues -OperatingCosts -GovernmentProfitOil -Depreciation Company CashFlow =GrossRevenues “ContractorGroup” -CapitalCosts -OperatingCosts -Bonuses -GovernmentProfitOil -Taxes Company Take(%) =CompanyCashFlow (SameasContractorgroupCashFlow) “ContractorGroup” ÷TotalCashFlow Government CashFlow =GovernmentProfitOil +Bonuses +Taxes Government Take(%) =GovernmentCashFlow ÷TotalCashFlow

KashaganandTengiz–CastorandPollux19 DanielJohnston&Co.,Inc. KashaganPSA Summary AGIP/BG/BP/Statoil/Mobil/Shell/Total and JSCKazakhstanCaspiShelf18/11/1997 [Eachholds1/7 th exceptBP2/21andStatoil1/21] ______ Area NorthCaspianSea ≈6,000km 2(1.4millionacres) ______ Duration Exploration (2“Periods”) 72months(1 st Phase) +Extensionof24months(2 nd Phase). Production20years+210-yrextensionsforeachdevelopment [pg210] GasRetention: 36monthsfornon-commercialDiscovery, 120monthsforcommercialDiscovery [pg55] ______ Relinquishment Section6.2MandatoryRelinquishment? [Contractpagemissing] ______ Bonuses Signature $175MM st Training $1.5MM/year1 4yearsand$1MM/yearthereafter [pg71] Social&Infrastructure $5MM/yearuntilcommercialdiscovery andthenthegreaterof1%ofdevelopmentcostsor$5MM/year [pg53] ______ st Obligations 1 Phase$220-280MM [pg137] nd 2 Phase$25-65MM [pg141] *ParentcompanyGuaranteesrequired ______ CostOil 80%Before“Payback”55%AfterforeachDevelopmentArea [pg31] Uplift [pg31] ______ Budgetoverrunnottoexceed5%oftotalexpendituresor10%peritem [pg29] ______ ProfitOilSplit fortheContractor foreachDevelopment area,isthelowerof : “ Rfactor %” or“ IRR%”or“ Volume%” [pg34] Inflationadjusted Contractor “Rfactor” P/O% 0–1.490% 1.4–2.6 (90%–(66.67%*(Rf–1.4))) ≥2.6 10% Real Contractor IRR P/O% 0–17%90% 17–20% (90%–(26.67%*(IRR–17%))) ≥20%10% Volume% VolumeFloor Notional Contractor IRR Contractor Volume (1) P/O% (2) Test P/O% 0–390% 0–12.5%60% 3–5.5 (90%–(32%*(Vn–3))) 12.5–15 35 ≥5.510% 15–17.5 20 >17.5 10 (1)Vn(NotionalVolume)effectivelyinBillionsofbarrels (2)ContractorP/OsharebasedonthegreateroftheVolume%(basedonNotionalVolume)ortheVolumeFloor ______

KashaganandTengiz–CastorandPollux20 DanielJohnston&Co.,Inc. KashaganPSA Summary -Continued ______ ProfitsTax [pg82] ForeignInvestors’ “ProfitsTax” IRR Rate Upto20% 30% 20—22% 34% 22—24% 38% 24—26% 42% 26—28% 48% 28—30% 54% >30% 60% ______ WitholdingTaxes VariousexemptionsincludingCustomsandExcise [pg86] VAT ImportsexemptandCostOilandProfitOil“zerorated” InterestExpenseDeductibleupto70/30debt/equity [pg77] Depreciation Various(from10%/yearto25%/year) [pg80] ______ EmploymentTax 2%ofKazakhcitizenspayroll [pg85] Stabilizationlanguage(somewhat)Section28.6(b) [pg86] ______ DMO Possible upto15%atmarketpriceintheeventofDomesticSupplyShortfall [pg44] ______ G&A 3%on1 st $100MMofrecoverablecosts; 2%on2 nd $100MM; rd 1.25%on3 ;and 0.75%onallcostsover$300MM [pg157] ______ Decommissioning QP= ((P/RES)*(GrossCoD–SalvageValue))-Fb [pg49] QP=QuarterlyPaymenttobetransferredtoDecommissioningFund P=CumulativeProductionfrom“DepletionPercentage”point DepletionPercentagepointdefinedineachDevelopmentPlan RES=RemainingReserves CoD=EstimatedCostofDecommissioningandAbandonment Fb=Fundbalance ______ LocalHiring 4yearsafterEffectiveDate–Manninglevels [pg70] 20% Managerial,supervisoryandprofessional 35% Skilledandtechnical 90% Administrative,clericalandsupportstaff ______ Ringfencing Yes Expl.costsrecoverablefromentirearea [pg31] DevcostsandbonusesrecoverablefromDev.Area ______ Gvt.Participation 1/7 th (14.28%)[TheseinterestswerelatersoldtoPhillips/Inpex]

