CHICON CREEK

Oil // district 1 // lease#14898

op: TXCO RESOURCES INC.

cum_oil

56k BBL

cum_gas

0 MCF

wells

2

production

2007-12 — 2023-10

peak_month

2008-02

-- production_history

cum_oil: 56,278 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,507 BBL/mo

Di (annual)

975.6%

b-factor

0.9

EUR

21,427 BBL

R-squared

0.418

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1TXCO RESOURCES INC.310,0002009-10-19
2RIO-TEX, INC.28,0002009-08-13
EOF // data source: Texas Railroad Commission // 2026