46 d e v o n e n e r g y a n n u a l r e p o r t 2 0 0 4 contents of gas produced , transportation availability and costs and demand for the various products derived from oil , natural gas and ngls . substantially all of devon 2019s revenues are attributable to sales , processing and transportation of these three commodities . consequently , our financial results and resources are highly influenced by price volatility . estimates for devon 2019s future production of oil , natural gas and ngls are based on the assumption that market demand and prices will continue at levels that allow for profitable production of these products . there can be no assurance of such stability . most of our canadian production is subject to government royalties that fluctuate with prices . thus , price fluctuations can affect reported production . also , our international production is governed by payout agreements with the governments of the countries in which we operate . if the payout under these agreements is attained earlier than projected , devon 2019s net production and proved reserves in such areas could be reduced . estimates for our future processing and transport of oil , natural gas and ngls are based on the assumption that market demand and prices will continue at levels that allow for profitable processing and transport of these products . there can be no assurance of such stability . the production , transportation , processing and marketing of oil , natural gas and ngls are complex processes which are subject to disruption from many causes . these causes include transportation and processing availability , mechanical failure , human error , meteorological events including , but not limited to , hurricanes , and numerous other factors . the following forward-looking statements were prepared assuming demand , curtailment , producibility and general market conditions for devon 2019s oil , natural gas and ngls during 2005 will be substantially similar to those of 2004 , unless otherwise noted . unless otherwise noted , all of the following dollar amounts are expressed in u.s . dollars . amounts related to canadian operations have been converted to u.s . dollars using a projected average 2005 exchange rate of $ 0.82 u.s . to $ 1.00 canadian . the actual 2005 exchange rate may vary materially from this estimate . such variations could have a material effect on the following estimates . though we have completed several major property acquisitions and dispositions in recent years , these transactions are opportunity driven . thus , the following forward-looking data excludes the financial and operating effects of potential property acquisitions or divestitures , except as discussed in 201cproperty acquisitions and divestitures , 201d during the year 2005 . the timing and ultimate results of such acquisition and divestiture activity is difficult to predict , and may vary materially from that discussed in this report . geographic reporting areas for 2005 the following estimates of production , average price differentials and capital expenditures are provided separately for each of the following geographic areas : 2022 the united states onshore ; 2022 the united states offshore , which encompasses all oil and gas properties in the gulf of mexico ; 2022 canada ; and 2022 international , which encompasses all oil and gas properties that lie outside of the united states and canada . year 2005 potential operating items the estimates related to oil , gas and ngl production , operating costs and dd&a set forth in the following paragraphs are based on estimates for devon 2019s properties other than those that have been designated for possible sale ( see 201cproperty acquisitions and divestitures 201d ) . therefore , the following estimates exclude the results of the potential sale properties for the entire year . oil , gas and ngl production set forth in the following paragraphs are individual estimates of devon 2019s oil , gas and ngl production for 2005 . on a combined basis , devon estimates its 2005 oil , gas and ngl production will total 217 mmboe . of this total , approximately 92% ( 92 % ) is estimated to be produced from reserves classified as 201cproved 201d at december 31 , 2004 . oil production we expect our oil production in 2005 to total 60 mmbbls . of this total , approximately 95% ( 95 % ) is estimated to be produced from reserves classified as 201cproved 201d at december 31 , 2004 . the expected production by area is as follows: .
how much of the oil production is estimated to be produced from unproved reserves at dec 31 , 2004 , in mmbbls?
oil prices 2013 fixed through various price swaps , devon has fixed the price it will receive in 2005 on a portion of its oil production . the following table includes information on this fixed-price production by area . where necessary , the prices have been adjusted for certain transportation costs that are netted against the prices recorded by devon. .