DUVAL COUNTY RANCH CO. -T-

Oil // district 4 // lease#3599

op: HOLCOMB COMPANY, THE

cum_oil

11k BBL

cum_gas

0 MCF

wells

4

production

1993-01 — 2011-08

peak_month

1993-07

-- production_history

cum_oil: 11,222 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

126 BBL/mo

Di (annual)

36.4%

b-factor

1.8

EUR

19,639 BBL

R-squared

0.820

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
21TANA OIL AND GAS CORPORATION32,3002009-04-23
242-131-02400--------
442-131-02402--------
642-131-02403--------
EOF // data source: Texas Railroad Commission // 2026