GEODYNE ENERGY INCOME PROGRAMS
2002 YEAR-END ESTIMATED VALUATION ON A PER UNIT BASIS(1)
CASH DISTRIBUTIONS PER UNIT
---------------------------
2001 YEAR-END CUMULATIVE
FORMATION UNIT 2002 YEAR END PER UNIT ESTIMATED 2002 DISTRIBUTIONS
P/SHIP DATE SIZE ESTIMATED VALUATION(2) VALUATION(2) TOTAL THRU 12/31/2002
- -------- ---------- ------ ----------------------- ------------- ---------- ---------------
III-A 11/21/89 $100 $38.45 $28.29 $8.88 $128.60
III-B 01/24/90 $100 $33.41 $28.18 $9.39 $140.42
III-C 02/27/90 $100 $47.29 $22.72 $4.77 $104.98
III-D 09/05/90 $100 $52.80 $24.86 $3.75 $107.32
III-E 12/26/90 $100 $43.05 $21.94 $0.63 $106.04
III-F 03/08/91 $100 $46.08 $21.40 $2.60 $78.29
III-G 09/20/91 $100 $49.15 $22.71 $2.97 $78.31
(1) This chart must be read in connection with the letter dated January 28,
2003, providing important assumptions and other information on the
methodology used to calculate these estimates.
(2) 2002 Year-End estimates use $28.00 per barrel of oil and $4.74 per thousand
cubic feet ("MCF") of gas compared to $16.75 per barrel and $2.65 per MCF
of gas for the 2001 Year-End estimates.