KashaganandTengiz–CastorandPollux21 DanielJohnston&Co.,Inc. TengizContract (JointVenture) Summary 50/50%JV (JointEnterprise) Chevron/Tengizneftegaz 18May,1992 ______ Duration 10yearsextendedfor3subsequent10-yearperiods(40yearstotal) ______ Bonus $5MMsignature $25MMuponcompletionofFoundationAgreement $350MMinescrowforTengizneftegazobligations $210MM+interestafter90days continuousoperationofexportsystem $210MMadditionalpayment+interest subjecttovariousconditions regardingexportsystem $10MM/yearsocialwelfaredevelopmentfund Rentals None ______ Royalty $20MMinyear1ofoperations $30MMinyear2 $40MMinyears3and4 18%thereafteruntilprojectreaches17%ROR 25%thereafter (allowingnetbackoftransportationcostsandfacilities) ______ ProfitShare 50/50%betweeneachJointEnterprisepartner ______ Taxation 30%CorporateIncomeTax 15%Repatriation/DividendTax 20%Distributedreceivedloaninterest ______ Depreciation 5yearSLD ______ ExcessProfitsTax ROR *EPT <20%0%Basedonnetcashflow 20-25%5 25-30%15 >30%25 ______ Ringfencing Yes ______ Gvt.Participation 50%Tengizneftegaz

KashaganandTengiz–CastorandPollux22 DanielJohnston&Co.,Inc. Abbreviations $ UnitedStatesDollar $M ThousandsofDollars $MM MillionsofDollars 2-D Two-Dimensional(asinSeismicdata) 3-D Three-Dimensional(asinSeismicdata) AGIPKCO AGIPKazakhstanNorthCaspianOperatingCompanyN.V. API AmericanPetroleumInstitute APO AfterPayout BBL Barrel BCPD BarrelsCondensatePerDay BG BritishGas BOPD BarrelsofOilperday BP BritishPetroleum(BritishPetroleum/Amoco) BP/Amoco BritishPetroleum/Amoco BPO BeforePayout BTC Baku-Tbilishi-Ceyhanpipeline BTU BritishThermalUnit C Centigrade Capex CapitalExpenditures CPC CaspianPipelineConsortium C/R CostRecovery Dev. Development DMO DomesticMarketObligation ENI ItalianNationalOilCompany(Agip-ENI) ERR EffectiveRoyaltyRate F Fahrenheit ft Feet Gvt. Government GOR GasOilRatio(asincubicfeetperbarrelorcubicmetersperton) G&A GeneralandAdministrative(Costs) H2S HydrogenSulfide IRR InternalRateofReturn ROR RateofReturn(sameasIRR)asin“RateofReturnSystems” JOA JointOperatingAgreement JSC JointStockCompany JV JointVenture KCS KazakhstanCaspieShelf KE-1 KashaganEast-1well KE-2 KashaganEast-2well KW-1 KashaganWest-1well m meters M Thousand MB Moulavi-Bazar MCF ThousandCubicFeet(Gas) MM Million MMBBLS MillionBarrels MMBOPD MillionBarrelsofOilperDay MMCFD MillionCubicFeet(ofGas)perDay MMSCF MillionStandardCubicFeet(Gas) MMSCFD MillionStandardCubicFeet(Gas)perDay mol molecularasinmolvolormol% molvol molecularvolume mol% percentmolecularvolume N/A NotavailableorNotapplicable No. Number

KashaganandTengiz–CastorandPollux23 DanielJohnston&Co.,Inc. OKIOC OffshoreKazakhstanInternationalOperatingCompany Opex OperatingExpenditures(OperatingCosts) P&A PluggedandAbandoned P/O ProfitOil PSA ProductionSharingAgreement(SameasPSCbutamorepoliticallycorrectterm) PSC ProductionSharingContract PSI PoundsperSquareInch PSI/ft PoundsperSquareInchperfoot th P50 ProbabilisticReserveFigure-50 Percentile(Proved+Probabletypically) Rf “Rfactor” ROR RateofReturn TCF TrillionCubicFeet(Gas) TFE TotalFinaElf Vn NotionalVolumeFactor(BillionsofBarrels) vs versus(Latin) wt% weightpercent ° degree Footnotes 1.GordonBarrows,BarrowsCompanyInc.,–NewYork 2.10-60billionbarrels–Reuters;October9,2000 50billionbarrels–InternationalHeraldTribune,November15,2000 13-14billiontonnesofoil(approximately100billionbarrels)–ITAR/TASSNewsFeb.2,2001 6.4–10billionbarrels–“Newworldoilreserves...”,IHSEnergyReport,Reuters;July12,2001 30billionbarrels–TheGuardian,February3,2001 3.PhillipsPetroleumCompany2001FactBook,page27 4.OKIOCwebsiteOct.23,2001 5.Agip-ENIannouncement22October,2001SanDonatoMilanese 6. OffshoreMagazine,August2001,v61i8page136 7.Connell,D.,Oil&GasJournal,Vol98,Issue24,12June,2000 8.TheRussiaJournal,November02-08,2001”OilgiantholdstalksoverBTCpipeline” 9.LeVine,S.,TheNewYorkTimesontheweb,September15,1998“PhillipsPetroleumandJapaneseinBig KazakhExplorationDeal 10.PlattsOilgramNews,23July,2001 11.PhillipsPetroleumCompany2001FactBook,page28 KashaganandTengizcontractsfromGordonBarrows,BarrowsCompanyInc.,–NewYork KashaganandTengizcontractsummariesfrom:“ InternationalPetroleumFiscalSystemsAnalysis ” PennWellBooks,2001byDanielJohnston

KashaganandTengiz–CastorandPollux24 DanielJohnston&Co.,Inc.