1
EXHIBIT 99.1
UNION PACIFIC RESOURCES GROUP INC.
PROVED RESERVES
AS OF DECEMBER 31, 1999
PROVED RESERVES
The following table reflects estimated quantities of proved oil and gas
reserves, which have been prepared by the Company's petroleum engineers. The
Company considers such estimates to be reasonable; however, there are numerous
uncertainties inherent in estimating quantities of proved reserves, including
many factors beyond the control of the Company. Reserve engineering is a
subjective process which is dependent on the quality of available data and on
engineering and geological interpretation and judgment. Such reserve estimates
are subject to change over time as additional information becomes available.
UNITED OTHER
STATES CANADA INTERNATIONAL WORLDWIDE
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NATURAL GAS (BCF): 1999
Beginning of year ........................... 2,400.7 993.8 44.6 3,439.1
Revisions of previous estimates ............. (45.1) (21.6) (13.3) (80.0)
Extensions, discoveries and other additions . 280.5 147.2 5.5 433.2
Purchases of reserves-in-place .............. 11.8 1.5 -- 13.3
Sales of reserves-in-place .................. (13.4) (34.7) -- (48.1)
Production .................................. (362.5) (101.4) (2.8) (466.7)
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Total proved, end of year ............. 2,272.0 984.8 34.0 3,290.8
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Proved developed reserves ............. 1,890.7 770.9 29.9 2,691.5
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NATURAL GAS LIQUIDS (MMBBL): 1999
Beginning of year ........................... 64.8 26.5 -- 91.3
Revisions of previous estimates ............ (2.4) (6.9) -- (9.3)
Extensions, discoveries and other additions 3.0 0.6 -- 3.6
Purchases of reserves-in-place ............. 0.4 -- -- 0.4
Sales of reserves-in-place ................. (0.4) (12.3) -- (12.7)
Production ................................. (9.6) (0.7) -- (10.3)
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Total proved, end of year ............. 55.8 7.2 -- 63.0
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Proved developed reserves ............. 53.6 6.2 -- 59.8
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CRUDE OIL, INCLUDING CONDENSATE (MMBBL): 1999
Beginning of year .......................... 112.8 96.3 147.1 356.2
Revisions of previous estimates ............ (10.7) (7.7) 16.9 (1.5)
Extensions, discoveries and other additions 8.7 15.0 2.0 25.7
Purchases of reserves-in-place ............. 0.1 -- 2.0 2.1
Sales of reserves-in-place ................. (0.4) (0.3) -- (0.7)
Production ................................. (15.9) (10.5) (16.3) (42.7)
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Total proved, end of year ............. 94.6 92.8 151.7 339.1
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Proved developed reserves ............. 64.6 60.1 92.1 216.8
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PROVED RESERVES EQUIVALENT, END OF 1999 (BCFE) (1)
Natural gas ................................ 2,272.0 984.8 34.0 3,290.8
Natural gas liquids ........................ 334.8 43.2 -- 378.0
Crude oil, including condensate ............ 567.6 556.8 910.2 2,034.6
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Total proved .......................... 3,174.4 1,584.8 944.2 5,703.4
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Proved developed reserves ............. 2,599.9 1,168.7 582.5 4,351.1
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(1) Calculated using the ratio of one Bbl to six Mcf.