CHADBOURNE RANCH '431' -A-

Oil // district 9 // lease#13295

op: WESTPORT OIL AND GAS COMPANY, LP

cum_oil

572k BBL

cum_gas

0 MCF

wells

17

production

1993-01 — 2008-03

peak_month

1995-01

-- production_history

cum_oil: 571,949 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

28,534 BBL/mo

Di (annual)

83.7%

b-factor

0.0

EUR

409,084 BBL

R-squared

0.789

type

exponential

-- wells (17)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
23CODA ENERGY, INC.16,0001996-06-11
20CODA ENERGY, INC.16,0001995-02-01
22CODA ENERGY, INC.16,0001995-02-01
16CODA ENERGY, INC.16,0001994-10-26
17CODA ENERGY, INC.16,0001994-10-26
15CODA ENERGY, INC.16,0001994-08-04
10CODA ENERGY, INC.16,0001994-07-26
9CODA ENERGY, INC.15,8001994-04-26
12CODA ENERGY, INC.15,8001994-03-15
8MJM OIL & GAS, INC.15,8001993-10-07
7MJM OIL & GAS, INC.15,8001993-09-17
3MJM OIL & GAS, INC.15,9001993-06-01
2MJM OIL & GAS, INC.15,9001992-09-24
6ADAMS BRANCH EXPLORATION COMPANY15,7001992-08-05
1MJM OIL & GAS, INC.15,9001992-06-18
5WAGMAN PETROLEUM, INC.15,9001991-12-18
4WAGMAN PETROLEUM, INC.15,9001991-08-29
EOF // multi-state drilling data platform // 2026