pre_text: supplementary information on oil and gas producing activities ( unaudited ) c o n t i n u e d summary of changes in standardized measure of discounted future net cash flows relating to proved oil and gas reserves ( in millions ) 2006 2005 2004 sales and transfers of oil and gas produced , net of production , transportation and administrative costs $ ( 5312 ) $ ( 3754 ) $ ( 2689 ) net changes in prices and production , transportation and administrative costs related to future production ( 1342 ) 6648 771 .
post_text: .
table: <i>(In millions)</i> 2006 2005 2004
table: Sales and transfers of oil and gas produced, net of production, transportation and administrative costs $(5,312) $(3,754) $(2,689)
table: Net changes in prices and production, transportation and administrative costs related to future production (1,342) 6,648 771
table: Extensions, discoveries and improved recovery, less related costs 1,290 700 1,349
table: Development costs incurred during the period 1,251 1,030 609
table: Changes in estimated future development costs (527) (552) (628)
table: Revisions of previous quantity estimates 1,319 820 948
table: Net changes in purchases and sales of minerals in place 30 4,557 33
table: Accretion of discount 1,882 1,124 757
table: Net change in income taxes (660) (6,694) (627)
table: Timing and other (14) 307 97
table: Net change for the year (2,083) 4,186 620
table: Beginning of year 10,601 6,415 5,795
table: End of year $8,518 $10,601 $6,415
table: Net change for the year from discontinued operations $(216) $162 $(152)
question: Analyse this data from a financial earnings document. if the 2007 year shows the same rate of change as 2006 , what would the projected ending cash flow balance be , in millions?